CM42 pH ORP Operating Instruction

7/30/2019 CM42 pH ORP Operating Instruction

1/44

CM42-MAA301EAE00

BA00381C/07/EN/14.12

Valid as of:

Software version 10.07.00

Operating Instructions

Liquiline M CM42Two-wire transmitter for pH/ORP measurement withMemosens glass sensors

Part 1: Commissioning


2/44

Documentation information

Warnings

The structure, signal words and color coding of the warnings follow the specifications of ANSI Z535.6

("Product safety information in product manuals, instructions and other collateral materials").

Symbols used

Structure of the safety

symbol

Meaning

DANGER!

Causes (/consequences)

Possible consequences if ignored

Preventive measures

This symbol alerts you to a dangerous situation.

Failure to avoid this situationwill result in serious or fatal injury.

WARNING!



Preventive measures

This symbol alerts you to a dangerous situation.Failure to avoid this situation can result in serious or fatal injury.

CAUTION!



Preventive measures

This symbol alerts you to a dangerous situation.

Failure to avoid this situation can result in medium or minor

injury.

NOTICE

Cause/situation


Action/note

This symbol alerts you to situations that can cause damage to

equipment or property.

Additional information, tips

Permitted or recommended

Forbidden or not recommended


3/44

Documents supplied

Operating Instructions

CD-ROM

Contents:

Measuring technology fundamentals

Communication fundamentals

Overview of analytical measuring technology

Accessories

Safety

Ordering information

In addition

1 manufacturer's certificate

Adhesive labels:

Interior nameplate

Wiring adhesive label

Attach these adhesive labels to the inside of the cover.

The Operating Instructions are split into two parts:

Commissioning Description of your device

All steps that you have to carry outonce onlyduring initial commissioning

Software history

Technical data

Operation

Software description

All steps that you have to carry out during the routine operation of your device, depending on

your measuring task

Maintenance and accessories Diagnostics and troubleshooting


4/44

CM42-MAA301EAE00

4

Table of contents

1 Basic safety instructions . . . . . . 51.1 Requirements for personnel . . . . . . . . . . . . 5

1.2 Designated use . . . . . . . . . . . . . . . . . . . . . . 5

1.3 Occupational safety . . . . . . . . . . . . . . . . . . 5

1.4 Operational safety . . . . . . . . . . . . . . . . . . . . 5

1.5 Product safety . . . . . . . . . . . . . . . . . . . . . . 6

2 Identification. . . . . . . . . . . . . . . 72.1 Device designation . . . . . . . . . . . . . . . . . . . 7

2.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . 8

2.3 Reordering documentation . . . . . . . . . . . . . 8

2.4 Certificates and approvals . . . . . . . . . . . . . . 9

3 Device description . . . . . . . . . 103.1 Housing closed . . . . . . . . . . . . . . . . . . . . . 10

3.2 Housing open . . . . . . . . . . . . . . . . . . . . . . 10

4 Installation . . . . . . . . . . . . . . . 114.1 System setup . . . . . . . . . . . . . . . . . . . . . . 11

4.2 Installation conditions . . . . . . . . . . . . . . . 12

4.3 Installation instructions . . . . . . . . . . . . . . 14

4.4 Post-installation check . . . . . . . . . . . . . . . 16

5 Wiring . . . . . . . . . . . . . . . . . . . 175.1 Electrical connection . . . . . . . . . . . . . . . . 17

5.2 Post-connection check . . . . . . . . . . . . . . . 23

6 Commissioning . . . . . . . . . . . . 246.1 Function check . . . . . . . . . . . . . . . . . . . . 24

6.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.3 Operation concept . . . . . . . . . . . . . . . . . . 26

6.4 Position of the DIL switches . . . . . . . . . . . 266.5 Communication . . . . . . . . . . . . . . . . . . . . 27

6.6 Quick Setup (local operation) . . . . . . . . . . 29

6.7 Measuring display (MEAS) . . . . . . . . . . . . 30

7 Calibration and adjustment. . . 317.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . 31

7.2 Zero point and slope . . . . . . . . . . . . . . . . . 32

7.3 Notes on the calibration . . . . . . . . . . . . . . 32

7.4 Calibration intervals . . . . . . . . . . . . . . . . . 33

7.5 Types of calibration . . . . . . . . . . . . . . . . . 34

7.6 Two-point calibration . . . . . . . . . . . . . . . . 34

7.7 Single-point calibration . . . . . . . . . . . . . . 35

7.8 Temperature adjustment . . . . . . . . . . . . . 36

7.9 Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . 36

8 Software history. . . . . . . . . . . .38

9 Technical data . . . . . . . . . . . . .409.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

9.2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . 40

9.3 Electrical connection . . . . . . . . . . . . . . . . 40

9.4 Performance characteristics . . . . . . . . . . . 40

9.5 Environment . . . . . . . . . . . . . . . . . . . . . . 41

9.6 Mechanical construction . . . . . . . . . . . . . 41

Index . . . . . . . . . . . . . . . . . . . .42
http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/


5/44

CM42-MAA301EAE00 Basic safety instructions

Endress+Hauser 5

1 Basic safety instructions

1.1 Requirements for personnel

Installation, commissioning, operation and maintenance of the measuring system must only be

carried out by trained technical personnel. The technical personnel must be authorized to perform the tasks by the owner-operator.

The electrical connection may only be established by an electrical technician.

The technical personnel must have read and understood these Operating Instructions and must

follow the instructions they contain.

Faults at the measuring point may only be rectified by authorized and properly trained personnel.

Repairs not described in the enclosed Operating Instructions may only be carried out directly at

the manufacturer's or by the Service Organization.

1.2 Designated use

Liquiline M CM42 is a two-wire transmitter for liquid analysis in all areas of process engineering.

The primary applications comprise:

Chemical processes

Pharmaceutical industry

Food technology

The use of the transmitter depends strongly on the sensor deployed. For this reason, please pay

attention to the information on "designated use" provided in the sensor manual.

The transmitter is suitable for pollution degree 3.

If the device is used for any purpose other than that described, this poses a threat to the safety of people

and the entire measuring system and is thus not permitted.

The manufacturer does not accept liability for damage caused by improper or non-designated use.

1.3 Occupational safety

As the user, you are responsible for observing the following safety regulations:

Installation guidelines

Local standards and regulations

1.4 Operational safety

Prior to commissioning the entire measuring point, check that all connections are correct. Make

sure that electric cables and hose connections are not damaged.

Do not commission damaged products. Protect them against unintentional startup. Label and

identify the damaged product as defective.

If the faults cannot be eliminated, take the products out of service and protect them against

unintentional startup.


6/44

Basic safety instructions CM42-MAA301EAE00

6 Endress+Hauser

1.5 Product safety

The product is designed to meet state-of-the-art safety requirements, has been tested and left the factory

in a condition in which it is safe to operate.

The applicable regulations and European standards have been taken into account.


7/44

CM42-MAA301EAE00 Identification

Endress+Hauser 7

2 Identification

2.1 Device designation

2.1.1 Nameplate

Nameplates can be found:

On the outside of the housing (lasered)

On the packaging (adhesive label, portrait format)

On the adhesive label sheet provided (landscape format, for your own use)

Compare the data on the nameplate with your order.

The nameplate provides you with the following information on your device:

Order code

Serial number

Device version (software package) Measuring range(s)

Input, output values

Approvals (depending on the version ordered)

Protection class

Ambient temperature range

Approval symbols

Safety notices, warnings

2.1.2 Serial number and order codeThe order code and serial number of your device can be found in the following locations:

On the nameplate

On the front page of the Operating Instructions supplied

In the delivery papers

The documentation only contains information that was valid at the time of delivery. If you have

any queries, contact your local sales center.


8/44

Identification CM42-MAA301EAE00

8 Endress+Hauser

2.1.3 Interpreting the order code

You can create a valid and complete order code on the Internet using the Configurator tool.

Enter the following address in the browser to launch the product page:

www.products.endress.com/cm42

1. You can choose from the following options on the right-hand side of the Product page:

2. Click "Configure this product".

3. The Configurator opens in a new window.Using the selection buttons configure the order code on the nameplate of your device.

4. You can export the order code and the product details as a PDF or Excel file.

To do so, click the specific button at the top of the page.

2.2 Scope of delivery

1 transmitter in the version ordered

1 mounting plate incl. 4 flat head screws

1 sheet of adhesive labels (nameplate, terminal connection diagrams)

Operating Instructions Part 1 and 2, BA381C "Commissioning" and BA382C "Operation" in the

language ordered

1 CD-ROM with additional documentation

1 manufacturer's certificate

If you have any queries, please contact your supplier or local sales center.

2.3 Reordering documentation

What to order?

Reordering lost documentation or documentation of which several copies are required:You must quote the serial number of your device.

You receive the same documentation as received with the delivery.

First time ordering appropriate documentation for devices whose function you have modified yourself

by installing a module:

You have to indicate the order code the device corresponds to after installing the module. Specify a

serial number also.

You receive the documentation to suit your newly modified device.

How to order?

On the Internet: www.endress.com/liquiline-documentationYou receive PDF files of both parts of the Operating Instructions.


9/44

CM42-MAA301EAE00 Identification

Endress+Hauser 9

Through your sales center:

Indicate you want the documentation as hard copy.

The order code of the device described, and its serial number, are printed on the front page of the

original brochures. Furthermore, it is possible to specify a tag name.

The serial number and tag name are notpart of the PDF files which you can download over the

Internet or through W@M access.

2.4 Certificates and approvals

With this declaration, the manufacturer guarantees that the product conforms to the regulations of

European Directive 2004/108/EC and Low Voltage Directive 2006/95/EC. This is proven by

observing the standards listed in the Declaration of Conformity.


10/44

Device description CM42-MAA301EAE00

10 Endress+Hauser

3 Device description

3.1 Housing closed

3.2 Housing open

a0001067

Fig. 1: Liquiline with closed display cover

12345-8

Wall securing plateAlarm LEDDisplayNavigatorSoft keys,assignment depends on menu

a0010278

Fig. 2: With open display cover (without wiring)

1

23

Slot for DAT module

CPU moduleSensor module

4

56

DIN rail

Threaded jointsCDI socket (service interface)


11/44

CM42-MAA301EAE00 Installation

Endress+Hauser 11

4 Installation

4.1 System setup

A complete system consists of:

Liquiline M CM42 An immersion assembly, e.g. CPA140 or flow assembly, e.g. CPA240 or retractable assembly, e.g.

CPA475; each with or without a potential matching pin (PML)

A pH/ORP sensor with Memosens technology: e.g. CPS11D

A measuring cable: CYK10

A programmable logic controller (PLC) with FOUNDATION Fieldbus interface incl. PC and operating

software and terminating resistor

a0002655

Fig. 3: Example of a measuring system

123

PC with operating programPLCLiquiline M CM42

456

Special measuring cableSensor and assemblyTerminating resistor


12/44

Installation CM42-MAA301EAE00

12 Endress+Hauser

4.2 Installation conditions

4.2.1 Dimensions

a0011834

Fig. 4: Dimensions

164

(6

.46)

148

(5

.83)

110

(4

.33)

220 (8.66)

177

(6

.97)

2

(0

.0

8) 130 (5.12)

138 (5.43)

144 (5.67)

144

(5

.67)

22

(0

.87)

95

(3

.74)

mm (inch)


13/44


Endress+Hauser 13

4.2.2 Mounting plate

4.2.3 Weather protection cover

NOTICE

Effect of climatic conditions (rain, snow, direct sun etc.)

Impaired operation to complete transmitter failure

When installing outside, always use the weather protection cover (accessory).

a0010363

Fig. 5: Mounting plate

a0001671

Fig. 6: Weather protection cover

220 (8.66)

85 (3.35)

70 (2.76)

141 (5.55)

196 (7.72)

70

(2

.76)

85 (3.35)

95

(3

.74)

mm (inch)

122

2 x R8 2 x R3

R3

2 x R8

2

(0

.08

)

86 (3.39)

112 (4.41)

161 (6.34)

4 x

6(0.24)

2

x 11

(0.43)

4x

7(0.28)

80

(3

.15)

2 x R70


14/44


14 Endress+Hauser

4.3 Installation instructions

4.3.1 Wall or field mounting

There are many ways of mounting the device:

Wall mounting

Mounting on a vertical pipe or post (round or square)

Mounting on railing or on a horizontal pipe (round or square)

Diameter of a pipe, post or railing suitable for mounting:

30 to 61 mm (1.18 to 2.40").

You require the post retainer when mounting. This is an accessory and is not included in the scope

of delivery (see "Accessories").

a0010373

Fig. 7: Mounting on a vertical pipe/post

1 Liquiline 2 Mounting plate (part of scope of delivery for Liquiline)3 Pipe or post (circular/square)4 Mounting plate (post retainer, --> "Accessories")5 Threaded rods with spring washer, washer and nut (part of scope of delivery for post retainer)

1 2 3

45


15/44


Endress+Hauser 15

a0010371

Fig. 8: Mounting on a horizontal pipe/railing

1 Liquiline 2 Mounting plate (part of scope of delivery for Liquiline)3 Pipe or railing 4 Mounting plate (post retainer, --> "Accessories")5 Threaded rods with spring washer, washer and nut (part of scope of delivery for post retainer)

a0010382

Fig. 9: Wall mounting


16/44


16 Endress+Hauser

4.3.2 Panel mounting

For panel mounting, you need the installation kit consisting of tensioning screws and a front seal. This

is an accessory (see "Accessories") and is not included in the scope of delivery.

If installing the units above one another, you must observe a minimum distance for the cable glands

of the upper device.

If installing the units beside one another, you must observe a minimum distance for opening the

front of the housing.

If arrangingin a square, you must take into account the lengths of the mounting plates at the rear

of the device or the cable glands for minimum spacing distance.

4.4 Post-installation check

After installation, check the transmitter for damage.

Check whether the transmitter is protected against precipitation and direct sunlight (e.g. by the

weather protection cover).

a0002402

Fig. 10: Panel mounting: left side view, right front view


17/44

CM42-MAA301EAE00 Wiring

Endress+Hauser 17

5 Wiring

5.1 Electrical connection

WARNING!

The device is live!

Incorrect wiring can result in injury or fatality

The electrical connection may only be established by an electrical technician.

The electrical technician must have read and understood these Operating Instructions and must fol-

low the instructions they contain.

Prior to beginningany wiring work, make sure voltage is not applied to any of the cables.

5.1.1 Opening the housing

1. Loosen the four screws on the front with a Phillips screwdriver:

2. Open the housing:

NOTICE

Pointed or sharp tools

Damaged housing seal and scratched housing Do not use any sharp or pointed tools, such as screwdrivers or knives, to open the housing.


18/44

Wiring CM42-MAA301EAE00

18 Endress+Hauser

5.1.2 Housing grounding

WARNING!

Electric voltage at ungrounded cable mounting rail

No shock protection

Connect the cable mounting rail to the foundation ground with a separate 2.5 mm2

(14 AWG)functional ground.

5.1.3 Cable grounding in housing

If possible, only use terminated genuine cables.

Ground the sensor cable in the housing of the transmitter as shown in the following diagrams

(sample cable, does not necessarily correspond to the original cable).

a0003617

Fig. 11: Grounding the housing12

Cable mounting rail2.5 mm2(14 AWG) functional ground

a0002679

Fig. 12: Terminated cable (example)

1 Outer shield (exposed) 2 Cable cores with ferrules 3 Cable sheath (insulation)

a0002680

Fig. 13: Inserting the cable

4 Grounding clip

a0002681

Fig. 14: Tightening the screw, the cableshield is grounded by the

grounding clip


19/44


Endress+Hauser 19

5.1.4 Cable terminals

Single-wire, multi-wire and fine-wire cables can be used for the connection, with and without

ferrules. Only one wire is permitted per terminal.

5.1.5 Signal output / power supply

NOTICE

Incorrect supply voltage can cause damage or a malfunction

Comply with the specifications on the permitted and minimum supply voltage (see "Electrical con-

nection" under Technical data).

Use a fieldbus cable grounded at both ends (device and PCS).

There are various ways of connecting the unit:

1. Two-wire cabling shielded on both sides, "hard grounding"

(generally to be given priority over "capacitive connection to ground")

2. Shielded two-wire cabling, "capacitive connection to ground" (shield grounded on device side via

capacitor, "C-module" accessory required)

If there is a risk of large potential equalization currents.

3. Use the fieldbus connection socket (accessories)

"Hard grounding"

Connect the cable shield to the cable mounting rail.

a0003602

Fig. 15: Opening the terminal

1. Insert a suitable screwdriver into the opening of the

terminal spring (square opening) until the stop.

a0003603

Fig. 16: Inserting the cable

2. Insert the terminated cable end into the terminal

opening (round opening).

a0003604

Fig. 17: Releasing the terminal spring

3. Remove the screwdriver. Make sure the cable is

securely positioned in the terminal.


20/44


20 Endress+Hauser

Connect the cable cores as per the assignment ( 18).

"Capacitance ground connection"

Pull back the braided shield, put the stranded extension wire of the C-module (item 1) onto the

exposed shield and tighten the clip:

Connect the extension wire to the cable mounting rail.

Connect the cable cores as per the assignment ( 20).

a0004061

Fig. 18: View in device (CPU module)a0002367

Fig. 19: Wiring diagram


21/44


Endress+Hauser 21

"Fieldbus connection socket"

Screw the fieldbus connection socket into the housing bushing.

Trim the connection cores of the socket to approx. 15 cm.

Connect the cable cores as per the assignment. In doing so, you must connect the cable shield

(GN/YE) to the cable mounting rail ( 22).

a0004072



a0002364




22/44


22 Endress+Hauser

5.1.6 Sensor connection

pH sensors suitable for connection

Glass electrodes: CPS11D, CPS41D, CPS71D, CPF81D, CPS91D

Pfaudler electrodes: CPS341D

ORP sensors suitable for connection CPS12D, CPS42D, CPS72D, CPF82D, CPS92D

pH/ORP combined sensors suitable for connection

CPS16D, CPS76D, CPS96D

The list of Endress+Hauser sensors provides examples only and does not claim to be exhaustive. For

more information on the technical data and the suitability of particular sensors for your measuring task,

please visit our online portal: www.products.endress.com

NOTICE

No shielding against electrical and magnetic interference

Interference can give erroneous measurement results

You must connect shield connections or terminals to the functional ground ( ) (there is no

protective ground on the plastic housing ( )).

Explanation of abbreviations in the following diagrams:

Abbreviation Meaning

U+Power supply of the digital sensor

U

Com ACommunication signals of the digital sensor

Com B

)


23/44


Endress+Hauser 23

5.2 Post-connection check

WARNING!

Wiring errorsIncorrect wiring puts the safety of people and the measuring point at risk. The manufacturer does not

accept any responsibility for errors that result from failure to comply with the instructions in this

manual.

Only put the transmitter into operation if you can answeryes to all of the following questions.

Device state and specifications

1. Are the transmitter and cables free from damage on the outside?

Electrical connection

2. Are the mounted cables strain relieved?3. Are the cables run without loops and cross-overs?

a0001087

Fig. 24: View in device (sensor module)a0001078



24/44

Commissioning CM42-MAA301EAE00

24 Endress+Hauser

4. Are the signal lines correctly connected in accordance with the wiring diagram?

5. Have you connected unused connection wires to the cable mounting rail?

6. Are all the connection wires securely positioned in the cable terminals?

7. Are all the cable entries installed, tightened and sealed?

6 Commissioning

6.1 Function check

WARNING!

Incorrect connection, incorrect supply voltage

Safety risks for staff and incorrect operation of the device

Check that all connections have been established correctly in accordance with the wiring diagram. Make sure that the supply voltage matches the voltage indicated on the nameplate.

6.2 Display

6.2.1 Overview

a0010019

Fig. 26: Local display (measuring mode)

123

Status lineDisplay and setting fieldAssignment of the soft keys


25/44

CM42-MAA301EAE00 Commissioning

Endress+Hauser 25

6.2.2 Status display

Symbol for the measuring menu (MEAS)

Device state is OK. No alarms or warnings are present.

Service warning. Maintenance is recommended.The device is operational; the reliability of the measured value may be restricted.

Alarm that points to an error.The device is no longer operational or the measured value is no longer reliable.

Measured value display in the status line if a menu other than MEAS is launched.The main value and the secondary value are displayed.

Symbol is displayed while the device is actively communicating via the fieldbus.

Symbol is displayed if user administration is switched on.


26/44


26 Endress+Hauser

6.3 Operation concept

6.4 Position of the DIL switches

You can set the simulation mode or the write protection directly in the device.To do so, change the switch positions of the DIL switch on the CPU module.

a0010029

Fig. 27: Pressing the soft key: selecting the menu directly

a0010035-en

Fig. 28: Turning the navigator: moving the cursor in the menu

a0010036-en

Fig. 29: Press navigator: select a functiona0010037-en

Fig. 30: Turn navigator: change value

a0010038-en

Fig. 31: Press navigator: accept new value

Operation concept

1. Select a menu directly by pressing the

appropriate soft key.

2. Move the cursor in the menu by turning thenavigator.

3. Select the desired function by pressing the

navigator.

4. Change the value by turning the navigator.

5. Accept the new value by pressing the

navigator.


27/44


Endress+Hauser 27

The factory setting of the switches is always "Off".

6.5 Communication

6.5.1 Device identification

6.5.2 Sequence during commissioning

Perform the steps of the commissioning procedure in the following sequence:

1. Supply the device with power (--> "Wiring")

2. Install the device description files3. Assign the PD_TAG

a0003106

Fig. 32: DIL switch on CPU module (without connectorstrip)

1 Simulation 2 Write protection

DIL switch assignment:

Simulation (switch 1):

(Only if switch 8 = "on")

Liquiline simulates measured values and outputs

these via the fieldbus interface. Write protection (switch 2):

(Only if switch 8 = "on")

You cannot make any device settings via the fieldbus

interface when the write protection is switched

"On".

All other switches (3-8) are not assigned functions at

the factory.

Manufacturer name: Endress+Hauser

Model name: Liquiline M CM42 pH/ORP

Manufacturer ID (hex): 452B48

Device Type (hex): 108FDevice Revision (hex): 1

Device Class (hex): Link Master

ITK Version: 4.6

Function and other Blocks: 1xRB, 6xAI, 4xTB

1

2

3

4

5

6

7

8

O

FF

O

N


28/44


28 Endress+Hauser

4. Configure the Resource Block

5. Configure the Transducer Blocks

6. Configure the Analog Input Blocks

7. Connect the function blocks in the editor

8. Download the configuration (Configure menu)

9. If necessary, check the configuration (SIMULATE function).

6.5.3 Required software and files

FF configuration program, e.g. NI-FBUS Configurator

Cff file (Common File Format: *.cff)

DD (Device Description: *.sym, *.ffo)

You must load these files into the intended directory before the configuration.

Make sure that you always use the correct file versions.

You can use the DEV_REV and DD_REV parameters in the Resource Block to read out therequired versions.

You can download the device descriptions from our homepage.

6.5.4 Configuring a device

1. Start the configuration program, e.g. NI-FBUS Configurator.

The network is then displayed as an extendable tree diagram.

If the device is connected correctly, it is detected automatically:

E+H_XXXXXXXXXXX

2. Double-clickon the device name.

The device data is then displayed:

PD_TAG (physical name of the device)

DEVICE_ID (unique device identification, consisting of:

452B48 --> Vendor-ID for Endress+Hauser

108F --> Dev_Type

XXXXXXXXXXX --> Serial number of the device, cf. nameplate

NODE_ADDRESS (device address in the FF network, is generally assigned automatically)

3. Click on the device name using the right mouse button.

This offers you access to the menu, in which you can change the PD_TAG.

4. Click on the device name using the left mouse button.This opens the tree diagram and displays the function blocks:

E+H_XXXXXXXXXX

RESOURCE_XXXXXXXXXX (RB2)

TRD_PHORP_XXXXXXXXXX (TBUL)

TRD_TEMP_XXXXXXXXXX (TBUL)

TRD_FSDG1_XXXXXXXXXX (TBUL)

TRD_SERVICE_XXXXXXXXXX (TBUL)

AI_1_XXXXXXXXXX (AI)




29/44


Endress+Hauser 29



6.5.5 Resource Block

Click on Resource Block and:

1. check the position of the hardware switch in WRITE_LOCK.

If "locked" is displayed, you have to change the position of the DIL switch on the CPU module.

2. Click on the Block-Tag using the right mouse button if you want to change it.

3. Set MODE_BLK_TARGET to "Out-of-Service".

4. Reset the device to the factory settings using the RESTART function.

You can also access this function by clicking on the device name with the right mouse button.

5. If necessary, assign a new tag description (TAG_DESC).

6. Set MODE_BLK_TARGET to "AUTO".

6.5.6 Transducer BlocksClick on the Transducer Blocks one after the other and:

1. Click on the Block-Tag using the right mouse button if you want to change it.



4. Configure the device and the sensor.


6.5.7 Analog Input Blocks

Click on the Analog Input Blocks one after the other and:1. Click on the Block-Tag using the right mouse button if you want to change it.



4. Set the channel to the measured value or distance.

5. Set L_TYPE to "DIRECT" if you want to have the OUT value specified in technical units.

Set L_TYPE to "INDIRECT" if you want to scale the OUT value.

6. Set the desired output damping in PV_TIME.

7. If necessary, set the indicating and critical alarms.


6.6 Quick Setup (local operation)

1. Connect the supply voltage.

2. Wait for the initialization to complete.

3. Completely work through the "Quick Setup" submenu in "SETUP".


30/44


30 Endress+Hauser

6.7 Measuring display (MEAS)

There are various display modes:

(Press the navigator button to change the mode)

1. Main value

2. Primary and secondary value

3. All measured values

Path:SETUP / Quick setup

Function Options Info

Language Options

Second language English

Factory settingSecond language

You selected the "second language" in the CM42 order code.

If the language is changed, the settings configured for thedevice remain intact.You can load another second language from the SystemDAT.--> SETUP/DAT menu

Date format Options DDMMYYYY MMDDYYYY

Factory settingDDMMYYYY

Editing mode:DD (day): 1 to 31MM (month): 1 to 12

YYYY (year): 2005 to 2100

Set date Depends on the format DDMMYYYY

Time format Options hhmmss (24h) hhmmss (am/pm)

Factory settinghhmmss (24h)

24-hour display or 12-hour display

Editing mode:hh (hour): 0 to 23 / 0 am to 12 pmmm (minutes): 0 to 59ss (seconds): 0 to 59

Set time Depends on the format hh:mm:ss

Measured value Options(depending on sensor type) pH ORP mV ORP % rH

Factory settingpHorORP mV

Some of the subsequent menus and their optionsdepend on the option selected here.

Measuring range rH: 0 to 42

Temperature unit Options C F

Factory settingC

Decide whether you want to use the ISO or the Americantemperature unit.

All the values and settings are automatically converted tomatch the option selected.


31/44

CM42-MAA301EAE00 Calibration and adjustment

Endress+Hauser 31

When you exit the measuring mode, the current measured value is displayed in the status bar in

the top left-hand corner:

7 Calibration and adjustment

The calibration provides important information on the condition of your sensor and the quality of

the pH measurement.

pH glass electrodes

In addition to the slope that has an ideal value of approx. -59 mV/pH at 25 C, the change in the zero

point also provides important information to the user. It is an indicator of the condition of the gel-like

layer of the pH glass and could point to a blockage in the reference system. Suitable maintenance would

involve cleaning or regenerating the sensor.

To perform a quick test, simply immerse the sensor in a buffer solution with the same pH value as the

internal buffer (e.g. pH 7). 0 mV would be an ideal value. The greater the deviation from the ideal value,

the poorer the condition of the sensor (20 mV is still acceptable in most situations).

7.1 DefinitionsCalibration (as per DIN 1319):

A calibration is defined as a set of operations that establish the relationship between the measured value

or expected value of the output variable and the related true or correct value of the measured variable

(input variable) for a measuring system under specified conditions.

A calibration does not alter the performance of the measuring device.

Adjustment

An adjustment corrects the value displayed by a measuring device, in other words the

measured/displayed value (the actual value) is corrected so that the reading agrees with the correct, set

value.

Sensor type Main value Main value / secondary value

All values

pH, glass pH value pH value, temperature Main value, raw value, temperature,glass impedance, reference impedance

pH and ORPcombined sensor

pH value or ORP or rH value pH value or ORP or rH value,temperature

Main values pH, ORP and rH(depending on measured value), raw

value, temperature, glass impedance,reference impedance

ORP ORP ORP, temperature Main value, raw value, temperature


32/44

Calibration and adjustment CM42-MAA301EAE00

32 Endress+Hauser

The value determined during calibration is used to calculate the correct measured value and saved in

the sensor.

7.2 Zero point and slope

Using a mathematical function, the transmitter converts the input signal of the sensor y (raw measuredvalue) to the measured value x. In many cases, this function is a simple linear of the form y = a + b . x.

The linear element "a" is usually equivalent to the zero point and the factor "b" is the slope of the line.

The Nernst equation, which is used to calculate the pH value, is a typical linear relationship:

pH = -lg(aH+), aH+ ... activity of the hydrogen ions

Ui ... raw measured value in mV

U0 ... zero point (=voltage at pH 7)

R ... relative gas constant (8.3143 J/molK)

T ... temperature [K]F ... Faraday constant (26.803 Ah)

The slope of the Nernst equation (-2.303RT/F) is known as the Nernst factor and has the value

-59.16 mV/pH at 25 C.

7.3 Notes on the calibration

The following rules apply for all parameters:

Calibrate in a way that reflects conditions in the process.

If the process medium is constantly moving, also move the calibration solution accordingly (e.g.

use a magnetic stirrer if calibrating in the laboratory).

a0013593

Fig. 33: Linear function

a Zero point b Slope

U = Ui 0 -2.303 RT

FpH


33/44


Endress+Hauser 33

If your medium is relatively stationary, calibrate in solutions that are also stationary.

Make sure that the samples are homogeneous for reference measurements, sample calibration etc.

Use the same menu settings as those in the process to perform the calibration.

Example: If you automatically compensate for the temperature effect during pH measurement, switch

on automatic temperature compensation for the calibration also.

It is advisable to perform the laboratory calibration using the "Memobase" database software (-->

"Accessories"). This improves the availability of your measuring points and all the calibration and

sensor data records are stored securely in the database.

7.4 Calibration intervals

The service life of a pH glass electrode is limited. This is due, in part, to the deterioration and aging of

the pH-sensitive membrane glass. This aging causes the gel-like layer to change and become thicker

over time.

Symptoms of aging include:

Higher membrane resistance

Slow response

Decrease in the slope

A change in the reference system (e.g. due to contamination, i.e. unwanted redox reactions at the

reference electrode) or electrolyte solution dissolving away in the reference half cell can change the

reference potential, which, in turn, causes a zero point shift in the measuring electrode.

To ensure a high level of accuracy, it is important to readjust the pH sensors at set intervals.

The calibration interval depends heavily on the area of application of the sensor, as well as the requiredlevel of accuracy and reproducibility. The calibration interval can vary between daily and once every

few months.

Defining the calibration interval for the process

1. Check the sensor with a buffer solution, e.g. pH 7.

Proceed as specified in Step 2 only if the value deviates from the set point. No

calibration/adjustment is necessary if the value is within the defined deviation tolerance range

(see the Technical Information for the sensor).

2. Calibrate and adjust the sensor.

3. After 24 hours, check again with the buffer solution.a. If the deviation is within the permitted tolerance range, increase the checking interval by

doubling it for example.

b. If the deviation is larger, you must shorten the interval.

4. Continue to proceed as defined in Steps 2 and 3 until you have identified the suitable interval.


34/44


34 Endress+Hauser

7.5 Types of calibration

7.5.1 pH measurement

The following types of calibration are possible:

Two-point calibration

With calibration buffers

Single-point calibration

Entry of a reference value

Sample calibration with laboratory comparative value

Temperature adjustment by entering a reference value

If using a combined sensor (CPS16D/CPS76D/CPS96D) you must calibrate both the pH electrode

and the ORP electrode to get reliable rH values, for example.

7.5.2 Measuring the ORP

The following types of calibration are possible:

Two-point calibration with medium samples (only ORP %)

Single-point calibration with calibration buffer (only ORP mV)

Data entry of an offset (only ORP mV)

Temperature adjustment via reference value

7.6 Two-point calibration

7.6.1 General information

Two-point calibration is the preferred method for pH sensors, particularly in the following

applications:

Municipal and industrial wastewater

Natural waters and drinking water

Boiler feedwater and condensates

Beverages

Calibrating with buffers with pH 7.0 and 4.0 is recommended for most applications.

Alkaline buffer solutions have the disadvantage that carbon dioxide from the air can alter the pH value

of the buffer on the long term. If calibrating with alkaline buffers it is best to do so in closed systems,such as flow assemblies or retractable assemblies with a rinse chamber, to minimize the effect of air.

7.6.2 With calibration buffers

pH measurement

You use calibration buffers to perform two-point calibration. The quality buffers supplied by

Endress+Hauser are certified and measured in an accredited laboratory. The accreditation (DAR

registration number "DKD-K-52701") confirms that the actual values and the maximum deviations are

correct and traceable.


35/44


Endress+Hauser 35

To calibrate the sensor, remove it from the medium and calibrate it in the laboratory. Since Memosens

sensors save the data, you can always work with "precalibrated" sensors and do not have to stop

monitoring the process to perform a calibration.

Only use calibration buffers once.

Measurement of the ORP in % (2-point cal.)

To obtain useful ORP % values, you must adapt the sensor to your process. This is achieved through

two-point calibration. The two calibration points are characteristic of the most important states your

medium can assume in the process.

You require two different compositions of your medium that represent the characteristic limits of your

process (e.g. 20% and 80% value).

The absolute value in mV is not relevant for the ORP % measurement.

Measuring the ORP in % (data entry)

As an alternative to two-point calibration with medium samples, you can also define the two calibration

points via data entry. To do so, use data pairs in mV and % for the two calibration points that represent

the most important states of your process medium. Ideally, you will have determined the mV values

with a reference measurement.

7.6.3 Entering data for the zero point, slope and temperature (only pH)

You enter the slope, zero point and temperature manually. The function for determining the pH value

is calculated from these values. Thus, the data entry returns the same result as two-point calibration.

You must determine the slope, zero point and temperature alternatively.

7.7 Single-point calibration

7.7.1 Numeric input of a reference value (1-point cal.)

pH measurement

Single-point calibration is particularly useful if the deviation of the pH value from a reference value,

and not the absolute pH value itself, is of interest to the user. Applications for single-point calibration

include:

Process control

Quality assurance

Fluctuations in the process value should not exceed 0.5 pH and the process temperature must remain

relatively constant. As the measuring range is limited as a result, it is possible to set the slope to -59

mV/pH (at 25 C).

Alternatively, you can also use the "sample calibration". Here, you take a sample from the process and

determine the pH value in the laboratory. In the case of the laboratory sample, you must make sure that

the pH value is determined at the process temperature.


36/44


36 Endress+Hauser

Measuring the ORP in mV

You enter the offset directly with this type of calibration. Use the measured value of a reference

measurement, for example, to determine the offset.

7.7.2 Sample calibration (grab sample cal., only pH)

With this type of calibration, you take a sample of the medium and determine its pH value (at process

temperature) in the laboratory. You then use this laboratory value to adjust the sensor. This does not

change the slope of the calibration function.

7.7.3 With ORP buffers (only measurement of the ORP)

With this type of calibration, you work with calibration buffers, e.g. ORP buffers from Endress+Hauser.

For this purpose, you remove the sensor from the medium and calibrate it in the laboratory. Since

Memosens sensors save the data, you can always work with "precalibrated" sensors and do not have to

stop monitoring the process for extended periods to perform a calibration.Only use calibration buffers once.

7.8 Temperature adjustment

The temperature sensor has to be calibrated at regular intervals to ensure the measured value is not

falsified by incorrect temperature measurement.

1. Determine the temperature with a reference measurement and, depending on the result, decide

whether you want to adjust the temperature sensor.

2. If you do, go to the "CAL/Temp. adjustment" menu.The current offset is displayed.

3. Start the adjustment and enter the new offset which you determined beforehand with the

reference measurement.

You can cancel the calibration any time by pressing the "ESC" key. No new data are then used to adjust

the sensor.

7.9 Calibrate

1. Press the soft key for "CAL".

2. Select the type of calibration.

3. Enter the necessary parameters.

(The parameters that have to be configured depend on the type of calibration selected.)

4. Start the calibration.

5. Follow the instructions in the menu.

6. Decide whether to use the calibration data captured, or to abort or repeat the calibration.

After calibration, the transmitter automatically switches back to the measuring mode and your

measuring point is now ready for operation.

If calibration is aborted using ESC, or if the calibration is faulty, the system continues to use theoriginal calibration data.


37/44


Endress+Hauser 37

A calibration error is shown as plain text on the display.

Any offset set is automatically deleted after accepting the calibration.


38/44

Software history CM42-MAA301EAE00

38 Endress+Hauser

8 Software history

Date Version Changes in the software Documentation: edition

04/2012 Package 07

to 10

Extension

Support for pH/ORP combined sensors

Improvement Enhanced user administration Damping can be set for up to 600 s Choice of measured variables modified Modified configuration of diagnostics messages Modified diagnostics messages

BA00381/07/xx/14.12

BA00382/07/xx/14.12

11/2010 Package 06 Extension Support for Korean

Improvement Sensor state display

Sensor check

BA381/07/xx/13.10BA382/07/xx/13.10

11/2009 Package 05 Extension Manual hold also in the "Basic" software version

Improvement Two-point calibration for special buffers corrected Improved table entry

BA381/07/xx/10.03.01BA382/07/xx/10.03.01

10/2008 10.05.00 Extension User administration upgraded Monitoring functions DAT functionalities: Upgrade, update, saving user settings by DAT Redesign of measuring menus

BA381/07/xx/08.08.01BA382/07/xx/08.08.01

02/2008 10.04.05 Improvement 3.6 mA functionality

BA381/07/xx/08.02.01BA382/07/xx/08.02.01

05/2007 10.04.05 Extension Memobase functions

BA381/07/xx/07.05.01BA382/07/xx/07.05.01

06/2006 10.04.00 Extension Advanced functionality:

Medium compensation pH Memosens limit contactor

ORP %

BA381/07/xx/06.10.01BA382/07/xx/06.10.01

04/2006 10.03.00 Extension Advanced functionality:

Pfaudler electrodes Predictive maintenance: PCS, SCC, calibration timer

Software update via DAT modules Date and time format selectable Language extension Diagnosis table, advanced diagnosis codes

BA381/07/xx/06.05.01BA382/07/xx/06.05.01

09/2005 10.02.00 Extension PROFIBUS Profile 3.0 Upload / Download mode Extension of the Memosens data

BA381/07/xx/05.11.01BA382/07/xx/05.11.01


39/44

CM42-MAA301EAE00 Software history

Endress+Hauser 39

07/2005 10.01.00 Improvement Correction of the Memosens functionality Extended error codes Additional types of calibration

Improvement of the update behavior

BA381/07/xx/05.08.01BA382/07/xx/05.08.01

06/2005 10.00.00 Original software BA381/07/xx/05.05.24BA382/07/xx/05.05.24

Date Version Changes in the software Documentation: edition


40/44

Technical data CM42-MAA301EAE00

40 Endress+Hauser

9 Technical data

9.1 Input

9.1.1 Measured variables

--> Documentation of the connected sensor

9.1.2 Measuring range


9.1.3 Cable specification

9.2 Output

9.2.1 Output signal

FOUNDATION Fieldbus

9.2.2 Signal on alarm

Digital via fieldbus

9.3 Electrical connection

9.3.1 Supply voltage and signal voltage

9.3.2 Cable cross-section

Max. cable cross-section: 2.5 mm2 (i14 AWG), GND 4 mm2 (i12 AWG)

9.4 Performance characteristics

9.4.1 Measured value resolution


9.4.2 Measured error--> Documentation of the connected sensor

CYK10 with Memosens Max. cable length 100 m (330 ft)

FOUNDATION Fieldbus: 9 to 32 V DC

Bus current consumption: 22 mA


41/44

CM42-MAA301EAE00 Technical data

Endress+Hauser 41

9.4.3 Repeatability


9.5 Environment

9.5.1 Ambient temperature range

30 to 70 C (20 to 160 F)

9.5.2 Storage temperature

40 to 80 C (40 to 175 F)

9.5.3 Electromagnetic compatibility

Interference emission and interference immunity to EN 61326-1: 2004, Category B (residential envi-

ronments)

9.5.4 Degree of protection

IP66 / IP 67 / NEMA 4X

9.5.5 Relative humidity

10 to 95%, not condensing

9.5.6 Pollution degree

The product is suitable for pollution degree 3.

9.6 Mechanical construction

9.6.1 Weight

1.5 kg (3.3 lbs)

9.6.2 Material

Housing

Housing seals

Module housing

Soft keys,

Cable mounting rail

Display panel

PC-FR (polycarbonate, flame-retardant)

Foamed silicone, EPDM

PC (polycarbonate)

TPE

Stainless steel 1.4301 (AISI 304)

PC-FR (polycarbonate, flame-retardant)


42/44

CM42-MAA301EAE00

42

Index

AAdjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Analog Input Block . . . . . . . . . . . . . . . . . . . . . . . 29

Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

BBus configuration . . . . . . . . . . . . . . . . . . . . . . . . 28

Bus configuration (hardware) . . . . . . . . . . . . . . . 26

CCable cross-section . . . . . . . . . . . . . . . . . . . . . . . 40

Cable grounding . . . . . . . . . . . . . . . . . . . . . . . . . 18

Cable specification . . . . . . . . . . . . . . . . . . . . . . . 40Cable terminals. . . . . . . . . . . . . . . . . . . . . . . . . . 19

CAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Calibrate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Calibration

Calibration intervals . . . . . . . . . . . . . . . . . . . . 33

Numeric input . . . . . . . . . . . . . . . . . . . . . . . . 35

Sample calibration . . . . . . . . . . . . . . . . . . . . . 36

Single-point calibration . . . . . . . . . . . . . . . . . . 35

Two-point calibration . . . . . . . . . . . . . . . . . . . 34

Types of calibration. . . . . . . . . . . . . . . . . . . . . 34Check

Electrical connection. . . . . . . . . . . . . . . . . . . . 23

Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Post-connection check . . . . . . . . . . . . . . . . . . 23

Post-installation . . . . . . . . . . . . . . . . . . . . . . . 16

Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . 24

Commissioning with bus communication . . . . . . 27

Communication . . . . . . . . . . . . . . . . . . . . . . . . . 27

Connecting ground. . . . . . . . . . . . . . . . . . . . . . . 18

Connection data . . . . . . . . . . . . . . . . . . . . . . . . . 40

DDDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Degree of protection . . . . . . . . . . . . . . . . . . . . . . 41

Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Device configuration. . . . . . . . . . . . . . . . . . . . . . 28

Device description . . . . . . . . . . . . . . . . . . . . . . . 10

Device description files . . . . . . . . . . . . . . . . . . . . 28

Device designation . . . . . . . . . . . . . . . . . . . . . . . . 7

Device identification . . . . . . . . . . . . . . . . . . . . . . 27

DIL switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Display

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Status display. . . . . . . . . . . . . . . . . . . . . . . . . 25

EElectrical connection . . . . . . . . . . . . . . . . . . 23, 40

Cable cross-section . . . . . . . . . . . . . . . . . . . . 40

Power supply. . . . . . . . . . . . . . . . . . . . . . . . . 19

Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Signal output. . . . . . . . . . . . . . . . . . . . . . 19, 40

Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . 40

Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Electrical technician. . . . . . . . . . . . . . . . . . . . . . 17Electromagnetic compatibility . . . . . . . . . . . . . . 41

Environment

Ambient temperature range . . . . . . . . . . . . . . 41

Degree of protection . . . . . . . . . . . . . . . . . . . 41

Electromagnetic compatibility . . . . . . . . . . . . 41

Pollution degree . . . . . . . . . . . . . . . . . . . . . . 41

Relative humidity . . . . . . . . . . . . . . . . . . . . . 41

Storage temperature . . . . . . . . . . . . . . . . . . . 41

FFieldbus

Analog Input Block . . . . . . . . . . . . . . . . . . . . 29

Resource Block . . . . . . . . . . . . . . . . . . . . . . . 29

Transducer Block. . . . . . . . . . . . . . . . . . . . . . 29

Function group

CAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

GGrounding concept

Capacitive connection to ground . . . . . . . . . . 20

Hard grounding . . . . . . . . . . . . . . . . . . . . . . . 19

HHousing

Closed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Open. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Housing grounding . . . . . . . . . . . . . . . . . . . . . . 18

Housing opening . . . . . . . . . . . . . . . . . . . . . . . . 17

IIdentification

Nameplate. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/


43/44

CM42-MAA301EAE00

Endress+Hauser

Serial number. . . . . . . . . . . . . . . . . . . . . . . . . . 7

Input

Cable specification . . . . . . . . . . . . . . . . . . . . . 40

Measured variables. . . . . . . . . . . . . . . . . . . . . 40

Measuring range. . . . . . . . . . . . . . . . . . . . . . . 40

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation instructions

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Panel mounting . . . . . . . . . . . . . . . . . . . . . . . 16

Wall or field mounting . . . . . . . . . . . . . . . . . . 14

Interpreting the order code . . . . . . . . . . . . . . . . . . 8

MMaterial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Maximum measured error . . . . . . . . . . . . . . . . . 40

Measured value resolution . . . . . . . . . . . . . . . . . 40Measured variables. . . . . . . . . . . . . . . . . . . . . . . 40

Measuring range. . . . . . . . . . . . . . . . . . . . . . . . . 40

Mechanical construction

Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Mounting plate. . . . . . . . . . . . . . . . . . . . . . . . . . 13

NNameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Nernst equation . . . . . . . . . . . . . . . . . . . . . . . . . 32

Numeric input . . . . . . . . . . . . . . . . . . . . . . . . . . 35

OOnline Configurator . . . . . . . . . . . . . . . . . . . . . . . 8

Opening the housing . . . . . . . . . . . . . . . . . . . . . 17

Operation concept . . . . . . . . . . . . . . . . . . . . . . . 26

Ordering information

Documentation . . . . . . . . . . . . . . . . . . . . . . . . 8

Output

Output signal . . . . . . . . . . . . . . . . . . . . . . . . . 40

Signal on alarm. . . . . . . . . . . . . . . . . . . . . . . . 40

PPerformance characteristics

Maximum measured error . . . . . . . . . . . . . . . 40

Measured value resolution . . . . . . . . . . . . . . . 40

Repeatability. . . . . . . . . . . . . . . . . . . . . . . . . . 41

PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Pollution degree . . . . . . . . . . . . . . . . . . . . . . . . . 41

Post-installation

Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

QQuick Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

R

Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . 41Reordering documentation . . . . . . . . . . . . . . . . . . 8

Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Resource Block . . . . . . . . . . . . . . . . . . . . . . . . . . 29

SSample calibration. . . . . . . . . . . . . . . . . . . . . . . . 36

Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . 8

Sensor

Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Serial number . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Signal output. . . . . . . . . . . . . . . . . . . . . . . . . 19, 40Single-point calibration . . . . . . . . . . . . . . . . . . . . 35

Slope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Software history . . . . . . . . . . . . . . . . . . . . . . . . . 38

Status display . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Storage temperature . . . . . . . . . . . . . . . . . . . . . . 41

Supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . 40

System setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

TTechnical data. . . . . . . . . . . . . . . . . . . . . . . . . . . 40Environment. . . . . . . . . . . . . . . . . . . . . . . . . . 41

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Mechanical construction . . . . . . . . . . . . . . . . . 41

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Performance characteristics . . . . . . . . . . . . . . . 40

Transducer Block . . . . . . . . . . . . . . . . . . . . . . . . 29

Two-point calibration . . . . . . . . . . . . . . . . . . . . . 34

UUse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

WWeight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

ZZero point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/http://cm42-maa301eae00%2171162304%21e%21120419.pdf/


44/44

CM42 pH ORP Operating Instruction

Documents

Transcript of CM42 pH ORP Operating Instruction