µP transmitter / controller for pH value B 20 - Jumo · 2018-10-12 · µP transmitter /...

Type 20.2530

µP transmitter / controller forpH value

B 20.2530Operating Instructions

10.99 / 00371252

All the necessary settings and, where appropriate, alterations inside the unit are describedin this operating manual. If any problems should arise during start-up, do no carry out anyunauthorized manipulations on the unit. This endangers your rights under the warranty!Please contact the nearest subsidiary or the main factory.

When returning chassis, modules or components, the rules of EN 100 015 “Protection ofelectrostatically sensitive components” must be observed. Use only the appropriate ESDpackaging for transport.

Please note that we cannot be held liable for any damage caused by ESD (electrostatic dis-charges)

Contents

Page

Typographical conventions _______________________________ 3

Application ______________________________________________ 4

Instrument identification __________________________________ 5Delivery package ________________________________________________ 5Type code ______________________________________________________ 6

Instrument description ___________________________________ 7Technical data ___________________________________________________ 7Dimensions ____________________________________________________ 10

Assembly _______________________________________________ 12Location _______________________________________________________ 12

Installation _____________________________________________ 14Electrical connection ____________________________________________ 14Connection diagram _____________________________________________ 16Assembling the BNC connector ___________________________________ 17

Starting up _____________________________________________ 18Self-test _______________________________________________________ 18

Operation ______________________________________________ 19Basics _________________________________________________________ 19Operation principle ______________________________________________ 20General ________________________________________________________ 22Programming ___________________________________________________ 23

Controller ______________________________________________ 24Configuring ____________________________________________________ 24Optimising _____________________________________________________ 26

Calibration _____________________________________________ 27Preparation ____________________________________________________ 27Single-point calibration __________________________________________ 29Dual-point calibration ____________________________________________ 30

Operating level _________________________________________ 31Settings _______________________________________________________ 31

Parameter level _________________________________________ 32Settings _______________________________________________________ 32

Contents

Page

Configuration level ______________________________________ 34General ________________________________________________________ 34Analogue inputs – C111 _________________________________________ 35Logic inputs...– C112 ____________________________________________ 36Serial interface...– C113 __________________________________________ 37Controller options – C211 ________________________________________ 38Controller outputs – C212 ________________________________________ 39Other outputs – C213 ____________________________________________ 40SoL - SoH - OFFS - nuLL ________________________________________ 41SLoP __________________________________________________________ 42

Manual operation _______________________________________ 43

Hold / Version __________________________________________ 44

Logic inputs ____________________________________________ 45Functions ______________________________________________________ 45

Interface _______________________________________________ 46MOD/Jbus _____________________________________________________ 46

Glossary ________________________________________________ 47

Warnings – Errors _______________________________________ 53Messages ______________________________________________________ 53

Appendix _______________________________________________ 55Programming the controller ______________________________________ 55

Typographical conventions
Warning signs
Note signs

Danger

This sign is used when there may be danger to personnel if the instructionsare disregarded or not followed accurately.

Warning

This sign is used when there may be damage to equipment or data if theinstructions are disregarded or not followed accurately.

Note

This symbol is used when your attention is drawn to a specific remark.

see abcd Reference

Text in italics refers to further information in other chapters or sections.

abc1 Footnote

Footnotes are notes which refer to certain points in the text. Footnotes con-sist of two parts:

Marking in the text and the footnote text.

The markings are arranged as continuous raised numbers.

The footnote text (in smaller typeface) is placed at the end of a section andstarts with a raised number.

Action

This sign is used when an action to be performed is described.

The individual steps are marked by this asterisk.

Example:

Press key

Key combination

The representation of keys together with a plus sign means that first the key has to be pressed and held down, and then a further key is pressed.

+EXIT PGM

EXIT

3

Application
Type 202530 The compact microprocessor transmitter/controller with 96mm x 48mm bezel
size and plug-in controller chassis measures and controls the pH value or theredox potential (depending on the configuration) in aqueous solutions.

The transmitter has two analogue and two logic inputs. The first analogueinput is suitable for connecting a pH combination electrode or a glass and ref-erence electrode (also antimony), a redox combination electrode or a metaland reference electrode. The second analogue input can be used to connectPt100 or Pt1000 resistance thermometers.The instrument features two 4-digit 7-segment displays for indicating the pHor redox-potential process value (red) and the temperature (green). During pro-gramming, the displays provide comments on the inputs.

The two controller relays can be configured as a limit controller and/or pulseduration or pulse frequency controller with P, PI, PD or PID structure. A maxi-mum of two relay make contacts, one logic output, one analogue processvalue output and one serial interface is available. The instrument can be sup-plied with an additional relay changeover contact instead of the analogueprocess value output.An RS422 / RS485 interface for integration into a data network is available asan option. The MOD/Jbus protocol is used.

Operating Instructions B 20.2530

These Operating Instructions provide comprehensive information on the instal-lation, electrical connection, commissioning, operation, parameter setting andconfiguration of the Type 202530 µP transmitter/controller for pH value.

The Operating Instructions B 20.2530 (Part No. 00000000) apply only to thefunctions of the microprocessor transmitter/controller configured as a pHtransmitter/ controller.

If the microprocessor transmitter/controller is configured as a redoxtransmitter/controller, then the Operating Instructions B 20.2535 (Part No.00370400) must be used.

All necessary settings are described in these Operating Instructions. If anyproblems should occur during start-up, do not carry out any unauthorisedmanipulations on the unit, as this could endanger your rights under the instru-ment warranty. Please contact your supplier.

4

Delivery package
Instrument identification Check forcompleteness
You should have received at least the following:

- microprocessor transmitter/controller for pH value or redox potential

- 2 mounting brackets

- 1 BNC connector

- seal (housing/panel)

- Operating Instructions B 20.2530 and B 20.2535

Label The label is glued to the housing.

Fig. 1 Label

(1) Type code (for explanation, see next page)

The type designation contains all factory settings, such as the controller func-tion, the measurement inputs and extra codes. The extra codes are listed insequence and separated by a comma.

Made in Germany

Typ

VARTN F–Nr

202530/00-888-23-00/000pH: -1,00...14,00 / Redox: -1999...1999 mV

K1 / K2: Relais 3A; AC 250V; ohm. LastK4: Binärausgang DC 0 / 5V

AC 48 - 63 Hz,110...240 V +10/-15%, 8 VA

20/00000000 000000000009848 0000

Pt100 / Pt1000: -50,0...250,0°C

(1)

The supply voltage must correspond to the voltage given on the label.

5

Instrument identification

Type code

Typedesignation

1 Generally, the following configurations can be freely selected by the user on all instru-ments Type 202530: – Controller off– Limit controller– Pulse duration controller with P, PI, PD, PID control– Pulse frequency controller with P, PI, PD, PID controlThe variations listed in the type designation are only factory default settings.

2 Extra codes can be combined – listed in sequences and separated by a comma.3 Output “310” not available in combination with output “888”!

202530/ .. - ... - .. - .. / ... , ...

Basic type202530

Imicroprocessor transmitter/controller for pH value or redoxpotential

l Basic type additionsl 00 controller off1

I 10 limit controller1 (output 1/2)I 21 pulse duration output with P controller structure1 (output 1/2)I 31 pulse frequency output with P controller structure1

(output 1/2)l l Outputsl l 000 no outputl l 310 relay, changeover contact (output 3)3

l l 888 process value output, freely configurable (output 3)3

l l l Supplyl l l 22 20 — 53 V AC/DC ±0% 48 — 63/0 Hzl l l 23 110 — 240 V AC +10%/-15% 48 — 63 Hzl l l l Interfacel l l l 00 no serial interface lI

lI

lI

lI

54 RS422/485 serial interface(output 5)

l l l l l Extra codes2 l l l l l 000 no extra codeslII

lII

lII

lII

lII

015 logic output 0/12 V DC, instead of standard 0/5 V DC (output 4)

I I I I I I202530 / 21 - 888 - 22 - 00 / 000

6

Technical data
Instrument description Analogueinput 1
Input impedance ≥ 1012 Ω

Insulation resistance of the reference system connection to earth greater than107 Ω to DIN 19 265

For all conventional pH electrodes, pH antimony electrodes, metal electrodes,reference electrodes or combination electrodes.

Analogueinput 2

Pt100 or Pt1000 resistance thermometer in 2-wire or 3-wire circuit50 to +250°Cmeasurement display in °C or °F

Leadcompensation analogueinput 2

The lead resistance can be compensated in the software by process valuecorrection. This is not required when connecting a resistance thermometer in3-wire circuit.Alternatively, when connecting a resistance thermometer in 2-wire circuit, leadcompensation can be provided by using an external lead compensation resis-tor.

Logic input 1 The following functions can be allocated as selected:

Key inhibit, setpoint switching, alarm stop, hold, freeze measurement, rangeexpansion (x 10), logic input 1 no function.

Logic input 2 as logic input 1

Measurementand controlrange

-1.00 — 14.00 pH freely selectable

Deviation fromcharacteristic

≤ 0.25% of range

Ambienttemperatureerror

≤ 0.15% per 10˚C

Temperatureindication

-50 to +250°C (optionally °F)

Deviation fromcharacteristic

≤ 0.25% of range

7

Instrument description Technical data

Outputs 5 outputs are available:

1.) Relay, output 1 / 2 (standard)

Make contact (n. o., can also be configured as n. c.)Contact rating: 3A, 250V AC, with resistive loadContact life: more than 5x105 operations at rated loadStatus indicators: relay K1 => LED K1; relay K2 => LED K2

2.) Logic output,output 4(standard)

0/5V (standard) Rload ≥ 250Ω0/12V (option) Rload ≥ 650Ω Status indicator: LED K4

3.) Processvalue output, output 3(option)

0(2) — 10V Rload ≥ 500Ω0(4) — 20mA Rload ≤ 500Ωisolated from the inputs:∆U ≤ 30V AC∆U ≤ 50V DC

4.) Relay, output 3(option)

(only on instruments without process value output)

Changeover contactContact rating: 3A, 250V AC, with resistive loadContact life: more than 5x105 operations at rated loadStatus indicator: LED K3

5.) RS422/RS485interface;output 5(option)

electrically isolated; Baud rate: 4800 / 9600bps; Protocol: MOD/Jbus

General controller data

A/D converter resolution better than 15 bit

Controller type Limit controller and / or pulse duration or pulse frequency controller, freelyconfigurable and selectable

Control action P, PI, PID or PD freely configurable and selectable

Sampling time 210msec

Measurementcircuitmonitoring

Input 1: out-of-rangeInput 2: out-of-range, probe short-circuit, probe break

The outputs move to a defined (configurable) state.

Data backup EEPROM

Supply 110 — 240 V AC +10%/-15% 48 — 63 Hz or 20 — 53 V AC/DC ±0% 48 — 63/0 Hz

Powerconsumption

approx. 8VA

8

Instrument description Technical data

Electricalconnection

via gold-plated faston connectors to DIN 46 244/A; 4.8mm x 0.8mm

pH combination or glass electrode, or metal combination or metal electrodevia BNC connector

Permittedambienttemperature

0 to +50 ˚C

Permittedlimit ambienttemperature

-10 to +55 ˚C

Permittedstoragetemperature

-40 to +70 ˚C

Climaticconditions

rel. humidity not more than 75%, no condensation

Protection to EN 60 529, front IP65 / rear IP20

Electricalsafety

to EN 61 010, clearance and creepage distances for- overvoltage category II- pollution degree 2

Electro-magneticcompatibility

to NAMUR recommendation NE21; EN 50 081 Part 1; EN 50 082 Part 2

Housing for flush-panel mounting in conductive plastic to DIN 43 700, base materialABS, with plug-in controller chassis

Operatingposition

unrestricted

Weight approx. 320g

9

Instrument description Dimensions

Type 202530/...

Optional accessories

Additional housing , no door at front, Protection IP65, Type 2FGE-125-2/125

Limited external temperature range!

The ambient temperature of the surface-mounting housing must not exceed45°C.

10

Instrument description Dimensions

Additional housing with door at front, Protection IP65, Type 2FGE-150-2/185

Limited external temperature range!

The ambient temperature of the surface-mounting housing must not exceed45°C.

11

Location
Assembly Conditions The location should be as free from vibration as possible. Electromagnetic
fields, for instance from motors, transformers, etc., should be avoided. Theambient temperature at the location can be between 0 — 50 ˚C, at a relativehumidity of not more than 75 %.

Panel cut-outforedge-to-edge mounting

Fig. 2 Panel cut-out

Fitting intoposition

Fig. 3 Fitting into position

Place the seal supplied (1) onto the instrument body.

Insert the controller from the front into the panel cut-out.

From the rear of the panel, slide the mounting brackets into the guides at the sides of the housing. The flat sides of the brackets must be against the housing.

Place the mounting brackets against the rear of the panel and tighten them evenly with a screwdriver.

(1)

12

Assembly Location

Cleaning thefront panel

The front panel can be cleaned with normal washing, rinsing and cleaningagents.

It has a limited resistance to organic solvents (e. g. methylated spirits, whitespirit, P1, Xylol etc.).

Do not use high-pressure cleaning equipment!

Removing thecontrollerchassis

Fig. 4 Removing the controller

The controller chassis can be taken out of the housing for servicing.

Disconnect the BNC connector on the rear of the instrument!

Press together the ribbed surfaces right and left on the front panel andpull out the controller chassis.

13

Electrical connection
Installation
The choice of cable, the installation and the electrical connection must con-form to the requirements of VDE 0100 “Regulations on the installation of power circuits with nominal voltages below 1000 V”, or the appropriate local regulations.

The electrical connection must only be carried out by properly qualifiedpersonnel.

If contact with live parts is possible, isolate the instrument completely from the supply.

A current limiting resistor interrupts the supply circuit in the event of a short circuit. An additional external fuse of the supply should not be rated below 1 A (slow).The load circuit must be fused for the maximum relay current in order to prevent welding of the output relay contacts in the event of a short-circuit.

The electromagnetic compatibility conforms to the standards and regula-tions listed under Technical data, see “Instrument description / Technical data / Electro- magnetic compatibility”, page 9.

Run input, output and supply lines separately and not parallel to each other.

Sensor and interface lines should be arranged as twisted and screened cables. Do not run them close to current-carrying components or cables. Earth the screen at one end on the instrument to terminal TE.

Earth the instrument at terminal TE to the earth conductor. This line should have at least the same cross-section as the supply lines. Earth lines should be run in a star layout to a common earth point which is connected to the earth conductor of the supply. Do not loop the earth connections, i. e. do not run them from one instrument to another.

Do not connect any additional loads to the supply terminals of the instru-ment.

The instrument is not suitable for installation in hazardous areas.

Apart from faulty installation, there is a possibility of interference or damage to controlled processes due to incorrect settings on the controller (setpoint, data of parameter and configuration levels, internal adjustments). The set-point reached should therefore be monitored for stability. Safety devices independent of the controller, such as overpressure valves and temperature limiters/monitors should always be provided and should be capable of adjustment only by specialist personnel. Please refer to the appropriate safety regulations in this connection.

The measurement inputs of the controller must not exceed a maximum potential of 30 V AC or 50 V DC against TE.

Sensor lines should only be run as unbroken leads (do not run them via modular terminals, etc.).

The electrical connection must only be carried outby properly qualified personnel!

14

Installation Electrical connection

Connectiondiagram

Fig. 5 Rear view with faston / BNC connectors

After the supply voltage has been connected, the microprocessor transmitter/controller will control according to the factory-set parameters (unless theinstrument was ordered with the “controller off”).

Therefore, it is advisable to program the microprocessor transmitter/controllerwith the required parameters before connecting the actuators, see “Opera-tion”, 19 ff.

BNC-Buchse

1817 19

2120

2322

L1(L+) TE

N(L-)

1213

1011

1516

142

1

3

89

6 45

BNC connector

Outputs Terminals Diagram

Relay 1(K1)Status indicatorLED K1

1 23

22

common

n. o. (make)


2 21

20

common

n. o. (make)


or

process value output

4 16

15

14

n. c. (break)

common

n. o. (make)

15

14

–

+

Logic output 1(K4)Status indicatorLED K4

3 19

17

–

+

P NO

23 22

P NO

21 20

PNC NO

1516 14

14 15

+ -

17 19

+ -

15

Installation

Inputs Terminals Diagram

pH combinationelectrode

BNC connector

pH electrode withseparate referencesystem

BNC connector

Reference electrode 8

Resistancethermometerin 3-wire circuit

9

11

10

Resistancethermometerin 2-wire circuit

10

9

11

ϑ

119 10

ϑ

10 9 11

Rlin

e

Rcomp

RS422 serial interface(option)

RxD 5

4

RxD +

RxD –

Receive data

TxD 2

1

TxD +

TxD –

Transmit data

GND 3 GND

RS485 serial interface(option)

+

-

2

1

TxD/RxD +

TxD/RxD –

GND 3 GND

Logic input 1 13

19

Logic input 2 12

19

Supplysee label

AC/

DC

AC:

L1

N

TE

line

neutral

technicalearth

DC:

L +

L –

45 2 31

12 3

13 19

12 19

NL-

L1L+ TE

16

Connection diagram

Installation
Procedure .
Fig. 6 Assembling the BNC connector, step 1

Strip the external insulation from the cable


Push the cable through the screw fitting (1), washer (2), seal (3) andbraid clamp (4).

Spread the braiding over the braid clamp (4).

Cut off any extra braiding.

Remove the black, part-conductive coat.

Remove the inner insulation.


7

(1) (2) (3) (4) (5) (6) (7) (8)

Do not use solder flux!

Solder the contact (7) to the inner conductor (6).

Push the connector body (8) onto the cable, engaging and tightening the screw fitting (1).

Assembling the BNC connector

17

Self-test
Starting up
After“power-on”

the instrument performs a self-test; all displays light up.

OK If the self-test is successful, the instrument will switch over to measurementmode after approx. 10 seconds.

The measured pH value and – if a temperature probe is connected and config-ured – the measured temperature will be displayed; the controller operatesaccording to the factory-set parameters.

In measurement mode, manual operation, hold and calibration can be acti-vated, and the software revision number and the unit (°C / °F) of the tempera-ture input can be displayed.

Error If an error code (e.g. F010) or “Err” is displayed, see “Warnings – Errors /Messages”, page 53 ff.

After the supply voltage has been connected, the microprocessor transmitter/controller will control according to the factory-set parameters. (unless the instrument was ordered with the “controller off”)

Therefore, it is advisable to program the microprocessor transmitter/controllerwith the required parameters before connecting the actuators, see “Opera-tion”, 19 ff.

18

Basics
Operation Displays and keys
1 LED K3 has no function, if the instrument was ordered with process value output (output “888”).

(1) Display: instrument was reconfiguredfrom “redox” to “pH”

(6) PGM key for selection of parameters andconfirmation of inputs

(2) Status indicators (yellow) for the outputs 1 to 41

LED “K1” => relay K1LED “K2” => relay K2LED “K3” => optional relay K3LED “K4” => logic output K4

(7) 4-digit temperature display(LED, green, 8mm high)(Only active when temperaturemeasurement has been configured(C111))

(3) Increment key for altering parametersor manual operation of relay K2

(8) 4-digit process value display(LED, red, 13mm high)

(4) Decrement key for altering parametersand for manual operation of relay K1

(4)+(6)

“CAL”: initiating electrode calibration(single-point or dual-point calibration)

(5) EXIT key to leave the levels (3)+(5)

Initiating manual operation or “hold”.

PGM EXIT

K1mVORP

K2 K3 K4

CAL

(2)(1)

(3)

(4)

(5)

(6)

(7)

(8) pH

°C

19

Operation Operation principle

Operating modes and states

Levels The functions of the dTRANS pH01 are arranged in four levels (see diagram onfollowing page):

- Measurement mode

- Operating level

- Parameter level

- Configuration level

Measurementmode1

(normaloperation)

This level is available for displaying the measurements. Manual operation,hold, and calibration can be activated.

Operatinglevel1

The setpoints, alarm tolerance, alarm delay time and the limit value for thetemperature limit comparator can be entered and displayed at this level.

Parameterlevel1

The controller parameters and other settings are programmed at this level.The display of the individual parameters depends on the controller type.

Configurationlevel1

At this level, the basic functions of the instrument are configured.

1 Inputs are only possible after the correct code word has been entered,see “Operation / Programming / Enabling the levels”, page 23.

Measurement mode(normal operation)

The process value and the temperature are displayed.

Self-test (after power-on)

All displays light up; the temperature display blinks.

Manual operation The process value indication continually switches between displaying the process value and “HAnd”; the temperature is displayed.

“Hold” operation The process value indication continually switches between displaying the process value and “HoLd”; the temperature is displayed.

Operation, parameters,configuration

The temperature display shows the parameters from the various levels;the process value display shows the corresponding values and codes.

Error The temperature display continually switches between the tempera-ture and the error code (e.g. F010), see “Warnings – Errors”, 53.

20

Operation Operation principle

Operationwithin levels

1 A change of level occurs only after stepping through all the parameters of the relevant level.

Measurementmode

Operatinglevel

Parameterlevel

Configurationlevel

ortime-out

ortime-out

ortime-out

< 1 sec

> 2 sec

> 2 sec

> 2 sec

21

Operation General

Enteringparameters

The input and modification of parameters and setpoints is continuous. Therate of change of the value increases with the length of time that the key ispressed.

Increase value with

Decrease value with

Accept the input with – the upper display will “wink” to confirm(the display switches off briefly)

or

cancel with

Entering the configurationcode orcode word

Select digit with (digit blinks).

Alter the code with

Accept the setting with – the upper display will “wink” to confirm(display switches off briefly)

or

cancel with

Level protectionAt the operating level, parameter level and configuration level, changes canonly be made after entering a code word, see “Operation / Programming /Enabling the levels”, page 23. The code word has been input correctly ifthe decimal point on the temperature display begins to blink after selection ofthe parameter that is to be modified.

Within each level, the next parameter is selected by pressing the key.PGM

CancelThe measurement mode can be returned to at any time by pressing the key. Parameters which have been modified but not confirmed with willnot be accepted.

EXIT

PGM

Time-outThe controller will automatically return to measurement mode if no operationis performed for 30 seconds. Modified parameters which have not been con-firmed with will not be accepted.Exception: No time-out will occur during calibration.

PGM

The value is altered only within the permissible range of values.

PGM

EXIT

PGM

EXIT

22

Operation Programming

Procedure Fold out the last page of these operating instructions, see “Appendix / Programming the controller”, page 55 ff.

Enter all parameter values and codes that are to be changed in the table

Enable all affected levels, see below

Program all settings from top to bottom

Inhibit all levels, see below

Enabling thelevels

Initial conditions: the instrument is in the measurement mode.

Press the briefly as many times as are required until “CodE” appears in the lower display.

Set the required code word using the or keys.

Press key (confirmation) – “0000” will be displayed

The code word has been entered correctly if the decimal point blinks in thetemperature display after selection of the parameter that is to be altered.

Af

Depending on the configured controller type, some controller parameterscannot be set and will not be displayed.

After altering the controller type (C211), the controller parameters must bechecked, see “Parameter level / Settings”, page 32 ff.

Function Code word1

Enable operating level, CAL and manual activation of“hold”

0110

Enable operating and parameter levels 0020Enable all levels 0300Activate edit protection xxxx2

PGM

PGM

1 Code word 0020 includes 0110; code word 0300 includes 0020 and 0110.2 The levels concerned remain enabled until the edit protection is reactivated either by

entering an invalid code word (except 0000) or the power supply of the instrument is switched off and then back on again.

23

Controller

Possiblecombinations

The functions of the contacts K1 and K2 can be freely combined:

- Controller off

- Limit controller

- Pulse duration controller

- Pulse frequency controller

The controller functions are determined by the following parameters:

1 see “Configuration level / Controller options – C211”, page 38 orsee “Configuration level / Controller outputs – C212”, page 39.

2 see “Parameter level”, page 32 ff. 3 see “Operating level”, page 31 ff.

For an explanation of the terminology used, see “Glossary”, page 47 ff.

Configuration level1Parameter level2 Operating level3

C211 C212 C212

Controller off – – – – – – – –

Limit controller MIN/MAXcontact

make/breakcontact

Differential HYSPull-in delay OndDrop-out delay Ofd

Setpoint SP(r)

Pulse durationcontroller

MIN /MAXcontact

make/breakcontact

Proportional band PbDerivative time dt Reset time rtMinimum ON time trPulse period CYOutput limit Y1 or Y2

Setpoint SP(r)

Pulse frequencycontroller

MIN/MAXcontact

make/breakcontact

Proportional band PbDerivative time dt Reset time rtMinimum pulseduration trMaximum pulsefrequency FrOutput limit Y1 or Y2

Setpoint SP(r)

24

Configuring

Controller
Example formake/ breakcontact
Configurationnotes

Both outputs (K1 / K2) can be configured as pulse duration or pulse frequencyoutputs (or in combination).

t

Range I Range II Range III

w2

w1

pro

cess

val

ue

Range I Range II Range III

LED Contact LED Contact LED Contact

MINMake contact on 1 off 0 off 0

Break contact on 0 off 1 off 1

MAXMake contact off 0 off 0 on 1

Break contact off 1 off 1 on 0

Switching functionK1 / K2

Setpointsw1 / w2

min / min w1 < w2

min / max w1 < w2

max / max w1 > w2

max / min w1 > w2

Configuring

25

Controller
Optimumadjustment
The optimum adjustment of the controller to the control loop can be monitoredby recording the start-up phase.

The following diagrams (referred to the PID action) indicate where the adjust-ments may be incorrect and how they can be rectified.

It can be seen that a more stable and steady control action can be achievedby increasing both the proportional band Pb and the reset time rt.

A smaller proportional band Pb and / or a shorter reset time rt will result in acontrol action with less damping.

optimum

rt, dt too small rt , dt too large

Pb too largePb too small

26

Optimising

Preparation
Calibration General The electrode parameters of a pH combination electrode are subject to manu-
facturing tolerances and variations depending on usage. To compensate forthese changing electrode parameters, the transmitter offers two calibrationprocedures:

Single-pointcalibration

Single-point calibration makes a fresh determination of the electrode zeropoint only, by using a buffer solution (solution with a known pH value).Problems arising from an erroneous electrode slope will not be recognised.This method should only be adopted in cases where the electrode is not sub-ject to significant chemical and mechanical influences.

Dual-pointcalibration

Dual-point calibration makes a fresh determination of the electrode zeropoint and slope using two buffer solutions.This method should be given preference!

Manual input In addition to the calibration procedures described above, the transmitter alsooffers the facility of manually entering the zero point and slope (as determinedby a laboratory, for example).

Temperature The measurement of the pH value depends on the temperature; the tempera-ture of the measurement solution must therefore be known when calibrating.The temperature can either be measured automatically using a Pt100 orPt1000 temperature probe, or it has to be set manually by the user.

Preparation forcalibration

Before the first calibration the following will have to be defined:

- The type of temperature measurement during calibration, and

- the calibration procedure (single-point or dual-point calibration, andwhether or not the process value output is to be frozen during calibration).

CancelTo return to measurement mode at any time, press .EXIT

If subsequent calibration procedures are to be performed with the same set-tings, the parameters mentioned above must not be reconfigured again.

27

Calibration
Select type oftemperaturemeasurement
The instrument is in measurement mode.

Unlock the configuration level, if required, see “Operation / Programming / Enabling the levels”, page 23. (code word 0300)

Press the key twice for longer than 2 seconds to access the configura-tion level.The lower display shows “C111”.

Set the configuration code using the and keys.

Press the key (confirmation)

Press the key (back to measurement mode)

Calibrating with or without“frozenprocess valueoutput”

When the process value output is “frozen”, the output signal during calibrationwill remain at the value that was produced immediately before the start of cali-bration. This ensures that any PLC connected to the transmitter does not reactin an uncontrolled manner during calibration.

With the process value output frozen, the lower display will indicate “donE”after the last calibration step, while the upper display will show the currentmeasured value. The process value output remains unchanged.

After the electrode has been refitted, the key has to be pressed again.Then the process value output will again be coupled to the display.

Selectcalibrationprocedure

Press the key as often as required until the lower display shows “C211”.

Set the configuration code using the and keys.

Press the key (confirm entry)

Press the key (back to measurement mode)

Type of temperature measurement X X X 0Manual temperature compensation 0Automatic temperature compensation with Pt100 1Automatic temperature compensation with Pt1000 2

PGM

PGM

EXIT

PGM

Factory setting: “Calibrating without frozen process value output”.

Calibration procedure X X 0 XSingle-point calibration, process value output not frozen 0Single-point calibration, process value output frozen 1Dual-point calibration, process value output not frozen 2Dual-point calibration, process value output frozen 3

PGM

PGM

EXIT

28

Preparation

Calibration
Required is - a buffer solution with a pH value which roughly corresponds to the medium
that is to be measured later,

- a thermometer, if manual temperature compensation is required,

- a Pt100 or Pt1000 temperature probe, if automatic temperaturecompensation is needed.

Initialconditions

A pH combination electrode or a glass and a reference electrode are con-nected to the transmitter Type 202530, as well as a Pt100 or Pt 1000 tempera-ture probe, if required, see “Installation / Electrical connection”, page 14 ff.

Select calibration procedure, see “Calibration / Preparation”, page 27 ff.

The operating level is unlocked, see “Operation / Programming / Enablingthe levels”, page 23. (Code word 0110)

The instrument is in measurement mode,see “Operation / Basics / Operating modes and states”, page 20.

Calibration Press the + (Cal) keysThe lower display shows “°C”.If the decimal point flashes, then manual temperature measurement isconfigured:

Immerse the pH electrode and, if applicable, the temperature probe inthe buffer solution.

Adjust the temperature of the buffer solution using the or keys.

If the decimal point does not flash, automatic temperature measurement has been configured.

Wait until the temperature indicated has stabilised.

Press the keyThe lower display shows “Cal0” with the decimal point flashing.

When the pH value display has stabilised, set the displayed value to the value of the reference buffer using the or keys.

Press the key.The instrument stores the new zero point.The instrument is again in measurement mode.

PGM

PGM

PGM

If, on completion of calibration, the instrument shows “Err” in the temperaturedisplay, see “Warnings – Errors / Messages”, page 54.

Single-point calibration

29

Calibration
Required is - a buffer solution, e. g. pH 7,
- a buffer solution with a pH value that differs from the first buffer solution by at least 2 pH, for instance pH 10.Both buffer solutions must have the same temperature;

- a thermometer, if calibration with manual temperature compensation isperformed, and

- a Pt100 or Pt1000 temperature probe, for calibration with automatic tem-perature compensation.

Initialconditions

A pH combination electrode, or a glass and a reference electrode, are con-nected to the transmitter Type 202530, and, if required, a Pt100 or Pt 1000temperature probe, see “Installation / Electrical connection”, page 14 ff.

Select calibration procedure, see “Calibration / Preparation”, page 27 ff.


The instrument is in measurement mode,see “Operation / Basics / Operating modes and states”, page 20.

Calibrating Press the + (Cal) keys.The lower display shows “°C”.If the decimal point flashes, then manual temperature measurement isconfigured.

Immerse the pH electrode and, if applicable, the Pt100 or Pt1000temperature probe in the first buffer solution (pH 7).

Adjust the temperature of the buffer solution using the or keys.

If the decimal point does not flash, then automatic temperaturemeasurement has been configured.

Wait until the temperature indicated has stabilised.

Press the key.The lower display shows “Cal0” with the decimal point flashing.

After the display of the pH value has stabilised, set the displayed value to the value of the first reference buffer solution using the or keys.

Press the key.The lower display shows “Cal1” with the decimal point flashing.

Remove the pH electrode and, if applicable, the temperature probe from the first buffer solution and rinse it with water.

Immerse the pH electrode and, if applicable, the Pt100 or Pt1000temperature probe in the second buffer solution.

After the pH value display has stabilised, set the displayed value to the value of the second reference buffer using the or keys.

Press the key.The instrument stores the new zero point, as well as the new slope. The instrument is again in measurement mode.

PGM

PGM

PGM

PGM

30

Dual-point calibration

Settings
Operating level Preconditions To see how to access the operating level, or how to leave this level,
see “Operation / Operation principle”, page 20 ff.

The operating level must be unlocked, see “Operation / Programming /Enabling the levels”, page 23. (Code word 0110)

Depending on the controller function that was configured, not all of the follow-ing parameters will be required and will also not be displayed by the dTRANSpH 01.

For an explanation of the terminology used, see “Glossary”, 47 ff.

How to configure controllers, see “Controller / Configuring”, page 24 ff.

Designation Display Value range Factorysetting

displayed when ...is configured

seeconfigura-tion code

Setpoint 1 SP(r)1

-1.00 to 14,00 pH

-1.00 K1C211

Setpoint 2 SP(r)2 14.00 K2Setpoint 3 SP(r)3 -1.00

Setpoint switching C112Setpoint 4 SP(r)4 14.00Code word CodE 4-digit 0000Temperature for compensation(manually-set or automatic, depending on configuration)

InP2 (°C) 25 C111

Alarm tolerance AL1 0.00 to 99.99 pH 0 Controller alarmmessages

C211 or C213Alarm delay AL2 0 to 9999 sec 300

Alarmtemperature

AL3 -50 to +250 °C 250 Limit comparators for temperature

C211 or 213

31

Parameter level

Preconditions How to access the parameter level, or how to leave this level,see “Operation / Operation principle”, page 20 ff.

The parameter level must be unlocked, see “Operation / Programming /Enabling the levels”, page 23. (Code word 0020)

If many instrument parameters have to be reconfigured,see “Appendix / Programming the controller”, page 55 ff.

Depending on the controller function that was configured, not all of the follow-ing parameters will be required and will also not be displayed by the dTRANSpH 01.



Parameter Display Valuerange

Factorysetting

is displayed when ... is configured


Proportional band1 Pb10.01 to99.99 pH

7.00

Relay 1, pulsefrequency/duration

C211

Proportional band 2 Pb2 Relay 2, pulsefrequency/duration

Derivative time 1 dt1

0 to9999 sec

0

Relay 1, pulse frequency/duration

Derivative time 2 dt2 Relay 2, pulsefrequency/duration

Reset time 1 rt1 Relay 1, pulsefrequency/duration

Reset time 2 rt2 Relay 2, pulsefrequency/duration

Minimum ON time 1 (for limit controller or pulse durationcontroller)orminimum pulseduration 1 (for pulsefrequency controller)

tr1

0.2 to999.9 sec

0.2

Relay 1, pulse duration

pulse frequency

Minimum ON time 2 (for pulse duration controller)orminimum pulseduration 2 (for pulse frequency controller)

tr2 Relay 2, pulse duration

pulse frequency

32

Settings

Parameter level

Differential 1 HYS1 0.00 to99.99 pH

0.30Relay 1, limit value

C211

Differential 2 HYS2 Relay 2, limit valuePull-in delay 1 Ond1

0.00 to999.9 sec

1.0Relay 1, limit value

Pull-in delay 2 Ond2 Relay 2, limit valueDrop-out delay 1 Ofd1

0.2 secRelay 1, limit value

Drop-out delay 2 Ofd2 Relay 2, limit valueMaximum pulsefrequency 1

Fr10 to 150 pulses/min

100

Relay 1, pulse frequency

Maximum pulsefrequency 2

Fr2 Relay 2, pulse frequency

Pulse period 1 CY1 1.0 to999.9 sec

20.0Relay 1, pulse duration

Pulse period 2 CY2 Relay 2, pulse durationOutput limitrelay 1

Y10 to100%

100

Relay 1, pulsefrequency/duration

Output limitrelay 2

Y2 Relay 2, pulsefrequency/duration

Filter constant dF 0 to100 sec

0.6

Parameter Display Valuerange

Factorysetting

is displayed when ... is configured


Settings

33

General
Configuration level At the configuration level, the basic functions of the microprocessortransmitter/controller can be displayed and / or altered.
Preconditions How to access the configuration level, or how to leave it,see “Operation / Operation principle”, page 20 ff.

The configuration level is unlocked, see “Operation / Programming / Ena-bling the levels”, page 23. (Code word 0300)

If many instrument parameters have to be reconfigured,see “Appendix / Programming the controller”, page 55 ff.



34

Configuration level

C111 1 0 0 0

Measurement variable I I I I

mV 1 0 I I I

pH 1 I I I

I I I

not used I I I

0 I I

I I

not used I I

0 I

I

Type of temperature measurement I

Manual temperature compensation 0

Automatic temperature compensation with Pt100 1

Automatic temperature compensation with Pt1000 2

The factory-set codes are shown in the position boxes.

1 After reconfiguring the measurement variable from “pH” = pH value to “mV” = redoxpotential, the Operating Instructions B 20.2535 (Part No. 00370400) must be used.

Analogue inputs – C111

35

Configuration level

1 Description of functions, see “Logic inputs / Functions”, page 45.

C112 0 0 0 0

Function of the logic input 11 I I I I

no function 0 I I I

Key inhibit 1 I I I

Alarm stop 2 I I I

Hold 3 I I I

Freeze measurement 4 I I I

Setpoint switching 5 I I I

Range expansion (x10) 6 I I I

I I I

Function of the logic input 21 I I I

no function 0 I I

Key inhibit 1 I I

Alarm stop 2 I I

Hold 3 I I

Freeze measurement 4 I I

Setpoint switching 5 I I

Range expansion (x10) 6 I I

I I

Electrode type I I

Standard electrode 0 I

Special electrode (antimony) 1 I

I

I-action of the controller I

I-component of the controller is active between the two setpoints 0

I-component of the controller is not active between the two setpoints 1

The factory-set codes are shown in position boxes.

36

Logic inputs...– C112

Configuration level

1 With the output signals 0 — 10V and 0 — 20mA, -4% approx. is output on underrange.

C113 0 1 0 0

Instrument address I I I I

Address 0 0 0 I I

Address 1 0 1 I I

... I I

Address 99 9 9 I I

I I

Serial interface I I

MODbus / Jbus, 9600 bps, no parity 0 I

MODbus / Jbus, 9600 bps, odd parity 1 I

MODbus / Jbus, 9600 bps, even parity 2 I

MODbus / Jbus, 4800 bps, no parity 3 I

MODbus / Jbus, 4800 bps, odd parity 4 I

MODbus / Jbus, 4800 bps, even parity 5 I

I

Response of the process value output to out-of-rangeand off the scale

I

Underrange Overrange I

0% 100% 0

0% 110% 1

approx. -10% 1 100% 2

approx. -10% 1 110% 3


Serial interface...– C113

37

Configuration level

1 Description of functions, see “Calibration / Preparation”, page 27. 2 Description of functions, see “Manual operation”, page 43.

C211 2 2 2 0

Function K1 I I I I

off 0 I I I

Limit controller 1 I I I

Pulse duration controller 2 I I I

Pulse frequency controller 3 I I I

I I I

Function K2 I I I

off 0 I I

Limit controller 1 I I

Pulse duration controller 2 I I

Pulse frequency controller 3 I I

MAX. temperature limit comparator 4 I I

MIN. temperature limit comparator 5 I I

I I

Calibration procedure1 I I

Single-point calibration, process value output not frozen 0 I

Single-point calibration, process value output frozen 1 I

Dual-point calibration, process value output not frozen 2 I

Dual-point calibration, process value output frozen 3 I

I

Manual operation2 I

Manual operation off 0

Manual operation enabled, switched 1

Manual operation enabled, keyed 2

Simulation of process value output 3


38

Controller options – C211

Configuration level

C212 0 0 1 0

Signal K1 on overrange / hold I I I I

Output 0% 0 I I I

Output 100% 1 I I I

Output 50% (not with limit controllers) 2 I I I

Output accepted 3 I I I

I I I

Signal K2 on overrange/hold I I I

Output 0% 0 I I

Output 100% 1 I I

Output 50% (not with limit controllers) 2 I I

Output accepted 3 I I

I I

MIN / MAX contact on K1 / K2 I I

K1 K2 I

MIN MIN 0 I

MIN MAX 1 I

MAX MIN 2 I

MAX MAX 3 I

I

Make / break contact I

K1 K2

make make 0

make break 1

break make 2

break break 3


Controller outputs – C212

39

Configuration level

1 Only if the dTRANS pH 01 was ordered with output “310” = relay or “888” = analogueprocess-value output, see “Instrument identification / Type code”, page 6.

2 A relay contact (K1 /K2) that is monitored triggers an alarm when the alarm tolerance + alarm delay time have been exceeded, see “Glossary”, 47 ff.

C213 6 0 3 0

Function for output 3 (Relay 3 or analogue process-value output)1 I I I I

no function 0 I I I

Hold (relay only) 1 I I I

Alarm pulse contact (relay only) 2 I I I

Alarm steady contact (relay only) 3 I I I

MAX. temperature limit comparator (relay only) 4 I I I

MIN. temperature limit comparator (relay only) 5 I I I

Process value: variable 1 (analogue process-value output only) 6 I I I

Process value: temperature (analogue process-value output only) 7 I I I

I I I

Output signal for output 3 (analogue process-value output only) I I I

0 — 20 mA 0 I I

4 — mA 1 I I

0 — 10 V 2 I I

2 — 10 V 3 I I

20 — 0 mA 4 I I

20 — 4 mA 5 I I

10 — 0 V 6 I I

10 — 2 V 7 I I

I I

Function for output 4 (logic output) I I

no function 0 I

Hold 1 I

Alarm pulse contact 2 I

Alarm steady contact 3 I

MAX. temperature limit comparator 4 I

MIN. temperature limit comparator 5 I

I

Alarm monitoring of relays K1 and K22 I

K1 K2

monitored monitored 0

monitored not monitored 1

not monitored monitored 2

not monitored not monitored 3


40

Other outputs – C213

Configuration lev
SoL Standard signal scaling of the analogue process value output.
Start value of the value range for standard signals of the process valueoutput.

Value range: -1.00 — 14.00 pHfactory-set: -1.00 pH

Example: 0 — 20 mA is to be represented by 2.00 — 9.00 pH.

SoL = 2.00

SoH Standard signal scaling of the analogue process value output.

End value of the value range for standard signals of the process value output.

Value range: -1.00 — 14.00 pHfactory-set: 14.00 pH

Example: 0 — 20 mA is to be represented by 2.00 — 9.00 pH

SoH = 9.00

OFFS Process value correction for temperature

The measured value of the temperature input can be corrected upwards ordownwards through process value correction.

Value range: -199.9 — 199.9°C or °Ffactory-set: 0°C

Example:

nuLL Zero point correction

The zero point of the ideal pH electrode is at pH 7. Because of manufacturingvariations, and also because electrode parameters change during operation,the true electrode zero point is ≠ pH 7. The deviation from the ideal zero pointcan be corrected with “nuLL”.

Value range: 5.00 — 9.00 pH when standard electrode has been configured,see “Configuration level / Logic inputs...– C112”, page 36.

Value range: -2.00 — 16.00 pH when special electrode (antimony) has beenconfigured,see “Configuration level / Logic inputs...– C112”, page 36.

factory-set: 7.00 pH

Measuredvalue

Offset Displayvalue

34.7°C +0.3°C 35.0°C

35.3°C -0.3°C 35.0°C

el SoL - SoH - OFFS - nuLL

41

Configuration level
SLoP Correction of slope
The slope of the output signal for a pH electrode changes during operation.The electrode slope can be determined automatically during dual-point cali-bration (see chapter “Calibration”), or it can be entered manually.

Value range: 75.0 — 110.0% when standard electrode has been configured,see “Configuration level / Logic inputs...– C112”, page 36.

Value range: 10.0 — 110.0% when special electrode (antimony) has beenconfigured,see “Configuration level / Logic inputs...– C112”, page 36.

factory-set: 100.0%

42

SLoP

Manual operation
Description In manual mode, relays K1 and K2 can be manually operated, independently
of the controller.

Initialcondition

The instrument is in the measurement mode.

Activatingmanualoperation

Switch to manual mode with + (The upper LED display continually switches between “Hand” and thecurrent measurement).

Activate or deactivate relay K2 with , and relay K1 with

Press to return to the measurement mode.

The upper LED display continually switches between “HAnd” and the currentmeasurement.

Simulation of the process value output

If process value simulation has been configured, see “Configuration level /Controller options – C211”, page 38, the upper display alternately shows“HAnd” and 50.0 (%)

Use the key to reduce the signal of the process value output in 10%steps,

and the key to increase the signal of the process value output in 10%steps.

Example: Output signal 0 — 20 mA, required simulated output signal 8 mA => setting 40 (%)

Manual operation is only possible if it has been configured first,see “Configuration level / Controller options – C211”, page 38

If relay K2 has been configured as limit comparator for temperature, then thisrelay cannot be operated manually.

In manual operation, output limiting is effective (except for limit controllers).

EXIT

EXIT

+ ≤ 1 s

EXIT

EXIT

43

Hold / Version
Description When “Hold” is activated, the relays K1 and K2 take the state defined in the
configuration code “Controller outputs – C212”,see “Configuration level / Controller outputs – C212”, page 39.

Initialconditions


The instrument is in the measurement mode.

Activating“Hold” (manually)

Press and hold the + keys for longer than 2 seconds.

The upper LED display continually switches between “HoLd” and the currentmeasurement.

Return to measurement mode by pressing + for more than2 seconds.

Displaying the software version and the temperature unit

Display the software version and the temperature unit with + .

The software version is shown in the upper display.

Possible units (lower display) are ˚C or °F (normally: °C; a change to °F canonly be made in the factory).

EXIT + ≥ 2 s

EXIT + ≥ 2 s

EXIT

EXIT

If relay K2 is configured as limit comparator for temperature, then the “Hold”operation has no effect on this relay.

Relays K1 and K2 are set according to configuration C212.

In “Hold”, output limiting is effective (except for limit controllers).

PGM+

PGM

44

Functions
Logic inputs
Setting the functions of the logic inputs,see “Configuration level / Logic inputs...– C112", page 36.

State of thelogic input

Key inhibitOperation of the transmitter /controller is possible from the keys on the front.

Operation of the transmitter/controller from the keys on the front is not possible.

Alarm stopAlarm messages are output to the configured output.

The alarm contact is deactivated; the LED of the configured alarm output blinks.

HoldController is activated. Hold,

see “Hold / Version”, page 44.

Freezemeasurement

The measured process value of the first measurement variable isdisplayed.

The process value of the firstmeasurement variable is frozen,see “Calibration / Preparation", page 27.

Setpointswitching

Setpoint pair 1 (SP1 and SP 2) isactive.

Display at operating level:

SPr1

SPr2

SP 3

Sp 4

Setpoint pair 2 (SP3 and SP 4) is active.

Display at operating level:

SP 1

SP 2

SPr3

Spr4

Rangeexpansion (x10)

Process value output is linearbetween SoL and SoH

Process value 0 — 10% of full scale is scaled up to 0 — 100%.

45

MOD/Jbus
Interface The controller can be integrated into a data network via the interface. Applica-tions that can be implemented include:
- Process visualisation- System control- Recording/logging

Fig. 9 Interface

The bus system is based on the master-slave concept. A master computer cancommunicate with up to 31 controllers and instruments (slaves). The interfaceis a serial interface using the RS422 or RS485 standards.

The following data protocol is available:

- MOD/Jbus protocol

CAL

PGM EXIT

K1 K2 K3 K4mV

°C CAL

PGM EXIT

K1 K2 K3 K4pH

°C CAL

PGM EXIT

K1 K2 K3 K4mS

°C

Interface description B 20.2535.2

The interface can only be retrofitted in the factory.

46

Glossary
General Parameters which are associated with outputs K1 or K2 (e.g. tAb1 or tAb2),
are only described here once (e.g. tAb)

Concept Parameter Explanation

Alarm contact With limit control, the active time of the outputs K1 or K2 can bemonitored (alarm monitoring). If the active time exceeds anadjustable value (alarm delay AL2), then the alarm contact isactivated.

In the case of the pulse duration/frequency control, the size ofthe control deviation is monitored. If the control deviationexceeds the adjustable alarm tolerance AL1 and remains sofor a period longer than the alarm delay time AL2, then thealarm contact is activated.

Alarm delay AL2 If the control deviation exceeds the (adjustable) alarm toler-ance AL1, and remains so for a period longer than the (adjusta-ble) alarm delay AL2, then the alarm contact is activated.

Alarm monitoring C213 Determines whether the outputs K1 and/or K2 are monitoredwith the alarm contact.

Alarmtemperature(limit comparator)

AL3 If the measured temperature goes above or below the valueselected for AL3, then the configured output (K2, K3 or K4) isswitched.

Alarm tolerance AL1 If the process value goes above or below the setpoint plus thealarm tolerance (x > SPr..+AL1 or x < SPr..-AL1) and remains sofor a period longer than the alarm delay time AL2, then thealarm contact is activated.

The alarm tolerance is only active when pulse durationand/or pulse frequency control have been configured,see “Configuration level / Controller options –C211”, page 38. If limit control is selected, the valuesfor alarm tolerance are ignored.

Break contact/make contact

C212 Break contact: As long as the switching condition is not ful-filled, the relevant output is active (closed).

Make contact: As long as the switching condition is fulfilled,the relevant output is active (closed).

Code word CodE After switching on the supply voltage, all levels are protectedagainst accidental and unauthorised modification. If parameterselections are to be modified, then the levels must be unlockedby entering a code word. A code word must also be entered toallow calibration of the electrode.If settings are only to be checked, then it is not necessary toremove the edit protection.

Derivative time dt Influences the D component of the controller output signal. Ifthe derivative time is set to “0”, then the control action has no Dcomponent.

47

Glossary

Differential HYS (also Hysteresis) In limit control, the deviation of the processvalue from the setpoint, which is required to initiate switching ofthe control contacts with decreasing or increasing processvalue.

Drop-out delay OFd The time required for the relevant control contact to deactivatewhen the switch condition is no longer fulfilled. Infringements ofthe setpoint (above or below) that are shorter than this time willbe ignored by the controller.

Filter constant df By setting this parameter, interference signals or input signalswhich may cause the controller to react in a manner which isnot desirable, can be filtered out. It is a second order, digital fil-ter.

Hysteresis HYS see Differential

Limit controller C211 Single-setpoint with pull-in and / or drop-out delay.

Logic input 1 / 2 C112 see “Logic inputs”, page 45.

Make contact/break contact

C212 Make contact: As long as the switching condition is fulfilled,the relevant output is active (closed).

Break contact: As long as the switching condition is not ful-filled, the relevant output is active (closed).


Limit controllerMIN contactMake contact

Limit controllerMAX contactMake contact

48

Glossary

MAX / MINcontact

C212 MAX contact: The output of the controller is active when theprocess value is larger than the setpoint.

MIN contact: The output of the controller is active when theprocess value is smaller than the setpoint.

For further explanation, see “Controller / Configuring”, page24 ff.

Max. temperature limit comparator

C211

AL3

AL3 defines the switching point. Function: The output is“active”, when the process value is above the limit value.Example: AL3 = 50Process value rising: relay switches on at 50˚C. Process value falling: relay switches off at 49˚C.

The hysteresis is 1°C or 1°F (option), depending on the temper-ature unit

AL3 is only visible at the operating level when at least one limitcomparator has been configured.

Minimum ON time tr for limit/pulse duration control.In the selection of this value, the technical requirements of thedevices to be operated by the controller (solenoid valve, dosingpump, etc.) are decisive.

Min. temperaturelimit comparator

C211

AL3

AL3 defines the switching point. Function: The output is“active” when the process value is below the limit value.Example: AL3 = 0Process value falling: relay switches on at 0˚CProcess value rising: relay switches off at 1˚C.

The hysteresis is 1°C or 1°F (option), depending on the temper-ature unit.

AL3 is only visible at the operating level when at least 1 limitcomparator has been configured.


49

Glossary

Output limit Y1Y2

Defines the maximum controller output (pulse duration/fre-quency controller) that can be produced via the correspondingrelay.

Process value input 2 (temperature)

C111 With automatic temperature measurement (through Pt100 orPt1000 temperature probes), the measured temperature is indi-cated on the lower display.

Process value x The signal from the pH or redox electrode which is fed into thecontroller.

Proportionalband

Pb Area in which the output signal of a pulse duration/frequencycontroller is porportional to the control deviation. After leavingthe proportional band, the controller outputs the signal that isdefined by the output limit Y1 or Y2.

Pull-in delay Ond The time required for the relevant control contact to be acti-vated when the switching conditions are fulfilled. Brief infringe-ments of the setpoint (above or below) will be ignored by thecontroller.

Pulse contact/steady contact

C213 The response of an alarm contact.

Pulse contact:The alarm output will be activated for approx. 1 sec, even if theswitching conditions (cause) for the alarm are present for alonger time.

The LED associated with the output which has been configuredas the alarm output will blink until the switching conditions(cause) for the alarm are no longer present.

Steady contact:The alarm output remains active until the switching conditions(cause) for the alarm are no longer present.

The LED associated with the output which has been configuredas the alarm output will blink.

Pulse durationcontroller

C211 The period of the pulses depends on the controller output andon the control parameters proportional band Pb, derivativetime dt, reset time rt, pulse period CY and output limit Y1 orY2.

The output signal of a pulse duration controller can be used tooperate solenoid valves, for example.


50

Glossary

Pulse frequency Fr Maximum pulse frequency (only with pulse frequency control).

In the selection of this value, the technical requirements of thedevices operated by the controller (solenoid valve, dosingpump, etc.) are decisive.

The value is limited by the minimum pulse length:

Pulse frequency [1 per min]< (60 / minimum ON time [sec])

Pulse frequencycontroller

C211 The repetition rate of the pulses depends on the controller out-put and the control parameters proportional band Pb, deriva-tive time dt, reset time rt, pulse frequency Fr and outputlimit Y1 or Y2.

The output signal of a pulse frequency controller can be used tooperate magnetic dosing pumps, for example.

Pulse length(duration)

tr for pulse frequency control, otherwise as minimum ON time

Pulse period CY The value defines the pulse length in which pulse length modu-lation occurs (only for pulse duration control).

The value is limited by the minimim ON time, see above:

Period [sec] > minimum ON time [sec]

Reset time rt Integration time constant – control parameter in PI and PIDcontrollers. The value determines the rate with which the con-trol deviation is integrated. If the reset time is set to “0”, thenthe control function has no I component.

Setpoint 1 SP(r)1 The defined value which the control loop should reach (referringto output K1).

The (active) setpoint pair which is fed into the controller ismarked with (r) in the parameter display. See also Setpointswitching

Examplewith active setpoint pair 1 => SPr1, SPr2 and SP 3, SP 4.with active setpoint pair 2 => SP 1, SP 2 and SPr3 , SPr4.

Setpoint 2 SP(r)2 as Setpoint 1, referring to output K2


51

Glossary

Setpoint 3 SP(r)3 referring to output K1. For explanation see Setpoint 1.

Only with activated setpoint switching

Setpoint 4 SP(r)4 referring to output K2. For explanation see Setpoint 1.

Only with activated setpoint switching

Setpointswitching

C112 When setpoint switching has been configured for one of thelogic inputs, setpoint pair 1 is active with the logic input deac-tivated, this means that the controller processes the setpoints 1and 2 (SPr1 and SPr2).

When the logic input is activated, then setpoint pair 2 is active,this means that the controller processes setpoints 3 and 4(SPr3 und SPr4).

Active setpoints are indicated by an “r” in the parameter name(SPr1 and SPr2, and SP3 and SP4 with setpoint pair 1 active)

Steady contact/pulse contact

The response of an alarm contact.

Steady contact:The alarm contact remains active until the switching conditions(cause) for the alarm are no longer present.

The LED associated with the output which has been configuredas the alarm output will blink.

Pulse contact:The alarm output will be activated for approx. 1 sec, even if theswitching conditions (cause) for the alarm are present for alonger time.

The LED associated with the output which has been configuredas the alarm output will blink until the switching conditions(cause) for the alarm are no longer present.

Switchingcondition

The process value goes above or below the setpoint. Theswitching condition also depends on the settings“Break contact / Make contact” and “Min. / Max. contact”.


52

Messages
Warnings – Errors .
Warning/Error

Cause / Behaviour / Action

F010 Alarm tolerance infringed (above or below) and controller alarm delay timeelapsed.

Relays K1 / K2 behave according to configuration C212,see “Configuration level / Controller outputs – C212”, page 39.

Check measurement. Check control parameters.

F022 Underrange.

Controller goes into “Hold”, see “Hold / Version”, page 44.

Check configured setpoints, see “Operating level / Settings”, page 31.

F023 Overrange.

The controller goes into “Hold”, see “Hold / Version”, page 44.

Check configured setpoints, see “Operating level / Settings”, page 31 ff.

F024 In automatic temperature measurement, a temperature less than -50°C or largerthan +250°C was measured.

The controller goes into “Hold”, see “Hold / Version”, page 44.

Check connection of resistance thermometer,see “Installation / Electrical connection”, page 14 ff.

F030 The process value output is below its minimum value (SoL)(only if output 3 has been configured as process value output (C213)).

Check setting, see “Configuration level / SoL - SoH - OFFS - nuLL”, page 41.

F031 The process value output exceeds its maximum value (SoH) (only if output 3 hasbeen configured as process value output (C213)).


F050 Parmeter limits for the process value output have been swapped; SoL is largerthan SoH (only if output 3 has been configured as process value output (C213)).


F053 Setpoint combination incorrect.

Precondition: Both controllers must be configured as pulse duration or pulsefrequency controllers. The controller contacts must be configured to MIN/MIN orMAX/MAX, see “Configuration level / Controller outputs – C212”, page 39.

Cause: With MIN/MIN, an error message is generated if w1 > w2.No error message occurs if w1 < w2.

With MAX/MAX, an error message is generated if w1<w2.No error message occurs if w1 > w2.

This also applies to the second setpoint pair if setpoint switching has been con-figured.

53

Warnings – Errors Messages

Warning/Error

Cause / Behaviour / Action

F060 Minimum ON time 1 (tr1) is larger than pulse period 1 (CY1) (only if controller 1 hasbeen configured as pulse duration controller) or

minimum ON time 1 (tr1) is larger than 1/60 of pulse frequency 1 (Fr1) (only if con-troller 1 has been configured as pulse frequency controller),see “Parameter level / Settings”, page 32 ff.

F061 Minimum ON time 2 (tr2) is larger than pulse period 2 (CY2) (only if controller 2 hasbeen configured as pulse duration controller) or

minimum ON time 2 (tr2) is larger than 1/60 of pulse frequency 2 (Fr2) (only if con-troller 2 has been configured as pulse frequency controller),see “Parameter level / Settings”, page 32 ff.

Err There was an error during electrode calibration (dual-point). The old calibrationdata are retained.

Cause: The slope that was set or determined during calibration is outside the permissiblerange. Slope 75.0 — 110.0% (with standard electrode configured), or slope10.0 — 110.0% (configured for special electrode),

or

the zero point that was entered or determined during calibration is outside thepermissible range. Zero point 5.00 — 9.00 pH (configured for standard electrode)or zero point -2.00 — 16.00 pH (configured for special electrode)

Remedy:If required, configure special electrode (antimony),see “Configuration level / see “Logic inputs...– C112”, page 36.

and / or

recalibrate correctly, see “Calibration”, page 27 ff. or

enter zero point (nuLL) or slope (SLoP) from the keys,see “Configuration level / SLoP”, page 42.

Errors F010 to F031 and “Err” will generate an alarm; the configured alarm outputwill switch and the corresponding LED will blink.

On errors F022 to F024 and “Err”, the controller additionally goes into HoLd mode,see “Hold / Version”, page 44.

On warnings F050 to F061, the alarm relay does not switch, but the correspondingLED blinks.

54

Appendix
Configuring If many instrument parameters are to be modified, it is advisable to note these
in the table below, and to modify them in the sequence given.

The following list shows the maximum number of the parameters that can bealtered.

Depending on type and configuration, your instrument may not show some ofthe parameters listed.

Code word to unlock the individual levels,see “Operation / Programming / Enabling the levels”, page 23.

Para-meter

Explanation Factorysetting

Newsetting

seepage

Configuration level

C111 analogue inputs 0000 35

C112 logic inputs / probe / mains supply 0000 36

C113 serial interface 0100 37

C211 controller options 0000 38

C212 controller outputs 0010 39

C213 other outputs 0000 40

SoL standard signal scaling – start value -1.00 41

SoH standard signal scaling – end value 14.00 41

SLoP electrode slope 100.0 42

nuLL electrode zero point 7.00 41

OFFS process value correction: temperature 0.0 41

Parameter level

Pb1 proportional band 1 7.00 32

Pb2 proportional band 2 7.00 32

dt1 derivative time 1 0 32

dt2 derivative time 2 0 32

rt1 reset time 1 0 32

rt2 reset time 2 0 32

tr1 minimum ON time 1 0.2 32

tr2 minimum ON time 2 0.2 32

HYS1 differential 1 0.3 32

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Programming the controller

Appendix

HYS2 differential 2 0.3 32

Ond1 pull-in delay 1 1.0 32

Ond2 pull-in delay 2 1.0 32

OFd1 drop-out delay 1 0.2 32

OFd2 drop-out delay 2 0.2 32

Fr1 maximum pulse frequency 1 100 32

Fr2 maximum pulse frequency 2 100 32

CY1 pulse period 1 20 32

CY2 pulse period 2 20 32

Y1 output limit for K1 100 32

Y2 output limit for K2 100 32

dF filter constant 0.6 32

Operating level

SP(r)1 setpoint 1 -1.00 31

SP(r)2 setpoint 2 14.00 31

SP(r)3 setpoint 3 -1.00 31

SP(r)4 setpoint 4 14.00 31

CodE code word 0000 31

InP2 temperature display during temperaturemeasurement

25.0 31

AL1 alarm tolerance 0.00 31

AL2 alarm delay 300 31

AL3 limit comparator for temperature 250 31

Para-meter

Explanation Factorysetting

Newsetting

seepage

56

Programming the controller

µP transmitter / controller for pH value B 20 - Jumo · 2018-10-12 · µP transmitter /...

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Transcript of µP transmitter / controller for pH value B 20 - Jumo · 2018-10-12 · µP transmitter /...