CT Portable Advanced Electronic Balances - MAssetRecovery · Ohaus Corporation 29 Hanover Road ......

Instruction Manual

PORTABLE AdvancedElectronic BalancesCT Series

Ohaus CorporationOhaus CorporationOhaus CorporationOhaus CorporationOhaus Corporation29 Hanover RoadFlorham Park NJ07932-0900

2

NOTICE:NOTICE:NOTICE:NOTICE:NOTICE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLYWITH THE LIMITS FOR A CLASS A DIGITAL DEVICE, PURSUANT TO PART 15OF THE FCC RULES.

THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTIONAGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATEDIN A COMMERCIAL ENVIRONMENT. THIS EQUIPMENT GENERATES, USES,AND CAN RADIATE RADIO FREQUENCY ENERGY AND, IF NOT INSTALLEDAND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSEHARMFUL INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OFTHIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE HARMFULINTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO COR-RECT THE INTERFERENCE AT HIS OWN EXPENSE.

THIS DIGITAL APPARATUS DOES NOT EXCEED THE CLASS A LIMITS FORRADIO NOISE EMISSIONS FROM DIGITAL APPARATUS AS SET OUT IN THEINTERFERENCE-CAUSING EQUIPMENT STANDARD ENTITLED “DIGITAL APPA-RATUS”, ICES-003 OF THE DEPARTMENT OF COMMUNICATIONS.

CET APPAREIL NUMERIQUE RESPECTE LES LIMITES DE BRUITSRADIOELECTRIQUES APPLICABLES AUX APPAREILS NUMERIQUES DE CLASSEA PRESCRITES DANS LA NORME SUR LE MATERIEL BROUILLEUR : “APPAREILSNUMERIQUES”, NMB-003 EDICTEE PAR LE MINISTRE DES COMMUNICATIONS.

Unauthorized changes or modifications to this equipment are not permitted.

3

TABLE OF CONTENTSTABLE OF CONTENTSTABLE OF CONTENTSTABLE OF CONTENTSTABLE OF CONTENTS

INTRODUCTION .................................................................................................. 5

DESCRIPTION ..................................................................................................... 5

FEATURES .......................................................................................................... 6

UNPACKING ........................................................................................................ 7

INSTALLATION .................................................................................................... 7

Environment .................................................................................................. 7

Power Options .............................................................................................. 8

Battery Installation ........................................................................................ 8

AC Adapter ................................................................................................... 8

Model CT200 Shipping Bracket .................................................................... 9

Platform Installation ...................................................................................... 9

Weigh Below Hook ...................................................................................... 10

OPERATION ...................................................................................................... 10

Turning the Balance On and Off ................................................................. 10

Checking Calibration ................................................................................... 11

Weighing ..................................................................................................... 11

Taring .......................................................................................................... 12

Parts Counting ............................................................................................ 13

Printing ........................................................................................................ 14

USING MENUS TO CONFIGURE THE BALANCE ........................................... 15

CALIBRATION MENU........................................................................................ 16

Calibration Menu Protection ....................................................................... 16

Calibration Masses ..................................................................................... 16

Span Calibration ......................................................................................... 17

Linearity Calibration .................................................................................... 18

End .............................................................................................................. 18

SETUP MENU .................................................................................................... 20

Accessing the Setup Menu ......................................................................... 21

Reset to Factory Settings ........................................................................... 21

Unit Selection .............................................................................................. 22

Taels ........................................................................................................... 22

Custom Units .............................................................................................. 23

4

Custom Units Conversion Factor ................................................................ 24

Example ................................................................................................... 26

Averaging Level .......................................................................................... 27

Stability Range ............................................................................................ 28

Auto-Zero .................................................................................................... 29

Parts Counting Error Level ......................................................................... 30

Auto-Off ....................................................................................................... 31

End .............................................................................................................. 31

CALIBRATION LOCK-OUT PROTECTION....................................................... 32

CARE AND MAINTENANCE ............................................................................. 33

TROUBLESHOOTING ....................................................................................... 33

Error Codes ................................................................................................. 34

SERVICE INFORMATION ................................................................................. 34

PARTS INFORMATION ..................................................................................... 35

REPLACEMENT PARTS ................................................................................... 35

SECURITY ......................................................................................................... 36

ACCESSORIES ................................................................................................. 36

SPECIFICATIONS ............................................................................................. 37

LIMITED WARRANTY ....................................................................................... 38

5

INTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTION

This manual covers installation, operation and troubleshooting for the OHAUS®

Portable Advanced Electronic Balances, Models CT10, CT200, CT600, CT1200 andCT6000. To ensure proper operation of the balance, please read this manualcompletely.

DESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTION

The Ohaus Portable Advanced balances are precision weighing instruments, de-signed to provide years of service with virtually no maintenance. The PortableAdvanced housing is constructed of a material which is impact resistant, contains aone piece solid-state precision electronics PC board, and a five digit LCD display whichis 0.5 inches in height. All Portable Advanced balances are initially factory set tomeasure in grams and can be set to measure in other units of measure as desired.Each balance operates through a series of menus which enable precise calibration andthe selection of various parameters which enhance operation. A built in lock switchprevents calibration settings from being changed. Power is supplied through an ACadapter or batteries. Accessories include: an RS232 Interface Kit which allows printingof results through an external computer or printer, security device, calibration masses,scoops and carrying cases. See accessory section.

Portable Advanced Balance

6

FEATURES

Portable Advanced balances contain two display menus which enable you to calibrateand configure the balance for specific operating requirements. When an optionalRS232 Interface is installed, a third menu is available.

• CALIBRATIONCALIBRATIONCALIBRATIONCALIBRATIONCALIBRATION Menu - Allows the balance to be calibrated by using either Span orLinearity calibration methods.

• SETUPSETUPSETUPSETUPSETUP Menu - Allows the balance to be set for environmental conditions andcustomized for specific weighing functions.

• PRINTPRINTPRINTPRINTPRINT Menu - When an optional RS232 Interface is installed, allows the selectionof parameters under which the balance will interface with a computer or a printer.Instructions for installing and using the interface are provided in a separate manualwhich comes with the accessory.

When the balance is first turned on, it can be used to weigh in grams or tare itemswithout setting the menus. Refer to the individual menus in this manual for detaileddescriptions and procedures for programming.

7

UNPACKINGUNPACKINGUNPACKINGUNPACKINGUNPACKING

All Portable Advanced balances are supplied with a weighing platform, AC poweradapter, instruction manual and warranty card. Items checked below are supplied withspecific models as follows:

CT10CT10CT10CT10CT10 CT200CT200CT200CT200CT200 CT600CT600CT600CT600CT600 CT1200CT1200CT1200CT1200CT1200 CT6000CT6000CT6000CT6000CT6000Calibration MassCalibration MassCalibration MassCalibration MassCalibration Mass ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

Draft ShieldDraft ShieldDraft ShieldDraft ShieldDraft Shield ✓ ✓ ✓ ✓ ✓Gem CupGem CupGem CupGem CupGem Cup ✓ ✓ ✓ ✓ ✓Weigh Below HookWeigh Below HookWeigh Below HookWeigh Below HookWeigh Below Hook ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

Antistatic TowelettesAntistatic TowelettesAntistatic TowelettesAntistatic TowelettesAntistatic Towelettes ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

ScoopScoopScoopScoopScoop ✓✓✓✓✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

Hex KeyHex KeyHex KeyHex KeyHex Key ✓✓✓✓✓

Carefully unpack all items. The platform for models CT200, CT600 and CT1200 ispacked in the upper portion of the packing material. Be sure to remove the platformand do not discard the packing material. It is recommended to save the packingmaterial and carton for storing and/or transporting the balance. The packing materialmay also be used as an insert for the Vinyl carrying case (optional accessory) listedin the accessory section of this manual.

AC AdapterReceptacle

DisplayWindow

Location for optionalsecurity device

Location for optionalRS232 interface

Specifications Label

Calibration Menu Lockout Switch

EnvironmentEnvironmentEnvironmentEnvironmentEnvironment

Balance performance can be affected by excessive air currents, corrosives, vibration,temperature or humidity extremes.

DO NOTDO NOTDO NOTDO NOTDO NOT use the balance:

• Next to open windows or doors causing drafts or rapid temperature changes.• Near air conditioning or heat vents.• Near vibrating, rotating or reciprocating equipment.• On an non-level work surface.• Near corrosive vapors (example: nitric acid).

INSTALLATIONINSTALLATIONINSTALLATIONINSTALLATIONINSTALLATION

8

Power OptionsPower OptionsPower OptionsPower OptionsPower Options

The balance can be operated using 8 AA alkaline batteries (not included), or from anyAC electrical outlet by using the AC adapter supplied.

Battery InstallationBattery InstallationBattery InstallationBattery InstallationBattery Installation

1. Remove the platform on all models except the CT6000 (platform is not removableon the CT6000).

2. Turn the balance over.

3. Press the tabs on the battery cover inward and lift the cover off.

4. Remove the battery holder.

5. Install the 8 AA alkaline batteries in the battery holder, orienting the plus (+) andminus (-) ends as indicated on the holder.

6. Replace the battery holder in the compartment. Make sure the snap connector isconnected.

7. Replace the battery cover.

NOTENOTENOTENOTENOTE: The illustration shows a balancewith four feet. Certain models containonly three feet.

Press tabs toremove cover

AC AdapterAC AdapterAC AdapterAC AdapterAC Adapter

Plug the jack from the adapter into thereceptacle located on the right side of thebalance. Plug the adapter into a con-venient AC outlet.

9

Model CT200 Shipping BracketModel CT200 Shipping BracketModel CT200 Shipping BracketModel CT200 Shipping BracketModel CT200 Shipping Bracket

The Model CT200 is factory packedwith a shipping bracket which must beremoved before installing the Platform.

1. Using the hex key provided, re-move the screw which securesthe bracket to the transducer.

2. Slide the bracket out to remove it.

BRACKET

CAUTION:CAUTION:CAUTION:CAUTION:CAUTION: DO NOT ATTEMPT TOREMOVE THE DOWN STOPADJUSTMENT SCREW.

REMOVE SMALLER SCREW(TURN COUNTERCLOCKWISE)

Platform InstallationPlatform InstallationPlatform InstallationPlatform InstallationPlatform Installation

On the CT10 and CT6000 models, theplatform is installed before shipment(CT10 platform is removable, CT6000platform is not). On all other models,the platform must be installed on top ofthe balance by inserting the shaft of theplatform into the hole in the weighingmechanism.

The CT10 is equipped with a draftshield which fits over the platform.

NOTE:NOTE:NOTE:NOTE:NOTE: The CT10 draft shield and gemcup should be wiped with the antistatictowelette supplied with the balance toeliminate any static buildup.

10

Low Battery Indicator

Parts Counting Indicator

Weighing Unit Indicators&

Stability Indicators

Weigh Below HookWeigh Below HookWeigh Below HookWeigh Below HookWeigh Below Hook

A weigh below hook is provided with mod-els CT200, CT600 and CT1200 for belowbalance weighing applications.

To install the hook, turn the balance overholding the platform in place. Screw thehook into the platform shaft from the bot-tom of the balance. Tighten finger-tight.Mount the balance on a suitable surface orstand which permits below balance weigh-ing.

Turning the Balance On and OffTurning the Balance On and OffTurning the Balance On and OffTurning the Balance On and OffTurning the Balance On and Off

With no load on the platform, press .

All segments of the display will turn on,

then the software version is displayed.

The display will momentarily blank and

then indicate zero.

NOTE: NOTE: NOTE: NOTE: NOTE: Allow at least 5 minutes for the

balance to temperature stabilize before

using. If the balance is moved to a differ-

ent temperature environment, allow addi-

tional time to stabilize.

To turn the balance off, press and

hold until OFF is displayed, then

release it.

OPERATIONOPERATIONOPERATIONOPERATIONOPERATION

Weigh Below Hook

11

Checking CalibrationChecking CalibrationChecking CalibrationChecking CalibrationChecking Calibration

Before using the balance, its calibrationshould be checked. The balance hasbeen calibrated before shipment, how-ever, calibration is influenced by factorssuch as:

• Variations in the earths gravitationalfield at different latitudes of the world.

• Rough handling.

• Changes in work location.

• Height above sea level.

To check the balance’s calibration, placea known mass on the center of the plat-form and read the displayed weight.

If the displayed weight differs from theknown mass by more than acceptablelimits, refer to the Calibration Menu andthe Specifications at the rear of the manual.

WeighingWeighingWeighingWeighingWeighing

1. Press to set the display to zero.

2. Place the object to be weighed on the

platform.

3. Wait until the unit indicator appears

before reading the displayed weight.

When the unit indicator appears, the

reading is stable.

12

TaringTaringTaringTaringTaring

When weighing samples that must be heldin a container, taring enables the balanceto subtract the weight of the container anddisplay only the net weight of the sample.

1. Press with no load on the plat-

form to set the display to zero.

2. Place the empty container on the plat-

form. Its weight will be displayed.

3. Press . Zero will be displayed

and the container’s weight will be stored

in the balance’s memory.

4. Add the sample to the container and

read its net weight on the display.

NOTE:NOTE:NOTE:NOTE:NOTE: The combined weight of the con-

tainer and the sample must notmust notmust notmust notmust not exceed the

capacity of the balance.

5. When the container and its con-

tents are removed, the container

weight will be displayed as a

negative number.

The tared weight will remain in

memory until is pressed

again or the balance is turned

off.

(Example)

13

Parts CountingParts CountingParts CountingParts CountingParts Counting

Parts Counting must be enabled in theSetup menu before using this procedure.The balance will count parts based on theweight of a reference sample, 5, 10, 20,30, 40 or 50 parts. For optimum results,the parts should be uniform in weight.

1. Repeatedly press until PC CON

is displayed.

2. Place a container on the platform,

then press . The balance dis-

plays PCADD 5 which is the preset

reference quantity.

3. To change the reference quantity,

repeatedly press until the de-

sired quantity is displayed.

NOTE: NOTE: NOTE: NOTE: NOTE: If you need to exit or restart parts

counting at any time, press and hold

until PC CON is displayed, then release it.

Return to step 2 to restart, or press

for other weighing functions.

4. Add the displayed number of parts to

the container, then press . The

balance will display the current num-

ber of parts.

Parts Counting Factory SettingsParts Counting Factory SettingsParts Counting Factory SettingsParts Counting Factory SettingsParts Counting Factory Settings

Parts Counting Mode ........... DisabledPC Err ......................................... OFF

14

NOTENOTENOTENOTENOTE: If PCErr is displayed, the sample is

too small to provide accurate results within

the selected parts counting error level (PC

Err of the Setup menu).

5. Add parts to the container as desired

and read the quantity on the display.

NOTENOTENOTENOTENOTE: The reference quantity will remain

in memory until it is changed or the bal-

ance is turned off.

6. To switch between viewing the quan-

tity and weight of the parts,

press .

(Example)

PrintingPrintingPrintingPrintingPrinting

If the optional RS232 interface is installed,

display data can be output from the bal-

ance. The button operates in a

different manner depending upon if more

than one measuring unit is selected.

When only one measuring unit is en-

abled, a short press on will enable

printing when -P- is displayed. A long

press will turn the balance off. When

more than one measuring unit is enabled,

a short press on changes the mea-

suring unit, a one-second press will initate

printing, a long press will turn the balance

off. To print data, press and

hold until -P- is displayed, then

quickly release it.

15

USING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCE

The following illustration identifies the items in each menu and the factory defaultsettings are shown in bold type.

SETUP

RESETYes,No

UNIT SELECTIONggggg, oz, oz t, dwt, lb,t, • (custom), PC

DFLT/USR

AVERAGING LEVEL0, 11111, 2

STABILITY.5d, 1d1d1d1d1d, 2d, 5d

AUTO ZEROOFF, .5d.5d.5d.5d.5d, 1d,3d

CUSTOM UNITCONVERSIONFACTOR

Mantissa1.00001.00001.00001.00001.0000

ExponentE0E0E0E0E0,E1, E2,E3,E -3,E -2, E-1

LSD.1d, .2d, .5d, 1d1d1d1d1d,2d, 5d, 10d

PARTS COUNTINGERROR LEVEL

OFFOFFOFFOFFOFF, 1, 2.5, 5

AUTO OFFOFFOFFOFFOFFOFF, 60, 120, 180

END

CAL

SPAN

LINEARITY

END

PRINT

NOTE: Refer to instructionsprovided with the optionalRS232 interface kit.

To access a menu, press and hold until desired menu appears, then release it.

Use these buttons to step through menus and select submenus:

nextselection

selectdisplayed item

16

CALIBRATION MENUCALIBRATION MENUCALIBRATION MENUCALIBRATION MENUCALIBRATION MENU

Portable Advanced balances can be calibrated in two ways: Span calibration orLinearity calibration. Span calibration resets the balance’s weighing range using twopoints: zero and a calibrated mass value at or near the balance’s capacity. Linearitycalibration minimizes deviation between actual and displayed weights within thebalance’s weighing range using three points: zero, a calibrated mass value within thebalances weighing range, and a value at or near the balance’s specified capacity. Theillustration below indicates the sequence in which submenus appear on the Calibrationmenu.

CAL

SPAN

LINEARITY

END

Calibration Menu ProtectionCalibration Menu ProtectionCalibration Menu ProtectionCalibration Menu ProtectionCalibration Menu Protection

The Calibration menu may be locked outto prevent unauthorized access. To lockout calibration menu, refer to the sectiontitled Calibration Lock-Out Protection.

Calibration MassesCalibration MassesCalibration MassesCalibration MassesCalibration Masses

Before beginning calibration, make surecalibrated masses are on hand. If youbegin calibration and realize masses arenot available, either turn the balance off, orgo through the procedure without masses.The balance will use previously storedcalibration data. Calibration should beperformed as necessary to ensure accu-rate weighing. Masses required to per-form the procedures are listed in the adja-cent table.

Model Span LinearityModel Span LinearityModel Span LinearityModel Span LinearityModel Span Linearity Masses Masses Masses Masses Masses Masses Masses Masses Masses Masses

CT10 10g 5g, 10gCT200 200g 100g, 200gCT600 300g (2) 300gCT1200 1000g 500g, 1000gCT6000 2000g (3) 2000g

1000g 1000g

Required Calibration MassesRequired Calibration MassesRequired Calibration MassesRequired Calibration MassesRequired Calibration Masses

17

Span CalibrationSpan CalibrationSpan CalibrationSpan CalibrationSpan Calibration

1. Press and hold until CAL is dis-

played, then release it. Balance will

display SPAN.

2. Press . When released, C 0g

will be displayed indicating that no

mass should be on the platform.

3. Press . The display will show

-C- followed by the value of the mass

which must be placed on the plat-

form.

NOTE: NOTE: NOTE: NOTE: NOTE: Do not disturb the balance when

-C- is displayed. Disturbances will result

in improper calibration.

4. Place the required mass on the plat-

form and press . The display will

show -C- while the balance recali-

brates. When the mass on the plat-

form is displayed along with the cur-

rent unit indicator, the balance is reca-

librated.

18

Linearity CalibrationLinearity CalibrationLinearity CalibrationLinearity CalibrationLinearity Calibration

1. Press and hold until CAL is

displayed, then release. Balance will

display SPAN.

2. Press and the display will show

LIN.

3. Press . When released, C 0g

will be displayed, indicating that no

mass should be on the platform.


-C- followed by the value of the mass

which must be placed on the plat-

form.


form.

19


-C- momentarily, then C followed by

the next mass to be placed on the

platform. Do not disturb the balance

when -C- is displayed. Disturbances

will result in improper calibration.


form, then press . The display

will show -C- while the balance reca-

librates. When the mass on the plat-

form is displayed along with the cur-

rent unit indicator, the balance is reca-

librated.

EndEndEndEndEnd

If you have entered the Calibration menuand do not wish to calibrate the balance,use END to return to normal weighingoperations.

1. Repeately press until END is

displayed.

2. Press . When released, the bal-

ance will returned to normal weighing

operations.

20

SETUP

RESETYes,No

UNIT SELECTIONggggg, oz, oz t, dwt, lb,t, • (custom), PC

DFLT/USR

AVERAGING LEVEL0, 11111, 2

STABILITY.5d, 1d1d1d1d1d, 2d, 5d

AUTO ZEROOFF, .5d.5d.5d.5d.5d, 1d,3d

CUSTOM UNIT*CONVERSIONFACTOR

Mantissa1.00001.00001.00001.00001.0000

ExponentE0E0E0E0E0,E1, E2,E3,E -3,E -2, E-1

LSD.1d, .2d, .5d, 1d1d1d1d1d,2d, 5d, 10d

PARTS COUNTING**ERROR LEVEL

OFFOFFOFFOFFOFF, 1, 2.5, 5

AUTO OFFOFFOFFOFFOFFOFF, 60, 120, 180

END

* C.UNIT only appears in menu if custom unit is enabled in SEL submenu.** PC ERR only appears in menu if parts counting is enabled in SEL submenu.

SETUP MENUSETUP MENUSETUP MENUSETUP MENUSETUP MENU

The Setup menu is used to customize the operation of the balance for your specificrequirements. It contains submenus which enable you to turn features on or off, andprogram balance parameters. The illustration below indicates the sequence in whichsubmenus appear on the Setup menu.

21

SETUP MENUSETUP MENUSETUP MENUSETUP MENUSETUP MENUFACTORY SETTINGSFACTORY SETTINGSFACTORY SETTINGSFACTORY SETTINGSFACTORY SETTINGS

Unit Selection gAveraging Level 1Stability 1dAuto Zero .5dConversion Factor

Mantissa 1.0000Exponent 0LSD 1

PC Error Level OFFAuto Off OFF

Accessing the Setup MenuAccessing the Setup MenuAccessing the Setup MenuAccessing the Setup MenuAccessing the Setup Menu

To access the Setup menu, press and hold

until SETUP is displayed, then re-

lease.

To access a submenu:

1. Repeatedly press until the de-

sired submenu is displayed.

2. Press to select the displayed

submenu.

NOTE:NOTE:NOTE:NOTE:NOTE: You must use END to store any

changes you make to the Setup menu.

The following sections describe each itemon the Setup menu in detail.

Reset to Factory SettingsReset to Factory SettingsReset to Factory SettingsReset to Factory SettingsReset to Factory Settings

This submenu enables you to reset allSetup menu selections to the original fac-tory settings outlined in the adjacent table.

To reset to factory settings:

1. Access the Reset submenu.

2. Press to enter RESET.

3. Press repeatedly to change the

setting from YES to NO. Selecting

YES resets the Setup menu to the

original factory settings.

4. Press to accept the displayed

setting.

22

Display Weighing Units and ModesDisplay Weighing Units and ModesDisplay Weighing Units and ModesDisplay Weighing Units and ModesDisplay Weighing Units and Modes Indicator Indicator Indicator Indicator Indicator g gramsgramsgramsgramsgrams oz ounces ozt troy ounces dwt pennyweight lb pounds t taels • custom unit pc parts counting

Unit SelectionUnit SelectionUnit SelectionUnit SelectionUnit Selection

The Unit Selection submenu permits youto specify which weighing units and oper-ating modes will be enabled for use dur-ing operation. The adjacent table lists theunits and modes available on PortableAdvanced balances.

1. Access the Sel submenu.

2. Press , the display will show

the grams unit indicator (g) along

with the current status (ON/OFF).

3. Press to change the status.


status, when released, the display

will show the next unit indicator along

with the current status.

5. Set each unit or mode ON or OFF as

in steps 3 and 4.

TaelsTaelsTaelsTaelsTaels

If taels are enabled, you will be requiredto choose one of three different taels:Hong Kong, Singapore, or Taiwan.

1. When the display shows TAEL 1,

press to change to another tael

if desired.


tael.

Taiwan

Hong Kong

Singapore

23

Unit Selection (Cont.)Unit Selection (Cont.)Unit Selection (Cont.)Unit Selection (Cont.)Unit Selection (Cont.)

Proceed through all of the weighing unitsin the same manner, setting each one asdesired.

Custom UnitsCustom UnitsCustom UnitsCustom UnitsCustom Units

Custom Units can be set to one of thefollowing:

DFLT Causes carats to be used as thecustom unit.

USR Enables you to enter a conversionfactor (to convert grams to someother unit of measure), and displayweight in the desired custom units.The conversion factor is entered inthe C. Unit submenu.

24

1. Access the C.Unit submenu.

2. The mantissa of the current conver-sion factor will be displayed. This willbe a number between 0 and 9.9999with the first digit flashing. For con-version factors outside of this range,the exponent will be be used to movethe decimal point.

3. Press to change the value of

the first digit.

4. When the desired value is displayed,

press to accept it and the next

digit will begin flashing.

FLASHING

FLASHING

Custom Unit Conversion FactorCustom Unit Conversion FactorCustom Unit Conversion FactorCustom Unit Conversion FactorCustom Unit Conversion Factor

Conversion Weight WeightFactor x in = in

grams custom unit

Conversion factors are expressed in sci-entific notation and entered into the bal-ance in three parts:

• A number between 0 and 9 to fourdecimal places

• A power of 10 called the exponent.

• A least significant digit (LSD).

Use the following procedure to enter con-version factors:

When you need to display weight measurements in a weighing unit other than thoseprovided standard with the balance, this feature can be used to create your own customweighing unit. It permits you to enter a conversion factor which the balance will use toconvert grams to the desired unit of measure.

One example is shown at the end of this section. It illustrates how to set the conversionfactors to display weight in Grains.

ExponentExponentExponentExponentExponent

SCIENTIFIC NOTATIONSCIENTIFIC NOTATIONSCIENTIFIC NOTATIONSCIENTIFIC NOTATIONSCIENTIFIC NOTATION

NumberNumberNumberNumberNumberBetweenBetweenBetweenBetweenBetween

Conv.Conv.Conv.Conv.Conv. 0 and0 and0 and0 and0 and PowerPowerPowerPowerPower Man-Man-Man-Man-Man-FactorFactorFactorFactorFactor 9.99999.99999.99999.99999.9999 of 10of 10of 10of 10of 10 tissatissatissatissatissa Exp.Exp.Exp.Exp.Exp.

1234 = 1.234 x 1000 = 1.234 x 103

123.4 = 1.234 x 100 = 1.234 x 102

12.34 = 1.234 x 10 = 1.234 x 101

1.234 = 1.234 x 1 = 1.234 x 100

.1234 = 1.234 x .1 = 1.234 x 10-1

.01234 = 1.234 x .01 = 1.234 x 10-2

.00123 = 1.23 x .001 = 1.23 x 10-3

25

5. Set the value of all digits in the same

manner.

6. After the last digit is entered, the dis-

play will show the current exponent.

The exponent is shown on the display

preceded by the letter E.

There are 7 exponent values which youcan choose from (see table).

7. Press to change the exponent.


exponent. When is released,

the display will show the current least

significant digit.

The least significant digit is the digit in thelast decimal place on the display. Theselection you make causes the balance tocount by 1’s, 2’s or 5’s in this position.There are 7 LSD settings you can choosefrom (see table).

9. Press to change the LSD.


LSD. When is released, C.Unit

will be displayed again and the

Setup menu will be returned.

11. Proceed to the next item on the Setup

menu or use END to exit the Setup

menu and save your selections.

EXPONENTSEXPONENTSEXPONENTSEXPONENTSEXPONENTS

E-3 Moves decimal point 3places to the left.

E-2 Moves decimal point 2places to the left.

E-1 Moves decimal point 1place to the left.

E0E0E0E0E0 Leaves decimal point inLeaves decimal point inLeaves decimal point inLeaves decimal point inLeaves decimal point innormal position.normal position.normal position.normal position.normal position.

E1 Moves decimal point 1place to the right.

E2 Moves decimal point 2places to the right.

E3 Moves decimal point 3places to the right.

LSD’sLSD’sLSD’sLSD’sLSD’s

LSD .1 *Adds one decimal placeand Display counts by 1’s.

LSD .2 *Adds one decimal placeand Displayby counts by2’s.

LSD.5 *Adds one decimal placedisplay counts by 5’s.

LSD 1 LSD 1 LSD 1 LSD 1 LSD 1 Display counts by 1’s.Display counts by 1’s.Display counts by 1’s.Display counts by 1’s.Display counts by 1’s.(Normal Setting)(Normal Setting)(Normal Setting)(Normal Setting)(Normal Setting)

LSD 2 Display counts by 2’s.

LSD 5 Display counts by 5’s.

LSD 10 Removes last decimalplace and Display countsby 1’s.

* Sensitivity to vibration is increasedwith this LSD setting.

26

IF 1 grain = 0.0647989 grams

THEN 1 gram =

OR 1 gram = 15.43236 grains

10.0647989

“15432”

Number = 1.5432E = 1 (to move the decimal point

one place to the right)d = 1 (normal setting)

ExampleExampleExampleExampleExample

Converting to “Grains”Converting to “Grains”Converting to “Grains”Converting to “Grains”Converting to “Grains”

1. Determine the number of grains equal

to one gram:

2. Since the balance displays only 5

digits, round the number to the 5 most

significant digits:

3. Using this number, enter the conver-

sion factor:

The display will indicate 1 unit for every

grain placed on the platform.

27

Averaging LevelAveraging LevelAveraging LevelAveraging LevelAveraging Level

Averaging level compensates for vibra-tion or excessive air currents. During op-eration, the balance continually takesweight readings from the weighing cell.Successive readings are then digitally pro-cessed to achieve a stabilized display.Use this submenu to specify how muchprocessing you need to obtain stable re-sults.

NOTENOTENOTENOTENOTE: Averaging level does not affectbalance accuracy.

Select one of three averaging levels usingthe adjacent table as a guide.

To view or change the averaging level:

1. Access the AL submenu.

2. Press to display the current set-

ting.

3. Press to change the setting.


setting, when released, AL will bedisplayed again.

AVERAGING LEVELAVERAGING LEVELAVERAGING LEVELAVERAGING LEVELAVERAGING LEVEL

AL 0 Reduced stability, fasteststabilization time.

AL 1AL 1AL 1AL 1AL 1 Normal stability, normalNormal stability, normalNormal stability, normalNormal stability, normalNormal stability, normalstabilization timestabilization timestabilization timestabilization timestabilization time .....

AL 2 More stability, slowstabilization time.

28

Stability RangeStability RangeStability RangeStability RangeStability Range

The stability range specifies how much adisplayed weight may change while thestability indicator (unit indicator) remainsON. When displayed weight changesbeyond the allowable range, the stabilityindicator turns OFF indicating an unstablecondition. Portable Advanced balancespermit you to select one of four stabilityranges (in divisions) as shown in the table.

NOTENOTENOTENOTENOTE: When the RS232 interface is

configured to print stable data only, the

stability range also governs data output.

Displayed data will only be output if it is

within the selected stability range.

To view or change the stability range:

1. Access the Stb submenu to displaythe current setting.


ting.



setting, when released, Stb will be

displayed again.

STABILITY RANGESTABILITY RANGESTABILITY RANGESTABILITY RANGESTABILITY RANGE

.....5d Smallest range: stability indi-cator is ON only when dis-played weight is within .5 divi-sions.

1d1d1d1d1d Normal range.Normal range.Normal range.Normal range.Normal range.

2d Increased range.

5d Largest range: stability indi-cator is ON with displayedweight changes up to 5 divi-sions.

29

Auto-ZeroAuto-ZeroAuto-ZeroAuto-ZeroAuto-Zero

Auto-Zero minimizes the effects of tem-perature changes and shift on the zeroreading. By defining a threshold level indivisions, the balance maintains the zerodisplay until the threshold is exceeded.This submenu permits you to select one ofthree threshold levels, or turn the featureOFF. Auto-zero only functions when thedisplay reads zero.

To view or change the auto-zero setting:

1. Access the Auto0 submenu.


ting.



setting, when released, Auto0 will be

displayed again.

AUTO ZEROAUTO ZEROAUTO ZEROAUTO ZEROAUTO ZERO

OFF Turns Auto-Zero OFF..5d.5d.5d.5d.5d Sets threshold to .5 divisions.Sets threshold to .5 divisions.Sets threshold to .5 divisions.Sets threshold to .5 divisions.Sets threshold to .5 divisions.1d Sets threshold to 1 division.3d Sets threshold to 3 divisions.

30

Parts Counting Error LevelParts Counting Error LevelParts Counting Error LevelParts Counting Error LevelParts Counting Error Level

The parts counting error level is based onthe resolution (readability) of the particularmodel balance and sample weight. Theadjacent table lists error levels that youcan choose from.

To view, change or disable the parts count-ing error level:

1. Access the PCErr submenu.


ting.



setting, when released, PCErr will be

displayed again.

ERROR LEVELSERROR LEVELSERROR LEVELSERROR LEVELSERROR LEVELS

OFFOFFOFFOFFOFF Disables error level limits.Disables error level limits.Disables error level limits.Disables error level limits.Disables error level limits.

1 % ±1 % acceptable error.

2.5 % ±2.5 % acceptable error.

5 % ±5.0 % acceptable error.

31

TIMER SETTINGSTIMER SETTINGSTIMER SETTINGSTIMER SETTINGSTIMER SETTINGS

OFFOFFOFFOFFOFF Disables feature.Disables feature.Disables feature.Disables feature.Disables feature.

60 Turns off in 60 seconds.



Auto OffAuto OffAuto OffAuto OffAuto Off

Auto Off permits the selection of eitherOFF, 60 seconds, 120 seconds or 180seconds. When this function is selected,the balance will turn off if it is idle for theselected period of time (60, 120 or 180seconds). This feature is especially usefulwhen the balance is operated from inter-nal batteries.

To view, change or disable the auto offfeature:

1. Access the A. Off submenu.


ting.



setting. When is released,

A. Off will be displayed again.

EndEndEndEndEnd

You must use End to exit the Setup menu.Changes you make in the Setup menuChanges you make in the Setup menuChanges you make in the Setup menuChanges you make in the Setup menuChanges you make in the Setup menuare only stored in memory if you useare only stored in memory if you useare only stored in memory if you useare only stored in memory if you useare only stored in memory if you useEnd.End.End.End.End.

To exit the Setup menu and store your

settings, press when END is dis-

played. When is released, the bal-

ance will be returned to normal weighing

operations.

32

CALIBRATION LOCK-OUT PROTECTIONCALIBRATION LOCK-OUT PROTECTIONCALIBRATION LOCK-OUT PROTECTIONCALIBRATION LOCK-OUT PROTECTIONCALIBRATION LOCK-OUT PROTECTION

Access to the Calibration menu can be disabled using the lock out switch located onthe right side of the balance.

1. Turn the balance off and unplug the power cord.

2. Locate the access hole on the right side of the balance where the switch is located

and remove the plug from the hole.

3. Using a small screwdriver, slide the switch to the front of the balance for LOCKED

or towards the rear of the balance for UNLOCKED.

4. Replace the plug in the access hole.

5. Plug in the power cord and turn on the balance.

LOCK OUTSWITCH

UNLOCK

LOCK

LOCK OUT SWITCH ACCESS HOLE

33

TROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTING

SYMPTOM

No Display

LO BAT Indicator

- - -

Incorrect WeightReading

Calibration Proce-dure does not work

Unable to displayweight in a particu-lar weighing unit

Unable to accessC. UNIT in Setupmenu to enterConversion Factor

Balance won't storeselections made inSetup menu

PROBABLE CAUSE

Power Adapter notconnected.

Batteries are dead.

Batteries are weak.

Underweight Indicator,platform may be off ofbalance.

Balance was notrezeroed before weigh-ing.

Balance has not beenproperly calibrated.

Incorrect weights beingused.

Weighing unit notenabled in Setup menu.

Custom Units ( ● ) notenabled in Setup menu,or not set to USR.

END selection was notused to exit Setup menu.

REMEDY

Connect Power Adapter.

Replace batteries.

Replace batteries.

Replace platform.

Press ON TARE with noweight on the platform,then weigh item.

Recalibrate correctly.

Use correct weights.

Use Unit Selection sub-menu to set desired unitsON (see Setup menu).

Use Unit Selection sub-menu to set Custom Units( ● ) to USR.

You MUST use END toexit Setup menu and saveselections.

CARE AND MAINTENANCECARE AND MAINTENANCECARE AND MAINTENANCECARE AND MAINTENANCECARE AND MAINTENANCE

To keep the balance operating properly, the housing and platform should be keptclean and free from foreign material. If necessary, a cloth dampened with a milddetergent may be used. Keep calibration masses in a safe dry place.

Unplug the AC Adapter when not in use. For long term storage, remove the batteries.

34

SERVICE INFORMATIONSERVICE INFORMATIONSERVICE INFORMATIONSERVICE INFORMATIONSERVICE INFORMATION

If the Troubleshooting section does not resolve or describe your problem, you will needto contact an authorized Ohaus Service Agent. For Service assistance in the UnitedStates, please call Ohaus Corporation toll-free at (800) 526-0659, an Ohaus ProductService Specialist will be available to help you.

NOTE:NOTE:NOTE:NOTE:NOTE: In New Jersey call (201) 377-9000.

Error CodesError CodesError CodesError CodesError Codes

The following list describes the various error codes which can appear on the displayand the suggested remedy.

Display DescriptionDisplay DescriptionDisplay DescriptionDisplay DescriptionDisplay Description

Err 0Err 0Err 0Err 0Err 0 This indicates a hardware error causing an invalid checksum on calibrationdata. The balance may need recalibration, particularly linearity calibration. Ifthe error persists after recalibration, the balance must be serviced.

Err 1Err 1Err 1Err 1Err 1 Sample being weighed exceeds the capacity of the balance. If error occurswhen the sample is within the balance capacity, balance may be incorrectlycalibrated. An underload such as the platform off of the balance could alsodisplay Err1. Recalibrate the balance.

Err 2Err 2Err 2Err 2Err 2 This indicates a hardware error causing an internal weight signal which is toohigh. The balance must be serviced.

Err 3Err 3Err 3Err 3Err 3 This indicates a hardware error causing an internal weight signal which is toolow. The balance must be serviced.

Error 3 appears on the display as "- - - ". It will be sent over the RS232 interfaceas "Err3" if that accessory is installed.

Err 4Err 4Err 4Err 4Err 4 Incorrect or no calibration weight used when performing calibration procedure.Error will flash momentarily, then balance will use previous calibration data.Recalibrate correctly.

Err 5Err 5Err 5Err 5Err 5 Value is too large to display; exceeds 99999 counts. Possibly caused by aninvalid custom unit conversion factor.

Err 6Err 6Err 6Err 6Err 6 Custom unit conversion factor exponent and LSD choices have placed thedecimal point off of the display. The error flashes momentarily and the newconversion factor will not be accepted.

Err 7Err 7Err 7Err 7Err 7 Power-on load error caused by load on platform during power-up. The displayappears for three seconds and the balance will use previously stored calibrationdata. Remove load from platform and reapply power.

Err 9Err 9Err 9Err 9Err 9 Internal data error. Return balance for servicing.

35

PARTS INFORMATIONPARTS INFORMATIONPARTS INFORMATIONPARTS INFORMATIONPARTS INFORMATION

If you require replacement parts or would like to purchase accessories, please callOhaus Corporation toll-free at (800) 526-0659, an Ohaus Product Parts Specialist willbe available to help you.

REPLACEMENT PARTSREPLACEMENT PARTSREPLACEMENT PARTSREPLACEMENT PARTSREPLACEMENT PARTS

OHAUSPart Number

Span Calibration Masses:10g (CT10) 51014-05200g (CT200) 51025-06300g (CT600) 51035-05

AC Adapters:100/120 V ac US Plug 90524-77230/240 V ac European Plug 90524-75230/240 V ac UK Plug 90524-79240 V ac Australian Plug 90524-76

Platforms:1.75" dia. (CT10) 76680-114" dia. (CT200) 77521-004" dia. (CT200V) 77576-014.75" dia. (CT600) 77261-014.75" dia. (CT600V) 77577-014.75" x 6.5" (CT1200) 77467-02

Draft Shield - (CT10) 76681-01

Scoop - (CT200, CT600, CT1200) 4" x 3-1/2", black 4590-30

Gem Cup - (CT10) 76684-00

Antistatic Towelettes - (CT10 and CT200) 76685-00

Weigh Below Hook 5227-04

36

SECURITYSECURITYSECURITYSECURITYSECURITY

The balance can be secured to a stationary object using the Security Locking CableAccessory. The locking cable is equipped with a fastener which must be inserted inthe plugged hole in the back of the balance. The cable can be passed through thefastener and secured to a stationary object.

OHAUSPart Number

RS232 Interface 77172-01

Security Locking Cable 76288-00

Span Calibration Mass Sets for CT1200 and CT6000CT1200 - set includes one 1000g weight 76527-02CT6000 - set includes one 1000g and one 2000g Mass 76527-00

Linearity Calibration Masses:CT10 5g 53053-00CT200 100g 51015-05CT600 300g (use with 300g span mass 51035-05

provided to make 600g.)CT1200 500g (1000g span mass also required) 51055-06CT6000 2000g - 2 required (1000g and 2000g span 51026-02

masses also required)

Scoops:4" x 3-1/2", gold 4590-00

4" x 3-1/2", aluminum 4590-10

1-1/2" x 2", aluminum 5076-00

2-1/4" x 3", gold 5077-00

2-1/4" x 3", black 5077-01

12" x 6", Stainless Steel, footed, (tare 190g), for CT6000 1078-03

12" x 6", Polypropylene, footed, (tare 125g), for CT6000 1101-20

Vinyl Carrying Case (used with original foam packing) 76525-02Deluxe Hard Carrying Case 77256-01

ACCESSORIESACCESSORIESACCESSORIESACCESSORIESACCESSORIES

37

MODELMODELMODELMODELMODEL CT10 CT10 CT10 CT10 CT10 CT200CT200CT200CT200CT200 CT600CT600CT600CT600CT600 CT1200CT1200CT1200CT1200CT1200 CT6000CT6000CT6000CT6000CT6000

Capacity x Readability

grams (g) 10 x 0.002 202 x 0.01 602 x 0.1 1210 x 0.1 6010 x 0.5

ounces (oz) 0.35 x 0.0001 7.1 x 0.0005 21.2 x 0.005 42.6 x 0.005 212 x 0.02

ounces troy (oz t) 0.32 x 0.0001 6.5 x 0.0005 19.3 x 0.005 38.9 x 0.005 196 x 0.02

pennyweight (dwt) 6.4 x 0.002 130 x 0.01 387 x 0.1 778 x 0.1 3900 x 0.5

carats (ct) 50 x 0.01 999 x 0.05 3010 x 0.5 6050 x 0.5 30000 x 5

pounds (lb) 0.44 x 0.0001 1.32 x 0.0002 2.6 x 0.0002 13.4 x 0.002

HK taels 0.2671/0.0001 5.396/0.0005 16.08/0.005 32.32/0.005 160.3/0.02

Singapore taels 0.2645/0.0001 5.344/0.0005 15.92/0.005 32.01/0.005 158.7/0.02

Taiwan taels 0.2666/0.0001 5.386/0.0005 16.05/0.005 32.26/0.005 160.0/0.02

Parts counting Standard

Custom unit Standard

Repeatability (std. dev.) (g) 0.002 0.01 0.07 0.1 0.5

Linearity (g) ±0.002 ±0.01 ±0.1 ±0.1 ±0.5

Tare range To capacity by subtraction

Over range capacity Capacity plus 9d

Stabilization time (Sec.) 3 3 2.5 2.5 2.5

Sensitivity drift (%/°C) ±0.005 ±0.003 ±0.01 ±0.003 ±0.005

Zero point drift (g/°C) ±0.002 ±0.02 ±0.2 ±0.2 ±1

Shift accuracy(1/2 capacity, 1/2 distance) (g) ±0.002 ±0.01 ±0.1 ±0.1 ±0.5

Operating temperature 50° to 104°F/ 10° to 40°C

Calibration Auto calibration

Power requirements AC adapter (supplied with balance); 100, 120, 220, 240 V ac, 50/60 Hz or 8 AA Batteries (not included)

Typical battery life 50 hours (without optional RS232 accessory)

Display (in/cm) LCD (0.5/1.3 high)

Platform Size (in/cm) 1.75/4.4 dia. 4/10.2 dia. 4.75/12.1dia. 4.75 x 6.5/ 4.75 x 6.5/12.1 x 16.5 12.1 x 16.5

Dimensions(W x H x D) (in/cm) 7.0 x 2.5 x 7.7/17.8 x 6.3 x 19.6

Net weight (lb/kg) 2/0.9 1.5/0.7 1.7/0.8 2.3/1 2.3/1

Shipping weight (lb/kg) 3/2 4/2 4/2 4/2 4/2

SPECIFICATIONSSPECIFICATIONSSPECIFICATIONSSPECIFICATIONSSPECIFICATIONS

38

LIMITED WARRANTYLIMITED WARRANTYLIMITED WARRANTYLIMITED WARRANTYLIMITED WARRANTY

Ohaus products are warranted against defects in materials andworkmanship from the date of delivery through the duration of thewarranty period. During the warranty period Ohaus will repair, or, at itsoption, replace any component(s) that proves to be defective at nocharge, provided that the product is returned, freight prepaid, toOhaus.

This warranty does not apply if the product has been damaged byaccident or misuse, exposed to radioactive or corrosive materials, hasforeign material penetrating to the inside of the product, or as a resultof service or modification by other than Ohaus. In lieu of a properlyreturned warranty registration card, the warranty period shall begin onthe date of shipment to the authorized dealer. No other express orimplied warranty is given by Ohaus Corporation. Ohaus Corporationshall not be liable for any consequential damages.

As warranty legislation differs from state to state and country tocountry, please contact Ohaus or your local Ohaus dealer for furtherdetails.

CT Portable Advanced Electronic Balances - MAssetRecovery · Ohaus Corporation 29 Hanover Road ......

Documents

Transcript of CT Portable Advanced Electronic Balances - MAssetRecovery · Ohaus Corporation 29 Hanover Road ......