Ohaus ANALYTICAL Standard, AS60, AS120, AS260D, AS200 User Manual

Ohaus Corporation

29 Hanover Road Florham Park NJ 07932-0900

ANALYTICAL Electronic Balances AS Series

Standard

Instruction Manual

NOTE:NOTE:

NOTE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH

NOTE:NOTE:

THE LIMITS FOR A CLASS A DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES.

THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT. THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY AND, IF NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.

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

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

Unauthorized changes or modifications to this equipment are not permitted.

2

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

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

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

UNPACKING ........................................................................................................ 6

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

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

Draft Shield and Spill Ring ............................................................................ 7

Pan ................................................................................................................ 8

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

Leveling the Balance ..................................................................................... 8

OPERATION ........................................................................................................ 9

Turning the Balance ON................................................................................ 9

Warm Up ....................................................................................................... 9

TM

Moveable FineRange

Checking Calibration ................................................................................... 10

Weighing .................................................................................................... 10

Zero/Tare .................................................................................................... 11

USING MENUS TO CONFIGURE THE BALANCE ........................................... 12

CALIBRATION MENU ........................................................................................ 13

Calibration Menu Protection ........................................................................ 13

Calibration Weights ..................................................................................... 13

Span Calibration.......................................................................................... 14

Linearity Calibration .................................................................................... 15

End .............................................................................................................. 16

USER MENU ...................................................................................................... 17

User Menu Protection ................................................................................. 17

Reset to Factory Defaults............................................................................ 18

Averaging Level .......................................................................................... 19

Stability Range ............................................................................................ 20

Auto-Zero .................................................................................................... 20

End ............................................................................................................. 21

Model (AS260D) ...................................................... 9

3

SETUP MENU .................................................................................................... 22

Setup Menu Protection................................................................................ 22

Type Approved Balance .............................................................................. 23

Lockswitch................................................................................................... 24

End .............................................................................................................. 25

MENU LOCK-OUT PROTECTION..................................................................... 26

TYPE APPROVED BALANCE SEALING........................................................... 27

CARE AND MAINTENANCE.............................................................................. 28

TROUBLESHOOTING ....................................................................................... 28

Error Codes ................................................................................................. 29

SERVICE INFORMATION ................................................................................. 30

SPECIFICATIONS ............................................................................................. 31

PARTS INFORMATION ..................................................................................... 32

REPLACEMENT PARTS ................................................................................... 32

LIMITED WARRANTY........................................................................................ 33

4

INTRODUCTION

This manual covers installation, operation and troubleshooting for the Ohaus Analytical Standard balances, Models AS60, AS120, AS200 and AS260D. Type approved Analytical Standard balances, Models AS60E, AS120E and AS200E are setup to conform to OIML, EC and U.S. regulations. To insure proper operation of the balance, please read this manual completely.

DESCRIPTIONDESCRIPTION

DESCRIPTION

DESCRIPTIONDESCRIPTION

Ohaus Analytical Standard series balances are precision weighing instruments, designed to provide years of service with virtually no maintenance. The Analytical Standard series is constructed using a die-cast aluminum base finished with a durable epoxy powder paint which is resistant to commonly used acids, contains a one piece solid-state precision electronics PC board and a seven digit LCD display which is 0.6 inches in height. All Analytical Standard series electronic balances are factory set to measure in grams. To prevent measurements from being affected by air currents, a draft shield is mounted to the balance. A stainless-steel spill ring is removable for cleaning in the event of accidental spills. Power is supplied through an AC Adapter which is available in five configurations for world-wide usage. Accessories include: an RS232 interface kit which allows printing of results through an external computer, an RS232 interface cable with a print switch, a security device and calibration weights.

ANALYTICAL

STANDARD

5

Balance

UNPACKINGUNPACKING

UNPACKING

UNPACKINGUNPACKING

Your Analytical Standard balance was shipped with the following items:

• a pan

• an AC power adapter

• a draft shield and spill ring

• this instruction manual

• your warranty card

It is recommended to save the carton and packing material for storing, transporting the balance or returning it for service.

Analytical Standard

Balance

AC Adapter

Pan

Draft Shield and

Spill Ring

6

INSTALLATIONINSTALLATION

INSTALLATION

INSTALLATIONINSTALLATION

EnvironmentEnvironment

Environment

EnvironmentEnvironment

The balance should always be used in an environment which is free from excessive air currents, corrosives, vibration, and temperature or humidity extremes. These factors will affect displayed weight readings.

DO NOT install 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.

• Near magnetic fields or equipment that generates magnetic fields.

• On an unlevel work surface.

Draft Shield and Spill RingDraft Shield and Spill Ring

Draft Shield and Spill Ring

Draft Shield and Spill RingDraft Shield and Spill Ring

To install the draft shield and spill ring:

1. Position the draft shield on top of the

balance as shown (approximately 30

degrees counterclockwise from the

base of the balance).

2. Looking down through the top of the

shield, line up the hole in the bottom

of the shield with the hole in the bal-

ance weighing mechanism.

3. Put the draft shield down, fitting the

holes, and turn the shield clockwise

until it locks into place.

4. Make sure that the draft shield is

firmly locked in place.

5. Install the stainless steel spill ring

inside of the draft shield with the

raised surface facing up and cor-

rectly oriented.

CAUTION:CAUTION:

CAUTION:

CAUTION:CAUTION:

Never

remove the draft shield with

the pan in place.

7

PanPan

Pan

PanPan

Place the pan into the hole in the weighing mechanism.

SPILL RING

AC AdapterAC Adapter

AC Adapter

AC AdapterAC Adapter

Plug the molded connector of the AC Adapter into the receptacle at the rear of the balance. Plug the AC Adapter into a convenient ac outlet. When power is applied to the balance, it will begin a 60 second self test cycle. During this time, if the balance is turned ON, the display will count down from 60 and display the word CHEC.

PAN

Leveling the BalanceLeveling the Balance

Leveling the Balance

Leveling the BalanceLeveling the Balance

The balance is equipped with a level indicator on the rear and two adjustable leveling feet. Adjust the leveling feet until the bubble appears in the center circle of the indicator.

LEVELING FEET (2)

AC ADAPTER RECEPTACLE

LEVEL INDICATOR

8

OPERATIONOPERATION

OPERATION

OPERATIONOPERATION

Turning the Balance ONTurning the Balance ON

Turning the Balance ON

Turning the Balance ONTurning the Balance ON

With no load on the pan, switch the bal-

ance ON by pressing switched ON, all segments of the display

should be on as shown in the illustration.

This display check will be displayed briefly, then the model number of the balance followed by a software revision number.

Warm UpWarm Up

Warm Up

Warm UpWarm Up

Before initally using the balance, allow time for it to adjust to changes in environment. The balance need only be plugged in to warm up. Recommended warm up period is 30 minutes.

Moveable FineRange Moveable FineRange

Moveable FineRange

Moveable FineRange Moveable FineRange

The AS260D offers both a fine range (lower capacity/higher readability) and a coarse range (higher capacity/lower readability). When first turned on, the balance is in the fine range. It remains in this range until the weight on the pan exceeds the fine range capacity. When weight on the pan is greater than the fine range capacity, the balance switches to the coarse range.

. When first



Model (AS260D) Model (AS260D)



Model (AS260D)



Model (AS260D) Model (AS260D)

For balance with Moveable FineRange, please note: If the weight of the object on the platform exceeds the limit of the Moveable

FineRange, the balance will automatically change to the coarse range until either:

1. The load (excluding tare) is reduced to below the limit of the fine range.

-OR--OR-

-OR-

-OR--OR-

2.

range.

is momentarily pressed, which tares the balance and reactivates the fine

9

Checking CalibrationChecking Calibration

Checking Calibration

Checking CalibrationChecking Calibration

Before using the balance, it should be calibrated. The balance has been calibrated before shipment, however, calibration is influenced by factors such as:

• Variations in the earths gravitational field at different latitudes of the world.

• Rough handling.

• Changes in work location.

• Height above sea level.

• Environmental conditions.

To check the balance’s calibration, place a known mass on the center of the pan and read the displayed weight.

If the displayed weight differs from the known mass by more than acceptable limits, refer to the Calibration Menu and the Specifications at the rear of the manual.

WeighingWeighing

Weighing

WeighingWeighing

1. Press to zero the display.

2. Place the object(s) or material to be weighed on the pan.

STABILITY

INDICATOR

3. Wait for the stability indicator to appear before reading the weight.

10

Zero/Tare Zero/Tare

Zero/Tare

Zero/Tare Zero/Tare

When weighing material or objects that must be held in a container, O/T enables you to store the container weight in the balance’s memory, separate from the weight of the material in the container.

1. Place an empty container on the pan. Its weight will be displayed.

2. Press .

The display will show zero and the container’s weight will be stored in memory.

3. Add material to the container. As material is added, its net weight will be displayed.

4. Removing the container and material from the pan will cause the balance to display the container’s weight as a negative number.

The weight remains in balance memory

until is pressed again.

MODE

11

USING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCE

USING MENUS TO CONFIGURE THE BALANCE

USING MENUS TO CONFIGURE THE BALANCEUSING MENUS TO CONFIGURE THE BALANCE

Analytical Standard balances contain four display menus which enable you to calibrate and configure the balance for your specific operating requirements.

Calibration Menu:Calibration Menu:

Calibration Menu: Used to calibrate the balance for span or linearity.

Calibration Menu:Calibration Menu: User Menu:User Menu:

User Menu: Used to adapt the balance to environmental conditions.

User Menu:User Menu: Setup Menu:Setup Menu:

Setup Menu: Used to enable or disable different balance features.

Setup Menu:Setup Menu: Print Menu:Print Menu:

Print Menu: Used to configure the RS232 Interface.

Print Menu:Print Menu:

Functions not allowed on verified balances have shaded backgrounds.

CAL

SPAN LIN END

USER

RESET

Yes, No

AL

11

0,

1, 2, 3

11

STB

.5d,

1d1d

1d, 2d, 5d

1d1d

SETUP

LFT

On,

LOCSW

OffOff

Off

OffOff

Calibration User Setup Print

PRINT

NOTE: PRINT menu appears only when RS232 option is installed.

End

AUTO-0

.5d ,.5d ,

OFF ,

.5d , 1d, 3d

.5d ,.5d ,

END

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

Original factory default settings are shown in boldface type. Use these buttons to step through menus and select submenus:

next selection

select

displayed item

12

CALIBRATION MENUCALIBRATION MENU

CALIBRATION MENU

CALIBRATION MENUCALIBRATION MENU

Analytical Standard balances can be calibrated in two ways: Span calibration or Linearity calibration. Span calibration resets the balance’s weighing range using two weight values: zero and a weight value at or near the balance’s capacity. Linearity calibration minimizes deviation between actual and displayed weights within the balance’s weighing range. Three weight values are used: zero, a weight value within the balances weighing range, and a weight value at or near the balance’s specified capacity. The following table shows the sequence in which submenus appear on the Calibration menu.

CALIBRATION MENU TABLECALIBRATION MENU TABLE

CALIBRATION MENU TABLE

CALIBRATION MENU TABLECALIBRATION MENU TABLE

Selects span calibration.

Selects linearity calibration.

Used to exit the Calibration menu.

Calibration Menu ProtectionCalibration Menu Protection

Calibration Menu Protection

Calibration Menu ProtectionCalibration Menu Protection

Calibration may be locked out to prevent unauthorized personnel from changing calibration. To lock out calibration menu, refer to the section titled Menu Lock-Out Protection.

NOTENOTE

NOTE: If calibration has been locked out,

NOTENOTE

you will not be able to access it.

Calibration MassesCalibration Masses

Calibration Masses

Calibration MassesCalibration Masses

Before beginning calibration, make sure masses are on hand. If you begin calibration and realize masses are not available, either turn the balance off, or go through the procedure without masses. The balance will use previously stored calibration data. Calibration should be performed as necessary to ensure accurate weighing. Masses required to perform the procedures are listed in the adjacent table.

CALIBRATION MASSESCALIBRATION MASSES

CALIBRATION MASSES

CALIBRATION MASSESCALIBRATION MASSES

LINEARITYLINEARITY

LINEARITY

MODELMODEL

MODEL

MODELMODEL

LINEARITYLINEARITY

MASSESMASSES

MASSES

MASSESMASSES

AS60 20g, 50g 50g AS120 50g, 100g 100g AS260D 100g, 200g 200g AS200 100g, 200g 200g

Masses must meet or exceed ASTM Class 1 Tolerance. Calibration masses are available as accessories.

13

SPAN ONLYSPAN ONLY

SPAN ONLY

SPAN ONLYSPAN ONLY

MASSMASS

MASS

MASSMASS

Span CalibrationSpan Calibration

Span Calibration

Span CalibrationSpan Calibration

1. Press and hold until CAL is

displayed, then release it. Balance will display SPAN.

2. Press to start the Span calibra-

tion procedure.

3. When is released, C 0g will

be displayed indicating that no weight should be on the pan.

4. Press . The display will show

-C- momentarily, followed by the value of the weight which must be placed on the pan. Do not disturb the balance when -C- is displayed. Disturbances will result in improper calibration.

5. Place the required weight on the pan

and press . The display will

show -C- momentarily while the balance recalibrates.

6. When the weight on the pan is displayed along with the current unit indicator, the balance is recalibrated.

14

Linearity CalibrationLinearity Calibration

Linearity Calibration

Linearity CalibrationLinearity Calibration

1. Press and hold until CAL is displayed, then release it. Balance

will display SPAN.

2. Press show LIN.

3. Press Calibration Procedure.

4. When is released, C 0g will be displayed, indicating that no weight

should be in the pan.

5. Press

-C- momentarily, followed by the value of the weight which must be placed on the pan. Do not disturb the balance when -C- is displayed. Disturbances will result in improper calibra-

and the display will

to start the Linearity

. The display will show

tion.

6. Place the required weight on the pan.

15

7. Press . The display will show

-C- momentarily, then C followed by the next weight to be placed on the pan.

8. Place the required weight on the pan,

then press show -C- momentarily, while the bal-

ance recalibrates.

9. When the weight on the pan is displayed along with the current indicator, the balance is recalibrated.

EndEnd

End

EndEnd

If you have entered the Calibration menu and do not wish to calibrate the balance, use END to return to normal weighing operations.

Repeately press until End is displayed.

Press , when released, the balance

. The display will

will returned to normal weighing operations.

16

USER MENUUSER MENU

USER MENU

USER MENUUSER MENU

The User menu is used to adapt the balance to environmental conditions. It contains submenus which enable you to reset the balance to factory default settings or to select specific range settings. Access to the User menu can be disabled using the Lock out switch. The following table shows the sequence in which submenus appear on the User menu.

USER MENU TABLEUSER MENU TABLE

USER MENU TABLE

USER MENU TABLEUSER MENU TABLE

Sets all submenus below to original factory default settings. Reset does not appear if menu has been locked out.

Specifies the averaging level. Specifies the desired stability range. Sets Auto-Zero threshold. Used to exit the Setup menu and store

your selections.

User Menu ProtectionUser Menu Protection

User Menu Protection

User Menu ProtectionUser Menu Protection

The User menu may be locked out to prevent unauthorized personnel from changing the settings. To lock out the User menu, refer to the section titled Menu Lock-Out Protection.

NOTENOTE

NOTE: If -SAFE- is displayed, the User

NOTENOTE

menu has been locked out. Settings may be viewed but not changed. See the Menu Lock-Out Protection section to enable it for making changes.

To access the User menu, press and hold

until USER is displayed, then re-

lease it.

17

To access a submenu:

1. Repeatedly press

until the de-

sired submenu is displayed.

2. Press

to select the displayed

submenu.

NOTENOTE

NOTE: You must use END to store any

NOTENOTE

changes you make to the User menu.

The following sections describe each item on the User menu in detail.

Reset to Factory DefaultsReset to Factory Defaults

Reset to Factory Defaults

Reset to Factory DefaultsReset to Factory Defaults

This submenu enables you to reset all User menu selections to the factory default settings outlined in the adjacent table.

To reset to factory defaults:

1. Access the RESET submenu.

USER MENUUSER MENU

USER MENU

USER MENUUSER MENU

FACTORY DEFAULTSFACTORY DEFAULTS

FACTORY DEFAULTS

FACTORY DEFAULTSFACTORY DEFAULTS

2. Press

to change the setting.

3. Select YES to reset settings or, no to leave current settings.

4. Press

to accept the displayed

setting.

Averaging Level AL 1 Stability Range 1d Auto-Zero Tracking .5d

18

Averaging LevelAveraging Level

Averaging Level

Averaging LevelAveraging Level

Averaging level compensates for vibration or excessive air currents. During operation, the balance continually takes weight readings from the weighing cell. Successive readings are then digitally processed to achieve a stabilized display. Use this submenu to specify how much processing you need to obtain stable results.

NOTE: Averaging level does not affect balance accuracy.

AVERAGING LEVELAVERAGING LEVEL

AVERAGING LEVEL

AVERAGING LEVELAVERAGING LEVEL

AL 0 reduced stability, fastest

stabilization time

ALAL

1 normal stability, normal1 normal stability, normal

AL

1 normal stability, normal

ALAL

1 normal stability, normal1 normal stability, normal stabilization timestabilization time

stabilization time

stabilization timestabilization time

Select one of four averaging levels using the adjacent table as a guide.

To view or change the averaging level:

1. Access the AL submenu to display the current setting.

2. Press

3. Press setting.

4. When is released, AL will be displayed again and the Setup menu

will be returned.

to change the setting.

to accept the displayed

AL 2 more stability, slow stabi-

lization time

AL 3 maximum stability, slow-

est stabilization time

19

Stability RangeStability Range

Stability Range

Stability RangeStability Range

The stability range specifies how much a displayed weight may change while the stability indicator remains ON. When displayed weight changes beyond the allowable range, the stability indicator turns OFF indicating an unstable condition. Analytical Standard balances permit you to select one of four stability ranges (in divisions) as shown in the table.

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 display the current setting.

STABILITY RANGESTABILITY RANGE

STABILITY RANGE

STABILITY RANGESTABILITY RANGE

..

.5d smallest range: stability indi-

..

cator is ON only when displayed weight is within .5 divisions

1d1d

reduced rangereduced range

1d

reduced range

1d1d

reduced rangereduced range

2d normal range 5d largest range: stability indi-

cator is ON even though displayed weight changes slightly

2. Press

3. Press to accept the displayed

setting.

4. When displayed again and the Setup menu will be returned.

Auto-ZeroAuto-Zero

Auto-Zero

Auto-ZeroAuto-Zero

Auto-Zero minimizes the effects of temperature changes and shift on the zero reading. By defining a threshold level in divisions, the balance maintains the zero display until the threshold is exceeded. This submenu permits you to select one of three threshold levels, or turn the feature OFF. Auto-Zero only functions when the display reads zero.

to change the setting.

is released, Stb will be

20

To view or change the Auto-Zero setting:

1. Access the Auto-0 submenu to display the current setting.

2. Press

3. Press

setting.

4. When is released, Auto-0 will

be displayed again and the User menu will be returned.

EndEnd

End

EndEnd

You must use END to exit the User menu.

Changes you make in the User menuChanges you make in the User menu

Changes you make in the User menu

Changes you make in the User menuChanges you make in the User menu are only stored in memory if you useare only stored in memory if you use

are only stored in memory if you use

are only stored in memory if you useare only stored in memory if you use END.END.

END.

END.END.

1. To exit the User menu and store your settings, press displayed.

to change the setting.

to accept the displayed

when End is

AUTO ZEROAUTO ZERO

AUTO ZERO

AUTO ZEROAUTO ZERO

OFF turns Auto-Zero OFF

.5d.5d

sets threshold to .5 divisionssets threshold to .5 divisions

.5d

sets threshold to .5 divisions

.5d.5d

sets threshold to .5 divisionssets threshold to .5 divisions

1d sets threshold to 1 division 3d sets threshold to 3 divisions

2. When will be returned to normal weighing operations.

is released, the balance

21

SETUP MENUSETUP MENU

SETUP MENU

SETUP MENUSETUP MENU

The Setup menu enables you to retain program balance parameters once they have been set. Access to the Setup menu can be disabled using the Lock out switch. The following table shows the sequence in which submenus appear on the Setup menu.

SETUP MENU TABLE SETUP MENU TABLE

SETUP MENU TABLE

SETUP MENU TABLE SETUP MENU TABLE

Sets balance for type approved operation.

Enables individual or all menus to be locked out.

Used to exit the Setup menu and store your selections.

Setup Menu ProtectionSetup Menu Protection

Setup Menu Protection

Setup Menu ProtectionSetup Menu Protection

The Setup menu may be locked out to prevent unauthorized personnel from changing settings. To lock out the Setup menu, refer to the section titled Menu Lock-Out Protection.

NOTENOTE

NOTE: If -SAFE- is displayed, the Setup

NOTENOTE

menu has been locked out. Settings may be viewed but not changed. See the Menu Lock-Out Protection section to enable it for making changes.

To access the Setup menu, press and

hold

release it.

until SETUP is displayed, then

22

To access a submenu:

1. Repeatedly press desired submenu is displayed.

2. Press

submenu.

NOTENOTE

NOTE: You must use END to store any

NOTENOTE

changes you make to the Setup menu.

The following sections describe each item on the Setup menu in detail.

Type Approved BalanceType Approved Balance

Type Approved Balance

Type Approved BalanceType Approved Balance

This parameter can be set to ON or OFF. Selecting ON automatically sets certain parameters for type approved requirements.

1. Access the LFT submenu.

2. The display will show the current status (ON/OFF). If ON is selected, Auto-Zero Tracking will be limited to

0.5d or OFF and Lock switch default becomes Setup.

to select the displayed

until the

3. Press

4. Press to accept the status.

5. When is released, the display will show LFT.

to change the status.

23

LockswitchLockswitch

Lockswitch

LockswitchLockswitch

Lockswitch enables you to lock out one or more menu selections. Each menu can be individually locked YES, or unlocked NO. Set the appropriate balance functions, and then decide which functions of the balance are to be locked. The Calibration, User, and Setup menus can be individually locked by selecting YES for the appropriate menu, and then locked by the switch located under the right hand side of the control panel.

1. Access the LOCSW submenu. When

is released, the LOCSW

submenu is displayed.

2. To access one or more menus, press

to select the calibration menu,

-CAL- is displayed.

NOTENOTE

NOTE: Pressing changes the

NOTENOTE

selection to the other menus.

3. To select a YES or NO, press

NOTENOTE

NOTE: The switch acts as a

NOTENOTE

toggle and can select either YES or NO.

4. To confirm your selection,

press again. The display indi-

cates the last menu you were in.

.

24

5. To lock out the other menus, press

and repeat the procedure in

steps 3 and 4.

EndEnd

End

EndEnd

You must use END to exit the Setup

Changes you make in the SetupChanges you make in the Setup

menu.

Changes you make in the Setup

Changes you make in the SetupChanges you make in the Setup

menu are only stored in memory if youmenu are only stored in memory if you

menu are only stored in memory if you

menu are only stored in memory if youmenu are only stored in memory if you use END.use END.

use END.

use END.use END.

1. To exit the Setup menu and store your settings, press is displayed.

2. When will be returned to normal weighing operations.

is released, the balance

when END

25

MENU LOCK-OUT PROTECTIONMENU LOCK-OUT PROTECTION

MENU LOCK-OUT PROTECTION

MENU LOCK-OUT PROTECTIONMENU LOCK-OUT PROTECTION

Access to the Calibration, User, and Setup menus, can be disabled using the lock out switch located under the right side of the balance, near the display.

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

2. Slide the balance toward you, with the front over the edge of a table. (You can also turn the balance on its left side, but if you do, you MUST remove the pan and spill ring first!)

3. Locate hole under display where switch is located.

4. Using a small screwdriver, slide the switch forward for LOCKED or back for UNLOCKED.

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

LOCK OUT

SWITCH

UNLOCK

LOCK

26

TYPE APPROVED BALANCE SEALINGTYPE APPROVED BALANCE SEALING

TYPE APPROVED BALANCE SEALING

TYPE APPROVED BALANCE SEALINGTYPE APPROVED BALANCE SEALING

Analytical Standard Balances, Models AS60E, AS120E and AS200E may be sealed for type approved applications. Factory sealed balances include a bracket, lead seal and wire and security screw as shown in the figure below.

Type approved balances are Class I devices, consult local Weights and Measures officials to determine scaling requirements. If the balance needs to be sealed in the field, a wrench has been provided.

After the balance has been set up properly and the menus are locked out (LFT menu selection set ON), proceed as follows to seal the balance:

1. Turn OFF and unplug the balance. Remove the Draft Shield, Spill Ring and Pan.

2. Turn the balance over and locate the access hole to the lock out switch.

3. Remove the existing screw next to the access hole and discard.

4. Place the Bracket supplied over the access hole and secure with the Security Screw supplied. Tighten with the Wrench supplied.

5. Obtain the Lead Seal and wire. Pass the wire through the Security Screw and the eyelet on the Bracket as shown in the illustration.

6. Crimp the lead seal tightly. Turn the balance over and reinstall items removed.

LEAD AND WIRE SEAL

SECURITY SCREW

BRACKET

BASE OF BALANCE

27

CARE AND MAINTENANCECARE AND MAINTENANCE

CARE AND MAINTENANCE

CARE AND MAINTENANCECARE AND MAINTENANCE

To keep the balance operating properly, the housing, spill pan and pan should be kept clean and free from foreign material. If necessary, a cloth dampened with a mild detergent may be used. Keep calibration weights in a safe dry place.

TROUBLESHOOTINGTROUBLESHOOTING

TROUBLESHOOTING

TROUBLESHOOTINGTROUBLESHOOTING

SYMPTOM

Unit will not turn on.

Incorrect weight reading.

Unable to store menu settings/ changes.

RS232 interface not working (when installed).

Random segments displayed or display locks up.

Unable to change settings.

PROBABLE CAUSE(S)

Power adapter not plugged in or properly connected to balance.

Balance was not zeroed before weighing.

Balance not properly calibrated.

END not being used to exit menus.

Print menu settings not properly set up.

Cable connections. Microprocessor lock-up.

Lock switch set ON. LFT set ON.

REMEDY

Check power adapter connections.

Press with no weight on the pan, then weigh item.

Recalibrate correctly.

You MUST use END to exit menus and save settings.

Verify interface settings in Print menu correspond to those of peripheral device.

Check cable connections. Unplug the power cord, then

replug again. If condition persists, unit must be serviced.

Set Lock switch to OFF. Set LFT OFF, in LFT

applications, seal will be broken. Breaking the seal will nullify the legal application.

Unstable readings.

Error message display.

Vibration on table surface.

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Place balance on a stable surface or change averaging level.

See Error Codes Table.

Error CodesError Codes

Error Codes

Error CodesError Codes

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

Data ErrorsData Errors

Data Errors

Data ErrorsData Errors

0.0 Transient error (hardware error, probably static discharge). If error persists,

the balance must be serviced.

Zero/Tare ErrorsZero/Tare Errors

Zero/Tare Errors

Zero/Tare ErrorsZero/Tare Errors

2.0 Balance is unable to stabilize within time limit after zero/taring. Environment is

too hostile or balance needs recalibration.

Calibration ErrorsCalibration Errors

Calibration Errors

Calibration ErrorsCalibration Errors

3.0 Incorrect or no calibration weight used for calibration. Recalibrate with correct

weights.

RS232 ErrorsRS232 Errors

RS232 Errors

RS232 ErrorsRS232 Errors

4.0 Bad RS232 frame. Check RS232 menu parameters and correct.

4.4 RS232 buffer is full (if installed). May occur if no printer or computer is

connected to the interface. To clear buffer, turn balance off or enter Print menu and select END.

4.5 Function is disabled by the Lock switch.

User ErrorsUser Errors

User Errors

User ErrorsUser Errors

7.2 Number outside of display capacity.

Over-Under Load ErrorsOver-Under Load Errors

Over-Under Load Errors

Over-Under Load ErrorsOver-Under Load Errors

8.0 Hardware error causing an internal weight signal which is too low. Check if pan

or pan support is off. If not, the balance must be serviced.

8.1 Hardware error caused by an internal weight signal which is too high. Check

load on the platform which may be excessive. If error persists, the balance must be serviced.

8.2 Power-on load out of specification: Balance was turned on with load on pan or

pan off balance. No load may be on pan when turned on and pan must be in place.

8.3 Rated capacity exceeded. Remove excessive weight from pan.

8.4 Underload condition on balance. Check that the proper pan and pan support

are installed.

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Error Codes (Cont.)Error Codes (Cont.)

Error Codes (Cont.)

Error Codes (Cont.)Error Codes (Cont.)

CheckSum ErrorsCheckSum Errors

CheckSum Errors

CheckSum ErrorsCheckSum Errors

9.0 Bad factory checksum. If error persists, have the balance serviced.

9.5 Bad factory calibration checksum. If error persists, have the balance serviced.

9.6 Bad mode checksum. Turn the balance off using the front panel controls. If

the error persists, have the balance serviced.

9.7 Invalid setup data checksum. Check Setup, User and Print menu (when

RS232 is installed) settings. If possible, try to enter menus and exit using END to restore menu settings. May be caused by a faulty component, or in rare cases, a severe static charge. If error persists, balance must be serviced.

9.8 Hardware error causing invalid calibration data checksum. Balance may need

recalibration - particularly linearity calibration. If error persists, balance must be serviced.

9.9 Invalid temperature compensation checksum. Balance will work with default

temperature compensation data, however, error will occur each time balance is turned on. Have balance serviced.

SERVICE INFORMATIONSERVICE INFORMATION

SERVICE INFORMATION

SERVICE INFORMATIONSERVICE INFORMATION

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

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SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

MODELMODEL

MODEL

MODELMODEL

Capacity (g) 62 122 62/202 202 Readability (mg) 0.1 0.1 0.1/1 0.1

Weighing mode grams Repeatabilty (std. dev.) (mg) 0.1 0.1 0.1 0.1 Linearity (mg) Tare range To capacity by subtraction Stabilization time 4 seconds Sensitivity Drift (10° to 30°C) 2ppm/ °C Operating temperature 41° to 104°F/5 ° to 40°C (Non type approved)

Calibration Auto-calibration Display (in/cm) LCD (0.6/1.5 high) Power requirements AC Adapter - 100, 120, 220, 240 V ac, 50/60 Hz Platform size (in/cm) 3.5/9.0 diameter Free height above Platform (in/cm) 9.3/23.6 Dimensions (WxHxD) (in/cm) 8.3 x 14.5 x 14.5/21.1 x 36.8 x 36.8 Net Weight (lb/kg) 15/6.8 Shipping weight (lb/kg) 25/11.4

AS60 AS60

AS60

AS60 AS60

+ 0.2 + 0.2 + 0.2 + 0.2

64° to 73°F/17.5 ° to 22.5°C (Type approved)

AS120 AS120

AS120

AS120 AS120

AS260D AS260D

AS260D

AS260D AS260D

AS200 AS200

AS200

AS200 AS200

NOTE: Models AS60E, AS120E and AS200E are type approved. The E designation after the model number signifies type approved.

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PARTS INFORMATIONPARTS INFORMATION

PARTS INFORMATION

PARTS INFORMATIONPARTS INFORMATION

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

REPLACEMENT PARTSREPLACEMENT PARTS

REPLACEMENT PARTS

REPLACEMENT PARTSREPLACEMENT PARTS

Description OHAUS Part No. AC Adapters:

100 V ac 90524-11 120 V ac 90524-10 220 V ac 90524-13 240 V ac 90524-14 240 V ac Australia 90524-15

Platform - 3.5” dia. 77495-01 Draft Shield 77537-01

ACCESSORIESACCESSORIES

ACCESSORIES

ACCESSORIESACCESSORIES

Description OHAUS Part No.

RS232 Interface Kit 77018-01 Cable for RS232 Interface with 9 pin balance connector AS017-20 Cable for RS232 Interface with PRINT switch and 9 pin balance

connector AS017-25

Security Device 76288-00 Dust Cover 78121-01 Calibration Masses - ASTM Class 1 Tolerance:

20g 49024-11 50g 49054-11 100g 49015-11 200g 49025-11

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LIMITED WARRANTYLIMITED WARRANTY

LIMITED WARRANTY

LIMITED WARRANTYLIMITED WARRANTY

Ohaus products are warranted against defects in materials and workmanship from the date of delivery through the duration of the warranty period. During the warranty period Ohaus will repair, or, at its option, replace any component(s) that proves to be defective at no charge, provided that the product is returned, freight prepaid, to Ohaus.

This warranty does not apply if the product has been damaged by accident or misuse, exposed to radioactive or corrosive materials, has foreign material penetrating to the inside of the product, or as a result of service or modification by other than Ohaus. In lieu of a properly returned warranty registration card, the warranty period shall begin on the date of shipment to the authorized dealer. No other express or implied warranty is given by Ohaus Corporation. Ohaus Corporation shall not be liable for any consequential damages.

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

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Ohaus Corporation 29 Hanover Road, Florham Park, NJ 07932, USA Tel: (973) 377-9000, Fax: (973) 593-0359

With offices worldwide.

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Ohaus Corporation

29 Hanover Road Florham Park NJ 07932-0900

ANALYTICAL Electronic Balance Model AS60C

Standard

Instruction Manual

NOTE:NOTE:

NOTE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH

NOTE:NOTE:

THE LIMITS FOR A CLASS A DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES.

THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT. THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY AND, IF NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.

THIS DIGITAL APPARATUS DOES NOT EXCEED THE CLASS A LIMITS FOR RADIO NOISE EMISSIONS FROM DIGITAL APPARATUS AS SET OUT IN THE INTERFERENCE-CAUSING EQUIPMENT STANDARD ENTITLED "DIGITAL APPARATUS", ICES-003 OF THE DEPARTMENT OF COMMUNICATIONS.

CET APPAREIL NUMÉRIQUE RESPECTE LES LIMITES DE BRUITS RADIOÉLECTRIQUES APPLICABLES AUX APPAREILS NUMÉRIQUES DE CLASSE A PRESCRITES DANS LA NORMA SUR LE MATÉRIAL BROUILLEUR : "APPAREILS NUMÉRIQUES", NMB-003 ÉDICTÉE PAR LE MINISTRE DES COMMUNICATIONS.

Unauthorized changes or modifications to this equipment are not permitted.

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