Ohaus TS120S, TS400S, TS400D, TS4KS, TS4KD User Manual

Ohaus Corporation

29 Hanover Road
Florham Park NJ
07932-0900

PRECISION
Electronic Balances
TS Series

Standard

Instruction Manual

NOTE:NOTE:

NOTE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO

NOTE:NOTE:

COMPLY WITH 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 ................................................................................................... 7

Pan and Pan Support .................................................................................... 8

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

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

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

Stabilization ................................................................................................... 9

Auto Range Models....................................................................................... 9

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

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

Taring .......................................................................................................... 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

3

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

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

Unit Selection .............................................................................................. 23

Lock Switch ................................................................................................. 24

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

MENU LOCK-OUT PROTECTION..................................................................... 25

CARE AND MAINTENANCE.............................................................................. 26

TROUBLESHOOTING ....................................................................................... 26

Error Codes................................................................................................. 27

SERVICE INFORMATION ................................................................................. 28

SPECIFICATIONS ............................................................................................. 29

PARTS INFORMATION ..................................................................................... 30

REPLACEMENT PARTS ................................................................................... 30

ACCESSORIES ................................................................................................. 30

LIMITED WARRANTY........................................................................................ 31

4

INTRODUCTION

This manual covers installation, operation and troubleshooting for the Ohaus Precision
Standard balances, Models TS120, TS200, TS400, TS400D, TS600, TS2K, TS4K and
TS4KD. To insure proper operation of the balance, please read this manual completely.

DESCRIPTIONDESCRIPTION

DESCRIPTION

DESCRIPTIONDESCRIPTION

The Ohaus Precision Standard series balances are precision weighing instruments,
designed to provide years of service with virtually no maintenance. The Precision
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, a seven digit LCD display which is 0.6 inches
in height. All Precision Standard series balances are factory set to measure in grams.
Each balance operates through a series of menus which enable precise calibration and
linearity along with various other parameters which enhances operation. A built in lock
switch prevents preset settings from being changed. To prevent measurements from
being affected by air currents, a draft shield is used on Models TS120, TS200 and
TS400D balances. Power is supplied through an AC adapter which is available in five
voltages 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, weigh below hook, security device and calibration weights.

PRECISION

Standard

5

Balance

UNPACKINGUNPACKING

UNPACKING

UNPACKINGUNPACKING

Your Precision Standard balance was shipped with the following items:

• a pan

• a pan support

• an AC power adapter

• a draft shield (TS120, TS200 and TS400D only)

includes draft shield and snap clamp

• 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.

Precision Standard

Balance

Round Pan

(Round pan and support
for Models TS120,
TS200, TS400, TS600,
and TS400D)

6

Square Pan

Pan SupportAC Adapter Pan Support

(Square pan and support for
Models TS2K, TS4K and
TS4KD)

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 (TS120, TS200 and TS400D)Draft Shield (TS120, TS200 and TS400D)

Draft Shield (TS120, TS200 and TS400D)

Draft Shield (TS120, TS200 and TS400D)Draft Shield (TS120, TS200 and TS400D)

To install the draft shield:

1. Position the draft shield on top of
the balance as shown.
Make sure the rib at the
front of the draft shield
base butts up against the
raised lip of the display
panel.

2. The snap clamp should be ori­ented so that the double clip
is toward the front of the
balance.

Insert the double clip of the
snap clamp into the opening
in the draft shield base, and clip
the draft shield base to the balance.
Press the rear clip of the snap clamp
into place.

Position rib up against
display panel.

7

Pan and Pan SupportPan and Pan Support

Pan and Pan Support

Pan and Pan SupportPan and Pan Support

Square PanSquare Pan

Square Pan

Square PanSquare Pan

Insert the pan support into the hole in the
weighing mechanism as shown in the il­lustration. Make sure the hole in the pan
support faces the rear of the balance.
Once installed, the pan support should not
rotate.

The pan has a guide pin which protrudes
from the bottom. Place the pan on the
support making sure the guide pin is in­serted in the hole in the pan support.

Round PanRound Pan

Round Pan

Round PanRound Pan

Insert the pan support into the hole in the
weighing mechanism.

PAN

SUPPORT

PAN

SUPPORT

Place the pan on the support.

AC AdapterAC Adapter

AC Adapter

AC AdapterAC Adapter

Plug the molded connector of the adapter
into the receptacle at the rear of the bal­ance. Plug the adapter into a convenient
AC outlet. When power is applied to the
balance, it will begin a self test cycle.
During this time, the display will count
down from 10 and display the word CHEC.

AC ADAPTER

RECEPTACLE

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, turn the balance
ON by pressing the ON TARE button.
When first 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 short countdown. The dis­play will momentarily blank and then indi­cate zero. All of the displays shown at the
right only appear during initial power-up.

StabilizationStabilization

Stabilization

StabilizationStabilization

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 thirty minutes.

Auto Range ModelsAuto Range Models

Auto Range Models

Auto Range ModelsAuto Range Models
(TS400D and TS4KD)(TS400D and TS4KD)

(TS400D and TS4KD)

(TS400D and TS4KD)(TS400D and TS4KD)

•

•

•

Auto range balances offer 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.

If weight on the pan falls back to within the
fine range capacity, coarse range read­ability remains in effect until you tare the
balance with no weight on the pan.

9

Checking CalibrationChecking Calibration

Checking Calibration

Checking CalibrationChecking Calibration

Before using the balance, calibration
should be checked. The balance has been
calibrated before shipment, however, it
could be 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.

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 weight by more than acceptable
limits, refer to the Calibration Menu and
the Specifications at the rear of the manual.

WeighingWeighing

Weighing

WeighingWeighing

STABILITY

INDICATOR

ONON

ON

1. Press to rezero the display.

ONON

TARETARE

TARE

TARETARE

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

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

10

TaringTaring

Taring

TaringTaring

When weighing material or objects that
must be held in a container, taring 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.

ONON

ON

2. Press

ONON

TARETARE

TARE

TARETARE

.

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.

Tared weight remains in balance memory

ONON

ON

ONON

TARETARE

is pressed again.

TARE

until

TARETARE

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

Precision 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 MenuUser Menu

User Menu: Used to adapt balance to environmental condtions.

User MenuUser Menu
Setup Menu:Setup Menu:

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

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

Print Menu: Used to configure the RS232 interface.

Print Menu:Print Menu:

CAL

SPAN
LIN

END

USER

RESET
AL

0,

STB

.5d,

AUTO- 0

OFF,

END

11

1, 2, 3

11

1d1d

1d, 2d, 5d

1d1d

.5d.5d

.5d, 1d,3d

.5d.5d

SETUP

SEL

g, dwt, ct, oz, ozt, GN,
taels 1,2,3, mommes,
lb, lb:oz

Sr

LOCSW

Calibration
User
Setup
Print

PRINT

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

End

END

ONON

ON

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

ONON

TARETARE

TARE

TARETARE

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

OFFOFF

OFF

OFFOFF

MODEMODE

MODE

MODEMODE

next select

selection displayed item

ONON

ON

ONON

TARETARE

TARE

TARETARE

12

CALIBRATION MENUCALIBRATION MENU

CALIBRATION MENU

CALIBRATION MENUCALIBRATION MENU

Precision 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

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

NOTENOTE

NOTE: If calibration has been locked out,

NOTENOTE

you will not be able to access it.

Calibration WeightsCalibration Weights

Calibration Weights

Calibration WeightsCalibration Weights

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

CALIBRATION WEIGHTSCALIBRATION WEIGHTS

CALIBRATION WEIGHTS

CALIBRATION WEIGHTSCALIBRATION WEIGHTS

LINEARITYLINEARITY

LINEARITY

MODELMODEL

MODEL

MODELMODEL

LINEARITYLINEARITY

WEIGHTSWEIGHTS

WEIGHTS

WEIGHTSWEIGHTS

TS120 50g, 100g 100g
TS200 100g, 200g 200g
TS400 200g, 400g 400g
TS400D 50g, 400g 400g
TS600 200g, 500g 500g
TS4K 2kg, 4kg 4kg
TS2K 1kg, 2kg 2kg
TS4KD 500g, 4kg 4kg

It is recommended that masses must
meet or exceed ASTM Class 1 Toler­ance. Calibration masses are available
as accessories.

13

SPAN ONLYSPAN ONLY

SPAN ONLY

SPAN ONLYSPAN ONLY

WEIGHTWEIGHT

WEIGHT

WEIGHTWEIGHT

Span CalibrationSpan Calibration

Span Calibration

Span CalibrationSpan Calibration

ONON

ON

1. Press and hold until CAL is

ONON

TARETARE

TARE

TARETARE

displayed, then release it. Balance
will display SPAN.

ONON

ON

2. Press

3. When

ONON

.

TARETARE

TARE

TARETARE

ONON

ON

ONON

is released, C 0g will be

TARETARE

TARE

TARETARE

displayed indicating that no weight
should be on the pan.

ONON

ON

4. Press

ONON

. The display will show

TARETARE

TARE

TARETARE

-C- followed by the value of the weight
which must be placed on the pan.

NOTE: NOTE:

NOTE: Do not disturb the balance when

NOTE: NOTE:

-C- is displayed. Disturbances will
result in improper calibration.

5. Place the required weight on the pan

ONON

ON

and press

ONON

. The display will

TARETARE

TARE

TARETARE

show -C- 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. Turn Balance on. After zero reading,

ONON

ON

ONON

TARETARE

TARE

TARETARE

press and hold

until CAL is

displayed, then release. Balance will
display SPAN.

OFFOFF

OFF

OFFOFF

2. Press

and the display will show

MODEMODE

MODE

MODEMODE

LIN.

ONON

ON

ONON

TARETARE

TARE

TARETARE

3. Press

to start the Linearity Cali-

bration Procedure. When the
is released, C 0g will be displayed,

indicating that no weight should be in
the pan.

ONON

ON

ONON

TARETARE

TARE

TARETARE

ONON

ON

4. Press

ONON

. The display will show

TARETARE

TARE

TARETARE

-C- followed by the value of the weight
which must be placed on the pan.

5. Place the required weight on the pan.

15

ONON

ON

6. Press

ONON

. The display will show

TARETARE

TARE

TARETARE

-C- momentarily, then C followed by
the next weight to be placed on the
pan. Do not disturb the balance when

-C- is displayed. Disturbances will
result in improper calibration.

7. Place the required weight on the pan,

ONON

ON

then press

ONON

. The display will

TARETARE

TARE

TARETARE

show -C- while the balance recali­brates. 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.

OFFOFF

OFF

OFFOFF

MODEMODE

MODE

Repeately press

MODEMODE

until End is dis-

played.

ONON

ON

ONON

Press

, when released, the balance

TARETARE

TARE

TARETARE

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

ONON

ON

ONON

until USER is displayed, then re-

TARETARE

TARE

TARETARE

lease it.

17

To access a submenu:

OFFOFF

OFF

1. Repeatedly press

OFFOFF

until the de-

MODEMODE

MODE

MODEMODE

sired submenu is displayed.

ONON

ON

2. Press

ONON

to select the displayed

TARETARE

TARE

TARETARE

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.

OFFOFF

OFF

OFFOFF

MODEMODE

MODE

2. Press

MODEMODE

to change the setting.

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

ONON

ON

Press

ONON

to accept the displayed

TARETARE

TARE

TARETARE

setting.

USER MENUUSER MENU

USER MENU

USER MENUUSER MENU

FACTORY DEFAULTSFACTORY DEFAULTS

FACTORY DEFAULTS

FACTORY DEFAULTSFACTORY DEFAULTS

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.

OFFOFF

OFF

OFFOFF

MODEMODE

MODE

Press

MODEMODE

to change the setting.

ONON

ON

ONON

to accept the displayed

TARETARE

TARE

TARETARE

2. Press

setting.

ONON

ON

When

ONON

is released, AL will be dis-

TARETARE

TARE

TARETARE

played again and the Setup menu will be
returned.

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. Pre­cision 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.

OFFOFF

OFF

2. Press

OFFOFF

to change the setting.

MODEMODE

MODE

MODEMODE

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

ONON

ON

Press to accept the displayed

ONON

TARETARE

TARE

TARETARE

setting.

ONON

ON

When is released, Stb will be dis-

ONON

TARETARE

TARE

TARETARE

played 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.

20

To view or change the Auto-Zero setting:

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

OFFOFF

OFF

Press

OFFOFF

to change the setting.

MODEMODE

MODE

MODEMODE

ONON

ON

ONON

TARETARE

TARE

TARETARE

to accept the displayed

2. Press

setting.

When

is released, Auto-0 will

ONON

ON

ONON

TARETARE

TARE

TARETARE

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.

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

To exit the User menu and store your

ONON

ON

ONON

settings, press

when End is dis-

TARETARE

TARE

TARETARE

played.

ONON

ON

When

ONON

is released, the balance will

TARETARE

TARE

TARETARE

be returned to normal weighing opera­tions.

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

Enables the selection of weighing
units.
Indicates the software version of the
balance.
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 menu has been locked out. Settings may be

NOTENOTE

viewed but not changed. See the Menu Lock-Out Protection section to enable it for
making changes.

To access the Setup menu, press and

ONON

ON

ONON

hold

until SETUP is displayed, then

TARETARE

TARE

TARETARE

release it.

To access a submenu:

OFFOFF

OFF

1. Repeatedly press

OFFOFF

until the de-

MODEMODE

MODE

MODEMODE

sired submenu is displayed.

ONON

ON

2. Press

ONON

to select the displayed

TARETARE

TARE

TARETARE

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.

22

Unit SelectionUnit Selection

Unit Selection

Unit SelectionUnit Selection

Unit selection permits you to specify which
weighing units will be enabled for use
during operation. The adjacent table lists
the units available.

To enable or disable the various weighing
units, use the following procedure:

1. Access the SEL menu.

2. The display will show the grams unit
indicator (g) along with the current
status (ON/OFF).

OFFOFF

OFF

3. Press

4. Press

status. When is released, the

OFFOFF

to change the status.

MODEMODE

MODE

MODEMODE

ONON

ON

ONON

to accept the displayed

TARETARE

TARE

TARETARE

ONON

ON

ONON

TARETARE

TARE

TARETARE

display will show the next unit indica­tor with the current status.

5. Set each unit ON or OFF as in step 3.

TaelsTaels

Taels

TaelsTaels

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

Weighing Units

g grams : mommes

dwt pennyweight ct carats

oz t troy ounces t taels

lb lb:oz

gn oz

(Hong Kong)

When the display shows TAEL 1, press

OFFOFF

OFF

OFFOFF

to change to another tael, press

MODEMODE

MODE

MODEMODE

ONON

ON

ONON

to accept the displayed tael.

TARE TARE

TARE

TARE TARE

When the last weighing unit has been set,
the display will show SEL again and the
Setup menu will be returned.

(Singapore)

(Taiwan)

23

LockswitchLockswitch

Lockswitch

LockswitchLockswitch

Lockswitch enables you to lock out one or
more menu selections. Each menu can be
individually locked on or off after all func­tions have been set. The Calibration,
User, and Setup menus can be individu­ally locked on or off by selecting the
appropriate menu and then locked by the
switch located under the right hand side of
the control panel. Before performing the
lock out procedure, decide which func­tions of the balance are to be locked on or
off.

1. Access the LOCSW submenu. When

ONON

ON

ONON

is released, the LOCSW sub-

TARETARE

TARE

TARETARE

menu is displayed.

2. To access one or more menus, press

ONON

ON

ONON

to select the calibration menu,

TARETARE

TARE

TARETARE

-CAL- is displayed.

OFFOFF

OFF

OFFOFF

MODEMODE

MODE

NOTENOTE

NOTE: Pressing changes the

NOTENOTE

MODEMODE

selection to the other menus.

3. To select a YES or NO, press

OFFOFF

OFF

NOTENOTE

NOTE: The switch acts as a

NOTENOTE

OFFOFF

MODEMODE

MODE

MODEMODE

toggle and can select either YES or
NO.

4. To confirm your selection, press
again. The display indicates the last

menu you were in.

OFFOFF

OFF

OFFOFF

MODEMODE

MODE

MODEMODE

ONON

ON

ONON

TARETARE

TARE

TARETARE

.

24

5. To lock out the other menus, press

OFFOFF

OFF

OFFOFF

and repeat the procedure in

MODEMODE

MODE

MODEMODE

steps 3 and 4.

EndEnd

End

EndEnd

You must use END to exit the Setup menu.

Changes you make in the Setup menuChanges you make in the Setup menu

Changes you make in the Setup menu

Changes you make in the Setup menuChanges you make in the Setup 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.

To exit the Setup menu and store your

ONON

ON

ONON

settings, press

when END is dis-

TARE TARE

TARE

TARE TARE

played.

ONON

ON

When

ONON

is released, the balance will

TARETARE

TARE

TARETARE

be returned to normal weighing opera­tions.

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.

25

LOCK OUT

SWITCH

UNLOCK

LOCK

CARE AND MAINTENANCECARE AND MAINTENANCE

CARE AND MAINTENANCE

CARE AND MAINTENANCECARE AND MAINTENANCE

To keep the balance operating properly, the housing 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.

PROBABLE CAUSE(S)

Power adapter not
plugged in or properly
connected to balance.

Balance was not re­zeroed 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.

REMEDY

Check power adapter
connections.

Press ON TARE 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.

Unable to change
settings.

Unstable readings.

Error message display.

Lock set ON.

Vibration on table
surface.

26

Set Lock switch to OFF.

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.

Tare ErrorsTare Errors

Tare Errors

Tare ErrorsTare Errors

2.0 Balance is unable to stabilize within time limit after 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.

27

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 [phone], an Ohaus
Product Service Specialist will be available to help you.

28

MODELMODEL

MODEL

MODELMODEL

Capacity (g) 120 200 400/80 400 600 2000 4000/800 4000
Readability (g) 0.001 0.01/0.001 0.01 0.1/0.01 0.1
Weighing mode g, lb, oz, lb:oz, ct, dwt, taels, oz t, gn, momme
Repeatability 0.001 0.007/0.001 0.007 0.01 0.07/0.01 0.07

(Std. dev.) (g)
Linearity (g) ±0.001 ±0.002 ±0.01/0.001 ±0.01 ±0.02 ±0.1/0.01 ±0.1
Tare range Full capacity by subtraction
Stabilization time 2.5 seconds
Sensitivity drift

(10 - 30 °C) 10ppm/ °C
Operating temperature 50° to 104°F/10 ° to 40°C
Calibration External digital 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 (WxHxD) 4.8/ 6 x 6.5/

(in/cm) 12.2 15.2 x 16.5
Dimensions 8 x 3.75 x 14/20.3 x 9.5 x 35.6

(W x H x D) (in/cm) without draft shield
Net weight (lb/kg) 9.8/4.4
Shipping weight (lb/kg) 13.6/6.2

TS120 TS200 TS120 TS200

TS120 TS200

TS120 TS200 TS120 TS200

TS400D TS400D

TS400D

TS400D TS400D

TS400 TS600 TS400 TS600

TS400 TS600

TS400 TS600 TS400 TS600

TS2K TS4KD TS2K TS4KD

TS2K TS4KD

TS2K TS4KD TS2K TS4KD

TS4K TS4K

TS4K

TS4K TS4K

29

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 [phone], an Ohaus Product Parts Specialist will
be available to help you.

REPLACEMENT PARTSREPLACEMENT PARTS

REPLACEMENT PARTS

REPLACEMENT PARTSREPLACEMENT PARTS

OHAUS
Description Part No.
AC Adapters:

100V 90766-01
120V 90765-01
220V 90767-01
240V 90768-01

240V Australia 90524-15
Pan - 4.7” dia. 77262-10
Pan - 6.0” x 6.5” 77298-10
Draft Shield Snap Clamp (TS120, TS200 and TS400D) 77334-00

ACCESSORIESACCESSORIES

ACCESSORIES

ACCESSORIESACCESSORIES

OHAUS
Part No.

In-Service Cover 78211-02
Draft Shield Kit 76934-03

Chamber Size: 6.0”W x 4.25”H x 6.375”D
RS232 Interface Kit 77018-01
Cable for RS232 Interface AS020-17
Cable with PRINT switch for RS232 Interface AS017-25
Leveling Foot Conversion Kit: 77327-00
Weigh Below Hook 76790-00
Security Device 76288-01
Calibration Masses - ASTM Class 1 Tolerance:

50g 49054-11

100g 49015-11

200g 49025-11

400g 49045-11

500g 49055-11

1kg 49016-11

2kg 49026-11

4kg 49046-11

30

LIMITED WARRANTY LIMITED WARRANTY

LIMITED WARRANTY

LIMITED WARRANTY LIMITED 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.

31

Ohaus Corporation
29 Hanover Road,
Florham Park, NJ 07932, USA
Tel: [phone],
Fax: [phone]

With offices worldwide.

P/N 77331-04 © Ohaus Corporation 1997, 1999 all rights reserved.

32

Weigh Below Hook

Accessor y

P/N 76790-00

INSTALLATIONINSTALLATION

INSTALLATION

INSTALLATIONINSTALLATION

1. Turn the balance OFF.

2. Remove the pan.

3. Hold the pan support in place and
turn the balance over or on its side.

4. Screw the hook into the threaded
hole in the pan support which is
visible through the access hole in the
bottom of the balance.

BOTTOM OF
PAN SUPPORT

For PRECISION

Standard

Electronic Balances

Installation InstructionsInstallation Instructions

Installation Instructions

Installation InstructionsInstallation Instructions

© Ohaus Corporation 1991, all rights reserved.

5. Replace the pan.

OHAUS® is the registered trademark of Ohaus Corporation as are the following
trademarks: AUTOGRAM® , BRAINWEIGH® , CENT-O-GRAM® , CHECK-O-GRAM® ,
CUBE-O-GRAM® , DEC-O-GRAM® , DIAL-O-GRAIN® , DIAL-O-GRAM® , DU-O-MEA­SURE® , GALAXY® , LUME-O-GRAM® , PORT-O-COUNT® , PORT-O-GRAM® , PRACT­O-GRAM® , PRIMER® , STO-A-WEIGH® , TOUCH-N-WEIGH® , 5-0-5® , and 10-10® .

OHAUS CORPORATIONOHAUS CORPORATION

OHAUS CORPORATION

OHAUS CORPORATIONOHAUS CORPORATION

P.O. Box 900 Broad Lane, Cottenham
29 Hanover Road Cambridge CB4 4SW
Florham Park, N.J. 07932 ENGLAND
Tel: [phone] Tel: [phone]
Telex: 6853191 OHAUS UW Telex: 817285 OSCALE G
Fax: [phone] Fax: [phone]

OHAUS EUROPE, LTD.OHAUS EUROPE, LTD.

OHAUS EUROPE, LTD.

OHAUS EUROPE, LTD.OHAUS EUROPE, LTD.

P/N 77332-00

Draft Shield

Accessor y Kit

P/N 76934-01

For PRECISION

Electronic Balances

Models TS400, TP400 and TP600

Standard

and

Plus

UNPACKINGUNPACKING

UNPACKING

UNPACKINGUNPACKING

Verify that a Draft Shield and Snap Clamp
have been included in the kit.

INSTALLATIONINSTALLATION

INSTALLATION

INSTALLATIONINSTALLATION

1. Remove the pan and pan support.

2. Position the draft shield
on top of the balance as
shown. Make sure the rib
at the front of the draft
shield base butts up
against the raised lip of the
display panel.

3. The snap clamp should be
oriented so that the double
clip is toward the front of
the balance.

First, insert the double clip
end of the snap clamp fully into
the opening towards the front of the
draft shield base and the underside of
the cover. Next, press the rear clip of the
snap clamp down into place.

Double

Clip

Snap
Clamp

Cover

Position rib up against
display panel.

Installation InstructionsInstallation Instructions

Installation Instructions

Installation InstructionsInstallation Instructions

© Ohaus Corporation 1993, all rights reserved.

4. Replace the pan and pan support.

OHAUS® is the registered trademark of Ohaus Corporation as are the following
trademarks: CENT-O-GRAM® , CHECK-O-GRAM® , DEC-O-GRAM® , DIAL-O-GRAM
PRIMER® , 5-0-5® , and 10-10® .

OHAUS CORPORATIONOHAUS CORPORATION

OHAUS CORPORATION

OHAUS CORPORATIONOHAUS CORPORATION

P.O. Box 900
29 Hanover Road
Florham Park, N.J. 07932, USA
Tel: [phone]
Telex: 6853191 OHAUS UW
Fax: [phone]

With other offices in England, Mexico, Canada,
Japan, Germany, France, Switzerland

®

,

®

P/N 77326-01 R0793

Ohaus Corporation

29 Hanover Road
Florham Park NJ
07932-0900

Leveling Kit Accessory

P/N 77327-00

For PRECISION

Standard

Electronic Balances

Installation Instructions

UNPACKING

The Leveling Kit includes the following components:

1 FCC label 1 level assembly with
2 lockwashers 3 set screws installed
2 phillips screws 1 brass foot

4 leveling feet (2 pairs)

© Ohaus Corporation 1991, 1999, all rights reserved.

INSTALLATIONINSTALLATION

INSTALLATION

INSTALLATIONINSTALLATION

A phillips screwdriver, 1/16” hex wrench
and 9/64” hex wrench will be required to
install the leveling kit.

1. Disconnect power to the balance.

2. Remove the pan and pan support.

3. Turn the balance over.

4. Remove the FCC label. The label
covers two clearance holes that will
be used for mounting the leveling
assembly.

5. Peel off the two rubber feet at the front
of the balance.

6. Using a 9/64” hex wrench, remove
the socket head screw at the rear of
the balance. Leave the washer in
place.

7. Install the brass foot in place of the
socket head screw.

8. Screw the leveling feet in leaving
approximately 3/16” clearance be­tween the bottom of the balance and
the foot.

NOTE: Two pairs of leveling feet are in­cluded in this kit. The all plastic feet are
for earlier TS Models. The leveling feet
with metal threaded shafts are for later
versions.

Rubber Feet

Leveling

Feet

FCC Label

Socket head

Screw

Brass

Foot

3/16” Clearance

2

9. Remove the three phillips head
screws which secure the balance
cover to the base.

10. Hold the base and cover together
and turn the balance right side up.

11. Lift the cover off.

Remove

12. Using the two phillips screws and
lockwashers provided in the kit, fas­ten the leveling assembly as shown
in the diagram.

Screws should be snug but not tight.
DO NOT COMPLETELY TIGHTEN
THE SCREWS.

13. Place the balance on a level work
surface. ENSURE SURFACE IS
LEVEL BEFORE CONTINUING. Po­sition the balance so that the leveling
assembly extends from the edge of
the work surface.

Remove

Phillips Screws

Remove screw

on rear panel

(not shown)

Lockwashers

Leveling

Assembly

14. Using a 1/16” hex wrench adjust the
three set screws in the leveling as­sembly as needed to center the
bubble in the level indicator.

When the bubble is centered, tighten
the two phillips screws.

15. Apply the new FCC label (included in
the kit) to the bottom of the balance.
Do not to cover any screws or holes.

Adjust set screws as needed

3

16. Replace the cover and fasten with the
three phillips screws that were re­moved in step 9.

17. Replace the pan support and pan.

18. Place the balance in the location
where it will be used and verify it is
level. If minor adjustment is needed, use the leveling feet.

19. Recalibrate the balance as explained in the instruction manual supplied with the
balance.

Ohaus Corporation
29 Hanover Road,
Florham Park, NJ 07932, USA
Tel: [phone],
Fax: [phone]

With offices in England, Germany, France, Spain, Italy, Poland, Mexico, Japan,
Korea and China.

P/N 77328-00 R0699

Ohaus Corporation

29 Hanover Road
Florham Park NJ
07932-0900

In-Service Cover
Accessory Kit

P/N 76901-30

For PRECISION
Electronic Balances

Installation InstructionsInstallation Instructions

Installation Instructions

Installation InstructionsInstallation Instructions

Standard

and

Plus

UNPACKINGUNPACKING

UNPACKING

UNPACKINGUNPACKING

The kit includes a cover and one adhesive pad.

INSTALLATIONINSTALLATION

INSTALLATION

INSTALLATIONINSTALLATION

1. Remove the pan and
pan support from the
balance.

2. Place the cover over the
balance as shown in the
diagram. If desired, the
adhesive pad may be
used to secure the cover
to the balance to avoid
possible movement.

Peel the backing off of
one side of the adhe­sive pad, center adhe­sive pad over hole in
top cover and press the
pad onto the top of the
balance as shown in the
diagram.

COVER

ADHESIVE

PAD

© Ohaus Corporation 1996, 1998 all rights reserved.

Remove the backing from the top of the pad, place the cover on the balance and
press down on the pad.

3. Replace the pan and pan support.

Ohaus Corporation
29 Hanover Road,
Florham Park, NJ 07932, USA
Tel: [phone],
Fax: [phone]

With offices in England, Germany, France, Spain, Italy, Poland, Mexico,
Japan, Korea and China.

P/N 76902-30 R1198

Ohaus Corporation

29 Hanover Road
Florham Park NJ
07932-0900

RS232 INTERFACE ACCESSORY
Part Number 77018-01
For

ANALYTICAL
and
PRECISION

Standard

Standard

Series

Balance Series

Instruction Manual

1

NOTICE:NOTICE:

NOTICE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO

NOTICE:NOTICE:

COMPLY WITH 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 .................................................................................................. 4

INSTALLATION .................................................................................................... 4

USING MENUS TO CONFIGURE THE BALANCE ............................................. 6

PRINT MENU ....................................................................................................... 7

Print Menu Protection.................................................................................... 7

Reset to Factory Defaults.............................................................................. 8

Baud Rate ..................................................................................................... 9

Data Bits........................................................................................................ 9

Parity ........................................................................................................... 10

Stop Bits ...................................................................................................... 10

Auto Print Feature ....................................................................................... 11

Print Stable Data Only................................................................................. 11

Print Numeric Data Only ............................................................................. 12

End .............................................................................................................. 12

MENU LOCK-OUT PROTECTION..................................................................... 13

USING THE INTERFACE .................................................................................. 14

Hardware..................................................................................................... 14

RS232 Commands ...................................................................................... 14

CARE AND MAINTENANCE.............................................................................. 17

TROUBLESHOOTING ....................................................................................... 17

Error Codes ................................................................................................. 17

SERVICE INFORMATION ................................................................................. 17

LIMITED WARRANTY........................................................................................ 19

3

INTRODUCTIONINTRODUCTION

INTRODUCTION

INTRODUCTIONINTRODUCTION

The RS232 Interface Accessory is a
bidirectional interface which enables ei­ther a Precision Standard or an Analytical
Standard balance to communicate with a
printer or computer equipped with an
RS232 serial port. The interface assembly
is easily installed in the balance and com­munication parameters are configured
through the balance’s front panel.

INSTALLATIONINSTALLATION

INSTALLATION

INSTALLATIONINSTALLATION

Use the following procedure to install the
RS232 Interface accessory.

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

TO PREVENT DAMAGE TO THE BAL­ANCE, BE CERTAIN THAT POWER IS
DISCONNECTED BEFORE REMOVING
THE COVER.

1. Disconnect power to the balance.

2. Remove the draft shield (if in­stalled).

3. Remove the pan and pan support.

4. Using a philips screwdriver, re­move the three screws and washers
which secure the cover to the bal­ance. The balance will have to be
turned over or on its side to access
the screws as they are located
on the bottom; two under the
front panel and one on the rear.

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

HOLD THE COVER AND BASE TO­GETHER WHILE REMOVING SCREWS.
DO NOT ALLOW COVER OR BASE TO
FALL.

4

5. Remove the cover.

6. On the rear of the balance, a protec­tive thin plate covers the hole for the
9-pin RS232 connector.

Peel off the plate to expose the hole.

7. Place the circuit board and connector
assembly in the balance so that the 9­pin connector fits through the hole.

8. Fasten the assembly using the two
screws provided.

9. Slide the ribbon connector onto the
edge connector of the main circuit
board.

10. Replace the cover and fasten the
three screws that were removed.

11. Replace the draft shield.

Ribbon

Connector

Remove Plate

RS232

Circuit

Board

Fasten

Screws

12. Replace the pan and pan support.

13. Reconnect power to the balance.

5

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

The Analytical Standard and Precision Standard balances both contain four display
menus which enable you to calibrate and configure the balance for your specific
operating requirements. The print menu shown below is used to configure the RS232
interface.

PRINT MENU

RESET
BAUD RATE

300, 1200,
4800, 9600

24002400

2400,

24002400

DATA BITS

77

7 or 8

77

PARITY BIT

Odd, Even,

NoneNone

None, 1, 0

NoneNone

STOP BITS

22

1 or

2

22

AUTO PRINT

continuous, on stability,

OFFOFF

OFF

OFFOFF

STABLE DATA OUTPUT ONLY

OFFOFF

ON or

OFF

OFFOFF

NUMERIC DATA OUTPUT ONLY

OFFOFF

ON or

OFF

OFFOFF

END

6

PRINT MENUPRINT MENU

PRINT MENU

PRINT MENUPRINT MENU

When the interface is installed, the Print menu is used to configure the RS232 interface
parameters and customize the balance’s print functions for your requirements. The
following table shows the sequence in which submenus appear on the Print menu.

PRINT MENU TABLEPRINT MENU TABLE

PRINT MENU TABLE

PRINT MENU TABLEPRINT MENU TABLE

*

Sets all submenus below to original factory
default settings.
Specifies baud rate.

Specifies number of data bits.
Specifies parity type, if any.
Specifies number of stop bits.
Enables/disables Auto print feature.
Enables/disables printing stable-data-only

feature.
Specifies numeric-only or full display data
for output.
Used to exit the Print menu and store your
selections.

* Does not appear in menu if menu is locked out.

Print Menu ProtectionPrint Menu Protection

Print Menu Protection

Print Menu ProtectionPrint Menu Protection

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

To access the Print menu press and hold

ONON

ON

ONON

until PRINT is displayed, then re-

TARETARE

TARE

TARETARE

lease it.

If SAFE is displayed, the Print 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.

7

To access a submenu:

OFFOFF

OFF

1. Repeatedly press

OFFOFF

until the de-

MODEMODE

MODE

MODEMODE

sired submenu is displayed.

ONON

ON

ONON

TARETARE

TARE

TARETARE

2. Press

to select the displayed

submenu.

NOTE:NOTE:

NOTE: You must use END to store any

NOTE:NOTE:

changes you make to the Print menu.

The following sections describe each item
on the Print 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
RS232 menu selections to the original
factory default settings outlined in the ad­jacent table.

To reset to factory defaults:

1. Access the Reset submenu to view
the current setting.

OFFOFF

OFF

2. Press

OFFOFF

to change the setting.

MODEMODE

MODE

MODEMODE

(Select YES to reset settings or,
NO to leave current settings.)

PRINT MENUPRINT MENU

PRINT MENU

PRINT MENUPRINT MENU

FACTORY DEFAULTSFACTORY DEFAULTS

FACTORY DEFAULTS

FACTORY DEFAULTSFACTORY DEFAULTS

Baud rate br 2400
Data Bits 7 data
Parity None
Stop Bits 2 stop
Auto Print OFF
Stable Data Only OFF
Numeric Data Only OFF

Press
setting.

ONON

ON

ONON

to accept the displayed

TARETARE

TARE

TARETARE

8

Baud RateBaud Rate

Baud Rate

Baud RateBaud Rate

This submenu is used to select the de­sired baud rate. There are five available
baud rates to choose from: 300, 1200,
2400, 4800 and 9600.

To view or change the baud rate:

1. Access the Baud submenu to dis-

play the current setting.

OFFOFF

OFF

OFFOFF

Press

MODEMODE

to change the setting.

MODE

MODEMODE

ONON

ON

ONON

to accept the displayed

TARETARE

TARE

TARETARE

2. Press

setting.

ONON

ON

When

ONON

is released, BAUD will be

TARETARE

TARE

TARETARE

displayed again and the Print menu
will be returned.

Data BitsData Bits

Data Bits

Data BitsData Bits

The total number of bits for Data, Parity
and Stop must equal 9 or 10. (see ex­amples). The balance will not permit you
to select a combination that does not equal
9 or 10.

To set the number of data bits to 7 or 8:

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

OFFOFF

OFF

2. Press

Press
setting. When is released,

OFFOFF

to change the setting.

MODEMODE

MODE

MODEMODE

ONON

ON

ONON

to accept the displayed

TARETARE

TARE

TARETARE

ONON

ON

ONON

TARETARE

TARE

TARETARE

DATA will be displayed again and the
Print menu will be returned.

EXAMPLESEXAMPLES

EXAMPLES

EXAMPLESEXAMPLES

8 Data + 2 Stop + No Parity = 10
8 Data + 1 Stop + Odd Parity = 10
7 Data + 1 Stop + Odd Parity = 9

9

ParityParity

Parity

ParityParity

Parity can be set to Odd, Even, None, or a
marker of 0 or 1 as follows:

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

2. Press

Press to accept the displayed

to change the setting.

MODEMODE

MODE

MODEMODE

ONON

ON

ONON

TARETARE

TARE

TARETARE

setting.

NOTE: NOTE:

NOTE: If all selections do not appear, total

NOTE: NOTE:

number of data, parity and stop bits is
currently < 8 or > 10. Data or stop bits must
be changed.

ONON

ON

When

ONON

is released, PARITY will be

TARETARE

TARE

TARETARE

displayed again and the Print menu will be
returned.

Stop BitsStop Bits

Stop Bits

Stop BitsStop Bits

The number of stop bits can be set to 1 or
2 as follows:

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

MODEMODE

MODE

2. Press to change the setting.

3. Press

MODEMODE

ONON

ON

ONON

to accept the displayed

TARETARE

TARE

TARETARE

setting.

NOTE: NOTE:

NOTE: If all selections do not appear, total

NOTE: NOTE:

number of data, parity and stop bits is
currently < 8 or > 10. Data or parity bits
must be changed.

ONON

ON

When

ONON

is released, STOP will be

TARETARE

TARE

TARETARE

displayed again and the Print menu will be
returned.

10

Auto Print FeatureAuto Print Feature

Auto Print Feature

Auto Print FeatureAuto Print Feature

When enabled, the Auto Print feature
causes the balance to automatically out­put display data in one of two ways: con­tinuously, or upon stability.

To select one of these Auto Print methods,
or to turn the feature off:

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

OFFOFF

OFF

2. Press

Press

OFFOFF

to change the setting.

MODEMODE

MODE

MODEMODE

ONON

ON

ONON

to accept the displayed

TARETARE

TARE

TARETARE

setting.

ONON

ON

When

ONON

is released, AUTOP will be

TARETARE

TARE

TARETARE

displayed again and the Print menu will be
returned.

Print Stable Data OnlyPrint Stable Data Only

Print Stable Data Only

Print Stable Data OnlyPrint Stable Data Only

.
When enabled, this feature permits only

stable display data to be output. To set the
feature ON or OFF:

1. Access the Stable submenu to dis­play the current status.

OFFOFF

OFF

OFFOFF

2. Press

Press

to change the status.

MODEMODE

MODE

MODEMODE

ONON

ON

ONON

to accept the displayed

TARETARE

TARE

TARETARE

status.

11

ONON

ON

When

ONON

is released, STABLE will be

TARETARE

TARE

TARETARE

displayed again and the Print menu will be
returned.

Print Numeric Data OnlyPrint Numeric Data Only

Print Numeric Data Only

Print Numeric Data OnlyPrint Numeric Data Only

This submenu is used to select numeric
data only, or full display data for RS232
output. Set this feature ON to output nu­meric display data only, or OFF to output
full display data as follows:

1. Access the Nu submenu to display
the current status.

OFFOFF

OFF

OFFOFF

Press

MODEMODE

to change the status.

MODE

MODEMODE

ONON

ON

ONON

TARETARE

TARE

TARETARE

to accept the displayed

2. Press

status.

ONON

ON

When

ONON

is released, NU will be dis-

TARETARE

TARE

TARETARE

played again and the Print menu will be
returned.

EndEnd

End

EndEnd

You must use END to exit the Print menu.

Changes you make in the Print menuChanges you make in the Print menu

Changes you make in the Print menu

Changes you make in the Print menuChanges you make in the Print 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.

To exit the Print menu and store your

ONON

ON

selections, press

ONON

when END is dis-

TARETARE

TARE

TARETARE

played. The balance will be returned to
normal weighing operations.

12

MENU LOCK-OUT PROTECTIONMENU LOCK-OUT PROTECTION

MENU LOCK-OUT PROTECTION

MENU LOCK-OUT PROTECTIONMENU LOCK-OUT PROTECTION

Access to the Print Menu can be disabled using the lock-out switch located under the
right side of the balance, near the display.

1. Turn 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 draft shield,
pan and pan support 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

13

USING THE INTERFACEUSING THE INTERFACE

USING THE INTERFACE

USING THE INTERFACEUSING THE INTERFACE

When the interface is installed, a short

OFFOFF

OFF

press on the switch will initiate a

OFFOFF

MODEMODE

MODE

MODEMODE

print command. Data output is in the
format shown under the P command in the
RS232 Command Table.

When the interface is connected to a com­puter, two way communication between
the computer and balance is possible us­ing the commands outlined in the RS232
Command Table.

HardwareHardware

Hardware

HardwareHardware

The balance can be interfaced with other
equipment utilizing the 9-pin subminia­ture “D” connector. The pinout and pin
connections are shown in the adjacent
illustration.

The balance will not output any data un­less pin 5 (CTS) is held in an ON state (+3
to +15 VDC). Interfaces not utilizing the
CTS handshake may tie pin 5 to pin 6 to
defeat it.

RS232 CommandsRS232 Commands

RS232 Commands

RS232 CommandsRS232 Commands

All communication is accomplished using
standard ASCII format. Only the charac­ters shown in the following table are ac­knowledged by the balance. Any other
commands, control characters or spaces
are ignored.

Commands sent to the balance must be
terminated with a carriage return (CR) or
carriage return-line line feed (CRLF). For
example, a tare command should appear
as shown in the adjacent diagram. Data
output by the balance is always termi­nated with a carriage return - line feed
(CRLF).

TARE *

PRINT *

1 5VDC (50 mA max.)
2 Data Out (TXD)
3 Data In (RXD)
4* Tare (External signal)
5 Clear To Send (CTS)
6 Data Terminal Ready (DTR)
7 Ground
8 Request To Send (RTS)
9* Print (External signal)

* External PRINT and/or TARE

switches may be installed as shown
in the diagram. Momentary con­tact switches must be used.

TARE COMMANDTARE COMMAND

TARE COMMAND

TARE COMMANDTARE COMMAND

Field: T CR LF

Length: 1 1 1

14

RS232 COMMAND TABLERS232 COMMAND TABLE

RS232 COMMAND TABLE

RS232 COMMAND TABLERS232 COMMAND TABLE

CommandCommand

Command

CommandCommand

CharacterCharacter

Character

CharacterCharacter

??

? Print current mode

??

nnnAnnnA

nnnA Set Auto Print feature to “n”

nnnAnnnA

CC

C Begin span calibration

CC

xDxD

xD Set 1 second print delay (set x = 0 for OFF, or x = 1 for ON)

xDxD

xx

II

x

I Set Averaging Level to “x”,

xx

II

DescriptionDescription

Description

DescriptionDescription

(see table).

where x = 0 to 3 (see table).

Field: Mode Stab CR LF

Length: 5 1 1 1

Grams
Pennyweight
Carats
Avoidupois ounces
Troy ounces
Grains
Taels

n = 0 Turns feature OFF
n = S Output on stability
n = C Output is continuous

0 = minimum level
1=
2=
3 = maximum level

blank if stable
“ ? ” if unstable

Momme
Pounds
Pounds:ounces
Custom unit
Parts counting
Percent weighing
Error

LL

L Begin linearity calibration

LL

PP

P Print display data

PP

When “numeric only” display
data is selected for output in
the RS232 menu, the Mode
field is not output.

Field: Weight Mode Stab CR LF
Length: 9 1 5 1 1 1

Same as ? command

Displayed weight sent right justified w/lead
zero blanking.
Nine characters include:

decimal point (1)
weight (7 max))
polarity (1): blank if positive

“ - ” if negative

15

RS232 COMMAND TABLE (Cont.)RS232 COMMAND TABLE (Cont.)

RS232 COMMAND TABLE (Cont.)

RS232 COMMAND TABLE (Cont.)RS232 COMMAND TABLE (Cont.)

CommandCommand

Command

CommandCommand

CharacterCharacter

Character

CharacterCharacter

xSxS

xS Set stable data only printing (set x = 0 for OFF, or x = 1 for ON).

xSxS

TT

T Same effect as pressing tare button

TT

VV

V Print EPROM version

VV

DescriptionDescription

Description

DescriptionDescription

Field: Model # EPROM # CR LF

Length: 7 15 1 1

Balance Model

xZxZ

xZ Set Auto Zero to “x”,

xZxZ

Esc LEsc L

Esc L Prints listing of Setup and Print menu settings.

Esc LEsc L

Esc REsc R

Esc R Resets Setup and Print menus to factory defaults.

Esc REsc R

Esc SEsc S

Esc S Save current settings.

Esc SEsc S

where x = 0 to 3 (see table).

CAUTION: This will reset RS232 configuration.

"98101-XX Sr*XX.X"

0 = OFF
1 = .5 d
2=1 d
3=3 d

16

CARE AND MAINTENANCECARE AND MAINTENANCE

CARE AND MAINTENANCE

CARE AND MAINTENANCECARE AND MAINTENANCE

The RS232 Interface Accessory once installed does not require maintenance.

TROUBLESHOOTINGTROUBLESHOOTING

TROUBLESHOOTING

TROUBLESHOOTINGTROUBLESHOOTING

SYMPTOM

RS232 interface not
working.

Error CodesError Codes

Error Codes

Error CodesError Codes

When the RS232 interface is installed in Precision Standard and Analytical Standard
balances, the following error codes are added to the standard list of error codes:

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

4.4 RS232 buffer is full. May occur if no printer or computer is connected to the

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

4.5 Function is disabled by the Lockswitch.

SERVICE INFORMATIONSERVICE INFORMATION

SERVICE INFORMATION

SERVICE INFORMATIONSERVICE INFORMATION

PROBABLE CAUSE(S)

Print menu settings not
properly set up.

Cable connections.

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

Check cable connections.

REMEDY

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 [phone]. An Ohaus Product
Service Specialist will be available to help you.

17

18

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.

19

Ohaus Corporation Ohaus Europe Ltd.
29 Hanover Road, ENGLAND
Florham Park, NJ 07932, USA Tel: [phone],
Tel: [phone], Fax: [phone]
Fax: [phone]

With offices in Germany, France, Spain, Italy, Canada, Mexico and Japan.

P/N 77017-01 R0296 © Ohaus Corporation 1993, 1996 all rights reserved.

20