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Ohaus Corporation
29 Hanover Road
Florham Park NJ
07932-0900
DS Series
Electronic Digital
Bench Scales
Instruction Manual
Page 10
Unauthorized changes or modifications to this equipment are notUnauthorized changes or modifications to this equipment are not
Unauthorized changes or modifications to this equipment are not
Unauthorized changes or modifications to this equipment are notUnauthorized changes or modifications to this equipment are not
permitted. See manual for replacement parts.permitted. See manual for replacement parts.
permitted. See manual for replacement parts.
permitted. See manual for replacement parts.permitted. See manual for replacement parts.
NOTENOTE
NOTE: This equipment has been tested and found to comply with the limits for a Class
NOTENOTE
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 Class A, digital apparatus meets all requirements of the Canadian Interference.
Causing Equipment Regulations.
Cet appareil numerique de la classe A respecte toutes les exigences du Reglement
sur le material broilleur du Canada.
This device corresponds to requirements stipulated in 90/384/EEC and
features radio interference suppression in compliance with valid EC
Regulation 89/336/EEC. Note: The displayed value may be adversely
affected under extreme electromagnetic influences, eg. when using a radio
unit in the immediate vicinity of the device. Once the interference has been
rectified, the product can once again be used for its intended purpose. The device may
have to be switched on again.
Cet appareil correspond aux exigences selon la norme 90/384/CEE et est déparasité
conformément à la directive de la CE 89/336/CEE en vigueur. Remarque: Dans des
conditions d’influences électromagnétiques extrêmes, par exemple en cas d’exploitation
d’un appareil radio à proximité immédiate de I’appareil la valeur d’affichage risque
d’être influencée. Une fois que l’influence parasite est terminée, le produit peut être
de nouveau utilisé de manière conforme aux prescriptions; le cas échéant, il est
nécessaire de le remettre en marche.
Dieses Gerät entspricht den Anforderungen nach 90/384/EWG und ist funkentstört
entsprechend der geltenden EG-Richtlinie 89/336/EWG. Hinweis: Unter extremen
elektromagnetischen Einflüssen z.B. bei Betreiben eines Funkgerätes in unmittelbarer
Nähe des Gerätes kann eine Beeinflussung des Anzeigewertes verursacht werden.
Nach Ende des Störeinflusses ist das Produkt wieder bestimmungsgemäss benutzbar,
ggfs. ist ein Wiedereinschalten erforderlich.
..
..
2
Page 11
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
INTRODUCTION.................................................................................................. 4
DESCRIPTION..................................................................................................... 4
UNPACKING ........................................................................................................ 5
INSTALLATION.................................................................................................... 5
Leveling ......................................................................................................... 5
Power Options .............................................................................................. 5
AC Adapter ................................................................................................... 6
OPERATION ........................................................................................................ 6
Turning the Scale ON ................................................................................... 6
Turning the Scale OFF ................................................................................. 6
Checking Calibration ..................................................................................... 7
Weighing ....................................................................................................... 7
Taring ............................................................................................................ 8
Calibration ..................................................................................................... 9
Changing Units kg/lb................................................................................... 10
CARE AND MAINTENANCE ............................................................................. 11
TROUBLESHOOTING ....................................................................................... 11
Error Messages .......................................................................................... 1 2
SPECIFICATIONS ............................................................................................. 12
SERVICE INFORMATION ................................................................................. 13
PARTS INFORMATION ..................................................................................... 1 3
REPLACEMENT PARTS ................................................................................... 13
ACCESSORIES ................................................................................................. 13
LIMITED WARRANTY ....................................................................................... 14
3
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INTRODUCTION
This manual covers installation, operation and troubleshooting for the Ohaus DS
Series Bench Scales, Models DS4, DS10, DS10L, DS20L and DS44L. To ensure
proper operation of the scale, please read this manual completely.
DESCRIPTIONDESCRIPTION
DESCRIPTION
DESCRIPTIONDESCRIPTION
The Ohaus DS Series Bench Scales are precision industrial weighing instruments
which can be used for almost any application with capacities from 44 to 440 pounds or
20 to 200 kilograms. The scale is designed to provide years of service with virtually no
maintenance. The DS series indicator is constructed using an extruded aluminum
housing which is anodized, contains a one piece PC board, a five digit LCD display
which is 0.8 inches in height. The indicator is connected to the platform by a coiled cord
and can be positioned up to eight feet from the platform for ease of viewing. The
platforms on Models DS4 and DS10 are constructed of stainless steel, and painted
steel on Models DS10L, DS20L and DS44L. The platforms are rugged and easily
cleaned. Power is supplied through an AC Adapter/Charger which is available in three
configurations for world-wide usage. An internal Nickel Cadmium battery powers the
indicator, is rechargable and provides up to eight hours operation. Typical recharge
time is seven hours. Accessories include a tower to support the indicator at a higher
position to permit easier viewing of the display on the indicator. An indicator wall mount
is included with the DS Series Bench Scales.
DS Series Electronic Digital Bench Scale
4
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UNPACKINGUNPACKING
UNPACKING
UNPACKINGUNPACKING
DS Series Bench Scales are shipped with the following components:
• a platform
• a power adapter/charger
• an indicator unit
• a wall mounting bracket and screws
• this instruction manual
• a warranty card
Carefully unpack and verify that all items are on hand.
INSTALLATIONINSTALLATION
INSTALLATION
INSTALLATIONINSTALLATION
LevelingLeveling
Leveling
LevelingLeveling
Models DS10L, DS20L, and DS44L
are equipped with adjustable leveling feet. Adjust the four leveling
feet under the platform to level it.
Leveling Feet
Power OptionsPower Options
Power Options
Power OptionsPower Options
All models may be operated using
the Power Adapter or the built-in
rechargeable Nickel Cadmium batteries.
Nickel Cadmium batteries will initially provide approximately 3 hours
of service before recharging is
needed. After 3 to 5
cyclescycles
cycles, the battery will reach full
cyclescycles
full chargingfull charging
full charging
full chargingfull charging
capacity providing a minimum of 8
hours of service. A full charging
cycle takes about 7 hours with the
display unit turned off.
5
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AC AdapterAC Adapter
AC Adapter
AC AdapterAC Adapter
Connect the Power Adapter/
Charger to the receptacle on the
display unit. Plug the adapter into a
convenient AC outlet.
OPERATIONOPERATION
OPERATION
OPERATIONOPERATION
Turning the Scale ONTurning the Scale ON
Turning the Scale ON
Turning the Scale ONTurning the Scale ON
With no load on the platform, switch
the scale ON by pressing the
OFF/RE-ZERO
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 zero will be displayed. When
zero is displayed, the balance is
ready for use.
AC Adapter
Receptacle
ON/
OR
Turning the Scale OFFTurning the Scale OFF
Turning the Scale OFF
Turning the Scale OFFTurning the Scale OFF
Press the
ON/OFF/RE-ZERO
ton when zero is displayed.
but-
6
Page 15
Checking CalibrationChecking Calibration
Checking Calibration
Checking CalibrationChecking Calibration
Before using the scale, calibration
should be verified. The scale 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.
To check the scale’s calibration, place
a traceable calibration mass on the
center of the platform and read the
displayed weight.
If the displayed weight differs from the
traceable calibration mass by more
than acceptable limits, calibration is
required. Refer to the Calibration section and the Specifications at the rear
of the manual.
WeighingWeighing
Weighing
WeighingWeighing
1. Press
rezero the display.
2. Place the object(s) or material
to be weighed on the platform
and read the weight on the display.
ON/OFF/RE-ZERO
to
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TaringTaring
Taring
TaringTaring
When weighing material or objects
that must be held in a container,
taring stores the container weight
in the scale’s memory and subtracts it from the total weight on the
platform.
1. Place an empty container on
the platform. Its weight will be
displayed.
2. Press
rezero the display. 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 platform will
cause the balance to display
the container’s weight as a
negative number.
Tared weight remains in balance
memory until
is pressed again.
ON/OFF/RE-ZERO
ON/OFF/RE-ZERO
to
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CalibrationCalibration
Calibration
CalibrationCalibration
NOTENOTE
NOTE: This procedure requires that
NOTENOTE
the scale
be in made in pounds or kilograms.
must be ON must be ON
must be ON. Calibration can
must be ON must be ON
1. Remove all weights from the
platform.
2. Press
ON/OFF/RE-ZERO
to
turn ON the scale. The display
should show either 0.00 kg or
0.00 lb.
3. Press
ON/OFF/RE-ZERO
hold for
fifteen secondsfifteen seconds
fifteen seconds, the
fifteen secondsfifteen seconds
and
display will show 0.00 kg or
0.00 lb. Release the
RE-ZERO
button, the display
ON/OFF/
will show in sequence 0 then
000 followed by CAL.
NOTENOTE
NOTE: If more than one weight is
NOTENOTE
used to calibrate, place them
on the scale at the same time.
4. Place a weight or weights on
the platform which equals the
full capacity of the scale. For
example, on Model DS4, a
weight of 20 kg would be used.
When the display indicates the
weight on the platform, remove
the weight(s).
NOTENOTE
NOTE: The display will alternate
NOTENOTE
between
000000
000 and
000000
CALCAL
CAL all the
CALCAL
time until a weight is placed on
the platform or until the scale
turns off by the auto-shut-off
feature.
5. Momentarily press the
OFF/RE-ZERO
button, the
scale should now be calibrated
and the display should indicate
0.00kg
ON/
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Changing Units kg/lbChanging Units kg/lb
Changing Units kg/lb
Changing Units kg/lbChanging Units kg/lb
NOTENOTE
NOTE: When it is required to change
NOTENOTE
from lb to kg, or kg to lb, the scale
be OFF be OFF
be OFF before proceeding.
be OFF be OFF
1. Remove all weights from the
platform.
must must
must
must must
2. Press
ON/OFF/RE-ZERO
hold for
fifteen secondsfifteen seconds
fifteen seconds, the
fifteen secondsfifteen seconds
and
display will show 88888. Release the
ON/OFF/RE-ZERO
button, the display will show the
current unit of measure.
3. Repeated pressing of the
OFF/RE-ZERO
button will
ON/
switch between kg and lb on the
display.
4. When the desired unit is displayed, press and hold the
OFF/RE-ZERO
fifteen secondsfifteen seconds
other
fifteen seconds and then
fifteen secondsfifteen seconds
button for an-
ON/
release. The display will now
show the selected unit either
0.00 kg or 0.00 lb.
OR
OR
10
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CARE AND MAINTENANCECARE AND MAINTENANCE
CARE AND MAINTENANCE
CARE AND MAINTENANCECARE AND MAINTENANCE
To keep the scale operating properly, the indicator and platform 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.
Error message display.
PROBABLE CAUSE(S)
Power adapter not plugged
in or properly connected to
scale or batteries are low.
Scale was not re-zeroed
before weighing.
Scale not properly
calibrated.
REMEDY
Check power adapter
connections. Charge
batteries.
Press ON/OFF/RE-ZERO
with no weight on the
platform, then weigh item.
Recalibrate correctly.
See Error Messages.
11
Page 20
Error MessagesError Messages
Error Messages
Error MessagesError Messages
Overload: The load on the platform exceeds the
capacity of the scale.
Underload: Platform has been removed.
Low Battery: NiCad battery pack must be charged.
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
Models DS4 DS10 DS10L DS20L DS44L
Capacity (lb) 44 110 110 220 440
Readability (lb) 0.02 0.05 0.05 0.1 0.2
Capacity (kg) 20 50 50 100 200
Readability (kg) 0.01 0.02 0.02 0.05 0.1
All Models
Linearity 3 divisions
Auto zero tracking
capture range 0.5 divisions
Tare range To Capacity by Subtraction
Over range capacity Capacity + 9 divisions
Stabilization time 3 seconds
Shift accuracy ± 1 division
Operating temperature 32° to 104°F/0° to 40° C
Weighing system 4 corner strain gauge load cells
Display (in/cm) LCD (0.8/2 high)
Power requirements Built in NiCad rechargeable battery pack or
AC Adapter/Charger: 120, 220, 240 V ac
Platform size (in/cm) 12.2 x 1.4 x 10.8/ 20.5 x 2.7 x 15.7/
(W x H x D) 31 x 3.6 x 27.4 52.1 x 6.9 x 40
Indicator size (in/cm) 10.2 x 2.4 x 5.5/
(W x H x D) 25.9 x 6.1 x 5.5
Net weight (lb/kg) 8.8/4 33/15
12
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SERVICE INFORMATIONSERVICE INFORMATION
SERVICE INFORMATION
SERVICE INFORMATIONSERVICE INFORMATION
For service assistance in the United States, please call Ohaus Corporation tollfree at (800) 526-0659. An Ohaus Product Service Specialist will be available
to help you.
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 OHAUS
REPLACEMENT PARTSREPLACEMENT PARTS
Part No.
Power Adapter/Chargers
120 V ac, 60 Hz North American Plug 90924-12
220 V ac, 50 Hz Euro Plug 90924-13
240 V ac, 50 Hz UK Plug 90924-14
ACCESSORIESACCESSORIES
ACCESSORIES OHAUS
ACCESSORIESACCESSORIES
Part No.
Tower (DS4 and DS10) 77627-01
Tower (DS10L, DS20L and DS44L) 77627-02
13
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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.
14
Page 23
Ohaus Corporation Ohaus Europe Ltd.
29 Hanover Road, ENGLAND
Florham Park, NJ 07932, USA Tel: +44 (0) 1954 251343,
Tel: (201) 377-9000, Fax: +44 (0) 1954 250205
Fax: (201) 593-0359
With offices in Germany, France, Spain, Italy, Canada, Mexico and Japan.
P/N 77626-03 R1195 © Ohaus Corporation 1995, all rights reserved.
Page 24
Ohaus Corporation
29 Hanover Road
Florham Park NJ
07932-0900
DS Series
Electronic Digital
Bench Scales
Instruction Manual
Page 25
Unauthorized changes or modifications to this equipment are notUnauthorized changes or modifications to this equipment are not
Unauthorized changes or modifications to this equipment are not
Unauthorized changes or modifications to this equipment are notUnauthorized changes or modifications to this equipment are not
permitted. See manual for replacement parts.permitted. See manual for replacement parts.
permitted. See manual for replacement parts.
permitted. See manual for replacement parts.permitted. See manual for replacement parts.
NOTENOTE
NOTE: This equipment has been tested and found to comply with the limits for a Class
NOTENOTE
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 Class A, digital apparatus meets all requirements of the Canadian Interference.
Causing Equipment Regulations.
Cet appareil numerique de la classe A respecte toutes les exigences du Reglement
sur le material broilleur du Canada.
This device corresponds to requirements stipulated in 90/384/EEC and
features radio interference suppression in compliance with valid EC
Regulation 89/336/EEC. Note: The displayed value may be adversely
affected under extreme electromagnetic influences, eg. when using a radio
unit in the immediate vicinity of the device. Once the interference has been
rectified, the product can once again be used for its intended purpose. The device may
have to be switched on again.
Cet appareil correspond aux exigences selon la norme 90/384/CEE et est déparasité
conformément à la directive de la CE 89/336/CEE en vigueur. Remarque: Dans des
conditions d’influences électromagnétiques extrêmes, par exemple en cas d’exploitation
d’un appareil radio à proximité immédiate de I’appareil la valeur d’affichage risque
d’être influencée. Une fois que l’influence parasite est terminée, le produit peut être
de nouveau utilisé de manière conforme aux prescriptions; le cas échéant, il est
nécessaire de le remettre en marche.
Dieses Gerät entspricht den Anforderungen nach 90/384/EWG und ist funkentstört
entsprechend der geltenden EG-Richtlinie 89/336/EWG. Hinweis: Unter extremen
elektromagnetischen Einflüssen z.B. bei Betreiben eines Funkgerätes in unmittelbarer
Nähe des Gerätes kann eine Beeinflussung des Anzeigewertes verursacht werden.
Nach Ende des Störeinflusses ist das Produkt wieder bestimmungsgemäss benutzbar,
ggfs. ist ein Wiedereinschalten erforderlich.
..
..
2
Page 26
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
INTRODUCTION .................................................................................................. 4
DESCRIPTION ..................................................................................................... 4
UNPACKING ........................................................................................................ 5
INSTALLATION .................................................................................................... 5
Leveling ......................................................................................................... 5
Power Options............................................................................................... 5
AC Adapter.................................................................................................... 6
OPERATION ........................................................................................................ 6
Turning the Scale ON.................................................................................... 6
Turning the Scale OFF .................................................................................. 6
Checking Calibration ..................................................................................... 7
Weighing ....................................................................................................... 7
Taring ............................................................................................................ 8
Calibration ..................................................................................................... 9
Changing Units kg/lb ................................................................................... 10
CARE AND MAINTENANCE.............................................................................. 11
TROUBLESHOOTING ....................................................................................... 11
Error Messages ........................................................................................... 12
SPECIFICATIONS ............................................................................................. 12
SERVICE INFORMATION ................................................................................. 13
PARTS INFORMATION ..................................................................................... 13
REPLACEMENT PARTS ................................................................................... 13
ACCESSORIES ................................................................................................. 13
LIMITED WARRANTY........................................................................................ 15
3
Page 27
INTRODUCTION
This manual covers installation, operation and troubleshooting for the Ohaus DS
Series Bench Scales, Models DS4, DS10, DS10L, DS20L and DS44L. To ensure
proper operation of the scale, please read this manual completely.
DESCRIPTIONDESCRIPTION
DESCRIPTION
DESCRIPTIONDESCRIPTION
The Ohaus DS Series Bench Scales are precision industrial weighing instruments
which can be used for almost any application with capacities from 44 to 440 pounds or
20 to 200 kilograms. The scale is designed to provide years of service with virtually no
maintenance. The DS series indicator is constructed using an extruded aluminum
housing which is anodized, contains a one piece PC board, a five digit LCD display
which is 0.8 inches in height. The indicator is connected to the platform by a coiled cord
and can be positioned up to eight feet from the platform for ease of viewing. The
platforms on Models DS4 and DS10 are constructed of stainless steel, and painted
steel on Models DS10L, DS20L and DS44L. The platforms are rugged and easily
cleaned. Power is supplied through an AC Adapter/Charger which is available in three
configurations for world-wide usage. An internal Nickel Cadmium battery powers the
indicator, is rechargable and provides up to eight hours operation. Typical recharge
time is seven hours. Accessories include a tower to support the indicator at a higher
position to permit easier viewing of the display on the indicator. An indicator wall mount
is included with the DS Series Bench Scales.
DS Series Electronic Digital Bench Scale
4
Page 28
UNPACKINGUNPACKING
UNPACKING
UNPACKINGUNPACKING
DS Series Bench Scales are shipped with the following components:
• a platform
• a power adapter/charger
• an indicator unit
• a wall mounting bracket and screws
• this instruction manual
• a warranty card
Carefully unpack and verify that all items are on hand.
INSTALLATIONINSTALLATION
INSTALLATION
INSTALLATIONINSTALLATION
LevelingLeveling
Leveling
LevelingLeveling
Models DS10L, DS20L, and DS44L
are equipped with adjustable leveling feet. Adjust the four leveling
feet under the platform to level it.
Leveling Feet
Power OptionsPower Options
Power Options
Power OptionsPower Options
All models may be operated using
the Power Adapter or the built-in
rechargeable Nickel Cadmium batteries.
Nickel Cadmium batteries will initially provide approximately 3 hours
of service before recharging is
needed. After 3 to 5
cyclescycles
cycles, the battery will reach full
cyclescycles
full chargingfull charging
full charging
full chargingfull charging
capacity providing a minimum of 8
hours of service. A full charging
cycle takes about 7 hours with the
display unit turned off.
5
Page 29
AC AdapterAC Adapter
AC Adapter
AC AdapterAC Adapter
Connect the Power Adapter/
Charger to the receptacle on the
display unit. Plug the adapter into a
convenient AC outlet.
OPERATIONOPERATION
OPERATION
OPERATIONOPERATION
Turning the Scale ONTurning the Scale ON
Turning the Scale ON
Turning the Scale ONTurning the Scale ON
With no load on the platform, switch
the scale ON by pressing the
OFF/RE-ZERO
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 zero will be displayed. When
zero is displayed, the balance is
ready for use.
AC Adapter
Receptacle
ON/
OR
Turning the Scale OFFTurning the Scale OFF
Turning the Scale OFF
Turning the Scale OFFTurning the Scale OFF
Press the
ON/OFF/RE-ZERO
ton when zero is displayed.
but-
6
Page 30
Checking CalibrationChecking Calibration
Checking Calibration
Checking CalibrationChecking Calibration
Before using the scale, calibration
should be verified. The scale 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.
To check the scale’s calibration, place
a traceable calibration mass on the
center of the platform and read the
displayed weight.
If the displayed weight differs from the
traceable calibration mass by more
than acceptable limits, calibration is
required. Refer to the Calibration section and the Specifications at the rear
of the manual.
WeighingWeighing
Weighing
WeighingWeighing
1. Press
rezero the display.
2. Place the object(s) or material
to be weighed on the platform
and read the weight on the display.
ON/OFF/RE-ZERO
to
7
Page 31
TaringTaring
Taring
TaringTaring
When weighing material or objects
that must be held in a container,
taring stores the container weight
in the scale’s memory and subtracts it from the total weight on the
platform.
1. Place an empty container on
the platform. Its weight will be
displayed.
2. Press
rezero the display. 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 platform will
cause the balance to display
the container’s weight as a
negative number.
Tared weight remains in balance
memory until
is pressed again.
ON/OFF/RE-ZERO
ON/OFF/RE-ZERO
to
8
Page 32
CalibrationCalibration
Calibration
CalibrationCalibration
NOTENOTE
NOTE: This procedure requires that
NOTENOTE
the scale
be in made in pounds or kilograms.
must be ON must be ON
must be ON. Calibration can
must be ON must be ON
1. Remove all weights from the
platform.
2. Press
ON/OFF/RE-ZERO
to
turn ON the scale. The display
should show either 0.00 kg or
0.00 lb.
3. Press
ON/OFF/RE-ZERO
hold for
five secondsfive seconds
five seconds until CO
five secondsfive seconds
and
appears in the display. Wait for
display C100.
4. Place a test weight or weights
on the platform which equals
the full capacity of the scale.
For example, on Model DS4, a
weight of 20 kg would be used.
Press
ON/OFF/RE-ZERO
and
wait for display 100.
5. The scale is readjusted and
ready for operation after pressing the
ON/OFF/RE-ZERO
button once again.
Wait for 0.00 kg or 0.00 lb.
9
Page 33
Changing Units kg/lbChanging Units kg/lb
Changing Units kg/lb
Changing Units kg/lbChanging Units kg/lb
NOTENOTE
NOTE: When it is required to change
NOTENOTE
from lb to kg, or kg to lb, the scale
be OFF be OFF
be OFF before proceeding.
be OFF be OFF
1. Remove all weights from the
platform.
must must
must
must must
2. Press
ON/OFF/RE-ZERO
hold for
five secondsfive seconds
five seconds, the dis-
five secondsfive seconds
and
play will show 88888. Release
the
ON/OFF/RE-ZERO
button,
the display will show the current
unit of measure.
3. Repeated pressing of the
OFF/RE-ZERO
button will
ON/
switch between kg and lb on the
display.
4. When the desired unit is displayed, press and hold the
OFF/RE-ZERO
five secondsfive seconds
other
five seconds and then
five secondsfive seconds
button for an-
ON/
release. The display will now
show the selected unit either
0.00 kg or 0.00 lb.
OR
OR
10
Page 34
CARE AND MAINTENANCECARE AND MAINTENANCE
CARE AND MAINTENANCE
CARE AND MAINTENANCECARE AND MAINTENANCE
To keep the scale operating properly, the indicator and platform 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.
Error message display.
PROBABLE CAUSE(S)
Power adapter not plugged
in or properly connected to
scale or batteries are low.
Scale was not re-zeroed
before weighing.
Scale not properly
calibrated.
REMEDY
Check power adapter
connections. Charge
batteries.
Press ON/OFF/RE-ZERO
with no weight on the
platform, then weigh item.
Recalibrate correctly.
See Error Messages.
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Error MessagesError Messages
Error Messages
Error MessagesError Messages
Overload: The load on the platform exceeds the
capacity of the scale.
Underload: Platform has been removed.
Low Battery: NiCad battery pack must be charged.
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
Models DS4 DS10 DS10L DS20L DS44L
Capacity (lb) 44 110 110 220 440
Readability (lb) 0.02 0.05 0.05 0.1 0.2
Capacity (kg) 20 50 50 100 200
Readability (kg) 0.01 0.02 0.02 0.05 0.1
All Models
Linearity 3 divisions
Auto zero tracking
capture range 0.5 divisions
Tare range To Capacity by Subtraction
Over range capacity Capacity + 9 divisions
Stabilization time 3 seconds
Shift accuracy ± 1 division
Operating temperature 32° to 104°F/0° to 40° C
Weighing system 4 corner strain gauge load cells
Display (in/cm) LCD (0.8/2 high)
Power requirements Built in NiCad rechargeable battery pack or
AC Adapter/Charger: 120, 220, 240 V ac
Platform size (in/cm) 12.2 x 1.4 x 10.8/ 20.5 x 2.7 x 15.7/
(W x H x D) 31 x 3.6 x 27.4 52.1 x 6.9 x 40
Indicator size (in/cm) 10.2 x 2.4 x 5.5/
(W x H x D) 25.9 x 6.1 x 5.5
Net weight (lb/kg) 8.8/4 33/15
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SERVICE INFORMATIONSERVICE INFORMATION
SERVICE INFORMATION
SERVICE INFORMATIONSERVICE INFORMATION
For service assistance in the United States, please call Ohaus Corporation tollfree at (800) 526-0659. An Ohaus Product Service Specialist will be available
to help you.
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 OHAUS
REPLACEMENT PARTSREPLACEMENT PARTS
Part No.
Power Adapter/Chargers
120 V ac, 60 Hz North American Plug 90924-12
220 V ac, 50 Hz Euro Plug 90924-13
240 V ac, 50 Hz UK Plug 90924-14
ACCESSORIESACCESSORIES
ACCESSORIES OHAUS
ACCESSORIESACCESSORIES
Part No.
Tower (DS4 and DS10) 77627-01
Tower (DS10L, DS20L and DS44L) 77627-02
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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.
P/N 77626-04 © Ohaus Corporation 1996, all rights reserved.
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