Yamato DSR-400 User manual

DSR-400 Operation Manual
YCO-1105-06-02
YAMATO CORPORATION
1775 S. Murray Blvd.
Colorado Springs, CO 80916 USA
Tel [phone] Fax [phone]
YAMATO TECH CORPORATION
#112-19425 Langley By-Pass
Surrey, B.C. V3S 6K1 Canada
Tel [phone] Fax [phone]

YCO-1105-06-02
DSR-400 Operation Manual
I. Introduction 1
II. Specifications 1
III. Operation 1
A. Control Panel 1
B. Power 2
C. Turning the Scale On and Off 2
D. Zero the Display 2
E. Unit Selection 2
F. Weighing 3
1. Basic Weighing 3
2. Net Weighing 3
3. Batch Weighing 4
V. Troubleshooting and Error Messages 4
Table of Contents
SAFETY INSTRUCTIONS
Before using the scale, carefully read, understand, and follow the “Safety Instructions” described in this manual. Observe the advice given in
the “Operations” section to ensure proper operation. Keep this operation manual handy for reference.
1) This scale is not an explosion-proof model. Do not use the scale in an atmosphere containing flammable gases or explosive fumes. A fire or an explosion can result.
2) Do not operate the scale if there is smoke or a burnt smell coming from the scale. Remove the batteries or unplug the AC adaptor immediately. After making sure that there is no
danger, consult your dealer. Never try to repair the scale by yourself.
3) Never step on or sit on the scale. Not only will the scale be damaged, but you may also be injured.
4) Place the item to be weighed in the center of the platform. Items placed on the edge of the platform may fall off and cause injury.
5) When weighing a heavy, large or unbalanced item, make sure the item is stable on the platform, otherwise, an accident may occur.
6) When carrying or moving the scale, be sure to hold it by the bottom of the base with both hands. If you hold it by the platform, the platform or the platform support may become
detached causing the scale to fall. This will damage the scale. The platform is designed for easy removal and clean-up.
7) Do not insert your finger into the gap or holes in the scale. You may be injured.
8) The DSR-400 uses a liquid crystal display. If the LCD breaks and the liquid leaks from the LCD, do not touch it with your fingers. The liquid is toxic if ingested. Be especially careful
around small children.
To prevent damage to the scale
1) Do not push the indicator or keys with sharp objects. They may break or puncture the switch membrane panel.
2) Use the specified power supply and choose a suitable environment. If you do not, the weight readings may be inaccurate and the scale may be damaged.
3) The scale is a sensitive weighing instrument, avoid physical shocks. If you drop something on the scale, step on the platform, or drop it, the scale may be damaged and lose
accuracy.
4) If the scale becomes dirty, wipe it with a soft cloth. For stubborn stains, apply a little neutral detergent and then wipe the scale with a dry cloth. Do not use thinner, benzene, hot
water, or chemical agents, all of which can cause deformation, discoloration, or deterioration of the scale.
5) Never remove the case. The fine adjustment section may be damaged and you may be injured by sharp edges on the internal parts.
6) Do not place the scale upside down except when replacing the batteries.
7) When a low battery condition occurs, replace all of the batteries. When installing the batteries, install them according to the polarity markings in the case (+, -). If the scale will not be
used for a long period, remove the batteries.
To keep the scale working efficiently
1) Place the scale on a flat stable surface that will support the scale and the load.
2) Do not place the scale in an area exposed to direct sunlight or to wind currents from an air conditioner, otherwise, the weights will not be accurate.
3) Do not place the scale near machines that create vibrations or electromagnetic disturbance, such as microwave ovens, portable phones, or large motors. This will affect the accuracy.
4) The operating temperature range is from –5 C to +104 C (32°F to 104°F). Do not subject the scale to sudden temperature changes; allow the scale to adjust to the new temperature
before use.
5) This scale is not waterproof or dustproof. Do not expose the scale to splashing water. Do not install the scale in an extremely humid or dusty environment.
6) If the scale is sealed, do not break the seal. If you break the seal, the scale will not be considered legal for trade. In this case, contact your dealer.
7) Do not disassemble or modify the scale, you will void the warranty.

YCO-1105-06-02
DSR-400 Operation Manual
1
I Introduction
It only takes a few minutes to learn how to use your new Yamato scale. Please read the following
instructions carefully. They will assist you in understanding the various controls and operation of
the Yamato DSR-400.
II Specifications
Weighing system: Strain-gauge load cell
Capacity: 400 lb x 0.5 lb, 100 kg x 0.2 kg
Taring Range: Full scale
Platform: 12” (304 mm) W x 12.25” (310 mm) D x 2.25” (57 mm) H, stain-
less steel
Weight display: Single face display
Type: 7 segment LCD
Character size, etc.: 0.2” (6 mm) (W) x 0.5” (13 mm) (H), 4 digits
Power supply: 9V DC (the scale requires six “AA” size batteries) or AC input
(when using the AC adaptor.) *
Operating temperature: 32°F to 104°F (0 C to 40 C)
III Operation
III.A Control Panel
1) LCD Display Displays weight reading and error messages.
2) Unit Selection Key Press to toggle between lb / kg indications.
3) Net / Gross Key Press to toggle between Net / Gross weight.
4) ON/ZERO Key Turns the power on, and zeroes the display.
TARE Tares off the weight on the scale platform.
5) OFF Key To turn scale off, simultaneously press
lb
kg
N
G
keys.
6) Kilogram Mode Indicator Indicates the displayed weight is in kilograms.
7) Pound Mode Indicator Indicates the displayed weight is in decimal pounds.
8) Net Weight Indicator Indicates the displayed weight is a net weight.
9) Gross Weight Indicator Indicates the displayed weight is a gross weight
ON
123
4
5
6
7
8
9

YCO-1105-06-02
DSR-400 Operation Manual
The DSR-400 can use either six “AA” batteries or the in-
cluded AC adapter. To use the AC adapter, connect the
adapter plug into the jack on the same side of the DSR
base as the indicator cord. Then plug the adapter into a
standard 115V AC outlet.
To install batteries, remove the scale platform from the base,
press in the battery box cover latching tab and lift the
cover. Place six “AA” batteries into the battery box
according to the polarity markings in the case (+, -).
Replace the battery cover box and the scale platform.
III Operation
III.B Power
2
III.E Unit Selection
The DSR-400 has both decimal pound and kilogram display capability. The current mode of the scale
is indicated by the arrow heads in the LCD display. To toggle between the two modes, press the
lb
kg
key.
III.C Turning the Scale On and Off
Remove everything from the platform surface and press the
ON
O/T
key. The display will briefly display four eights. After
approximately three seconds, the display will automati-
cally set to zero.
Press
lb
kg
N
G
keys simultaneously. The display will go off. The scale can be programmed to auto-
matically shut off after being idle for two minutes, or the auto-off can be disabled. See the technical
manual to change this feature.
III.D Zero the Display
AC Jack
Battery Box Cover
The scale will automatically zero when turned on. If a value
is displayed when the platform is empty, press the
ON
O/T
key to zero the display. The maximum zero range
during power up is approximately full scale.

YCO-1105-06-02
DSR-400 Operation Manual
1) Begin with no load on the scale and the display reading
zero. Press the
ON
O/T
key to turn the scale on. If the scale
is already on, press the
ON
O/T
key to reset the display to
zero.
2) Place the item(s) to be weighed on the scale platform.
To toggle between the net and gross weights, press the
N
G
key.
III Operation
III.F Weighing
3
III.F.1 Basic Weighing
1) Begin with no load on the scale and the display reading
zero.
2) Place an empty container on the scale platform, wait for
the indication to stabilize and press the
ON
O/T
key. The
weight of the container will automatically be deducted,
the display will read zero.
3) Place the item(s) to be weighed in the container. The
weight displayed will be the net weight.
4) To toggle between the net and gross weights, press the
N
G
key.
5) To remove the tare and return to gross weighing, remove
all items from the platform and press the
ON
O/T
key.
III.F.2 Net Weighing (with automatic tare)

YCO-1105-06-02
DSR-400 Operation Manual
III.F.3 Batch Weighing (separate weighing of several items)
1. Remove any load from scale platform.
2. Press
ON
O/T
key to turn scale on.
3. If scale is already on, press the
ON
O/T
key to reset the display to zero.
4. Place the container on the platform and press the
ON
O/T
key. The weight of the container
(tare weight) will be deducted and the display will show zero.
5. Place the first item in the container until the desired weight is reached. Press the
ON
O/T
key.
6. Place the second item in the container until the desired weight is reached. Press the
ON
O/T
key. Repeat steps 3 and 4 as necessary.
4
Problem
The display continues to show
all 8s after the scale is turned
on.
The scale will not power on.
The keyboard does not func-
tion.
The displayed weight fluctuates
excessively.
Possible Cause
Vibration or an unstable
position or platform.
AC adapter malfunction.
Power board malfunction.
CPU board malfunction.
Keyboard connector loose.
Keyboard connector damaged.
Keyboard damaged.
CPU board malfunction.
Weighing assembly in contact
with wires or case.
Load cell connector loose or
damaged.
Power board malfunction.
CPU board malfunction.
V Troubleshooting and Error Messages
Solution
Remove source of vibration
or place scale on stable
platform.
Replace adapter.
Replace power board.
Replace CPU board.
Firmly insert connector.
Replace connector.
Replace keyboard.
Replace CPU board.
Reposition wires or case.
Reconnect or replace the
load cell connector.
Replace power board.
Replace CPU board.