Yamato DSR-200 User manual

DSR-200 Technical Manual
YCO-1052-03-00
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-1052-03-00
DSR-200 Technical Manual
Table of Contents
Before using the scale, carefully read, understand and follow the “Safety Instructions” described in this manual. Observe the advice
given in every section to ensure proper operation. Keep this 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 burned smell coming from the scale. Unplug the scale 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 cleanup.
7) Do not insert your finger into the gaps or holes in the scale. You may be injured.
SAFETY INSTRUCTIONS
I. Introduction 1
II. Set-up Procedures 1
A. Setting Auto-Off 1
B. Calibration 2
III. Troubleshooting 3
IV. Wiring Diagram 3

YCO-1052-03-00
DSR-200 Technical Manual
1
I Introduction
The DSR-200 displays units of pounds and kilograms. The specifications for each unit are in the
following table.
The DSR-200 can be powered by 6-AA batteries or by an AC adapter. Use only the AC adaptor sup-
plied or an adaptor of the same output characteristics. While operating the DSR-200 on batteries,
an automatic-off feature is enabled. It will turn off the scale after two minutes of non-use unless the
feature is disabled. The automatic-off is set in Set-up Mode (see section II.A.)
II.A Setting Auto-Off
II Set-up Procedures
1. With the scale off, press and hold the
ON
0
On key while pressing
the lb
kg unit key three times.
2. Release the
ON
0
On key. The display will now show “SLPx”.
SLP1 means the auto-off is enabled, while SLP0 indicates the
auto-off is disabled.
3. Press the
lb
kg
unit key to toggle between SLP0 and SLP1.
4. Pressing the ON
0On key will save the auto-off setting and enter
the Calibration Mode.
5. Press the
OFF
Off key to exit Set-up Mode.
Capacity Increment Accuracy Maximum Tare
200.0 lb 0.02 lb 0.04 lb 12.56 lb
100.0 kg 0.1 kg 0.2 kg kg
Set-up Mode is used to disable or enable the automatic-off feature and to enter Calibration Mode. While
in Set-up Mode, the
ON
0
On key is used as an “Enter” key and the lb
kg unit key is used as a “Select”
key.

YCO-1052-03-00
DSR-200 Technical Manual
1. Enter Calibration Mode (see section II.A.1-4.) The scale should
indicate between 500 to 5000 counts.
2. Press the lb
kg unit key to select the units the scale will be cali-
brated in.
3. Remove all items from the scale platform and press the ON
0On
key.
4. Place 200 lb or 80 kg on the scale platform. The scale should
indicate 13600 to 18000 counts for 200 pounds or 8000 to 16000
counts for kilograms. Note that the display will not indicate the
fifth digit, and the first digit will be flashing.
5. Press the
ON
0
On key. The scale will display “C200” for pounds
or “C 80” for kilograms.
6. When the calibration is complete, the scale will return to normal
weighing mode and indicate the weight on the platform.
II Set-up Procedures
2
II.B Calibration
kg
lb
N

YCO-1052-03-00
DSR-200 Technical Manual
3
III Troubleshooting
Problem
The scale will not power on.
The display continues to display
four eights after the scale is
turned on.
The displayed weight fluctuates
excessively.
Possible Cause
Batteries dead or incorrectly
installed.
AC adapter loose or malfunc-
tioning.
CPU board malfunction.
Vibration or an unstable
position or platform.
Material between the platform
and the scale body.
Weighing assembly in contact
with wires or case.
Load cell connector loose or
damaged.
Power board malfunction.
CPU board malfunction.
Solution
Test batteries. Reinstall if
needed.
Reseat adapter. Replace if
needed.
Replace CPU board.
Remove source of vibration
or place scale on stable
platform.
Remove material.
Reposition wires, case or
platform.
Reconnect or replace the
load cell connector.
Replace power board.
Replace CPU board.
IV Wiring Diagram
r
y
w
b
CN1
6PIN
CN1
MAIN PCB
A/D PCB
LOAD CELL
KEYPAD
BATTERY
BOX
AC ADAPTOR JACK