Yamato Acuu-Weigh SPC-2002 Manuale utente
SPC-2002/5005 Technical Manual
YCO-1097-02-02
YAMATO CORPORATION
1775 S. Murray Blvd.
Colorado Springs, CO 80916 USA
Tel (719) 591-1500 Fax (719) 591-1045
YAMATO TECH CORPORATION
#112-19425 Langley By-Pass
Surrey, B.C. V3S 6K1 Canada
Tel (604) 533-2338 Fax (604) 533-0827
www.yamatocorp.com
Digital Food Scales
YCO-1097-02-02
SPC-2002/5005 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 the Operation Manual to ensure proper operation. Keep this Technical 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 1
III. Calibration 2
IV. Troubleshooting 3
V. Wiring Diagram 4
VI. Parts List 5
YCO-1097-02-02
SPC-2002/5005 Technical Manual
1
I Introduction
The SPC is a split range scale. It displays units of pounds and fractional ounces, decimal pounds,
continuous ounces, and grams. Two of these units can be selected by the dip switch setting (see
section II). The specifications for each unit are in the following tables.
SPC-2002
SPC-5005
The SPC can be powered by 6-AA alkaline batteries, a 9V transistor battery or an AC adaptor.
ALWAYS reconnect the AA battery holder when using the AC adaptor to prevent ELECTRICAL
SHORTING.Yamato recommends that the batteries be removed when the AC adaptor is being used.
Use only the AC adaptor supplied or an adaptor of the same output characteristics.
The SPC has an automatic-off feature that will turn off the scale after two minutes of non-use. The
feature is enabled and disabled by the dip switch setting (see section II).
II Set-up
Remove the rectangular plug at the rear of the scale to expose the four place dip switch shown below.
Example: Decimal lb / g mode with g displayed at power up, auto-off feature disabled.
Dip Switch functions:
Switch 1 and 2 select Switch 3 selects Switch 4 controls
units of measure gram/lb-oz preference auto-off feature
at power up
Set the switches to the desired combination and replace the rectangular plug.
Lower Range Increment Upper Range Increment
0.0 lb to 2.2 lb 0.002 lb 2.2 to 4.4 lb 0.005 lb
0 oz to 35 oz 0.05 oz 35 oz to 70 oz 0.1 oz
0 lb 0 oz to 2 lb 3 oz 1/8 oz 2 lb 3 oz to 4 lb 6 oz 1/4 oz
0 g to 1000 g 1 g 1000 to 2000 g 2 g
Lower Range Increment Upper Range Increment
0.0 lb to 5.5 lb 0.005 lb 5.5 to 11.0 lb 0.01 lb
0 oz to 88 oz 0.1 oz 88 oz to 176 oz 0.2 oz
0 lb 0 oz to 5 lb 8 oz 1/4 oz 5 lb 8 oz to 11 lb 0 oz 1/2 oz
0 g to 2500 g 2 g 2500 to 5000 g 5 g
1 2 3 4
High (H)
Low (L)
3 Switch#
H lb-oz mode
L gram mode
1 2 Switch#
H H lb-oz / g
H L cont. oz / g
L H dec. lb / g
L L gram only
4 Switch#
H disable auto-off
L enable auto-off*
*The scale will shut off after
2 minutes of non-use.
YCO-1097-02-02
SPC-2002/5005 Technical Manual
III Calibration
1. With the scale off, hold down the ON
O/T key and press the oz
g
lb key
three times. Release the ON
O/T key. The scale should be displaying
the internal counts.
2. Press the ON
O/T key to zero the counts.
3. Place 2 kg, 4.41 lb or 70.5 oz (SPC-2002), or 5 kg, 11.02 lb or
176.4 oz (SPC-5005) on the scale platform. The counts should
read 15,000 to 18,000 counts.
NOTE: The SPC displays 10,000 as 00001. The most significant
bit appears in the upper right hand corner.
4. Press the ON
O/T key. The display will read “CAL” for about four
seconds.
5. The scale should return to normal operating mode and display the
calibration weight.
6. Remove the weight from the scale platform. The display should
indicate zero grams.
2
YCO-1097-02-02
SPC-2002/5005 Technical Manual
3
IV Troubleshooting
Problem
The scale will not power on.
The display continues to display
four eights after the scale is
turned on.
“Err” appears upon power up.
“ErrL” appears upon power up.
“Lo” displayed.
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.
Platform weight too high.
Platform weight too low.
Low batteries.
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.
Clear platform and restart.
Remove platform, clear
away any debris and rein-
stall platform.
Install new batteries.
Remove material.
Reposition wires, case or
platform.
Reconnect or replace the
load cell connector.
Replace power board.
Replace CPU board.
YCO-1097-02-02
SPC-2002/5005 Technical Manual
V Wiring Diagram
4
YCO-1097-02-02
SPC-2002/5005 Technical Manual
VI Parts List
5
YCO-1097-02-02
SPC-2002/5005 Technical Manual
6
VI Parts List
ITEM PART # DESCRIPTION QTY.
1 SHA-1520-001010 Cover, SS, Platform 1
2 MCH-5000-001020 Screw/Washer Assembly, Platform Plate 1
3 CHA-1550-200230 Adaptor, AC 1
4 SHA-1520-001030 Plate, Platform Support 1
5 SHA-1520-001050 Plug, Rubber, AC Adaptor 1
6 SHA-1520-001020 Washer, Rubber, .25 x .25 x .044 8
7 MCH-5000-001040 Screw/Washer, Upper Housing 4
8 SHA-1520-001060 Housing, Upper 1
9 SHA-1520-001070 Cover, Loadcell 1
10 SHA-1520-001093 Membrane, K-switch 1
11 SHA-1520-002094 Front Mask, SPC-2002 1
SHA-1520-002095 Front Mask, SPC-5005 1
12 SHA-1520-001075 Screw/Washer Assembly, Loadcell 4
13 SHA-1520-001080 Standoff, Housing 4
14 SHA-1520-001120 Screw/Washer/Spacer Assembly, CPU Board 4
15 SHA-1520-002101 Loadcell/CPU Board Assembly, SPC-2002 1
SHA-1520-002106 Loadcell/CPU Board Assembly, SPC-5005 1
16 SHA-1520-001110 AC Jack Assembly 1
17 SHA-1520-001040 Battery Connector 1
18 SHA-1520-001140 Cover, Battery, Assembly 1
19 SHA-1520-001130 Base Assembly 1
20 SHA-1520-001053 Plug, Rubber, Dip Switch 1
NP SHA-1520-001055 Foot, Rubber 4
NP SHA-1520-001160 Holder, Battery 1
NP = Not Pictured
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