ISHIDA CB-300 Electronic balance User manual

ISHIDA SCALES
C8 .. 300/600
Electronic Balance
SERVICE MANUAL
ISHIDA SCALES MFG.CO.g LTD ..
44 SANNO~CHO SHOGOIN SAKYO-KU KYOTO 606 JAPAN
Ishida CB-300 CB-600 Service and calibration Manual

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TABLE OF CONTENTS
II 1 Introduction
1 .. 1 Specifications
' .. 1 External
View
II 2 Mechanical
Components
2-1
Packing
2-2 . Procedure
to Open Main Unit
2 .. 3 Load Cell Limit
Adjustment
II 3 Electrical
Components
3 .. ' Block Diagram
3-1
Main Board
3-3 Battery
(Option)
3-3 Load Cell
3 .. 4
ACAdapter
3-4
High-low Range
II
4 Electrical
Adjustments
4-1 Test Program
to Check AID
and Area Values
4-2 Area Setting
4 .. 3
Initial AID Value Adjustment
4-3 Span Adjustment
II 5 Maintenance
5-1 Main Circuit Board P-584
Replacement
5-2
Fuse Replacement
5-3 Troubleshooting
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Thank you.
C8-300/600 0 SERVICE 0 REV 0 i

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1 Introduction
SPECIFICATIONS
• CB-300 I
(B·600
Remarks
Capacity 300g
(1 50 g) I 600g (300g)
() indicates LOW range.
Min. Grad. 0.19 (0.05g) I 0.29 (0.19) Same as above.
Auto Zero Standard
feature.
Accuracy 1/3000
Display Ishida custom
made extra-large LCD.
Checker Buzzer rings and
weight display flashes
Function
when weight exceeds target weight.
Battery Level
Warning
"B" displayed and weight flashes
when battery level is low.
External Dim. 192 mm (D) x 190 mm (W) x 67 mm (H)
Platter Circular 1 Rectangular
Optional platters avail-
Dimensions 130
mm dia. 170
mm x 130 mm
able.
Electrical Standard
AC adapter. AC100V± 10%. Batteries
optional.
Power Batteries (nickel-cadmium).
Detector
Ishida high-performance load cell.
Carrying Case
Portable case is standard equipment.
EXTERNAL VIEW
C8-300/600 • SERVICE. REV (I
AC ADAPTER PLUG
POWER/RANGE
SWITCH
External View of Electronic Balance
1-1

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