Page 1
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
Page 2
\
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
You can help improve this manual
by
calling
attention
to
errors
and
recommending improvements.
Please
convey
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comments
to
the nearest Ishida
Scales
regional
representatives.
Thank
you.
C8-300/600 0
SERVICE 0 REV
0
i
Page 3
\
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
Page 4
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