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11.2 Cleaning
180
Before Returning for Repair
If abnormal operation occurs, check the following items.
Symptom
Check Items
The display does not ap-
pear when you turn the
power on.
•
Is the power cord disconnected?
•
Are connections made correctly?
Verify that the power cord is con-
nected properly.
(p. 22)
Keys do not work.
•
Is any key being held down?
•
Is Key-Lock enabled (M.LOCK or F.LOCK dis-
played)?
•
Is remote control communication enabled (RMT dis-
played)?
•
Is the EXT I/O KEY_LOCK signal asserted (Low
level)?
Verify key operation.
Cancel Key-Lock (p. 60)
Switch to local control (p. 104)
De-assert the KEY_LOCK signal
(High level).
Measured values are
unstable.
•
Is the measurement object a power transformer or
other large inductance?
•
Are the cables and measurement object adequately
shielded?
"Appendix 3 Unstable Measure-
ment Values" (p. A3)
Measured values are
shifted.
•
Is zero-adjust enabled?
•
Are the CUR and POT terminals connected before
contacting the measurement object?
•
Is the measured object calibrated correctly?
•
Is the GUARD terminal drawing more than 10 mA?
(the GUARD terminal shield may be contacting a
BNC terminal)
•
There may be a large thermal emf.
If the cause is unknown
•
Try performing a system reset (p. 67). All settings are returned to their factory defaults.)
11.2 Cleaning
• To clean the instrument, wipe it gently with a soft cloth moistened with water or mild deter-
gent. Never use solvents such as benzene, alcohol, acetone, ether, ketones, thinners or
gasoline, as they can deform and discolor the case.
• Wipe the LCD gently with a soft, dry cloth.
Содержание RM3542
Страница 2: ......
Страница 6: ...Contents iv ...
Страница 16: ...Operating Precautions 10 ...
Страница 26: ...1 3 Screen Organization 20 ...
Страница 32: ...2 3 Turning the Power On and Off 26 ...
Страница 46: ...3 8 Confirming Faulty Measurements 40 ...
Страница 64: ...4 12 Compensating for Thermal EMF Offset Offset Voltage Compensation OVC 58 ...
Страница 84: ...6 4 Auto Exporting Measured Values at End of Measurement Data Output Function 78 ...
Страница 90: ...7 3 Printing 84 ...
Страница 172: ...9 10 Device Compliance Statement 166 ...
Страница 190: ...11 4 Disposing of the Instrument 184 ...
Страница 200: ...Appendix 5 Dimensional Diagram A10 Appendix 5 Dimensional Diagram ...
Страница 214: ...Index Index 4 ...
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Страница 218: ......