10.2 Cleaning
175
10
Chapter 10 Maintenance and Service
To clean the instrument, wipe it gently with a soft cloth moistened with water or
mild detergent. Never use solvents such as benzene, alcohol, acetone, ether,
ketones, thinners or gasoline, as they can deform and discolor the case.
10.2 Cleaning
10.3 Error Indication
Display Description
Err02
Zero-Adjust Range Error The measured resistance value or measured voltage
value prior to zero adjustment exceed 1000 dgt.
Err10
Execution Error The data portion of a remote command is invalid.
Err11
Command Error The command portion of a remote command is invalid.
Err90
ROM Error An internal program error occurred. Repair is required.
Err91
RAM Error An internal RAM error occurred. Repair is required.
Err92
EEPROM (Adjustment Data)
Error
Adjustment data is corrupted. Repair is required.
Err95
A/D Communications Error The A/D converter is damaged. Repair is required.
- - - - -
This indicates a measurement fault. It appears in cases of a disconnected test lead, poor
probe contact or when the test object’s measured value is far above the measurement
range.
The measurement fault signal is output from the ERR terminal of the EXT I/O connector.
The following causes should be considered:
• A test lead may not be connected to the test object
• Test object resistance may be too very large for the measurement range
Example: Measuring 20
with the 300 m range
• Any of the SOURCE-H, SOURCE-L, SENSE-H or SENSE-L leads may be discon-
nected or poorly connected
• The probe may have a high contact resistance
See " Measurement Fault Detection"( p.36)
• The contact failure circuit protection fuse may have blown due to test lead damage,
excessive wear, or impurities.
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