Maintenance; Cleaning; Fuse Replacement - AEMC 6470-b User Manual

9.1
• To avoid electrical shock, do not attempt to perform any servicing unless
• To avoid electrical shock and/or damage to the instrument, do not get water
• Turn the instrument OFF and disconnect the unit from all circuits before
• Use specified spare parts only.
9.2
Use a soft cloth lightly moistened with soapy water. Wipe with a moist cloth and
then dry with a dry cloth. Never use alcohol, solvents or hydrocarbons.
9.3
• Fuse for terminal H (Z):
If this fuse is defective, the unit will no longer produce an output voltage, making it
impossible to perform resistance measurements.
To test this fuse, turn the switch to the mΩ position (2-Wire), connect measurement
leads to terminals H (Z) and E (X) and start a measurement. If the unit refuses to
operate and the symbol for terminal H (Z) blinks, the fuse must be replaced.
Ground Resistance Tester Model 6470-B
uality Products Online at:

Maintenance

Please make sure that you have read and fully understand the WARNING
section on page 3.
you are qualified to do so.
or other foreign agents into the case.
opening the case.

Cleaning

Disconnect the instrument from any source of electricity.

Fuse Replacement

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CHAPTER 9
MAINTENANCE
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