Dc Current; Ac Current; Maintenance; General Maintenance - Mastech MS8265 Operator's Instruction Manual

4.2.9 DC Current

Range
Resolution
0.1μA
2mA
10μA
200mA
10A 1mA
Overload protection: Resettable fuse (F400mA/250V).
10A range: F10A/250V fuse
Max. input current: 200mA dc or 200mA ac rms for
mA range, 10A dc or 10A ac rms for 10A ranges.
For measurements>5A, 4 minutes maximum ON to
measure 10 minutes OFF; Above 10A unspecified.

4.2.10 AC Current

Range
Resolution
0.1μA
2mA
10μA
200mA
10A 1mA
Overload protection: Resettable fuse (F400mA/250V).
10A range: F10A/250V fuse
Max. input current: 200mA dc or 200mA ac rms for
mA range, 10A dc or 10A ac rms for 10A ranges.
For measurements>5A, 4 minutes maximum ON to
measure 10 minutes OFF; Above 10A unspecified.
Frequency Range: 40Hz-400Hz
Response: Average, calibrated in rms of sine wave
Accuracy
±(0.5% of rdg +10 digits)
±(2.0% of rdg +20 digits)
Accuracy
±(0.8% of rdg +20 digits)
±(1.2% of rdg +20 digits)
±(2.5% of rdg +50 digits)
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5. Maintenance

Do not attempt to repair or service your Meter
unless you are qualified to do so and have the
relevant calibration, performance test, and service
information.

5.1 General Maintenance

To avoid electrical shock or damage to the
meter, do not get water inside the case.
Remove the test leads and any input signals
before opening the case
Periodically wipe the case with a damp cloth and mild
detergent. Do not use abrasives or solvents.
Dirt or moisture in the terminals can affect readings.
To clean the terminals:
• Turn the meter off and remove all test leads.
• Shake out any dirt that may be in the terminals.
• Soak a new swab with a cleaning and oiling agent
(such as WD-40).
• Work the swab around in each terminal. The oiling
agent insulates the terminals from moisture-related
contamination.
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