Maintenance; Cleaning The Meter; Replacing The Probe; Replacing The Battery And Fuses - Mastech MS8321A Manual

5. Maintenance

5.1 Cleaning the Meter

Warning
Before opening the back cover, turn off the meter
and disconnect test leads from any circuit.
Clean meter with a damp cloth and mild detergent; do
not use chemical solvents on the meter.Dirt or moisture
on the input jacks can affect the reading of the meter.
To clean the input jacks:
• Turn the rotary switch to OFF and remove test leads.
• Remove all dirt from the input jacks.
• Use a detergent or lubricant with a cotton swab to clean
the jacks.Use a new cotton swab for each jack to prevent
cross contamination.

5.3 Replacing the Probe

If insulation on probe is damaged, replace it.
Use meet EN 61010-031 standard, rated CAT III 600V, 10A or better probe.
WARNING
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5.2 Replacing the Battery and Fuses

1. Under normal conditions, it is unnecessary to replace the fuse.
Don't replace it until the probes are unplugged and the power is
shut down. Take out the two screws of the rear cover to remove
the housing.
2. The specification of the fuse is:
F1 250mA/250V, F2 10A/600V
The replacement should be of the same specification.
3. The battery for this multimeter is 9V NEDA 1604 or 6F22.
The replacement should be of the same specification.
4. Don't put the instrument into use until the rear cover is screwed
after replacing battery or fuse.
To avoid electric shock, make sure the probes are disconnected
from the measured circuit before removing the rear cover.
Make sure the rear cover is tightly screwed before using the
instrument.
DONGGUAN HUAYI MASTECH COMPANY LIMITED
Yuliangwei Industrial Area,Qingxi
Dongguan,Guangdong,China
http://www.p-mastech.com
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Warning
00-05-3595