Leds
Indicate
HIGH VOLTAGE
presence in the output
terminals
WARNING: Do not connect or disconnect the test leads during the measurement or when this
`
led
is lit.
Power supply
The MD-542 uses a rechargeable Ni-MH battery for power (4x 1.2 V).
WARNING: Use ONLY rechargeable batteries, Ni-MH AA size, 1.2 V each, with a capacity of
1.3 Ah up to 2.5 Ah. It is dangerous to use any other type of batteries!
Indicate that the Battery
charger is in operation
Indicate the selected test voltage
Indicates the unit of measured
value showed in the display.
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