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Megger WM6 tester is a self-contained instrument designed to give
rapid and accurate resistance measurements. The hand-operated
generator is coupled with the latest electronic technology, thus
allowing theWM6 to test insulation at 500 V DC up to 200 MΩ. A
low-voltage, hand-cranked, AC brushless generator, which is easy to
turn by hand, is the power source. It is connected to a stabilized
electronic inverter to provide the test voltage. All resistance
readings are given directly on a moving-coil meter with a rugged
taut-band suspension movement, a white-on-black scale and an orange
"dayglow" pointer. This gives good legibility in most lighting
conditions. An electronic circuit is used to give a four-decade
resistance scale for insulation measurement.
There is a slider switch for selection of either the insulation
resistance or continuity functions, and the strong ABS plastic case
has a recess to accommodate the folded-away generator handle for
compactness. Two 4-mmterminal sockets are fitted into the side of the
case for connecting the test leads. |
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