2
4. Please do remember to remove the pin of the test pen from the testing point when you are trying to exchange the
measuring function, pull/insert the plug of the test pen or turn on/ shut off the instrument.
5. Please pay attention to the safety warning signal displayed on the instrument: when the input voltage exceeds
DC1000V/AC750V, the buzzer will make a long alarm sound; and it will beep for three times when the input over the safety
voltage (36VDC/25VAC) under the measuring range of DC1000V/AC750V.
6. Please do not organize voltage measuring job when the voltage-to-ground reach 500V which showing on the reference
input terminus "COM" of the instrument.
7. It will be extremely dangerous in mistaken operation of voltage measuring even though there is a 500V fuse installed in the
20A measuring range
8. The test pen is definitely not allowed to touch the two terminal of the voltage source when choosing below measuring
function: current, resistance, continuity, diode, capacitance and so on.
9. Before conducting the resistance and diode/continuity test, please cut off the power of the measurand and make sure the
capacitor of the power supply circuit has discharge completely.
10. The instrument power must be cut off and the test pen must be removed from the circuit before replacing for the fuse in
the backboard of the instrument. And the fuse specification should be kept in same accordingly.
11. Product and accessories should not be reconstructed, separated or taken into other usage beyond the original function
design; meanwhile, all of the accessories or enclosure can't be random replaced.
12. Please don't electricize for ordinary batteries, and please replace the batteries when low power
prompted in the
screen.
Summary of Contents for ET201
Page 1: ...ET201 User s Manual ...