Zoomlion ZT20J, Service And Maintenance Manual

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leads are reversed. Check the voltage prediction value, signal position, and whether the lead is properly
connected to the device under test. Also check that the lead of the COM port is grounded or the negative
signal is connected, and that the lead of the other port is connected to the positive signal.
7.2.5 Range
M = mega = 1,000,000 * (displayed number).
k = thousand = 1,000 * (displayed number).
m = milli = (displayed number) /1,000.
μ= micro = (displayed number) /1,000,000.
For example:1.2 kΩ ＝ 1200Ω.
For example:50 mA = 0.05 amps.
7.2.6 Voltage measurement
Figure 7-1 Voltage measurement (direct current)
If the multimeter cannot automatically adjust the range, set the correct range (refer to the multimeter
operation manual).
Make sure the multimeter leads are securely connected.