KYORITSU KEW 6016 Instruction Manual page 27

4 Attach the test leads to the circuit or the appliance under test (see Figs 20 & 21)
Fig.20 Example of Insulation resistance test on 4 wire-3 phase system.
5 If the "Live Circuit" warning is displayed on the LCD and/or the buzzer sounds, do
not press the test button but disconnect the instrument from the circuit. Make the circuit
dead before proceeding.
6 Press the test button, the display will show the insulation resistance of the circuit or the
appliance to which the instrument is connected.
7 Note that if the circuit resistance is greater than 20MΩ , the instrument will autorange to the
200MΩ range. If it is greater than 200MΩ at the 500V or 1000V range,  i t will autorange to
the 2000MΩ range.
8 When testing is complete release the test button before disconnecting the test leads from
the circuit or from the appliance. This will ensure that the charge built up by the circuit or the
appliance during insulation test is dissipated in the discharge circuit. In the discharging
process, "Live Circuit" warning will be displayed on the LCD and the live circuit warning
buzzer will sound.
MΩ
1000V
M Ω
1000V
Fig.21
24