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8. Operating Instructions
8.1 Preparation for Measurement
8.1.1 Battery Voltage Check
Press the POWER button to turn on the tester and enter the insulation measurement interface without connecting
the power adapter. When the battery indicator shown at the upper left on the LCD is 0 level (“ ”), it indicates
low battery. See 7.1 Display Indicators for the corresponding battery voltage of each level. When the battery
voltage Is below the lower limit of the operating voltage, the accuracy cannot be guaranteed. No measurement
can be performed even the TEST button is pressed down. Please replace the batteries or insert the power adapter.
8.1.2 Test Lead Connection
1) Insert the red test lead into the LINE terminal, black into the EARTH terminal.
2) Insert the green test lead into the GUARD terminal (leave the GUARD terminal unconnected unless
establishing a guard is necessary).
Note: Do not insert the green or black test lead into the LINE terminal. This cannot enable measurement
and may pose an electric shock.
8.2 Basic Measurement Operation
8.2.1 Starting up
Press the POWER button to turn on the tester , as shown in Picture 4.
Picture 4
The tester enters the continuous measurement state of insulation resistance by default, as shown
in Picture 5.
Picture 5
G9312 User Manual
G9312 User Manual
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