Amprobe DGC-1000A Ground-Resistance-Tester - Manual (Page 6)

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IV. LCD DISPLAY
1. Function Display current selected function or current record number.
2. Digits Display value from 0 to 9999 with decimal point.
3. Ohm Symbol will be shown in

and alarm functions.
4. mA Display ground leakage current in mA or A
5. This symbol will be shown if the rotary switch is set at the
alarm position.
6. NOISE: When ground resistance tester senses noise in the
ground electrode or ground rod, this symbol will be
shown in LCD
7. Jaw Open When the jaw is open during measurement, this symbol
and the word OPEN will be shown in LCD.
8. Low Battery When the battery voltage is lower than required, this
symbol will be shown in LCD.
9. NO. Indicate the READ function.
10. REC Indicate data logging is in progress.
11. AP If this symbol is displayed in LCD, that means the unit
will be turned off in 4 to 6 minutes.