HT instruments M71 - Manual (Page 7)

M71
EN – 6
4. WORKING INSTRUCTIONS
4.1. INSTRUMENT DESCRIPTION
CAPTION:
1. Inputs
2. Display
3. ON/OFF key
4. CAL key
5. Switch of test mode
6. AUTO key
7. GO key
Fig. 1: Instrument's front panel
Key to switch on and off the instrument.
CAL
CAL key to effect zero setting of cables under modes EARTH-2W e EARTH-
3W.
AUTO
AUTO key to start/stop the mode detecting critical measuring conditions (high
electric noise) with automatic updating of measuring time.
GO GO key to start measurement.
Switch to select measuring mode.