Operation Manual

12 GMC-I Messtechnik GmbH
Operating Overview – Connections, Keys, Rotary Switch, Symbols
2 Operating Overview – Connections, Keys, Rotary Switch, Symbols
1 Display (LCD) (see page 13 for significance of symbols)
2 MAN / AUTO shift key for manual/automatic measuring range selection
 Increase parameter values
“Operating Mode” menu: Selection of individual menu entries against
the direction of flow
3 ON / OFF | LIGHT key for switching device and display illumination on and off
4 FUNC | ENTER multifunction key
“Operating Mode” menu: Acknowledge entry (ENTER)
U
ISO ON / OFF Insulation resistance measurement
Key for switching insulation resistance measurement on and off
5  Increase measuring range or move decimal point to the right (MAN function)
6 Rotary switch for measuring functions (see page 14 for significance of symbols)
7 DAkkS calibration mark
8 Connector socket for ground / connected to ground
9 Connector socket for current measurement with automatic blocking
10 Connector socket for voltage, resistance, temperature, diode and
capacitance measurement with automatic blocking
11 DATA / MIN / MAX
Key for freezing, comparing, deleting the measured value, and for Min/Max function
 Decrease values
“Operating Mode” menu: Select individual menu entries in flow direction
12 MEASURE | SETUP Key for switching between measuring and menu functions
13 ZERO | ESC
Key for zero balancing
“Operating Mode” menu: Exit menu level and return to a higher level, exit
parameters entry function without saving
METRAHIT COIL only – Function COIL:
UCOIL ON / OFF Interturn short-circuit measurement as long as
key is being pressed, see chapter 5.8.
14  Decrease measuring range or move decimal point to the left (MAN function)
15 Power pack connector jack
16 Infrared interface
Chap. 3 
Chap. 6
1
3
4
16
5
6
9
Chap. 4.3
Chap. 3
Chap. 5
Chap. 7
Chap. 6

Chap. 3 ff.
Chap. 3
13
12
Chap. 4.1
10
2
 Chap. 4.1.2
14
8
Max. 1000 V!
11
15
Chap. 4.1 
Chap. 4.4 
Chap. 6 
Chap. 3.1 
7
Chap. 1.2