User Manual
14 GMC-I Gossen-Metrawatt GmbH
Operating Overview – Connections, Keys, Rotary Switch, Symbols
Symbols of Rotary Switch Positions 
Switch
FUNC
Display Measuring Function
METRA
HIT
⏐
X-
TRA/ 
OUTDOOR
METRAHIT⏐
T
ECH
METRAHIT⏐
P
RO
METRAHIT⏐
B
ASE
V~ 0/4 V~ AC TRMS Alternating voltage, TRMS AC, full bandwidth ••••
Hz (V) 1 Hz ~ AC Voltage frequency, full bandwidth ••••
V~  2 V Fil ~ AC TRMS Alternating voltage, TRMS AC, with low-pass (1 kHz) •••—
Hz (V)    3 Hz Fil ~ AC Voltage frequency, with low-pass (1 kHz) •••—
V~ 1 M
Ω 0/4 V~ AC TRMS Alternating voltage, TRMS AC, full bandwidth, input 1 MΩ•••—
V~  1 V Fil ~ AC TRMS Alternating voltage, TRMS AC, up to 1 kHz, input 1 MΩ•••—
Hz (V)  2 Hz Fil ~ AC Voltage frequency, up to 1 kHz, input 1 MΩ•••—
Hz (V) 1 M
Ω 3 Hz ~ AC Voltage frequency, full bandwidth, input 1 MΩ•••—
V  0/2 V  DC Direct voltage ••••
V 1 V  DC AC TRMS Pulsating voltage, TRMS ( ) ••••
MHz 0/2 MHz (High) frequency @ 5 V~ • ———
% 1 % Keying ratio @ 5 V~ • ———
Ω
— Ω (Direct current) resistance ••••
0/2  Ω Continuity testing Ω with acoustic signal ••••
1
 V  DC Diode voltage ••••
Temp TC 0/2
°C Typ-K
Temperature thermocouple Type K ••••
Temp RTD 1 °C Pt100/1000 Temperature with resistance thermometer Pt100/Pt1000 • ———
  — nF Capacitance ••——
A 0/2 A  DC Direct current value •••—
A 1 A  DC AC TRMS Pulsating current value, TRMS AC DC •••—
A~ 0/2 A~ AC TRMS Alternating current value, TRMS AC •••—
Hz (A) 1 Hz ~ AC Current frequency •••—
0/2 A  DC  Direct current value with AC DC clip-on current sensor 1 V:1/10/100/
1000 A
— • — •
1 A  DC AC TRMS 
Pulsating current value, TRMS, with AC DC clip-on current sensor, see above
— • — •
0/2 A~ AC TRMS 
Alternating current strength, TRMS, with clip-on current sensor, see above
— • — •
Hz ( ) 1 Hz ~ AC  Current frequency — • — •
1kHz
1kHz
1kHz
1kHz
V
ACDC
V
AC
2
V
DC
2
+=
A
A
A
A










