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GMC-I Messtechnik GmbH
Operating Overview – Connections, Keys, Rotary Switch, Symbols
Symbols and Functions for Rotary Switch Positions (MD: main display, AD: auxiliary display, MR: measuring range)
Switch
FUNC Display
Measuring function
Sub-Function
V~
0/4
V~AC TRMS / HZ
A~AC TRMS
(0/2)
CLiP=OFF: alternating voltage, AC TRMS, full bandwidth
CLiP=ON: alternating current via current clamp sensor, TRMS AC value
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
V~
1
Hz ~AC TRMS /
(1)
CLiP=oFF: voltage frequency, to 300 kHz / CLiP=ON current frequency sensor
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
V~
2
V filter ~AC TRMS / Hz man
Alternating voltage, AC TRMS, with low pass filter (1 kHz)
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
dB
3
dB ~AC TRMS
Alternating voltage level measurement
DATA/MIN/MAX
V
0/4
V DC /
(0/2)
CLiP=OFF: direct voltage measured directly / CLiP=ON: via current clamp sensor
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
V
1
V DC+AC TRMS / CF /
(1)
CLiP=OFF: pulsating voltage, direct, TRMS / CLiP=ON: via current clamp sensor
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
V
2
V DC EVENTS
Direct voltage events
DATA/MIN/MAX
,
MAN/AUTO
V
3
V~AC TRMS EVENTS
Alternating voltage events
DATA/MIN/MAX
,
MAN/AUTO
PQ
0/2
MAinS: V DC+AC TRMS
Mains quality: events (type, start time, date, duration, value)
Event querying:
keys
1
thd % ~AC TRMS / V /
thd % ~AC TRMS / A /
(0/2)
Main display: total harmonic distortion relative to fundamental frequency as %
Auxiliary display: RMS value for the total signal in V
Query harmonics 1 through 15: RMS values
and distortion via
keys
MHz
0/2
MHz
(High) Frequency at 5 V~ up to 1 MHz
DATA/MIN/MAX
,
MAN/AUTO
%
1
%
Duty cycle at 5 V~
DATA/MIN/MAX
0/3
(DC) resistance
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
nS
1
nS
Conductivity (in nano-Siemens)
DATA/MIN/MAX
2
RPE
Low-resistance measurement with acoustic signal where Iconst = 3 mA
DATA/MIN/MAX
,
ZERO
0/2
Continuity test,
, with acoustic signal where Iconst = 1 mA
DATA/MIN/MAX
,
ZERO
1
V DC
Diode voltage up to max. 6 V where Iconst = 1 mA
DATA/MIN/MAX
Temp. TC
0/2
C, type K
Temperature, type K thermocouple
DATA/MIN/MAX
Temp. RTD
1
°
Pt100
Temperature with Pt100 / Pt1000 resistance sensor
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
0/2
nF
Capacitance
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
m
1
km
Cable length
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
W
0/2
W DC+AC TRMS / V+A / PF
Power (active, reactive, apparent power) / v current / power factor
DATA/MIN/MAX
,
MAN/AUTO
, W – VA – VAr: vw
Wh
1
Wh DC+AC TRMS energy time Energy: energy (active, reactive, apparent energy) / on-time
Mean: average power / max: maximum power
MAN/AUTO
,
Wh – VAh – VArh:
vw
keys
Energy – Mean – max:
,
ZERO =
reset
A
0/4
A DC+AC TRMS /
(2)
CLiP=OFF: pulsating current, direct, TRMS AC+DC, CLiP=ON: current clamp transformer
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
A /~
1
A
DC /
(3)
CLiP=OFF: direct voltage, direct, CLiP=ON: direct voltage via current clamp trans.
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
A~
2
A~AC TRMS / Hz /
(0/4)
CLiP=OFF: alternating current direct, TRMS AC / current frequency,
CLiP=ON: alternating current via current clamp trans. // temperature: MB 6 A and 10 A
DATA/MIN/MAX
,
MAN/AUTO
,
ZERO
A /~
3
thd % ~AC TRMS / A
(1)
Main display: total harmonic distortion relative to fundamental frequency as %
Auxiliary display: RMS value for the total signal in A
Query harmonics 1 through 15: RMS values
and distortion via
keys
1kHz