User manual
74 GMC-I Messtechnik GmbH
Mains Connection Test — 3-Phase System — LCD Connection Pictographs
is dis-
played
U
(3-phase measurement)
Clockwise rotation
is dis-
played
U
(3-phase measurement)
Counter-clockwise rotation
is dis-
played
U
(3-phase measurement)
Short between L1 and L2
is dis-
played
U
(3-phase measurement)
Short between L1 and L3
is dis-
played
U
(3-phase measurement)
Short between L2 and L3
is dis-
played
U
(3-phase measurement)
Conductor L1 missing
is dis-
played
U
(3-phase measurement)
Conductor L2 missing
is dis-
played
U
(3-phase measurement)
Conductor L3 missing
is dis-
played
U
(3-phase measurement)
Conductor L1 to N
is dis-
played
U
(3-phase measurement)
Conductor L2 to N
is dis-
played
U
(3-phase measurement)
Conductor L3 to N
Connection Test — Earthing resistance (battery operation)
is dis-
played
RE Standard display without connection messages
is dis-
played
PRO-RE RE
Interference voltage at probe S > 3 V
Restricted measuring accuracy
is dis-
played
Messza
nge
RE
Interference current/measuring current ratio > 50 at RE(sel), 1000 at RE(2Z)
Restricted measuring accuracy
at RE(sel): Interference current > 0,85 A
or Interference current/measuring current ratio > 100
➭ no measured value, display RE.Z – – –
is dis-
played
PRO-RE RE
Probe H not connected or RE.H > 150 kΩ
➭ no measurment, display RE – – –
RE.H > 50 kΩ or
RE.H / RE > 10000
➭ Measured value is displayed, restricted measuring accuracy
is dis-
played
PRO-RE RE
Probe S not connected
or RE.S > 150 kΩ
or RE.S x RE.H > 25 MΩ²
➭ no measurment, display RE – – –
RE.S > 50 kΩ or
RE.S / RE > 300
➭ Measured value is displayed, restricted measuring accuracy
is dis-
played
PRO-RE RE
Probe E not connected or RE.E > 150 kΩ, RE.E/RE > 2000
➭ no measurment, display RE – – –
RE.E/RE > 300
➭ Measured value is displayed, restricted measuring accuracy
Status
Test
plug
Meas.
Adapter
Position of the
Function Switch
Function / Meaning
N
PE
L