20
Description of display elements
The display is divided into four display elements:
1. Digital display of measured value
2. Measuring function field to display measuring function
3. Unit field: V,
Ω
, k
Ω
, Hz
4. Special characters for operator guidance
Description of display symbols
U
ST
Interference voltage (AC + DC)
F
ST
Frequency of interference voltage
F
M
Frequency of measuring voltage
U
M
Measuring voltage limit 20/48 V
R
E
Earthing
resistance
R
H
Auxiliary earth electrode resistance
R
S
Probe resistance
R
K
Compensation resistance
R
1
, R
2
Low voltage measurement with polarity indication
R ~
AC- resistance
R*
Earthing impedance (measuring frequency 55Hz)
AFC Automatic-frequency-control
TEST
Measuring sequence in process
LIMIT Limit
value
> LIMIT
Limit value exceeded
Socket
recognition
Recognition of current transformer socket
Message of an exceeded limit with beeper
LO-BAT
Battery voltage too low, replace batteries.
2
1
3
4