Bender ISOMETER isoCHA425 Manual page 18

Operation of the device
5.6 Menu "SEt"
5.6.1 Function configuration
Display Activation Setting value
FAC Ke Value range FAC
off 0 . . . 999
nEt on
S.Ct on
FAC
SYS
FAC = Factory setting; Ke = Customer settings
18
Description
Ke
0 Password for parameter setting
Monitoring system connection
during device test
Device test during device start
Restore factory settings
For Bender Service only
Operation of the device
5.7 Measuring value display and history memory
The pulse symbol indicates a current measured value. If this symbol does not appear, the
measurement is still running and the latest valid measured value will be displayed. The
symbols "<" or ">" will be displayed additionally to the measured value when a response
value has been reached or violated, or the measured value is below or above the measu-
ring range.
HiS Display
Insulation resistance
1 kW ... 2 MW

"
The
± R kΩ
mainly detected at L+ or L- with |R%| ≥ 30 %. In addition, it
must be U
System leakage capacitance

μF
C
nF
1
Nominal system voltage L+ - L-
50 V
trueRMS

± U L+ L- = V
In case of a DC system, the
U
RMS
Residual voltage L+ - PE

± U L+ V
=
0 V
DC
Residual voltage L- - PE

± U L- V
=
0 V
DC
Fault location in %

± R %
-100 % ...+100 %

:
The measuring value can be displayed in the history memory.
:
* Only these measuring values are permanently displayed (standard display). All other
measuring value displays are switching to the standard display after 5 min at the la-
test.
Description
R *
F
Resolution 1 kΩ
" " "
+ or - sign appears when a fault R < 100 kΩ is
F
≥ 20 V in the DC system.
n
C
e
μF nF
... 17 Resolution 1
U *
n
... 400 V Resolution 1 V
trueRMS trueRMS
" " " "
+ oder - sign indicates at
> 20 V the polarity at the terminals L+ und L-.
U
L+e
... ± 500 V Resolution 1 V
DC DC
U
L-e
... ± 500 V Resolution 1 V
DC DC
isoCHA425_D00352_01_M_XXEN/10.2019