Bender ISOMETER isoUG425 Kurzanleitung Seite 27

7.1 "AL" menu
Response settings
The response value menu "AL" contains the parameters R1 and R2, which are
used to monitor the insulation resistance. The setting for R1 must be greater
than that for R2. If the value of R
or R2, then an alarm message is triggered. The alarm is cleared if R
the values of R1 or R2 plus the hysteresis value (see table below).
The parameters U < and U > that monitor the mains voltage can also be acti-
vitated or deactivated in the "AL" menu. The maximum undervoltage value is
limited by the overvoltage value.
Display Activation
FAC
R1 <
R2 <
U <
off
U >
off
FAC = Factory setting;
isoUG425_D00220_02_Q_DEEN / 05.2018
F
Cs Bereich
R2 ... 100
1 ... R1
8 ... "U>"
"U<" ... 144
Cs = User setting
reaches or falls below the active values of R1
Setting
FAC Cs
50
25
8
140
Description
Pre-alarm value R
kΩ
Hys. = 25% / min. 1 kΩ
Alarm value
kΩ
Hys. = 25% / min. 1 kΩ
Alarm value
Undervoltage DC
V
Hys . = 5% / min. 1 V
Alarm value
Overvoltage DC
V
Hys. = 5% / min. 1 V
exceeds
F
an1
R
an2
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