Displaying Measured Values - Bender ISOMETER isoCHA425HV Manual

4.3

Displaying measured values

Overview
HiS Display
✓
± R k
✓
~ ± U L1 L2 = V
✓
± U L1
✓
± U L2
- ± R %
✓
U R = k
✓
The measured value are displayed in the history memory.
Displaying the current measured values
The standard display shows the currently measured value for R
other measured values. After 5 min at the latest the display switches back to the standard display.
ADVICE
The pulse symbol indicates a currently measured value. If this symbol does not appear, the
measurement is still ongoing 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 measuring range.
Insulation resistance R
1 k ... 2 M
The "+" or "–" sign appears, when an error of R
L1/+ or L2/– with |R%| ≥ 30 %.
System voltage U
0 V ... 1200 V
trueRMS
When U > 20 V , the "+" or "–" sign indicates the polarity at terminals "L1/+"
RMS
and "L2/–". The sign "~" indicates an AC system.
Residual voltage U
= V
DC 0...±1200 V
Residual voltage U
= V
DC 0...±1200 V
Fault location in %
–100 % ... +100 %
One-side insulation resistance R
1 k ... 2 M
calculated from U
Description
F
(L1/+ - L2/–)
n
trueRMS
(L1/+ - PE)
L1e
(L2/– - PE)
L2e
FU
and U if U > DC 40 V
L1e L2e n
. Press the up or down buttons to display the
F
isoCHA425HV_D00404_04_M_XXEN/10.2023
ISOMETER® isoCHA425HV
< 500 k is mainly detected at
F
25