Bender ISOMETER isoHR685W Series, Manual

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Settings Settings
isoHR685W-x-I-B_D00261_05_M_XXEN/12.2021
34
9.2 (1.12.6.2) Midscale
Select the appropriate midscale. The following parameters can be set:
Calculation of the insulation resistance using the analogue output:
9.2 (1.12.6.3) TEST
The functional test of the analogue output can be activated or deactivated. In this way,
the analogue output is adjusted once for the entire range. This only applies to the man-
ual test and not to the cyclic device self test:
•Linear
The switching signal is linear to the insulation resistance in the indi-
cated measuring range.
•28 kΩ
•120 kΩ
The switching signal is analogue to the mid scale of 28 kΩ or 120 kΩ
on a measuring instrument.
Lower value
Analogue Output A
1
0 mA
4 mA
0 μA
0 V
2 V
Upper value
Analogue Output A
2
20 mA
20 mA
400 μA
10 V
10 V
•on
The manual test checks the analogue output function.
•off
The manual test does not check the analogue output function.
100 Ω 1 MΩ
I/U
20 mA / 400 μA
10 V
0 mA / 4 mA
0 V / 2 V
1 k
1 M
100
10
0 k
Ω
28 kΩ
120 kΩ
100 Ω ................100 kΩ
1 kΩ ........................................... 1 MΩ
I/U
20 mA / 400 μA
10 V
0 mA / 4 mA
0 V / 2 V
120 kΩ
28 kΩ
R
SKM
= 28 kΩ or 120 kΩ/Midscale
A
3
= Measured value analoge output
R
F
= Insulation fault in kΩ
R
F
= - R
SKM
(A
2
- A
1
) * R
SKM
A
3
- A
1
9.2 (1.12.6.4) Function
Select the appropriate setting for the analogue output. The following parameters can be
set.
9.2 (2.0) Data measured values
The ISOMETER® stores certain measured values for a specific period of time. You can view
these data in the "Data meas. value" menu. Navigate through the different views using
the
and buttons:
9.2 (3.0) Control
Controling of a device in operation:
•Insulation value
Depending on the measured insulation value, an analogue current
or voltage signal is provided at the output.
•DC offset
Depending on the measured DC offset, an analogue current or volt-
age signal is provided at the output. This setting can only be used
when
Linear
is selected in the "Midscale" menu.
1. isoGraph data
Displays the insulation resistance and chronological sequence.
1.1 Scaling: Hour
1.2 Scaling: Day
1.3 Scaling: Week
1.4 Scaling: Month
1.5 Scaling: Year
2. Insulation data
Displays the current insulation resistance, the minimum insulation
resistance measured and the system leakage capacitance.
3. IT system data
Displays the system phase-to-phase voltages and the mains fre-
quency (r.m.s. values)
4. IT system data
Displays the system phase-to-earth voltages
1. TEST
2. Reset
3. Start initial measurement
4. EDS
5. Device
6. ISOnet priority
DC+ Alarm Symmetrischer Alarm DC- Alarm
0 % 25 % 50 % 75 % 100 %
0 V/2 V
0 mA/4 mA
0 μA 10 V
20 mA
400 μA