Bender ISOMETER iso685W-D User Manual

SettingsSettings
iso685-D-B_D00177_05_M_XXEN/07.2017
39
10.1 (1.10.6.1) Mode
The following values can be set for the operating mode of the analogue output
10.1 (1.10.6.2) Midscale
Select the appropriate midscale. The following parameters can be set:
Current output
•0-20 mA
Permissible load ≤ 600 Ω
•4-20 mA
Permissible load ≤ 600 Ω
•0-400 μA
Permissible load ≤ 4 kΩ
Voltage output
•0-10 V
Permissible load ≥ 1 kΩ
•2-10 V
Permissible load ≥ 1 kΩ
•Linear
The switching signal is linear to the insulation resistance in the indi-
cated measuring range.
M
+
X1 X1
A
M
+
X1 X1
V
10 kΩ 1 MΩ
I/U20 mA / 400 µA
10 V
0 mA / 4 mA
0 V / 2 V
Calculation of the insulation resistance using the analogue output:
10.1 (1.10.6.3) 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 manual
test and not to the cyclic device self test:
•28 k
Ω
•120 k Ω
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.
1 k
1 M
100
100 k
Ω
28 kΩ
120 k Ω
100 Ω 1 MΩ
I/U20 mA / 400 µA
10 V
0 mA / 4 mA
0 V / 2 V
120 k Ω28 kΩ
R
F
=
(A
2
- A
1
)
*
R
SKM
- R
SKM
A
3
- A
1
R
SKM
= 28 kΩ or 120 kΩ/midscale
A
3
= Measured value analogue output
R
F
= Insulation fault in kΩ

Bender ISOMETER iso685W-D Specifications

General

Brand	Bender
Model	ISOMETER iso685W-D
Category	Measuring Instruments
Language	English