YSI IQ SensorNet MIQ/IC2 Module - Manual (Page 13)

MIQ/IC2 Installation
3 - 5 ba76034e01 01/2012
Connecting external
meters via a power sup-
ply/isolator
The current outputs of external meters can be directly connected to the
current inputs of the MIQ/IC2 module via a power supply/isolator. Con-
necting via a power supply/isolator is necessary for measurements in
potentially explosive areas, for example.
If the connection data of the power supply/isolators is suitable, it is pos-
sible to supply up to two power supply/isolators with power via the feed-
in connector on the MIQ/IC2 module.
Fig. 3-3 Connection diagram for the connection of external meters situated in
potentially explosive areas to the MIQ/IC2 module
Warning
In potentially explosive areas, instruments may be installed, com-
missioned and operated by specialist electricians only, and ac-
cording to the relevant regulations and the instructions in the
relevant operating manuals.
IQ Sensor Net
2 x Power supply/isolator
Potentially
explosive area,
zone 1 / zone 2
4 … 20 mA
4 … 20 mA 4 … 20 mA
4 … 20 mA
Feed-in
1
5 7
3
4 8
11
12
11
12
-
+
-
+
-
+
-
+
Meter 1
Meter 2
-
+ 5
-
+
1 7
3
4 8
MIQ/IC2
- +
X7 X8
X9
X10
X11
X12
-
+
-
+