Three Channel System; External Power Supply - Siemens LDS 6 Operating Instructions Manual

In-situ laser continuous gas analyzer
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3.4

Three Channel System

3.4.1

External Power Supply

The three channel version of LDS 6 uses an external power supply for the sensors. The
setup at the sensor site is the same as for one and two channel systems. Also the ATEX
version of the three channel LDS 6 is using an external power supply leaving the sensors
unaffected when a third channel is added. The external power supply is connected by adding
the pins into two corresponding screws of the 6 pole socket at the back of the central unit as
seen in the following figure.
L
N
Figure 3-4
Fuses: Central unit:100 ... 240 V: T2.5L250V
External power supply:100 ... 240 V: T1.25L250V
LDS 6
Operating Instructions, 01/2009, A5E00295894-05
24 V DC
+V
-V
Fuse
100-240 V AC
Schematics of the external power supply.
Installation Guidelines
3.4 Three Channel System
+
CH 1
24 V DC
+
24 V DC
CH 2
+
CH 3
24 V DC
35

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