Electrical And Optical Installation Of Cd 6C - Siemens LDS 6 Operating Instructions Manual

Installation Guidelines
CD 6C – Water vapor sensor for LDS 6
A5E00912721-01
5. Connect the nitrogen inlet (1) both on the transmitter and
receiver side to the customer dry nitrogen net.
6. Check that all the parts are in place and the connections are
tightened properly, especially the parts being removed during
the alignment procedure.
7. Open the nitrogen supply to the sensors.
8. Allow the entire system to dry down after installation.
Depending on installation type it can take from an hour up to
several hours to remove residual moisture from the sensors
and customer interface.
NOTE
The recommended nitrogen flow rate to each sensor is 10 liter/min.
The absolute minimum rate is 6 liter/min otherwise the measure-
ment value might be faulty.

3.1.2 Electrical and optical installation of CD 6C

Transmitter
Install the cables, hybrid and loop cable, at the transmitter sen-
sor. Cables are fixed in the sensor with gaskets. Always use lubri-
cant on the gaskets before installing, otherwise these will be very
difficult to remove later. Multi-mode fibre (SMA connector) and
24 V are just connected straight through to the receiver.
NOTE
Always protect the single-mode fibre (E2000 connector) from dust.
Do not remove the plastic vial until the cable is firmly fastened in
the sensor.
Figure 3.3 Connections in the transmitter
Receiver
Install the loop cable in the receiver sensor. Cables are fixed with
gaskets. Always use lubricant on the gaskets before installing,
otherwise they will be very difficult to remove later.
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