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AO2000-LS25 LASER ANALYZERS | OI/AO2000-LS25-EN REV. D
•
The purge gas inlet must be connected to the Swagelok®
fitting
A
on the receiver unit. Keep gland
connection flange free.
•
The flow direction of the purge gas must be designed
according to Figure 1 on page 7.
•
The electrical inputs/outputs of the device must be routed
via a suitable interface relay. The interface relay is controlled
by the purging and monitoring unit and disconnects the
inputs / outputs on all poles in the event of a fault.
•
The operating instructions of the purging and monitoring
unit as well as other components of the pressurized
enclosure must be observed during installation.
•
The customer must check and, if necessary, set the process-
specific purge parameters (see Purge parameters for
pressurized enclosure on page 10) in the purging and
monitoring unit during commissioning.
Pressurized enclosure with nitrogen N
C
closest to the
Risk of suffocation
Risk of suffocation in the event of uncontrolled escaping
nitrogen.
•
A Purge gas entry from the transmitter unit
B Purge gas entry to the purging and monitoring unit
C Jumper connections
Figure 3: Purge gas connection to the receiver unit (N
If nitrogen purging is required for the measurement (e.g. in high-
temperature applications or small O
the purge gas connection must be as shown in Figure 3. The
connection of the transmitter unit is unchanged.
WARNING
Ensure that all purge gas lines are tight and that the purge
gas emerges into the outside air in a controlled fashion.
2
as purge gas)
2
/ H
O measuring ranges),
2
2
11
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