Servomex 07931001B, Operator'S Manual

Page: 97 / 221

07931001B revision 6 © Servomex Group Limited. 2020
83
6.2 Removing the transmitter and receiver units from the
process
Before disconnecting the TU and RU from the process ensure
there is no risk from exposure to potentially harmful gases.
Before disconnecting the TU and RU from the process ensure
there is no risk from exposure to potentially harmful gases.
Before disconnecting the TU and RU from the process ensure
there is no risk from exposure to potentially harmful gases.
Ensure the analyzer is powered off before disconnecting the
TU and RU from the process.
Hint: When physically un-coupling and removing the transmitter and
receiver units care should be taken to avoid disturbing, and
potentially misaligning, the balljoint flange.
Note: The calibration cell is supplied with a TU / RU connection cable fitted
with terminal connectors. Therefore, when the TU / RU units are
unplugged and un-coupled from the process, the connectors, cables
and gland plates can remain with the process while the analyzer is
being calibrated. Cover / protect, gland plate, connectors and cables
during this time.
Laser Disconnection Checklist
Remove purge connections from TU and RU (if required)
Note that process window purge should be maintained
Loosen gland plates
Open covers of TU and RU, unclip electrical connectors and remove from
enclosure
Remove gland plates and cabling
Dismount TU and RU by loosening the 3 mounting bolts
Place cap cover on TU and RU
Mount blanking plates on mounting / alignment assembly
Move to calibration area