Endress+Hauser TopClean S CPC 30, Руководство по эксплуатации

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TopClean S CPC 30 7 Maintenance
Hauser 91
7 Maintenance
Maintenance of a measuring point with TopClean S comprises:
•
Compliance with safety instructions concerning:
– Personal safety
see below
– System and process see below
•
Sensor cleaning and monitoring chap. 7.2
•
Sensor calibration chap. 7.3
•
Maintenance of cables and connections chap. 7.4
•
Maintenance of the assembly chap. 7.5
•
Maintenance of the TopClean S control unit CPG 30 chap. 7.6
The transmitter CPM 153 does not contain wear parts and is maintenance free.
Measuring point maintenance comprises:
•
Cleaning the assembly and electrode
•
Inspecting cables and connections
•
Calibration (s. page 94).
Personal safety instructions
#
Warning!
•
If you have to remove the electrode, assembly or parts of the assembly during
maintenance, pay attention to the process-side hazards caused by pressure,
temperature and contamination.
Wear protective equipment appropriate to the possible dangers.
•
The CPG 30 and process retractable assembly work with compressed air and motive
water. Switch off the air and water inflow, before working on threaded joints, valves or
pressure switches.
•
The non-Ex versions of the CPM 153 and CPG 30 work primarily with mains voltage.
De-energise the devices before you open them. Check that there is no voltage and
secure the switch(es) against switch-on. These measures are not necessary with the
24 VDC/AC version.
•
If work is essential under mains voltage, this may only be carried out by an electrician,
but a second person must be present for safety reasons.
•
Switching contacts may be powered by separate circuits. Also de-energise these
circuits before you work on the terminals.
Safety instructions for system and process
!
Note!
•
Remember that any maintenance work on the device, cabling, assembly or sensors
may have impacts on process control or the process itself.
•
All measures which influence current outputs, relay contacts or communication should
be discussed with a superior beforehand.