Endress+Hauser Topclean S CPC30, Руководство по эксплуатации

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Topclean S 7 Maintenance
Hauser 119
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
• Cleaning and monitoring of the sensor chap. 7.1
• Sensor calibration chap. 7.2
• Maintenance of cables and connections chap. 7.3
• Maintenance of assembly chap. 7.4
• Maintenance of the Topclean S control unit CPG30 chap. 7.5
The transmitter CPM153 does not contain wear parts and is maintenance free.
Measuring point maintenance comprises:
• Cleaning the assembly and electrode
• Inspecting cables and connections,
• Calibration (see page 112).
Personal safety instructions
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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 CPG30 and the retractable assembly work with compressed air and motive water. Switch off
the air and water inflow before working on screw unions, valves or pressure switches.
• The non-Ex versions of the CPM153 and CPG30 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 required under mains voltage, this may only be carried out by an electrician, a second
person must be present for safety reasons.
• Switch contacts may be powered by separate circuits. Also de-energise these circuits before you
work on the terminals.
Safety instructions for system and process
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Caution!
• 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.