Endress+Hauser Topclean S CPC30, Руководство по эксплуатации

Страница: 122 / 178

7 Maintenance Topclean S
122 Hauser
7.3 Maintenance of cables, connections and power supply
lines
Weekly checks (recommended timeframe):
Check the tightness of:
• Compressed air hoses and connections
• Motive water hoses and connections
• Hose and connection of cleaner bottle
• Multihose connections of the CPG30 and assembly
Monthly checks (recommended timeframe):
• Check sensor plug-in head for tightness and humidity (if the assembly is located in a humid
environment or outdoors).
• Check the sensor cable and particularly the outer insulation for breaks. Sensor cables which have
become damp on the inside must be replaced. Only drying is not sufficient!
• Check cable glands for tightness.
Six-monthly checks (recommended timeframe):
• CPM153: Retighten the terminals in the instrument.
• Also check if the interior and the PCBs are clean, dry and free from corrosion.
– If not: check the seals and screw unions for leaks and breaks.
• Check sensor plug-in head for tightness and humidity (if the assembly is located in a dry
environment; if it is located in a humid environment or outdoors, monthly checks are
recommended).
7.4 Maintenance of the process assembly
Weekly checks (recommended timeframe):
• Check the upper section of the assembly for compressed air tightness and mechanical damage.
• Check the process connection for tightness against the process and mechanical damage.
• Check the compressed air lines and connections for tightness and mechanical damage.
Annual checks (recommended timeframe):
• External cleaning if necessary. To replace seals, the assembly must be clean, dry and, if necessary,
decontaminated.
• With inductive feedback: test and, if necessary, set switching distance
• Replacement of the seals not in contact with the medium (recommended: as necessary, at least
once a year)
• Replacement of seals in contact with the medium (at least once a year, no further
recommendations possible, as extremely dependent on process, material and level of assembly
use)
• End test after completion of maintenance work:
– Does the assembly move to measuring and service position?
– Are maintenance and measuring feedback signals available? (Check using the CPM153 status
messages)
– Are process connection and compressed air connections tight?
– Does the meter display plausible values?
Replacement of the sealing elements is dependent on the type of assembly. Instructions for
replacement is contained in the appropriate service kit. You can find the necessary service kit in the
operating instructions of your assembly or in the special documentation "Cleanfit retractable
assemblies" (SD096C/07/a2).