Endress+Hauser Cleanfit CPA871, Руководство по эксплуатации

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Cleanfit CPA871 Commissioning
Hauser 43
5.3 Post-mounting check
Put the sensor into operation only if you can answer "yes" to the following questions:
• Are the sensor and cable undamaged?
• Is the orientation correct?
• Is the sensor installed in an assembly and not suspended from the cable?
5.3.1 Checking that the sealing system is intact
Check the seals after mounting or removing the sensor and when maintenance work is
performed. At regular intervals.
1. Move the assembly to the service position
2. If provided, open the ball valve of the service chamber outlet
 It is normal for a slight amount of medium to escape (connection between the
service chamber and process during insertion/retraction).
3. If provided, rinse the service chamber/sensor.
4. Observe the outlet. No more medium should escape after a short period of time.
5. If medium continues to escape, the sealing system is damaged; take the measuring point
out of service and perform maintenance on the assembly.
6 Commissioning
6.1 Preliminaries
Before commissioning, ensure that:
• all seals are correctly seated (on the assembly and on the process connection).
• the sensor is correctly installed and connected.
• the water connection at the rinse connections is correct (if present) or the rinse connections
are sealed.
L
WARNING
Risk of injury from high pressure, high temperature or chemical hazards if process
medium escapes.
‣
Check the connections to ensure they are sealed tightly.
L
WARNING
Process medium may escape during insertion/retraction.
‣
Check that the process seal is intact.
‣
Pipe-fit the rinse chamber outlet accordingly.
‣
Seal the rinse connections with dummy plugs.
Note that when the assembly is inserted/retracted, an open connection exists for a short
period between the process and service chamber.