Polimaster PM2010, Руководство по эксплуатации

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4 MAINTENANCE
4.1 General guidelines
4.1.1 The device maintenance is performed by specially trained personnel which have
finished the training and have the experience in maintenance.
4.1.2 The maintenance is to be carried out in due time to provide the device readiness for
operation and maximum service life.
4.1.3 The maintenance is carried out:
- when the device is delivered by the manufacturer;
-
in the course of operation.
4.2 Safety measures during maintenance
4.2.1 The TSM module includes the beta radiation source. The TSM module design
ensures the operation safety of personnel without using special radiation shields. The radiation
background level on the device surface is within the natural background values.
WARNING! It is forbidden to disassemble the ionization chamber and to take out
the beta radiation sources without a special need.
4.2.2 After the beta radiation source service life, indicated in source passport (Appendix
B) is expired, it should be replaced by a new one. The radioactive source replacement should
be performed by the specially trained personnel of the manufacturer (personnel of A group).
4.2.3 The utilization of used sources should follow a determinate order observing the
requirements of handling radioactive materials.
4.3 Maintenance procedure
4.3.1 When the device is put into service, as well as during operation the scheduled
maintenance should be provided. A list of activities and the time intervals between their
fulfillment are given in the Table 2.
Table 2
List of activities Time intervals between activities
1 Cleaning of gas systems and
ionizing chamber:
-
detection of
organophosphorus
substances
- detection of arsenic
–
containing substances
when the device is delivered by the manufacturer;
1 year;
1 year
2 Replacement of filtering
elements of filter
2.5 years
3 Replacement of radioactive
source
5 years
4 Decontamination of device as needed, but at least once a year