Fluke Biomedical 943-27 Detector - Manual (Page 15)

Maintenance, Calibration and Troubleshooting
Maintenance
4
4-1
Section 4
Maintenance, Calibration and Troubleshooting
4.1 Maintenance
The 943-27-15 Detector is designed to operate for extended periods of time with no scheduled
maintenance required. Operation may be verified by periodically actuating the check source (provided
with the detector and sampling assembly) and observing the response of the unit. If the response varies
by more than 50% of the normal value, further troubleshooting may be required. If a problem develops,
troubleshoot the unit per Section 4.3 and the drawings in Appendix B.
Periodically, approximately every 18 months, it is suggested that the detector be re-calibrated.
4.2 Calibration
Electronic Adjustments
There are no user adjustments available on the 943-27 Detector. The detector high voltage is determined
during calibration and is provided by the associated readout/controller.
Point source Calibration
WARNING
The calibration procedures require the use of high activity
beta emitting button sources. These sources are intended
solely to provide a beta radiation field. They should be
used only by persons who have been trained in the
appropriate safety procedures to be followed in the
presence of beta radiation and the proper interpretation of
the data. Notify the plant Health Physicist prior to the use
of these sources.
SPECIAL NOTE
Due to the activity of these sources, possession of these
sources requires a USNRC Byproduct Material License or
Agreement State License, as defined in Title 10 of the
Code of Federal Regulations.