Operational Check (Optional) - Fluke 05-443 User Manual

Operational Check (Optional)

The operational check is an important assurance that the radiation detector and
electronics are working correctly.
The manufacturer of this instrument suggests that an operational
check be performed on a regular basis. Local procedures may
supersede this suggestion.
For an operational check, use a radiation check source (not included, but
available). When not being used, store the check source in a secure area.
Most check sources present very minimal risks and are therefore
unlicensed (Exempt Quantity Sources reference: 10 CFR 30.71
Schedule B). The radioactive element is sealed (permanently
bonded or fixed inside a capsule) so you need not wash your hands
after handling. Radiation exposure while handling this source is very
minimal with no identified long or short term risks. Although the
amount of radiation given off by exempt sources is so low that it
presents no significant hazard, they should be handled with care and
respect. Time, distance, and shielding are the best ways to control
exposure.
1. Taking the source in hand, place it so that it is located on or near the center
(same location each time) of the detector. (For internal detector models, a
metal plate on the bottom of the chassis identifies the location of the internal
detector.) Hold it there for approximately 5 seconds or until the reading
stabilizes. Take note of the displayed level of radiation.
2. Verify that the reading is within 20 % of the last reading obtained. Remove
the source from the detector.
3. If an alarm is activated, ensure that all visual and audible devices (if
applicable) work correctly.
Note
Note
Digital Wall Mount-Area Monitor
Getting Started
9