Fluke Biomedical 451P - Manual (Page 23)

Ion Chamber Survey Meter
Operation
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RS-232
hms03.eps
Figure 5. Location of RS-232 port
Operational check
Fluke recommends an operational check upon receipt of the Survey Meter and
before each use. Monitor the start sequence. These results indicate the device is
operating correctly:
• There are no error messages in the startup sequence.
• The display does not freeze (showing only the firmware number).
• The Survey Meter gets to the background level within 2 minutes.
Optional Check Source Use
For more testing use the check source (Fluke part number: 3463380).
To check the device, do the following:
1. Turn on and initialize Survey Meter.
2. After the self-test completes, wait for 1 minute.
3. Place check source on the white dot on the right hand side of the case.
4. Hold source in position until reading stabilizes and then record the reading.
This is your baseline measurement. Perform all subsequent operational checks
in the same manner with the source in the same position. Each subsequent
check source measurement should be within 30 % of the recorded baseline
measurement.