Troxler 3440 - Page 110

6–30
SOURCE DECAY
The Source Decay function calculates a theoretical set of standard counts.
The radiation intensity of the source decreases by 2.3% per year. To
compensate, the last calibration standard counts are “corrected”
mathematically. The correction formula uses daily increments to
compensate the calibration standard count. The “corrected” counts may be
compared to the existing daily standard counts to determine if the gauge is
operating properly.
To execute the Source Decay function, press 〈SHIFT〉 and 〈SPECIAL〉
for:
Press 〈YES〉 four times for the display:
Press 〈1〉 〈3〉 for the display:
After a brief delay, the gauge will return to the Ready mode.
SPECIAL FUNCTION
YES- Next menu
1- STAT TEST
2- DRIFT TEST
YES- Next menu
12- BATTERY
13- SOURCE DECAY
14- SPECIAL RDWY
S td a fte r D ecay :
C ur ren t: xx
Predicted: xx
%D iff : xx