BNC SAM 935 Portable Gamma Spectroscopy System - Manual (Page 21)

SAM 935™ Instruction Manual 17
3.2.4 Calibration with Three Coefficients
To enter the energy calibration factors manually, the factors from a previous live energy calibration for this
unit and matching detector must be available. These numbers can be found on the printout normally done
at the end of a live energy calibration. Alternatively, the numbers can be those recorded earlier from a pre-
vious manual calibration with the three coefficients.
1. Press the U TIL key to bring up the Utilities menu. Use the arrow keys to select Analysis Tools
Setup. The first screen is the Energy Match Window:
2. Do NOT change anything in this screen. Press C ANCEL (F1) 10 times until you see the question
SET FINE ENGY COEFF?
3. Press Y ES (F2).
The next three screens are standard number entry screens. Change the factors as needed. On
each screen, when the correct value is shown, press E
NTER .
4. Return to the normal operating screen.
3.3 Configure Dose Rate Units and Trigger
Because the SAM 935 operates in Surveillance mode by default (also called dose rate monitoring), config-
ure the Dose Rate Units and Dose Rate Trigger options in the Monitor Setup menu:
1. Press the U TIL key to bring up the Utilities menu.