If there should be a prob lem detected, the LED on the TEST
key will flash and the Electronic Thumbwheel Display will
show a number corresponding to the fault. See Appendix A or
the Atomlab Dose Cal ibrator Trouble-shooting Guide for Error
Messages and correction procedures. If you should decide to
continue in spite of the fault, press the TEST key to return to
normal operating mode. The LED on the TEST key will contin-
ue to flash. In the event of an error message, we recommend
you perform a Constancy and Linearity Test before continuing.
When you press the BKGND key to store the background
activity, this value remains in memory until you press the
key again. Pressing the BKGND key a second time will abort
the process.
Even though both Atomlab Dose Calibrators com-
pensate for background interference, the accuracy of
Activity Measurements depends on the intensity of the back-
ground radiation. For this reason, store the new generator,
storage generator and check sources away from the dose
calibrator.
SETUP MODE
Pressing the SETUP key accesses the Setup mode. At this
point you may change the dial value settings. To change
other setup parameters once in Setup mode:
1) Press TEST one time to display the current firmware version.
2) Press TEST two times to display the current chamber version.
3) Press TEST three times to display the current chamber
number.
4) Press TEST four times to display high voltage.
5) Press TEST five times to return to Setup mode.
ATOMLAB Dose Calibrator Operation Manual Chapter 4
Biodex Medical Systems 4-7 Release 2.0
Background
Correction
(BKGND Key)
Setup Key
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