CAPINTEC, INC.
CRC
®
-712MX
Note: The optional printer interface must be installed within the calibrator to obtain
the above output data.
Isotope Select Push-Buttons
Eight preset calibration settings are provided for commonly used isotopes. These
buttons are interlocked with the
BKG
,
OTHER
,
TEST
and
ZERO
push-buttons for
one-at-a-time operation.
F
Background Adjust
This multi-turn potentiometer electronically cancels the residual background activity
detected by the Ionization Chamber. It is always active and therefore is equipped with
a locking ring. Adjustments are made with the
BKG
push-button depressed and the
locking ring rotated counter-clockwise.
G
Calibration for Other Isotopes
To obtain a readout of any isotope, set this precision potentiometer to the calibration
number for that isotope (obtained from the Calibration Card or the table in Appendix
II) and press the
OTHER
push-button.
H
Calibration Card
A list of calibration numbers for commonly used isotopes. Reference Appendix II for a
more complete list of calibration numbers.
I
Curie or Becquerel Selector Switch
Selects the units in which the activity will be displayed.
J
Chamber Select Switch
A 5-position Chamber Selector Switch is provided on the front panel of the calibrator
to designate which remote Ionization Chamber is being used for the isotope
measurement.
K
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GENERAL OPERATING INSTRUCTIONS
January 08
