LUDLUM 133-2, Руководство пользователя

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Model 133 Series Gamma Detector
Ludlum Measurements, Inc. Page 5 February 2018
Operating Procedures
C
ONNECTING TO AN
I
NSTRUMENT
Connect one end of the cable provided to the
detector by firmly pushing the connector
together while twisting clockwise ¼ turn until
latched. Repeat the process in the same
manner with the other end of the cable and the
instrument.
T
ESTING THE
D
ETECTOR
1. Ensure that the instrument high voltage (HV) is at the
proper setting for the detector (550 volts).
2. Connect the detector to the instrument and check for a
proper background reading (see table on page 4).
3. Expose the detector to a check source and verify that the
instrument indicates within 20% of the check source
reading from the last calibration. Alternatively, expose the
detector to a source of known value and verify that the
detector detects greater than or equal to the efficiency
listed in the specification section of this manual.
4. Instruments and detectors, which meet these criteria, are
ready for use. Failure to meet these criteria may indicate a
malfunction in the detector.