Ludlum Measurements 16, Техническое руководство

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Model 16 Analyzer Technical Manual
Section 6
Ludlum Measurements, Inc. Page 6-6 July 2011
2. With the detector positioned at the overload point, adjust the
OL
control until the overload LED just starts to flicker on the meter
dial. The meter should be deflecting above full scale at this point.
3. Position the detector in a radiation field between the equivalent
near full-scale meter field and the overload field. Ensure that the
overload LED is off. Adjust the
OL
control as required to fine
adjust between the two fields
Example:
Overload point = 1000 mR/hr;
Full-scale meter reading = 200 mR/hr
Adjust the
OL
control until the LED flickers at 1000 mR/hr, and
then place the detector at 500 mR/hr to ensure the LED is
disabled.
Note:
When a GM and Scintillation detector is used, the overload set
point must be adjusted for the GM detector due to the greater
current drain from the GM detector.
Maintenance
Instrument maintenance consists of keeping the instrument clean and
periodically checking the batteries and the calibration. The Model 16
instrument may be cleaned with a damp cloth (using only water as the wetting
agent). Do not immerse instrument in any liquid. Observe the following
precautions when cleaning:
1. Turn the instrument
OFF
and remove the batteries.
2. Allow the instrument to sit for one minute before accessing
internal components.