Model 43-68, 43-68/1, 43-68/2 Gas Proportional Detector
Ludlum Measurements, Inc.
Page 7
February 2011
Turn main supply to OFF.
Check source count before and after static operation. A
decrease in detector efficiency should be less than 10% in
15 hours from when the detector is disconnected from the
main gas supply for gross counting or 5 hours for alpha-
beta counting.
Recharge
Connect input and output quick connects.
Turn main supply to ON at 30-50 cc/min for routine
recharge, or refer to flush procedures for faster flush
time.
