Berthold Duo Xpert - GPC calibration: Reference count rate

7 Main Menu Device Setup LB 470 Level
120
56925BA2 Rev. 03, 11/2017
GPC calibration: Reference count rate
NOTICE
To determine the reference count rate of the GPC detector, there must be a
constant gas density (calibration conditions) in the container.
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Input field count rate [cps]
Input field measuring Duration [s]
Button < Start >
Button < Ok >
Button < Cancel >
Fig.
100 GPC calibration reference count rate
Determine reference count rate
1. Click on the text field "count rate" (Fig. 99, item 3).
 A new window "GPC reference rate" opens (Fig. 100).
2. Click on the ″Read-In-Time" field (Fig. 100, item 2) and specify the duration
of measurement in seconds. The higher you set the measurement time, the
more accurate the result.
3. Confirm with the Enter key and click on the button <Start> to start the meas-
urement.
 The measurement is performed.
4. Click on <OK> to accept the count rate.
IMPORTANT
The value of the count rate may be entered manually (Fig. 100, item 1), if a
determination of the unique reference count rate is not possible.