Gammapilot M FMG60 FOUNDATION Fieldbus
Commissioning
Hauser
75
"Background calibration" (*10)
Local display
Backgr. cal. *10
Stop/edit
Start
This function is used to start the background calibration
Options:
•
Stop/edit
This option must be selected if:
– No background calibration is to be performed but the pulse rate of an existing
background calibration is to be displayed instead.
– The background calibration is to be performed manually.
Once this option has been selected, the Gammapilot M goes to the
"Bgr. pulse rate"
(*12)
function where the existing pulse rate is displayed and can be changed if
required.
•
Start
This option is used to start automatic background calibration. The Gammapilot M
changes to the
"Avg. pulse rate" (*11)
function
"Avg. pulse rate" (*11)
Local display
Avg. pulse rate *11
186 cps
The average pulse rate is displayed in this function. Initially, this value fluctuates (because
of the decay statistics), but reaches an average value over time due to integration. The
longer the averaging is performed, the lower the fluctuations.
c/s
t
"E"
A0018118
When the value is sufficiently stable users can quit the function by pressing . After this,
the Gammapilot M changes to the
"Background calibration" (*10)
function. Here the
"Stop/edit"
option must be selected to stop the integration. The value is then
automatically transmitted to the
"Background pulse rate" (*12)
function.
Background pulse rate
• The maximum integration time (= averaging time) is 1000 s. After this time, the
value is automatically transmitted to the
"Background pulse rate" (*1B)
function.
• Integration is
not
terminated by pressing in the
"Avg. pulse rate" (*11)
function. Integration continues until
"Stop/edit"
is selected in the
"Background
calibration" (*10)
function. For this reason, there may be a slight deviation
between the last average (integrated) pulse rate displayed and the final
"Background pulse rate" (*12)
.
