Model 3000 Survey meter User’s Manual Section 2
Ludlum Measurements, Inc. Page 2-12 April 2021
Other choices are to have count mode units of R/h or Sv/h, in which case
the COUNT mode result is an averaged exposure or dose rate. But if count
mode units of R or Sv are chosen, the result is shown in accumulated
exposure or accumulated dose over the chosen count time. The following
table lists the possibilities:
UNITS RESULT
c counts per count time
d disintegrations per count time
cpm, cps count rate averaged over the count time
dpm, Bq disintegration rate, averaged over the count time
R/h, Sv/h exposure or dose rate, averaged over the count time
R, Sv integrated exposure or dose over the count time
In COUNT mode, operation depends on the current state of the Count
Timer.
When the Count Timer is Ready:
The display will show the Count Time.
Tapping the UNITS button will switch between the Primary and
Secondary Count Units. The newly selected Count Units will be
displayed for approximately one second, and the display will then
return to the Count Timer.
Long-pressing the ON/OFF button starts the Count Timer.
If other operational modes are available, tapping the MODE button
will move to the next available operational mode.
When the Count Timer is active:
The display will show either Count Time (default), both Count Time
and Counts, or just counts, depending on Count Display Mode.
Long-pressing the UNITS button will switch what is being displayed
for the active count only.
Doing a long press (pressing the button and releasing for at least a
half second) to the ON/OFF button will reset the Count Timer.
Tapping UNITS button will display the other unit if enabled.
Click audio, if enabled, can be turned on and off by tapping the
Audio button.
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