Ludlum Measurements 3030P Manual page 40

Model 3030P
Ludlum Measurements, Inc.
Parameters/Print Parameters (Ctrl-P)
report of all parameters to a printer.
Parameters/Password Protect
require a password.
Parameters/Change Password
: These are six user-defined fields to place general
Headers 1 through 6
information. These are limited to 12 characters each.
: This date is checked when instrument is turned on. If
Calibration Due Date
current date is past this date, "OUTCAL" is displayed on the instrument.
Setting dipswitch 2 to the ON position will disable this feature.
: This is the current date and time from the last time data
3030P Date/Time
was read from the instrument.
: In addition to the seven preset count times, there
User Defined Time (min)
is a user-defined count time that can be set from the PC. This is the count
time that will be used when the instrument is switched to the PC position.
Alpha, Beta, Alpha+Beta Alarms
999999 will disable the alarm. If the unit is in CPM, the alarms are in CPM.
If the instrument is in DPM, the alarms are in DPM. It is up to the user to
make sure that the alarms are set accordingly to the count mode.
Loss of Count Timer : If the detector receives no counts on either the alpha
or beta channel after this time expires, the display will show "LOC FAIL"
and will not operate until reset. This timer is reset whenever a count is
received.
: The model 3030P can display the readings in raw scaler
Count Mode
counts, CPM, or DPM. If dipswitch 1 is OFF, the unit is always in scaler
mode.
The Ludlum Model 3030P can operate as a traditional radiation scaler,
displaying measurements in terms of CPM (counts per minute). It can also
be programmed to automatically adjust and display the measurements in
DPM (disintegrations per minute). By knowing what the efficiency is for
alpha and beta particles, the Model 3030P is able to divide measurements by
the known efficiency and display in DPM. The DPM mode may be easier
for users since many regulations and limits are expressed in terms of DPM.
In raw scaler mode, the count obtained is the actual counts received during
that count time. In CPM mode, the counts are adjusted for the count time.
Technical Manual
: This menu item will print out a
: When this is checked, certain functions
: Changes the current password.
: These are the alarm settings. A value of
Page 32
Section 7
February 2021