LUDLUM 3030E-2 Manual page 14

Model 3030 & 3030E Series
Ludlum Measurements, Inc.
measurements on known sources (and background) and receive acceptable
numbers in order for the instrument to be used that day. Twenty-four hours
later, the QC LED (light emitting diode) is turned on, indicating the need for
another QC check. This feature ensures that the instrument is tested daily
and that measurements are valid.
The Model 3030-2 is a variant of the Model 3030 that allows the count to be
displayed in units of Bq or CPS (counts per second). In order to do this, the
status light for overload (OL) is changed to a green indicator, and the
overload condition is instead displayed as "OL" on both LCD displays. The
final change is that, when placed into Bq or CPS units, the alpha and beta
LCD displays are changed to having a second decimal point, ie. in the
format xxxx.xx to allow for lower-level measurements. The Model 3030-2
does have a distinctly different front panel that has the model number
"3030-2" prominently displayed. A detailed summary of these changes are
found in Appendix A, starting with page A-1.
The Model 3030E-2 is like the Model 3030-2, but with an external detector
like the Model 3030E.
Technical Manual
Page 2
Section 1
November 2017