Operating Instructions
Issue: 1.0
5-12 SAM12 User Manual
Thermo Fisher Scientific
Select Set-Up|Params3 to
customise the third set of
Operational Parameters
Description of options:
Field Name
Description
NBR Settings
These are factors used to determine if Naturally
Occurring Radioactive Material is present.
Default Calibration
Accuracy (%)
This is the default Calibration Accuracy used in the
Calibration Check utility - see
19)
. It is used, along with the background
measurement, determines the count time required
with the SAM12 is being calibrated.
Values: 0.5 to 10% in 0.1% steps
Default: 1.00 %
Calibration
Confidence (
σ
)
This factor affects the monitoring time of
calibration.
Values: 0.1 to 4 sigma in 0.1 sigma steps
Default: 2
Note that this section is set by at production and should only be
changed in consultation with Thermo Fisher Scientific.
Select Set-Up|Alarms to select
the Active Calibration Stream
and set the alarms:
Description of options:
Field Name
Description
Calibration / Nuclide
Use the direction arrows to change the Calibration
type. When the type is correct, select the Make
Active button
Note that a description of the Calibration Type is
displayed in the field below.
Normal Alarm
(default unit)
This is the detected activity at which SAM12 will
indicate an Alarm.
Values: 0 to 10,000,000 (Any unit).
Alarms
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