Thermo Scientific SAM12, Manual

Page: 85 / 176

Issue: 1.0 Operating Instructions
Thermo Fisher Scientific SAM12 User Manual 5-45
User Mode
The basic operation of the SAM12 is as follows:
•
Upon power up, system diagnostics are run – see Start
Up Checks (page 5-46) .
•
Upon successful system diagnostics, the SAM12
establishes a new Background – see
Establishing a new
Background (page 5-48) .
•
The system enters the Background Monitoring Mode –
see
Normal Background Monitoring(page 5-49) .
•
A user places articles to be monitored inside the vault
and closes the door – see
Door Operations (page 5-51) .
•
Monitoring starts as a result of the Start button being
pressed – see
Commence Monitoring (page 5-53) .
•
Monitoring continues for a period determined by the
required confidence levels and the current background.
•
Monitoring may be interrupted due to the result of a
QuickScan assessment (see
Options (page 5-6) ), or if a
significant change in background conditions is detected
during the measurement – see
Background Change
during Measurement (page 5-54) .
•
At the end of the Monitoring period, activity is
calculated and compared against a set of alarm
thresholds. A simple Go/No Go indication is given
along with details of the measured activity. If the
activity is above the alarm threshold, NBR algorithms
are used to attempt to determine the proportion of
activity that is due to NORM – see
Monitoring Result
(page 5-55) .
•
The user removes the article from the SAM12 - see
Remove Articles (page 5-61) .