PM-7 Operating Manua.. - Voss Associates

General Description
Windows-Based Software
a. Calibrate
This function is used to calibrate the monitor. Invoke the calibration
routine by typing > C or > ENTER if “Calibrate” is highlighted.
The operator is prompted for the portal serial number and the
operator ID. The operator ID can be an alphanumeric string of up
to 16 characters. After the responses have been entered, the source
selection, monitor serial number, and operator ID are echoed to the
screen for verification. If incorrect, the operator can edit the
information at this time by first pressing > F1. Striking any other
key accepts the information and presents the operator with another
submenu as shown in Figure 5.2.
04:01:21
Establish PC/PM-7 Communications
PASSWORD OK
>Connect >Disk Edit >Reports >Password >Quit
PM-7 #1
Calibrate the Connected PM-7
>Calibrate >Utilities >Edit >Quit
Run High Voltage Plateaus
>Plateaus >Efficiencies >Shield Factors >Quit
Figure 5.2. Thermo Fisher Scientific PM-7 Calibration Program
i. If “Plateaus” is selected, the first prompt that appears allows the
operator to identify the calibration source that will be used. The
source can be selected from a list of up to four sources that can
be defined in the System Parameter file. A composite source
made up of two sources from that list can be identified or a
source not identified in the list can be entered. The PM-7
corrects the activity for decay each time calibration is performed.
The computer will first run a background plateau, then a source
plateau, and finally, will calculate figures of merit for each
detector at each highvoltage setting. The range of voltages and
the size of each increment in high voltage is set in the system
parameters. The area should be clear of all radioactive sources
Thermo Fisher Scientific
Personnel Monitor -7 Techical Guide_5-5_