Thermo Scientific TVA2020, Instruction Manual

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Optional Accessories
Enhanced Probe Option
8-8 TVA2020 Instruction Manual Thermo Fisher Scientific
Only the linear correction mode is used for the secondary route response
correction:
Linear: FinalConc = RouteRF x BackConc
The secondary RouteRF is downloaded to the instrument as part of each
route entry. This factor is applied to both detectors, as it is expected that
when operating in this mode, only one detector will be used. Entries
inserted by the instrument default to a RouteRF of 1.0.
Selecting “Nx” from the first logging mode screen will allow you to step to
the next record in the route. Selecting “Pr” will allow you to step to the
previous record in the route. Selecting “List” will show 10 records per page
for faster searching through the route. You can also enter a tag via the
keypad and the TVA2020 will automatically skip to that tag if it is
contained within the route. If the tag is not contained within the route, a
“TAG NOT FOUND” message will appear and you will be given the
option to “Insert” that tag into the route or “Exit.”
Once you have reached the correct tag for the component you wish to
monitor, you may select “Start log sampling” to begin recording data. The
TVA2020 will display the reading from the selected detector and begin
counting down for the time interval selected in the SETUP menu. The
countdown is shown on the last line of the display:
PID
0.66
ppm
Tag:0019
Eqp:PMP Size: 0.75
Leak: 50 RF:1.80
0.66ppm PID
Sampling: 24s [Exit]
Once the countdown is complete, the TVA2020 display will freeze on the
reading to be logged and indicate if it is a leak (i.e., if the reading of the
active detector exceeds the indicated leak rate). You will be given several
options:
Navigating the Route File
Logging Data