Servicing
Flow Calibration
7-18
TVA2020 Instruction Manual
Thermo Fisher Scientific
5.
Attach one of the red flow restrictors between the probe inlet and the
flow meter.
6.
Press “
2
” for the second flow calibration point.
7.
Adjust the pump power with the up and down arrows for a reading of 1
±.01 LPM at the probe inlet.
a.
Typical values are 65-75% power with 1K-3K higher counts
8.
Press
Enter=Accept
to save the Flow 2 values
9.
Attach a second red flow restrictor, in line with the first, between the
probe inlet and flow meter.
10.
Press “
3
” for the third flow calibration point.
11.
Adjust the pump power with the up and down arrows for a reading of 1
±.01 LPM at the probe inlet.
a.
Typical values are 85-95% power with 1K-3K higher counts.
12.
Press
Enter=Accept
to save the Flow 3 values.
13.
Press
4= calc coef
to calculate the flow calibration values.
Note
The flow calibration values are stored in a file called
FACTORY.TXT. This file can be saved to a computer and reloaded to the
instrument if the flow calibration were to become corrupted. See the
section on flash file transfers.
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Содержание TVA2020
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