Leak Check - Thermo Scientific TVA2020 Instruction Manual

Servicing

Leak Check

Leak Check
7-16 TVA2020 Instruction Manual
Use the following procedure to verify no leaks.
1. Attach a flow meter capable of reading a least 2 LPM to the probe inlet.
2. From the SETUP MENU, choose 1=Calib > 5=Flow.
3. Press "1" for the first flow calibration point.
4. Adjust the pump power with the up and down arrows for a reading of 1
LPM at the probe inlet.
5. From the CONTROL MENU, press 1=Pump Off'.
6. Record the counts associated with the pump off.
7. From the CONTROL MENU, press 1=Pump On.
8. Plug the inlet of the probe. The counts should drop to within ±200 of
the "Pump Off" recorded value.
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