Huntleigh Flowtron DVT, Service Manual

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5.15.2.4 Flow check
Attach the flowmeter tube to the port under test and check the flow
measurements.
The flow readings should be:
5 liter/min. free flow
Difference in flow between ports should not be greater than 1 liter/minute.
5.16 Functional Check
Run the pump for a minimum of 1 hour and check calibration again. Adjust if
required.
With the pump running carry out the following :
a) Turn the pressure to 30 mmHg and observe for 1 minute, the
alarm must not activate.
b) Turn pressure to minimum, alarm must activate within 45 seconds
and remain on continuously (continuous intermittent beeps).
c) Turn pressure back to 30 mmHg, alarm must cancel within 45
seconds.
F048 5-11 Issue 3
Mar 2003