Welch Allyn Propaq Encore, Руководство по обслуживанию

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32 Functional Verification Welch Allyn Propaq Encore Vital Signs Monitor
15. Use the pump bulb to manually inflate the pressure to 100mmHg.
16. Wait 15 seconds for the pressure to stabilize. Note the pressure reading, then wait an
additional 60 seconds and record the leak rate. This is the total leakage (including
water trap leakage from step 9).
17. Subtract the water trap leakage (determined in step 9) from the total leakage
(determined in step 16) to obtain the internal SCO
2
leak rate which should be less
than 10mmHg. The total leakage, including water trap leakage from step 9, cannot be
more than 10mmHg.
18. Disconnect the tubing setup from the water trap and exhaust port.
19. With water trap installed in the water trap receiver, turn on SCO
2
monitoring through
CO
2
/SPO
2
> CO
2
>MORE > SOURCE.
20. Through the CO
2
/SPO
2
> CO
2
> MORE > FLOW RATE menus, set the monitor flow
rate to
90mL/min.
21. Wait 5 minutes.
22. Connect the flow meter to the water trap.
23. Check that the measured flow rate is between 76 and 104 mL/min.
24. Disconnect the flow meter from the tubing connected to the water trap (leave the
open length of tubing connected.)
25. Connect the flow meter in line with the CO
2
gas delivery tubing.
26. Adjust the CO
2
flow for a rate of 110-200mL/min.
27. Insert the gas delivery tubing and the open sampling line from step 24 into a small
ziplock bag (sandwich sized) with the zip lock closed as far as possible without
pinching the tubing. This will slightly pressurize the bag with the test gas.
28. Wait two minutes for the bag to fully equalize with the test gas.
29. Calculate the partial pressure of the test gas used ( “CO2 Verification Preparation” on
page 26).
30. Multiply the calculated partial pressure (in mmHg) from step 29 by 0.95316. Record
this calculation for use in step 33.
31. Select the SIDE TST through the SERVICE > CO
2
TEST > SIDE TST menus.
32. Observe the instantaneous CO
2
value on the service screen for a constant value
indicating that the CO
2
concentration in the ziplock bag has stabilized.
33. Check that the observed instantaneous CO
2
value is within 3mmHg or 10%,
whichever is greater, of the calculated value from step 30 (round up all half values on
the service screen to the next higher mmHg).
34. Disconnect the test setup.
Caution Do not exceed 100mmHg during the following pressurization.
Excessive pressure can open internal tubing connections and cause leakage.