Welch Allyn Propaq Encore, Руководство по обслуживанию

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36 Calibration Welch Allyn Propaq Encore Vital Signs Monitor
7. Connect the adapter cable to the monitor’s dc input jack.
8. Verify that the input current from the variable dc power supply is less than 1.8A and
that the green LED on the Encore’s right side panel is on.
9. Connect the DMM positive lead to P12 pin 1 or 5.
10. Connect the DMM reference (negative) lead to non-isolated ground at TP2.
11. Adjust RP5 to 9.400V ± 0.010V dc.
12. Move the DMM positive lead to TP4.
13. Adjust RP3 to 2.393 V ± 0.015V dc.
14. Move the positive lead back to P12 pin 1 or 5.
15. Vary the input voltage from 12V to 28V and check that the output voltage remains
constant. The battery load voltage must not vary more than 0.100V dc.
16. Decrease the power supply voltage from 12V to 7V while checking the right side
panel green LED. The LED should turn off between 7 and 12V.
17. Disconnect the adapter cable from the Encore’s right side panel.
18. Remove the 4.9¾ test load and replace it with the 4.65¾ test load.
19. Reconnect the adapter cable.
20. Adjust RP1 to 9.350V ± 0.010V dc.
21. Remove the 4.65¾.
22. Reconnect the cable to P12.
Note Refer to the figure below for adjustment and test point locations.
0696-02
RIBBED (+) SMOOTH (-)