Replacing External Components
13-16 DSX™ System Service Manual
To Calibrate the Vacuum Switch:
1 Disconnect the small tube to the center barb of the “T” fitting in the DSX side
panel area. Connect this tube to the center barb of the “T” fitting in the
manometer tubing assembly.
2 Connect the large tube from the manometer “T” fitting to the center barb of the “T”
fitting in the DSX side panel area.
3 Turn ON the DSX and start the Revelation software.
4 Choose Manual Control from the Tools menu.
5 In the DSX Manual Control window, select Advanced in the first column, select
Send Command(s) in the second column, and click Do It.
6 In the input box, enter C0MAP, then click Send to map the DSX.
7 In the input box, enter W0STS, then click Send to self-test the Washer Module.
8 In the input box, enter W0APCY, then click Send to start the aspirate pump.
9 With the aspirate pump running and the waste bottle cap tight, the vacuum must
be greater than 0.60 psi.
10 Monitor the green (positive) and blue (negative) terminals of the vacuum switch
with a voltmeter.
11 Loosen the waste bottle cap slightly until the manometer reads a line vacuum of
0.43 - 0.47 psi.
12 Tweak the adjustment screw on the vacuum switch until the voltage just switches
from 5V to 0V at 0.43 - 0.47 psi.
13 Retighten the waste bottle cap.
14 Disconnect the large fitting between the waste bottle and the front extrusion to
release the pressure. Then, reconnect the large fitting.
15 Monitor the voltmeter and the manometer, and confirm that the voltage switches
from 5V to 0V when the manometer reads a line vacuum of 0.43 - 0.47 psi.
Note: If the voltage and pressure are not correct, readjust the vacuum
switch, and then recheck the values.
16 In the input box, enter W0SHT, then click Send to stop the aspirate pump.
17 Exit Revelation and turn OFF the DSX.
18 Reconnect the tubing and fittings to the original configuration.
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