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30 Functional verification Welch Allyn VSM 300 Series
2. Connect the hi-pot DC input test cable between the return jack on the tester and the
DC input connector of the monitor.
3. Test isolation between the Nurse Call and DC input:
a. Connect the hi-pot Nurse Call test cable between the nurse call connector and
the high-voltage jack on the hi-pot tester.
b. Press the test button to run the AC withstand voltage test.
c. Verify that the monitor passed the test. (If the input current never exceeds 2.50
mA, the shielding is sufficient.)
d. Remove the Nurse Call test cable.
4. Test isolation between RS232 and DC input:
a. Connect the hi-pot RS232 test cable between the RS232 connector and the
high-voltage jack on the hi-pot tester.
b. Press the test button to run the AC Withstand Voltage test.
c. Verify that the monitor passed the test. (If the input current never exceeds 2.50
mA, the shielding is sufficient.)
d. Remove the hi-pot RS232 test cable from the RS232 connector and the hi-pot
tester.
5. Test the isolation between SpO2 and DC input:
a. Connect the SpO
2
test cable between the SpO
2
connector and the high-voltage
jack on the hi-pot tester.
b. Push the test button to run the AC Withstand Voltage test.
c. Verify that the monitor passed the test. (If the input current never exceeds 2.50
mA, the isolation is sufficient.)
d. Remove the SpO
2
test cable.
6. Remove the DC input test cable.