38 Functional Verification Welch Allyn CP 100 and CP 200 Electrocardiograph
Dielectric Strength Test
It is important to complete the dielectric strength test after any procedure in which the
monitor is opened to verify proper patient isolation.
The patient isolation test requires an AC Withstand Voltage (hi-pot) Tester, such as the AR
3605 or equivalent. If this equipment is not available, Welch Allyn can perform the patient
isolation test for you quickly, for a nominal fee
.
To create test cables for the patient isolation test. See “Hi-Pot Test Connections” on
page 39.
Set up the test parameters on the AC Withstand Voltage Tester as follows:
To create test cables for this procedure. See “Hi-Pot Test Connections” on page 39.
1. Connect the modified power cord between the return jack on the tester and the AC
input of the unit.
2. Connect the high voltage cable between the equipotential stud and the high voltage
on the tester.
3. Press the test button to run the AC withstand voltage test.
WARNING Failure to run the dielectric test when indicated could cause serious
injury to patients, and could lead to damage to the monitor.
WARNING Always follow the tester manufacturer’s operation instructions
exactly. Failure to perform this test properly can result in serious injury or death.
WARNING This test must be performed by qualified service personnel only.
WARNING Run this test, only, on an insulated table top, and away from other
people and equipment.
WARNING Must avoid connector shell and pe ground because pe is only
resistant to 500 Vac.
WARNING The patient isolation test involves exposure to extremely high
voltages and is extremely hazardous.
Note
Refer to the tester manufacturer’s operation manual for complete details on set
up and use.
Parameter Specification
Voltage 1500Vac
Maximum Limit 5.00mA
Minimum Limit 0.15 mA
Ramp Up 10 s
Dwell 1 min.
Delay 0.5 s
Ramp Down 0.0 s
Arc Sense 0
Frequency Local line (50 Hz or 60 Hz)
Continuity Off
Connect Off
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