Enclosure (Touch) Leakage Current Test - GE CARESCAPE Monitor B850 Technical Manual

Enclosure (touch) leakage current test

5-8
Perform this test to measure current leakage through exposed conductive surfaces on
the device under test during normal operation. Refer to the instructions contained
with the safety analyzer to perform enclosure leakage current test.
NOTE
*The MD represents the network and voltage measuring instrument and its
frequency characteristics per IEC 60601-1.
1. Configure leakage tester as follows:
Polarity – NORMAL
Neutral – CLOSED
GND (Earth) – CLOSED
2. Power on device under test.
3. Read and record the current leakage indicated on tester.
NOTE
Center-tapped and non-center-tapped supply circuits produce different
leakage currents and the UL and IEC limits are different.
4. Change leakage tester switches to:
Polarity – NORMAL
Neutral – OPEN
GND (Earth) – CLOSED
5. Read and record the current leakage indicated on the tester.
6. Change leakage tester switches to:
Polarity – NORMAL
Neutral – CLOSED
GND (Earth) – OPEN
7. Read and record the current leakage indicated on the tester.
8. Change leakage tester switches to:
Polarity – REVERSED
Neutral – CLOSED
GND (Earth) – OPEN
CARESCAPE Monitor B850 2040384-004D