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4-28
Maintenance: Check out Procedure
In all cases, the leakage current is measured from the floating (patient)
inputs jack of the device to ground. To setup the leakage current test:
1. Disconnect the safety tester from the line voltage.
2. Ground all signal input/output connections (all SIPs/SOPs connected
to ground).
3. Connect the patient cable/test plug to device.
4. Connect the patient cable/test plug to the safety tester.
5. Ensure that the person/tester in not touching the patient cable/test
plug or floating (patient) input or device conductive surfaces.
6. Connect the safety tester to the line voltage.
WARNING
PERSONAL SAFETY — MAINS VOLTAGE is applied to
floating input (patient connection) and patient cables/test
plug conductors and safety tester PATIN JACK. For the
protection of the person performing these tests, the
following values of resistor R may be used:
Type CF — 100 kOhm (220 to 240 V)
Disconnect safety tester from line voltage before connecting
patient cable/test plug to device.
After line voltage has been disconnected, connect the
patient cable/test plug to device.
During S.F.C., measurements should be taken under the following
conditions (refer to
"Electrical Safety Tests"
Device in ON state
Polarity switch NORM and RVS
S1 (neutral) open
GND switch closed
The test has failed if the measured values are greater than:
N.C.
N/A
Total tests/combinations: 0
N/A
After completing this test, disconnect the safety tester from line voltage
before disconnecting the patient cable/test plug and/or the device.
TM
MAC
600
2047426-002
on page 4-24):
S.F.C
Polarity: NORM &
RVS S1 (neutral): open
open GND: closed
Total tests/combinations: 2
50 uA (EC & UL)
Revision G
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