Patient (Source) Leakage Current - GE Transport Pro Service Manual

Patient (Source) Leakage Current

9-8
Checkout: Electrical Safety Tests
powered from 100-240 V/50-60 Hz
11. Set the power switch of the device under test to OFF.
This procedure only applies to Class I (grounded/earthed) equipment,
and measures the leakage current from the ECG/RESP connector of the
device to ground.
1. Configure the leakage tester like the circuit shown below with GND
switch OPEN and polarity switch NORM.
Leakage Tester
HIGH
LOW
GND
0.15µF
1K
DMM
10
DMM set to measure AC voltage
2. Connect an ECG test body to the ECG/RESP connector of the device
under test.
3. Set the power switch of the device to ON.
4. Read the leakage current indicated on the DMM.
5. Change the leakage tester polarity switch to the RVS position.
6. Read the leakage current indicated on the DMM.
NOTE
If either reading is greater than 50 µA (0.05 volts on the DMM), the
device fails this test. Contact GE Technical Support.
7. Change the GND switch to the Closed position.
8. Read the leakage current indicated on the DMM.
9. Change the leakage current switch to the RVS position.
10. Read the leakage current indicated on the DMM.
NOTE
If either reading is greater than 10 µA (0.01 volts on the DMM), the
device fails this test. Contact GE Technical Support.
11. Set the power switch of the device to OFF.
NOTE
The AAMI and EN single fault condition (ground open) is 50 µA,
Transport Pro
2012659-042
NORM
Power Cord
RVS
GND
Closed
ECG Test Body
Device
Under
Test
006A
Revision A