GE Transport Pro - Patient (Sink) Leakage Current

Revision A Transport Pro 9-9
2012659-042
Checkout: Electrical Safety Tests
whereas the normal condition (ground closed) is less.
Patient (Sink) Leakage Current
This procedure only applies to Class I (grounded/earthed) equipment,
and measures the leakage current from a mains voltage source into the
ECG/RESP connector.
1. Configure the leakage tester like the circuit shown below with GND
switch CLOSED and polarity switch NORM.
WARNING
Shock hazard. The following step causes high voltage at
the test body. Do not touch the test body.
2. Set power switch on the device to ON.
3. Read leakage current indicated on DMM.
4. Change the leakage tester polarity switch to the RVS position.
5. Read the leakage current indicated on the DMM.
NOTE
If either reading is greater than the appropriate specification below,
the device under test fails. Contact GE Technical Support.
 10 µA (0.01 volts on the DMM) at 120 V AC using the test body.
 20 µA (0.02 volts on the DMM) at 240 V AC using the test body.
 50 µA (0.05 volts on the DMM) at 120-240 V AC using the ECG
cable.
NOTE
The 10 and 20 µA limits are based on internal design standards. The
50 µA limit is common to all standards. AAMI ES-1 standard
requires using the patient cable.
6. Set the power switch on the device to OFF.
Power Cord
Leakage Tester
NORM
RVS
ECG Test Body
or ECG Cable
HIGH
LOW
GND
1K
0.15µF
10
Power Cord
Device
Under
Test
DMM set to measure AC voltage
GND
DMM
Closed
(Keep cable length as
short as possible.)
120K
005A