GE Vital Signs enFlow Service Manual page 29

4. Plug the power cord of the Controller/AC Power Pack into the safety analyzer.
5. Set the function knob on the safety analyzer to Ground wire resistance.
6. Set the ground switch to normal.
7. Set the polarity switch to the off position.
8. Power the safety analyzer by plugging in and setting the MAINS power to ON.
9. Record the resistance reading. An acceptable reading is a maximum of 500.0 mΩ.
B. TUV (Tests the equipment exclusive of its power cord.)
1. Follow steps 1-3 in 1.3.2
2. Plug the cord of the safety analyzer into the Controller/AC Power Pack.
3. Follow steps 5-8 in Procedure A
4. Record the resistance reading. An acceptable reading is a maximum of 100.0 mΩ
at a current of 25 A.
2. Leakage current at the AC power cord
Equipment
Safety analyzer with test lead
enFlow Controller/AC Power Pack
Purpose
This test is run to check the chassis leakage in microamps. For the purpose of this test the
Controller/AC Power Pack is the chassis.
Procedure
1. Plug the power cord of the Controller/AC Power Pack into the safety analyzer.
2. Turn the knob on the safety analyzer to the chassis leakage function.
3. Power the safety analyzer by plugging in and setting the MAINS power to ON.
4. Record the polarity and ground readings for the Controller/AC Power Pack for both power on
and off scenarios for the following configurations:
ENCLOSURE LEAKAGE CURRENT
Normal polarity — normal ground
Reverse polarity — normal
ground
Reverse polarity — open ground
Normal polarity — open ground
3. Leakage current of the Warmer to the saline in the IV line
Equipment
enFlow Warmer and Disposable Cartridge
Safety analyzer with ECG leads
Saline
Wire
Extension set with a non-venting cap
Purpose
The purpose of this test is to check the leakage of current
from the Warmer into saline. As IV fluids are generally
conductive, a fluid warmer is considered to be electrically
connected to the patient similar to an ECG lead; therefore, the
leakage needs to be tested. The setup for this procedure is
described below.
enFlow Service Manual Rev. F 04/12
4400_0060
Allowable values of continuous LEAKAGE CURRENTS, in µA.
TYPE BF
Normal
Condition
Single Fault
Condition
Double Fault
Condition
Single Fault
Condition
100
500
500
500
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