Functional And Operational Testing; Inspection; Electrical Safety Tests - GE Vital Signs enFlow Preventive Maintenance

Employ local regulations to determine the frequency of required testing (i.e. Earthing Impedance,
Leakage Current) for the enFlow Warmer (Model 100), Controller (Model 121), and AC Power Pack
(Model 120).

Functional and Operational Testing

Protocols
Inspections
Temperature Readout Display and Status Indicator
Lights
Electrical Safety
Simulated Use Performance Testing: enCheck Model
400 or alternate method
Alarm Test: enCheck Model 400 or alternate method
Functional and Electrical Procedure

Inspection

1. Ensure that all cords and connectors are in good condition and void of any cuts, cracks, or frays.
Discoloration from cleaning solutions and disinfectants is normal and to be expected.
2. Ensure that the unit is clean and void of any cracks or other signs of damage. If signs of damage are
visible, remove it from service; and contact the service center as soon as possible.
Temperature Readout Display and Status Indicator Lights
1. Plug the Controller/AC Power Pack into a functioning power supply. Set the MAINS power to ON.
Confirm the Controller/AC Power Pack power indicator is illuminated and displaying a "green" color.
Confirm the display panel (Controller only) shows in yellow the conditional message "not heating."
2. Connect the Warmer without a Disposable Cartridge inside to the Controller/AC Power Pack.
Confirm the "beep" signaling connection. Confirm the display (Controller only) continues to show the
conditional message "not heating." Confirm the Warmer power LED is flashing green.

Electrical Safety Tests

1. Ground wire resistance
Equipment
enFlow Controller/AC Power Pack
Safety analyzer with test lead –
Purpose
The purpose of this test is to check the resistance in ohms of the ground pin to the chassis. For
purposes of this check the pole screw will be considered to be the ground pin, and the chassis is the
Controller/AC Power Pack.
Procedure
A. USA (Tests the equipment inclusive of its power cord.)
1. Remove the Controller/AC Power Pack off the IV pole.
2. Reinsert the pole clamp screw; screw in finger tight snug against the case. (Do not over-
tighten.)
3. Attach the banana end of the ground lead on the safety analyzer to the pole clamp screw.
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 Procedure A
4400-0108 enFlow Preventive Maintenance Record Rev. C Apr-2011
Frequency
As required by
accrediting body or
once a year
x
x
x
As required by
accrediting body or
once every 5 years
x
x
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