GE Healthcare Giraffe Warmer

Asset Type

Infant Warmer

Manufacturer

GE Healthcare

Model

Giraffe Warmer

Manual Reference

Panda and Giraffe Warmers Service Manual, M1128921 Revision J, May 2017

Manufacturer Recommendation / AEM Status

Manufacturer-Listed Frequency: Annually

The Giraffe Warmer is identified in the service manual as a bedded model. Manufacturer-listed annual service maintenance includes:

• Perform electrical safety checks as described in service manual section 2.2.3.
• If the optional scale is present, calibrate the scale as described in section 3.1.
• If the resuscitation system is present, perform the resuscitation system service checkout as described in the separate Resuscitation Systems Service Manual.

Manufacturer-Listed Frequency: Every Two Years

• Replace the lithium-ion battery as described in service manual section 5.4.3.
• If the applicable resuscitation/blender system is present, perform complete blender maintenance as described in the separate Resuscitation Systems Service Manual.

Manufacturer-Listed Parts / Accessories

• Scale calibration test weight: 5 kg Certified Test Weight, GE part number 6600-0209-800.
• Masimo SET 1 SpO2 electrical leakage test cable: 2006036-001.
• Masimo SET 2 SpO2 electrical leakage test cable: M1230051.
• Nellcor SpO2 electrical leakage test cable: M1237129.

Post-Repair Safety Inspection Requirement

After completing a repair, perform the Checkout Procedure, a final electrical safety check, and a leakage current test. If the unit fails any checkout step, remove it from service and repair it before return to clinical use.

AEM Note

If a facility performs this PM at a different interval or changes the listed activities, that should be handled under the facility's approved AEM program, risk assessment, maintenance history, and applicable regulatory requirements.

What This PM Procedure Covers

• Annual electrical safety testing.
• Annual scale calibration and verification, if installed.
• Annual resuscitation system service checkout reference, if installed.
• Two-year lithium-ion battery replacement.
• Two-year blender maintenance reference, if applicable.
• SpO2 patient lead leakage testing, if installed.
• Post-repair safety inspection documentation when applicable.

Required Tools and Equipment

• Approved electrical safety analyzer.
• 5 kg Certified Test Weight, GE part number 6600-0209-800, if the scale is installed.
• Applicable SpO2 electrical leakage test cable, if SpO2 is installed:
  • Masimo SET 1: 2006036-001.
  • Masimo SET 2: M1230051.
  • Nellcor: M1237129.
• Small screwdriver for lithium-ion battery removal when performing the two-year battery replacement.
• Tools and test equipment required by the separate Resuscitation Systems Service Manual when performing resuscitation system or blender maintenance.

Step-by-Step PM Procedure

1. Confirm Device Configuration and PM Scope

Action: Identify the warmer as a GE Healthcare Giraffe Warmer. Determine whether the unit is equipped with an in-bed scale, SpO2 module, resuscitation system, blender requiring separate maintenance, or a lithium-ion battery replacement due at this service interval.

Inspect the unit for obvious damage, missing parts, damaged power cord, contamination, or conditions that would make continued testing or clinical use inappropriate.

Expected outcome: Applicable PM tasks are identified and the unit has no obvious condition requiring immediate removal from service before testing.

Why it matters: Optional equipment changes the manufacturer-listed PM scope.

2. Perform Annual Electrical Safety Testing

Action: Using an approved electrical safety analyzer, perform ground continuity testing first, followed by leakage testing. For leakage measurements, power the warmer on and wait at least 30 seconds before taking readings.

Ground Resistance Check

Ground resistance measured in ohms, expected ≤ 0.5 Ω or facility/NFPA 99 criteria if different. The manufacturer-listed limits below are more specific for this device and must be met when performing this manufacturer-based PM procedure.

Measurement 1: Measure between the ground pin of the line cord plug and exposed metal of the electronic enclosure.

Manufacturer limit: Less than 0.2 Ω

Result = ______ Ω
Pass / Fail = ______

Measurement 2: Measure between the ground pin of the line cord plug and the ground pin of the appliance outlet connectors.

Manufacturer limit: Less than 0.1 Ω

Result = ______ Ω
Pass / Fail = ______

Important: The manual does not require all exposed metal components to be safety-ground bonded. Required safety-ground-bonded components include the heater reflector, heater duct, power supply mounting bracket(s), electrical enclosure, and elevating base.

Earth / Chassis Leakage Current — 115 VAC Rated Device

Touch/chassis leakage measured in microamps:

Normal condition, all possible operating modes:

Facility limit used = ______ µA
Manufacturer limit used = Less than 180 µA
Result = ______ µA
Pass / Fail = ______

Single-fault condition, if required by local ordinance or facility policy:

Facility limit used = ______ µA
Manufacturer limit used = Less than 200 µA
Result = ______ µA
Pass / Fail = ______

Earth / Chassis Leakage Current — 220/230/240 VAC Rated Device

Use these limits only when applicable to the rated device.

Normal condition, all possible operating modes:

Facility limit used = ______ µA
Manufacturer limit used = Less than 360 µA
Result = ______ µA
Pass / Fail = ______

Single-fault condition, if required by local ordinance or facility policy:

Facility limit used = ______ µA
Manufacturer limit used = Less than 500 µA
Result = ______ µA
Pass / Fail = ______

Expected outcome: All applicable ground resistance and leakage current measurements meet manufacturer-listed limits.

3. Perform SpO2 Patient Lead Leakage Testing, If Installed

Action: If the warmer is equipped with an SpO2 module, connect the applicable manufacturer-listed SpO2 leakage test cable. Measure leakage between all leads of the SpO2 connector shorted together and ground. Wait at least 30 seconds after power-on before taking readings.

AC Patient Lead Leakage

Normal condition, all possible operating modes:

Manufacturer limit: Less than 100 µA

Result = ______ µA
Pass / Fail = ______

Single-fault condition, if required by local ordinance or facility policy:

Manufacturer limit: Less than 500 µA

Result = ______ µA
Pass / Fail = ______

DC Patient Lead Leakage

Normal condition, all possible operating modes:

Manufacturer limit: Less than 10 µA

Result = ______ µA
Pass / Fail = ______

Single-fault condition, if required by local ordinance or facility policy:

Manufacturer limit: Less than 50 µA

Result = ______ µA
Pass / Fail = ______

Expected outcome: All applicable SpO2 patient lead leakage results meet manufacturer-listed limits.

4. Calibrate and Verify the Scale, If Installed

Action: For a Giraffe Warmer equipped with the optional in-bed scale, perform annual scale calibration using a 5 kg Certified Test Weight, GE part number 6600-0209-800.

1. Clear objects from the bed so only the mattress and clear plate remain on the scale.
2. Turn the warmer off and ensure the bed is level.
3. Enter Service Mode by powering on while holding the Help and Alarm Silence keys until two tones are heard.
4. Select Scale Calibration, then Manual Calibration.
5. Set the gram value of the known certified test weight and start calibration.
6. When prompted, place the test weight in the center of the bed.
7. Save the calibration if successful.
8. Power cycle the unit to exit Service Mode.
9. Perform a weighing cycle with the test weight.

Manufacturer acceptance criterion: Displayed weight must equal the certified test weight within ±10 g.

Result = ______ g
Pass / Fail = ______

Required Scale Checkout After Calibration

• Center weight check using 5 kg test weight: calculated value must be 5000 ±10.
• Off-center weight check at each corner using 5 kg test weight: calculated value at each location must be 5000 ±10.
• Load cell stability check: displayed SC values must not change by more than 5 counts total.

Center weight result = ______
Pass / Fail = ______

Corner B1 result = ______
Corner B2 result = ______
Corner B3 result = ______
Corner B4 result = ______
Pass / Fail = ______

Load cell stability result = ______ counts
Pass / Fail = ______

Expected outcome: Scale calibration completes successfully and all manufacturer-listed verification checks pass.

5. Perform Resuscitation System Service Checkout, If Installed

Action: If the Giraffe Warmer is equipped with a resuscitation system, perform the annual resuscitation system service checkout according to the applicable Resuscitation Systems Service Manual.

Expected outcome: Resuscitation system checkout is completed and documented according to its applicable service manual.

Important: The provided warmer manual identifies this annual task but does not provide the resuscitation system checkout steps or acceptance criteria. Those details should not be added until the applicable resuscitation service manual is reviewed.

6. Replace the Lithium-Ion Battery Every Two Years

Action: When the two-year interval is due, replace the lithium-ion battery as described in section 5.4.3 of the service manual.

1. Disconnect power before accessing internal assemblies.
2. Open the electronic enclosure rear panel as described in the manual.
3. Tilt the power board panel down to access the battery.
4. Note existing battery polarity before removal.
5. Use a small screwdriver to slide the old lithium-ion battery out of its holder.
6. Install the new lithium-ion battery with the same polarity.
7. Reassemble the enclosure.

Expected outcome: Battery is installed with correct polarity and the unit is reassembled without damage.

Why it matters: The manual states that the lithium-ion battery supports the power failure alarm and memory circuits during a power failure.

7. Perform Two-Year Blender Maintenance, If Applicable

Action: If the unit includes the applicable blender-equipped resuscitation system, perform complete blender maintenance according to the separate Resuscitation Systems Service Manual.

Expected outcome: Blender maintenance is completed and documented according to the applicable service manual.

Important: No blender procedure or pass/fail criteria should be added from this warmer manual alone.

8. Complete Post-Repair Safety Inspection When Applicable

Action: After repairs, including lithium-ion battery replacement performed under the repair procedure chapter, complete the applicable Checkout Procedure, final electrical safety test, and leakage current testing.

For battery replacement verification, check the power failure alarm and battery-backed memory function:

1. Note current control mode and temperature settings.
2. Wait one minute.
3. Disconnect the warmer from the wall outlet.
4. Verify that the power failure alarm sounds and the power failure indicator illuminates.
5. Wait one to two minutes and reconnect AC power.
6. Verify that the alarm cancels and the warmer returns to the same control mode and temperature settings.

Expected outcome: Post-repair checks pass, safety measurements meet manufacturer limits, and the warmer returns to normal operation.

Note: A fully charged battery should provide at least 10 minutes of power failure alarm operation. If tested for the full 10 minutes, the warmer must be operated for at least 2 hours to recharge the battery before patient use. The manual lists total recharge time as 10 hours.

Electrical Safety Testing

Ground Resistance

Ground resistance measured in ohms, expected ≤ 0.5 Ω or facility/NFPA 99 criteria if different. For this device, document compliance with the manufacturer-listed limits below.

Ground resistance from line cord ground pin to exposed metal of electronic enclosure, manufacturer limit < 0.2 Ω:
Result = ______ Ω
Pass / Fail = ______

Ground resistance from line cord ground pin to appliance outlet ground pin, manufacturer limit < 0.1 Ω:
Result = ______ Ω
Pass / Fail = ______

Touch / Chassis Leakage — 115 VAC Unit

Touch/chassis leakage measured in microamps:

Facility limit used = ______ µA
Manufacturer normal-condition limit used = < 180 µA
Result = ______ µA
Pass / Fail = ______

Single-fault testing, if required by facility policy or local ordinance:
Facility limit used = ______ µA
Manufacturer single-fault limit used = < 200 µA
Result = ______ µA
Pass / Fail = ______

Touch / Chassis Leakage — 220/230/240 VAC Unit, If Applicable

Touch/chassis leakage measured in microamps:

Facility limit used = ______ µA
Manufacturer normal-condition limit used = < 360 µA
Result = ______ µA
Pass / Fail = ______

Single-fault testing, if required by facility policy or local ordinance:
Facility limit used = ______ µA
Manufacturer single-fault limit used = < 500 µA
Result = ______ µA
Pass / Fail = ______

SpO2 Patient Lead Leakage, If Installed

AC patient lead leakage, normal condition, manufacturer limit < 100 µA:
Result = ______ µA
Pass / Fail = ______

DC patient lead leakage, normal condition, manufacturer limit < 10 µA:
Result = ______ µA
Pass / Fail = ______

Single-fault testing completed if required by facility policy or local ordinance:
Yes / No / Not Applicable = ______

Pass / Fail Criteria

Pass

• Annual electrical safety testing is completed and all applicable values meet manufacturer-listed limits.
• Scale calibration and required checkout pass, if the scale is installed.
• SpO2 patient lead leakage testing passes, if SpO2 is installed.
• Resuscitation system checkout is documented as completed according to its applicable service manual, if installed.
• Two-year battery and blender maintenance are completed when due.
• No unresolved damage, failure, or unsafe condition is present.

Remove From Service

• Ground resistance or leakage current exceeds manufacturer-listed limits.
• Scale calibration or required scale checkout fails.
• SpO2 patient lead leakage exceeds manufacturer-listed limits.
• Resuscitation system or blender maintenance cannot be completed or fails applicable service requirements.
• Power failure alarm or memory restoration check fails after battery replacement or repair.
• The unit fails any required post-repair checkout step.
• The device has damaged, missing, plainly worn, distorted, or contaminated components that affect safe operation.

Use the manufacturer service manual, facility policy, and approved AEM program to determine the final PM interval and return-to-service requirements.