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Manual Reference
Exergen TAT-5000S TemporalScanner Operation Manual, document 818673r5; Exergen Calibration Verification Kit CVK-5000S Manual, document 818789r2; applicable connected-model supplement when integrated with another monitor.
Manufacturer Recommendation / AEM Status
The reviewed operation manual does not specify a calendar-based preventive maintenance interval. The thermometer self-calibrates at each power-on, and normal recalibration is not required unless physical damage or component failure occurs. Recalibration is performed only by Exergen.
- Inspect the sensor lens regularly and clean it when necessary; contamination can cause low readings.
- Replace the alkaline 9 V battery as needed. The manual states approximately 15,000 readings under its specified conditions.
- Use an Exergen Calibration Verification Kit when required by facility quality assurance or when accuracy is questioned.
- Factory-recertify the Certified Master reference thermometer yearly according to its calibration sticker. Master recertification part number: 139000.
Calibration Kit Part-Number Note
Exergen's TAT-5000S calibration-kit page lists part number 129062, while the reviewed CVK-5000S manual lists 129060 Arterial and 129061 Oral. Verify the current kit number and calibration type with Exergen before ordering. The Certified Master and test thermometer must have matching Arterial or Oral prefixes.
If the facility establishes or changes an interval, manage it under the approved AEM program, risk assessment, maintenance history, quality-assurance requirements, and applicable regulations.
What This PM Procedure Covers
- Physical and sensor-lens inspection and cleaning.
- Battery, display, and scan-function checks.
- Connected-model cable and data checks when applicable.
- Optional Exergen CVK calibration verification.
- Return-to-service determination.
Required Tools and Equipment
- 70% isopropyl alcohol prep pads.
- Cotton-tipped applicators for sensor-lens cleaning.
- Flashlight or Exergen penlight, if needed.
- High-quality alkaline 9 V battery, if replacement is needed.
- Exergen CVK and matching, currently certified Exergen Certified Master when verification is required.
- Applicable receiving monitor/interface for connected models.
- Facility-required personal protective equipment.
Step-by-Step PM Procedure
1. Confirm Device Identification and Configuration
Action: Verify the asset tag, serial number, model, standalone or connected configuration, Arterial or Oral calibration type, security accessories, and receiving interface when applicable.
Expected outcome: The device matches its CMMS record and this procedure matches its configuration.
2. Remove the Thermometer From Clinical Use
Action: Confirm the thermometer is not in patient use. Remove and discard any single-use cap or sheath according to facility policy.
Expected outcome: The thermometer is ready for safe inspection, cleaning, and verification.
3. Perform a Physical Inspection
Action: Inspect the housing, display, scan button, probe head, sensor cone and lens, battery cover, security or interface cable, connector, strain relief, and accessories for cracks, contamination, loose parts, liquid intrusion, damaged insulation, or impact.
Expected outcome: No physical damage or unsafe condition is present.
Remove from service if: A safety- or accuracy-related component is damaged.
4. Inspect the Sensor Lens
Action: Inspect for dust, fingerprints, smudges, moisture, film, or debris. Use a flashlight if necessary.
Expected outcome: The lens is clean, unobstructed, and mirror-like. A dirty lens can cause low readings.
5. Clean the Sensor Lens When Necessary
Action: Using a 70% isopropyl alcohol prep pad and cotton-tipped applicator, clean the sensor window and cone according to Exergen's procedure. Use the dry end to absorb alcohol and repeat with new supplies until mirror-like. Allow approximately 30 minutes after cleaning for all alcohol to evaporate before verification or clinical use.
Expected outcome: The lens is visibly clean, dry, and unobstructed.
6. Clean the Housing
Action: Wipe the case with a cloth dampened with 70% isopropyl alcohol. Do not immerse the thermometer. Do not use bleach or other cleaning solutions on the sensor lens.
Expected outcome: The housing is clean and dry without liquid intrusion or damage.
7. Check Battery and Power Operation
Action: Press the scan button and verify power-up, a readable display, and stable operation without a low-battery indication. Replace with a high-quality alkaline 9 V battery when needed.
Expected outcome: The device powers on consistently and remains stable.
Remove from service if: Battery replacement does not correct intermittent power, a blank display, or unstable operation.
8. Verify Basic Scan Operation
Action: Verify that the scan button starts measurement, the display updates during scanning, and the device produces repeatable readings during an appropriate non-patient check under stable conditions. Do not derive a clinical accuracy tolerance by comparing it with an uncontrolled surface or ordinary thermometer.
Expected outcome: Measurement starts and completes without an error or intermittent shutdown.
9. Verify Connected-Model Operation When Applicable
Action: Inspect the cable, connector, and strain relief. Obtain a valid local reading and confirm the same value transfers to the intended monitor or interface.
Expected outcome: Local and transferred values agree and the connection remains stable.
Remove from service if: The cable is damaged or transfer remains unreliable after approved connection checks.
10. Perform Optional CVK Calibration Verification
Action: Perform when required by facility policy, quality assurance, or an accuracy concern.
- Confirm matching Arterial or Oral prefixes and current Certified Master recertification.
- Power the blackbody verifier; confirm its LED is bright and allow approximately five minutes for warm-up.
- Equilibrate the Certified Master and test thermometer at the same room temperature for at least ten minutes; allow longer after hot or cold exposure.
- Confirm both lenses are clean. Do not use disposable covers.
- Measure the target with both thermometers under the same ambient conditions and compare readings.
Manufacturer-listed field limit: The TAT-5000S must be within ±0.2 °C / ±0.4 °F of the Certified Master. Repeat an out-of-limit comparison. If it remains out, remove the device from service and contact Exergen for replacement or factory service.
11. Complete the Return-to-Service Review
Action: Confirm inspection, cleaning, battery/power, scan operation, connected-data transfer when applicable, and CVK verification when performed all pass. Confirm no unresolved accuracy complaint remains.
Expected outcome: The thermometer is ready to return to service under facility policy.
Electrical Safety Testing
The TAT-5000S uses a 9 V battery. The reviewed manual does not list protective-earth resistance or touch/chassis leakage testing for the thermometer. Do not add inapplicable electrical-safety limits. Evaluate an externally powered verifier, receiving monitor, or accessory under its own documentation and facility policy.
Pass / Fail Criteria
PM Pass Criteria
- Housing, sensor head and lens, controls, battery compartment, cables, and accessories are intact.
- The sensor lens is clean, dry, and mirror-like.
- The thermometer powers on and completes scans consistently with a readable, stable display.
- Connected models transfer the correct value reliably when applicable.
- CVK verification, when performed, is within ±0.2 °C / ±0.4 °F of the matching Certified Master.
- No unresolved accuracy complaint remains.
Remove From Service Criteria
- Damage or liquid intrusion could affect safety or accuracy.
- The lens is scratched, damaged, or cannot be cleaned adequately.
- Power or display remains intermittent after battery replacement.
- Connected cable or data transfer remains unreliable.
- Repeated CVK comparison is outside the manufacturer limit.
- Recalibration or internal repair is indicated; refer these actions to Exergen.
Copy/Paste CMMS Work Order Procedure
Use the manufacturer service manual, facility policy, and approved AEM program to determine the final PM interval and return-to-service requirements.