Inspection, testing, and maintenance

Inspection, testing and maintenance must be done by qualified personnel. The schedule below is the minimum required.

Interval

Task

Reference

Monthly

Inspect lens for contamination, dust, or obstruction. Clean if required.

Monthly

Check power LED status (flashing green = normal).

Monthly

Inspect mounting hardware, confirm bracket is secure and FOV is unchanged.

Camera installation

Semiannual

Trigger alarm output test, check that FACP receives and transmits correctly.

Quarterly

Check that the trouble/fault output works correctly.

Quarterly

Check firmware version. Update if new version is available.

As needed

Emissivity setting verification after change in monitored material.

Regions of interest and emissivity

As needed

Re-aim and re-lock bracket if FOV is found to have shifted.

Camera installation

Go/No-Go test procedure

WARNING

A controlled heat source can cause burns. Handle heated test equipment with care and follow the source manufacturer’s safety instructions.

  1. Put a controlled heat source within the detector’s field of view at the intended monitoring distance, positioned so that its apparent temperature exceeds the configured alarm threshold (for example, approximately 100°C (212°F) for a typical threshold, higher for high-threshold applications). A controlled heat source is, for example, a temperature-controlled hot plate.

  2. The alarm output (DIGOUT1A/1B) shall activate within the configured threshold time.

  3. The FACP shall receive and transmit the alarm correctly.

  4. Reset the FACP alarm after verification.

  5. Write test date, technician, and result in the system maintenance record.

Trouble output test procedure

  1. Temporarily block the detector lens (cover with opaque material).

  2. Chech that the FACP receives a trouble signal within the system check-in interval.

  3. Remove the blocker.

  4. Check that the FACP clears the trouble signal.

  5. Write test date, technician, and result in the system maintenance record.

See NFPA 72 section 17.12.2.3 (clear line-of-sight) and section 17.12.6 (supervisory signal when blocked/dirty) for reference.

Field acceptance and reacceptance testing

Field acceptance testing verifies that the installed detector and its connections to the fire alarm system perform correctly in the installed configuration. Perform field acceptance at initial system acceptance, after any change affecting the detector or its circuits (reacceptance), and at the periodic interval defined in the inspection, testing, and maintenance schedule. All testing shall be performed by qualified personnel in accordance with NFPA 72 chapter 14 and the requirements of the authority having jurisdiction (AHJ).

  1. Verify the detector is mounted in accordance with the installation requirements, that the field of view covers the protected area without obstruction, and that aiming and focus are correct for the target detection distance.

  2. Verify the alarm and trouble/fault connections to the FACP are correct and supervised, and that the FACP indicates the detector in the normal condition.

  3. Alarm test. Perform the Go/No-Go test procedure, see section Go/No-Go test procedure and confirm the alarm is received and correctly annunciated at the FACP. Use a controlled heat source and test distance appropriate to the lens and configured alarm threshold, as described in section Go/No-Go test procedure.

  4. Supervisory/trouble test. Perform the Trouble output test procedure, see section Trouble output test procedure and confirm the FACP receives the supervisory/trouble signal when the lens is obstructed and clears it when the obstruction is removed. This verifies the obstruction supervision required by NFPA 72 section 17.12.

  5. Where standby (secondary) power is provided, verify the secondary power source and battery condition in accordance with the system design and NFPA 72.

  6. Restore the system to normal. Record the test date, technician, methods used, and results in the acceptance or ITM record, and provide records to the AHJ as required.

Note

Test methods, intervals, and documentation shall conform to NFPA 72 chapter 14 for this device category and to the requirements of the AHJ.