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Net Safety UV/IRS-A - User Manual

Net Safety UV/IRS-A
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MAN-0015 Rev 14 UVIRS-A/AR
November 07, 2008
Ultraviolet / Infrared
Flame Detector
User Manual
Model:
UV/IRS-A
OR AR
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Summary

IMPORTANT INFORMATION

Warranty

Details the warranty duration for sensors and other electronic assemblies.

Contact Information

Provides company contact details including address, phone, fax, and website.

INTRODUCTION

Spectral Sensitivity Range

Explains the UV and IR wavelengths detected and immunity to other light sources.

Locate Detector

Lists factors for optimal positioning of fire detectors based on fire characteristics.

Typical applications

Lists common environments and industries where the UV/IRS detector is deployed.

Potential ignition sources

Identifies common hydrocarbon fuels that can act as ignition sources.

Potential inhibitors

Absorbing Gases

Discusses how UV absorbing gases can impact detector performance and detection.

Immune

Lists conditions and activities to which the UV/IRS detector shows immunity.

RANGE

Field of View

Installation Considerations

Provides guidelines for mounting and positioning detectors for optimal performance.

UNPACK

REFLECTOR POSITIONING

FIELD INSTALLATION

Wiring

Details detector wiring requirements, conduit use, and cable specifications.

Grounding

Emphasizes correct shielding and grounding procedures for safe installation.

Sealing

Recommends conduit seals to prevent moisture ingress and maintain integrity.

CONNECTING

DETECTOR SETUP

SYSTEM SENSITIVITY

Explains adjustment of detector sensitivity based on radiation intensity and flame conditions.

Time Delay Setting

Describes the function of time delay for fire alarm signaling and its benefits.

RELAY SETTINGS

Coil and Latch Status

Details DIP switch settings for fire relay operation (latching/non-latching modes).

Remote Reset

Explains how to reset the detector when configured for latching status.

Final Setup

Lists essential final checks and actions after detector installation and configuration.

DETECTOR FUNCTIONALITY

DETECTOR WINDOW;LENS

Describes detector viewing windows and the optional heater function.

START UP PROCEDURE

Outlines the detector's 90-second start-up routine and normal operation indicators.

System Check

Advises on performing system checks and disabling external equipment during testing.

MONITOR

Condition Status-LEDs

Explains the meaning of the detector's status indicator LEDs.

Condition Status-Current Output

DETECTOR MAINTENANCE

TESTING

Highlights the need for periodic checks to ensure maximum detector sensitivity.

Manual Check Procedure

Provides steps for manually verifying detector obstruction and VI circuit function.

Automatic Visual Integrity (VI) Test

Describes the automatic VI test and its role in detecting obstructions or faults.

Manual VI Test

Test Procedure

Details steps for performing a manual VI test and interpreting the results.

CLEANING WINDOW;LENS AND REFLECTOR

O-ring

Explains the function and inspection of the detector's o-ring for watertightness.

HOW TO RETURN EQUIPMENT

TROUBLESHOOT

Possible Problems and Solutions

A guide to identifying and resolving common false alarm conditions and detector faults.

APPENDIX A: COMMON UV ABSORBING GASES

APPENDIX B: ELECTROSTATIC SENSITIVE DEVICE (ESD)

APPENDIX C: RESISTANCE TABLE

APPENDIX D: SPECIFICATIONS

APPENDIX E: UVIRS DATA

APPENDIX E: UVIRS DATA (CONTINUED)

TROUBLESHOOTING GUIDE: UV;IRS Flame Detectors

Possible Cause

Lists potential causes for various detector operational issues and fault indicators.

Possible Solution

Provides recommended actions and solutions for troubleshooting detector problems.

Net Safety UV/IRS-A Specifications

General IconGeneral
Sensor TypeUV/IR flame detector
Humidity0 to 95% RH, non-condensing
EnclosureStainless steel
Enclosure RatingIP66/67
Detection PrincipleUltraviolet and Infrared Sensing
Detection RangeUp to 30 meters
Field of View90 degrees horizontal
Operating Temperature-40°C to +75°C (-40°F to +167°F)
Power Supply18-30 VDC
Outputs4-20 mA
ApprovalsFM, ATEX, IECEx, CSA
Response Time≤ 5 seconds