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SharpEye 20/20L User Manual

SharpEye 20/20L
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UV/IR Flame Detector
Model 20/20L-LB
User's and Maintenance Manual
TM20/20LB Rev E, August 2004
Factory Mutual Approved
Class I Div. 1 Groups B, C, D
Class II Div. 1 Groups E, F, G
ATEX Approved
Ex II 2G
EExd IIB + H
2
T5
EExde IIB + H
2
T5
218 Little Falls Rd., Cedar Grove, NJ 07009 USA;
Phone: +1 (973) 239 8398 Fax: +1 (973) 239 7614
Web-Site: www.spectrex.net
; Email: spectrex@spectrex.net

Table of Contents

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SharpEye 20/20L Specifications

General IconGeneral
BrandSharpEye
Model20/20L
CategorySmoke Alarm
LanguageEnglish

Summary

1. Scope

1.1 Product Overview

Overview of the Spectrex Model 20/20L, 20/20LB UV-IR Flame Detector.

1.2 Document Overview

Description of the manual's structure and content, covering installation, operation, and maintenance.

2. Technical Description

2.1 Principles Of Operation

Explains how the UV-IR detector senses fire by measuring UV and IR radiation.

2.2 Sensing Elements

Details the IR sensor (2.5-3.0 micron) and UV sensor (0.185-0.260 micron).

2.3 Detection Levels

Describes warning, alarm, and flash-fire detection levels based on UV and IR signal intensity.

2.4 Alarm Signal Delay

Configurable delay (0-30s) for alarm execution after detection conditions are met.

2.5 Built-In-Test (BIT) Capabilities

Automatic and manual testing of internal circuits, sensors, and window cleanliness.

2.6 Detector Structure

Refers to outline and schematic drawings of the flame detector assembly.

2.7 System Configuration

Describes detector's use as a stand-alone unit or part of a complex system.

2.8 Detector Types

Differentiates between 20/20LB (with BIT) and 20/20L (without BIT), and housing options.

3. Performance

3.1 Detection Sensitivity

Defines detection distance for a standard fire, sensitivity ranges, and response time.

3.2 Cone Of Vision

Details the horizontal and vertical fields of view (90° each) and relative range.

3.3 False Alarms

Lists radiation sources to which the detector is immune to prevent false alarms.

4. Operation

4.1 Visual Indications

Describes the function of the Yellow and Red LEDs for status and alarm indication.

4.2 Output Signals

Lists the detector's control outputs: Alarm Relay, Accessory Relay, Fault Relay, and 4-20mA.

4.3 Mode Selection

Explains the use of DIP switches (SW1, SW2) to adapt detector operation.

4.3.1 Function switch (SW1)

Details the function of each switch on SW1 for mode selection, latching, and BIT.

4.3.2 Alarm Delay Switch (SW2)

Describes the SW2 settings for programmable alarm delay times (0-30 seconds).

4.4 Detector States

Outlines various detector states like Normal, BIT, Warning, Alarm, Fault, and their corresponding outputs.

4.5 Built-In-Test (BIT)

Explains the principles, manual, and automatic BIT procedures and their outcomes.

5. Technical Specifications

5.1 Electrical Specifications

Covers operating voltage, power consumption, input protection, and electrical interface terminals.

5.2 Mechanical Specifications

Details enclosure material, explosion proof ratings (FM, ATEX), electrical modules, connection types, dimensions, and weight.

5.3 Environmental Specifications

Lists specifications for high/low temperature, humidity, salt/fog, water/dust, shock/vibration, and EMC.

Mechanical

Summarizes explosion proof enclosure, ATEX ratings, and dimensions.

Electrical

Summarizes power, current, and rechargeable battery specifications.

Environmental

Summarizes temperature range, vibration protection, and water/dust rating.

Physical

Details detector dimensions and weight for different enclosure types.

Range

Lists standard and extended detection ranges for different detector models.

6. Installation Instructions

6.1 Introduction

States the chapter's focus on installation considerations and safety precautions.

6.2 General Considerations

Emphasizes aiming, unobstructed view, tilting, and factors affecting spacing/location.

6.3 Preparations For Installation

Outlines steps for verifying purchase order, inspecting components, and preparing for wiring.

6.4 Conduit Installation

Provides guidelines for conduit placement, sealing, and cable pulling to prevent condensation and stress.

6.5 Detector Mounting

Describes mounting options using fabricated brackets or the optional Swivel Mount.

6.5.1 Swivel Mount Kit

Lists items included in the Swivel Mount Kit for US and EU versions.

6.5.2 Swivel installation

Step-by-step guide for installing the Swivel Mount and attaching the detector.

6.6 Wiring

Instructions for disconnecting power, removing housing, and pulling wires for connection.

6.7 Terminal Wiring

Explains the function of each terminal on the detector's terminal board.

6.8 Selection Of Operating Modes

Guides on setting the Function Switch (SW1) and Alarm Delay Switch (SW2) for desired operational modes.

7. Operating Instructions

7.1 Scope

States the purpose of the instructions to achieve optimal detector performance.

7.2 Power-Up

Details the power-up sequence, automatic self-test, and initial status indications.

7.3 Reset

Explains how to reset the detector from an Alarm Latch state or after a fault.

7.4 Functional Testing

Procedure to test proper wiring and detector functionality using manual BIT.

7.5 Testing With Fire Simulator

Describes how to simulate a fire condition using a fire simulator for testing.

7.6 Safety Precautions

Lists essential safety guidelines for operating and maintaining the detector.

8. Maintenance Instructions

8.1 Scope

Covers preventive maintenance, fault identification, and corrective measures.

8.2 Maintenance Instrumentation And Personnel

Specifies the tools and personnel qualifications required for maintenance.

8.3 Preventive Maintenance Procedures

Details cleaning procedures for the viewing window and reflector.

8.4 Periodic Maintenance Procedures

Outlines functional testing requirements every six months.

8.4.1 Power Up Procedure

Recommends performing power-up procedure after system power restoration.

8.4.2 Functional Test Procedure

Directs users to perform functional tests described in sections 7.4 and 7.5.

8.5 Maintenance Records

Emphasizes recording all maintenance operations in a system log book.

8.6 Troubleshooting

Provides guidance on diagnosing and resolving common faults and false alarms.

8.6.1 Fault Indication

Suggests checks for voltage, wiring, and window cleanliness for fault indications.

8.6.2 False Alarm or Warning Indication

Offers troubleshooting steps for false alarms or warning indications.

Appendix D. Long Range UV/IR Fire Simulator

Product Description

Describes the SharpEye UV/IR Long-Range Fire simulator 20/20-311.

Unpacking

Lists the contents expected in the delivery of the fire simulator.

Operating Instructions

Provides warnings and instructions for using the fire simulator.

Specifications

Mechanical

Summarizes explosion proof enclosure, ATEX ratings, and dimensions.

Electrical

Summarizes power, current, and rechargeable battery specifications.

Environmental

Summarizes temperature range, vibration protection, and water/dust rating.

Physical

Details detector dimensions and weight for different enclosure types.

Range

Lists standard and extended detection ranges for different detector models.