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Detcon FP-524D - User Manual

Detcon FP-524D
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INSTRUCTION MANUAL
Detcon Model FP-524D
PGM 1
PGM 2
MODEL FP-524DHOUSTON, TEXAS
FLT 1 2 CAL
MicroSafe LEL Gas Sensor
ALM ALM
TM
FP-524D Combustible Gas Sensor
(0 – 100% LEL)
DETCON, Inc.
4055 Technology Forest Blvd, Suite 100,
The Woodlands, Texas 77381
Ph.281.367.4100 / Fax 281.298.2868
www.detcon.com
June 06, 2018 • Document #3597 • Revision 1.6

Table of Contents

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Summary

Introduction

1.1 Description

Details the Detcon Model FP-524D LEL Combustible sensor, its features, and technology.

Modular Mechanical Design

1.2 Modular Mechanical Design

Explains the modular structure of the FP-524D sensor assembly and its four main parts.

Installation

2.1 Operational Guidelines for Safe Use

Provides essential safety guidelines and precautions for installing the sensor in various environments.

2.2 Sensor Placement

Discusses critical factors for selecting optimal sensor locations for accurate gas detection.

2.3 Sensor Contaminants and Interference

Explains how airborne substances can affect sensor performance and lists potential inhibitors and poisons.

2.4 Mounting Installation

Details the correct vertical orientation and methods for mounting the sensor assembly, including junction box installation.

2.5 Electrical Installation

Covers the requirements for electrical installation, including area classifications and compliance with local codes.

2.6 Field Wiring

Explains the three-conductor connections required for power and the 4-20mA output, including wire gauge and distance limits.

2.7 Remote Mounting Installation

Describes how to install the sensor head remotely from the transmitter, including wiring and separation limits.

2.7.1 Bridge Voltage Adjustment

Explains the one-time setting required for optimal bridge voltage when remote mounting.

2.8 Initial Start Up

Guides the user through the initial power-up sequence and normal operating conditions after installation.

Operation

3.1 Programming Magnet Operating Instructions

Details how to use the magnetic programming tool to interact with the sensor's interface for calibration and configuration.

3.2 Operator Interface

Explains the menu-driven interface operated by magnetic switches and lists the main menu items.

3.3 Normal Operation

Describes the sensor's behavior during normal operation, including display readings and 4-20mA output.

3.4 Calibration Mode (AutoZero and AutoSpan)

Covers the procedures for performing AutoZero and AutoSpan calibrations to ensure reliable detection.

3.4.1 AutoZero

Details the process of zero calibrating the sensor using ambient air or zero gas.

3.4.2 AutoSpan

Explains how to perform a span calibration using a certified gas mixture to verify sensor accuracy.

3.5 Program Mode

Introduces the mode for viewing sensor status and adjusting configuration parameters like AutoSpan, Gas Factor, and Cal Factor.

3.5.1 View Sensor Status

Describes how to access and view various operational parameters and configuration settings of the sensor.

3.5.2 Set AutoSpan Level

Guides on setting the specific concentration level for span gas calibration.

3.5.3 Set Gas Factor

Explains how to adjust the gas factor for different target gases to ensure accurate readings.

3.5.4 Set Cal Factor

Details setting the calibration gas factor for accurate span calibration with gases other than methane.

3.5.5 Set Bridge Voltage

Describes the process of setting the optimal bridge voltage for sensor performance.

3.5.6 Signal Output Check

Explains how to simulate the 4-20mA output for system checks and troubleshooting.

3.5.7 Restore Factory Defaults

Guides on restoring the sensor to its original factory default settings.

3.5.8 Alarm 1 and 2 Settings

Covers configuring alarm levels, latching, and ascending/descending modes for both alarms.

3.5.9 Fault Settings

Explains how to configure the Fault LED's latching behavior for fault condition indication.

3.6 Program Features

Introduces diagnostic features for Fail-Safe Operation, including operational and failsafe diagnostics.

3.6.1 Operational Features

Details operational features like Over-Range indication, In-Calibration Status, Sensor Life, and Last AutoSpan Date.

3.6.2 Fault Diagnostic;Failsafe Features

Explains the sensor's fail-safe design and how diagnostic faults are displayed and handled.

Service and Maintenance

Replacement of Combustible Gas Sensor

Provides step-by-step instructions for replacing the plug-in combustible gas sensor.

Replacement of Transmitter Module

Details the procedure for replacing the transmitter module.

Troubleshooting Guide

Customer Support and Service Policy

Appendix

8.1 Specifications

Lists detailed technical specifications including sensor type, ranges, accuracy, response time, and classifications.

8.2 Spare Parts, Sensor Accessories, Calibration Equipment

Lists part numbers for spare parts, accessories, and calibration equipment required for the sensor.

Revision Log

Detcon FP-524D Specifications

General IconGeneral
BrandDetcon
ModelFP-524D
CategoryAccessories
LanguageEnglish

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