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Detcon TP-700 - User Manual

Detcon TP-700
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INSTRUCTION MANUAL
Detcon Model TP-700
TP-700 Hydrogen Sulfide Sensor
This manual covers the following ranges:
0-20ppm, 0-50ppm, 0-100ppm and 0-200ppm
DETCON, Inc.
4055 Technology Forest Blvd.,
The Woodlands, Texas 77381
Ph.281.367.4100 / Fax 281.298.2868
www.detcon.com
June 05, 2018 • Document #3150 • Revision 4.1

Table of Contents

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Summary

Introduction

Description

Details the Detcon Model TP-700 H2S sensor, its detection ranges, LED display, and output signals.

Sensor Electronics Design

Explains the Intelligent Transmitter Module (ITM) components, including microprocessor and I/O protection.

Modular Mechanical Design

Describes the four main parts of the TP-700 sensor assembly and their construction materials.

Plug-in Replaceable Sensor

Covers the field-replaceable H2S sensor, its gold-plated connections, and warranty.

Installation

ATEX Operational Guidelines for Safe Use

Provides essential safety instructions for installing the sensor in ATEX-classified hazardous areas.

Sensor Placement

Discusses critical factors for selecting optimal sensor locations to ensure safe and accurate gas detection.

Sensor Contaminants and Interference

Lists common airborne substances and gases that can affect sensor performance, including interference data.

Mounting Installation

Guides on threading the sensor assembly into enclosures and proper mounting orientation for optimal viewing.

Electrical Installation

Explains correct electrical installation procedures according to codes, emphasizing water leakage prevention.

Field Wiring

Details the required conductor connections for power, 4-20mA output, and RS-485 serial interface.

Initial Start Up

Provides cautions and initial steps for powering up the sensor assembly after installation.

Initial Operational Tests

Outlines procedures to verify sensor sensitivity to H2S gas after initial setup and warm-up period.

Operation

Programming Magnet Operating Instructions

Explains how to use the magnetic programming tool to interact with the sensor's menu switches.

Operator Interface

Describes the menu-driven interface using magnetic switches and lists the main menu categories and sub-menus.

Normal Operation

Details the ITM display behavior, fault reporting, and the 4-20mA and Modbus outputs during normal use.

Calibration Mode (AutoSpan)

Explains the process, requirements, and materials for performing span calibration using the AutoSpan function.

Program Mode

Introduces Program Mode for checking and adjusting parameters, listing its available sub-menus.

Navigating Program Mode

Guides on how to navigate through menu items and select them using the programming magnet.

View Sensor Status

Details how to view current configuration and operational parameters like sensor type, range, and life.

Set AutoSpan Level

Explains how to set the span gas concentration level for accurate sensor calibration.

Set Range

Describes how to change the full-scale detection ranges of the sensor (e.g., 0-20ppm).

Set Serial ID

Guides on setting the Modbus™ serial ID address for device polling and identification.

Set Heater Power

Explains how to set the sensor heater power, necessary after sensor replacement or factory reset.

Signal Output Check

Details how to perform a simulated 4-20mA and Modbus output check for system testing and troubleshooting.

Restore Factory Defaults

Explains how to reset the sensor to factory default settings and the implications for configuration.

Program Features

Introduces diagnostic and operational features designed for fail-safe operation.

Operational Features

Covers sensor behavior during over-range conditions, calibration status, sensor life, and days since last calibration.

Fault Diagnostic;Failsafe Features

Details the fail-safe design and how diagnostic faults are reported and displayed on the ITM.

RS-485 Modbus Protocol

Service and Maintenance

Calibration Frequency

Recommends calibration intervals and procedures to prevent AutoSpan Faults.

Visual Inspection

Details annual inspection points for corrosion, blockages, and water damage on the sensor and housing.

Condensation Prevention Packet

Explains the function and recommended annual replacement of the condensation prevention packet.

Replacement of Plug-in H2 S Sensor

Provides step-by-step instructions for safely removing and installing a new plug-in H2S sensor.

Replacement of ITM

Offers detailed instructions for safely removing and installing a new Intelligent Transmitter Module (ITM).

Replacement of TP-700 Sensor Assembly

Guides on replacing the entire sensor assembly, including initial calibration requirements.

Replacement of the Bottom Housing

Details the procedure for replacing the bottom housing, particularly if the flame arrestor is compromised.

Troubleshooting Guide

Customer Support and Service Policy

Warranty Notice

Outlines the warranty terms for the ITM electronics and the plug-in H2S sensor, including limitations.

TP-700 Sensor Warranty

Appendix

Specifications

Lists detailed technical specifications for the TP-700 sensor, including ranges, accuracy, and classifications.

Detcon TP-700 Specifications

General IconGeneral
BrandDetcon
ModelTP-700
CategoryAccessories
LanguageEnglish

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