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Oldham iTrans 2 User Manual

Oldham iTrans 2
106 pages
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FIXED POINT
SINGLE OR DUAL GAS MONITOR WITH
DUAL ANALOG OUTPUTS
Installation • Operation • Wiring • Troubleshooting
Part Number: 77036429-EN
Version: 01
Release Date: June 29, 2013

Table of Contents

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Oldham iTrans 2 Specifications

General IconGeneral
EnclosureAluminum or Stainless Steel
Target GasCombustibles, H2S, CO, O2
Output4-20 mA, HART
DisplayLCD
Hazardous Area ApprovalATEX, IECEx
Operating Humidity0-99% RH (non-condensing)
ResolutionVaries by gas
Response Time< 30 seconds
Protection RatingIP66
Measurement RangeVaries by gas. Combustibles: 0-100% LEL, H2S: 0-100 ppm, CO: 0-500 ppm, O2: 0-25% vol, NH3: 0-100 ppm, Cl2: 0-10 ppm, HCN: 0-30 ppm, NO2: 0-10 ppm, SO2: 0-20 ppm

Summary

Chapter 1 | Overview

Overview of the Gas Monitor

Describes the iTRANS-2 fixed gas monitor, its capabilities, and features.

Chapter 2 | Hardware Overview

Chapter 3 | Installation

Chapter 4 | System Wiring

Alarm Relay Wiring

Details how to connect control wires to the relay terminals for alarm and fault signals.

Power and Output Wiring

Explains how to connect power supply and 4-20 mA output signals to connector J1.

Sensor Wiring

Describes connecting sensor wires to connector J3, including wire color coding.

Digital ModBus RTU Interface Wiring

Covers connecting the ModBus interface to digital control systems, PLCs, or HMIs.

Chapter 5 | Operation

Programming Mode Overview

Introduces the two programming modes (non-intrusive and push-button) and their functions.

Programming Mode – Non-intrusive Operation

Explains how to use a magnetic wand for configuration tasks like sensor type, zeroing, and calibration.

Zeroing

Explains the process of zeroing the instrument using keypad or magnetic wand.

Calibration

Details the process of calibrating the instrument using keypad or magnetic wand.

Changing Span Gas Concentration

Explains how to set the span gas concentration for calibration.

Programming Mode – Push Button Operation

Describes how to access programming options using physical keys after entering a password.

Set Low Alarm

Details how to set the low alarm threshold for a channel.

Set High Alarm

Details how to set the high alarm threshold for a channel.

Chapter 6 | Modbus Interface

Sample Gas Reading via ModBus Network

Explains how to read gas readings from Channel 1 and Channel 2 via the ModBus network.

ModBus Register List

Provides a detailed list of ModBus registers, their addresses, and descriptions.

Chapter 7 | Maintenance

Sensor Replacement

Provides instructions for qualified personnel to replace a sensor.

Zero and Calibration

Details the methods for zeroing and calibrating the instrument.

Chapter 8 | Troubleshooting

Diagnosing Common Problems

Presents common symptoms, their potential problems, and solutions in a table format.

Chapter 9 | Warranty

Appendix A | HART Interface

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