iTrans2 IR Fixed Gas Detector

Overview

The Oldham iTrans2 infrared gas detector employs an intelligent electronics platform to provide one or two points of detection from a single head for maximum flexibility, superior performance and lower installation costs. With the optional HART Communication Protocol, the Oldham iTrans2 offers remote diagnostics, set-up or calibration by superimposing a high-frequency current across the industry standard 4-20mA analogue line.

The iTrans2 Offers Automatic Sensor Recognition, Access Code Security, and Zero and Cal Fault Protection

With the ability to detect any combination of gases for a specific environment, the Oldham iTrans2 utilises Oldham's industry-proven “smart” infrared gas sensor technology and safety features including automatic sensor recognition, access code security, and zero and cal fault protection – all enclosed within an explosion-proof aluminum or stainless steel housing. The microprocessor-controlled transmitters are capable of independent operation or multi-point system configuration. The infrared sensor provides explosive gas detection (methane, butane, propane, ethylene, hexane, etc.) in more severe environmental conditions, where the presence of poisons could harm the use of a catalytic cell.

Additional to the LEL sensor range, the Oldham iTrans2 fixed gas detector can also be configured with a 0-100% volume methane infrared sensor for bio-gas applications and CO₂ infrared sensors ranging from 0.5% volume to 100% volume.

Stand-Alone Operation(*)

With optional on-board relays, this fixed gas detector has the added ability of stand-alone operation, activating alarms, horns, or fans and can also shut down a system without the need to wire back to a central control panel.

(*) versions with local visible alarm are to be installed in ordinary locations only

For more information on the iTrans2 IR Fixed Gas Detector, contact your local Air-Met office.

Features

Oldham iTrans2 Fixed Gas Detection Features
Dual Gas Sensing	The iTrans2 can detect and display up to two gases on certain models. Both gas sensors may be mounted directly to the transmitter, or may be mounted remotely.
Wide Sensor Offering	The iTrans2 supports Electrochemical, Catalytic Bead and Infrared sensors. The iTrans2 is available for most common industrial gases, allowing of standardisation for your gas detection equipment.
Smart Sensors	Smart sensors come factory pre-calibrated and automatically send sensor information, such as sensor life, to the transmitter. A sensor life indicator is displayed immediately after each calibration.
Dual-Channel Split Screen LED Display	For optimum visibility in dark places.
Non-Intrusive Calibration	The iTrans's non-intrusive interface keys operate with a simple magnetic wand and allow for full transmitter configuration and calibration without opening the unit’s explosion-proof housing.
Programmable Relays	The microprocessor-controlled transmitters are capable of independent operation or multi-point system configuration. With optional on-board relays, the monitor has the added ability of stand-alone operation, activating alarms, horns or fans, and can also shut down a system without the need to wire back to a central control panel.
Multiple Wiring Options	The iTrans2 can be configured to meet almost any installation application. Common configurations include: 3-Wire (4-20mA) Models - Allow for full utilisation of the 's features and options and can be used with all of the iTrans2's sensors. 4-Wire (Digital ModBus) Models - Allow for full utilisation of the 's features and options and can be used with all of the iTrans2's sensors.
HART™ Communication Protocol	With the optional HART Communication Protocol, the iTrans2 offers remote diagnostics, set-up or calibration by superimposing a high-frequency current across the industry standard 4-20mA analogue line.
Stainless Steel Enclosure	An optional stainless steel enclosure for corrosive environments.

Specifications

iTrans2 Fixed Gas Detection Measuring Ranges
Combustible gases	0-100% LEL in 1% increments
Methane (by Vol)	0-100% by Volume in 1% increments
Hydrogen	0-999 ppm in 1 ppm increments
Oxygen	0-30% by Volume in 0.1% increments
Ammonia	0-500 ppm in 1 ppm increments
Carbon Monoxide	0-999 ppm in 1 ppm increments
Hydrogen Sulfide	0-500 ppm in 1 ppm increments
Sulfur Dioxide	0.2-99.9 ppm in 0.1 ppm increments
Hydrogen Cyanide	0.2-30 ppm in 0.1 ppm increments
Hydrogen Chloride	0.2-30 ppm in 0.1 ppm increments
Phosphine	0-1 ppm in 0.01 ppm increments
Nitrogen Dioxide	0.2-99.9 ppm in 0.1 ppm increments
Nitric Oxide	0-999 ppm in 1 ppm increments
Chlorine	0.2-99.9 ppm in 0.1 ppm increments
Chlorine Dioxide	0.02-1 ppm in 0.01 ppm increments
Carbon Dioxide	0-100% by Volume in 1% increments
Carbon Dioxide	0-0.5% by Volume in 0.01% increments
Carbon Dioxide	0-5% by Volume in 0.01% increments

iTrans2 Technical Specifications
Enclosures:	Cast aluminum, poly-bonded coating or 316 stainless steel. Both are explosion-proof, NEMA 7X, IP66 rated
Sensors:	Combustible Gases: Catalytic, Infrared Catalytic Toxic / Oxygen: Electrochemical, Infrared (CO2)
Input Current (Max):	Toxic Gas / Oxygen: 150 mA at 24 VDC (single gas) Combustible gases (Catalytic): 175 mA at 24 VDC, 0.6 A peak (single gas) Combustible gases (Infrared): 150 mA at 24 VDC, 0.6 A peak (single gas) Combined catalytic/infrared: 280 mA at 24 VDC (two gas)
Input Voltage:	12-28 VDC operating range (24 VDC typical)
Display:	Dual-channel split-screen LED display(4 digit,7-segment arrangement per channel) provides simultaneous display of one or two gases.
Signal Output:	4-20 mA, linear (analog) and ModBus RTU (digital) RS485 digital communication with ModBus RTU software protocol system at 9600 baud. Three or four wire system capable of accommodating over 200 devices in bus configuration. Address selection through on-board 8-position dipswitch. Optional: HART Protocol
Alarm Relays:	3 alarm relays: Two user-programmable relays, SPST, N.O.; plus one fault relay, SPST, N.C.
Contact Capacity:	5 Amps at 30 VDC
Temperature Range:	-40°C to +75°C (-40°F to +167°F), typical
Humidity Range:	10-90% RH (non-condensing), typical
Approvals (except Stand-Alone version): (Sensor-specific)	Consult factory for current approval status NRTL/c and CSA – Class I, Div. 1, 2, Groups B, C, D; AEx d IIB + H2 ATEX – Ex d IIB + H2 T5 (sensor-specific) IECx – Ex d IIB + H2 T5 (sensor-specific) China – GB 3836. 1-Ex d IIC T4; LEL version GB15322-94 Fire protection