iTrans™

Stainless Steel

O2, toxic or combustible gas detector
Corrosion resistant housing
Dual sensor platform (on-board & remote placement)
4-20 mA and ModBus RTU output

Product Information

Overview

Enclosed within an explosion-proof stainless steel housing, the Stainless Steel iTrans™ is built to withstand corrosion in harsh environments such as offshore drilling platforms, chemical plants or applications near a saltwater coastline.

The iTrans monitors employ an intelligent electronics platform to provide maximum flexibility, superior performance and lower installation costs. The three or four wire system allows gas sensors to be mounted on-board or remotely up to 200 meters away, and can accommodate more than 200 transmitters in RS485 bus configuration. Able to monitor any combination of gases for a specific environment, iTrans™ uses our industry-proven “smart” sensor technology and safety features including automatic sensor recognition, zero and cal fault protection, and access code security.

The microprocessor-controlled transmitters are capable of independent operation or multi-point system configuration and can transmit a 4-20mA signal or ModBus RTU digital output to any control device or PLC. 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.

iTrans also offers a relay deactivation feature to prevent accidental alarm activation during calibrations. The units also feature simple non-intrusive calibration, ultra-bright LED display, programmable alarms, and on-board sensor life indicators.

Specification

Technical Specifications

Enclosures:	Cast aluminum, poly-bonded coating or 316 stainless steel. Both are explosion-proof, NEMA 7X, IP66 rated
Sensors:	Combustible Gases: Catalytic bead and/or Non-Dispersive Infrared(NDIR) Oxygen / Toxic Gases: Electrochemical diffusion
Measuring Ranges:	Combustible gases: 0-100% LEL in 1% increments Oxygen: 0-30% by volume in 0.1% increments Ammonia: 0-200 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 Hydrogen: 0-999 ppm in 1 ppm increments
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.
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:	-4°F to +122°F (-20°C to +50°C), typical
Humidity Range:	15-90% RH (non-condensing), typical
Approvals: (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) IEC – Ex d IIB + H2 T5 (sensor-specific) China – GB 3836. 1-Ex d IIC T4; LEL version GB15322-94 Fire protection