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  • provides a wide range of industrial gas detection systems including toxic, oxygen and combustibles, truly "state of the art" devices offering unparalleled features and capabilities along with Hazardous Area, Explosion Proof, UL, Atex and CSA certifications at a reasonable price. We also offer gas detection solutions with PLC & SCADA.

  • Our Broad spectrum of skills, experience and hands-on approach ensures the success of Your project
  • We provide specialized products, services or turnkey projects, to suit your needs in
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Houston, TX USA

SKU#(4380) Be the First to Review this Item

BACHARACH  5600-3221


$1,435.50     Availability: 4 Weeks
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BACHARACH 5600-3221
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Bacharach GDX-350 Gas Sensor Transmitter and Monitor with Smart Sensor calibrated for Carbon Dioxide (CO2) 0-5% Vol. 3-wire and Low Temp versions. NDIR sensor. Graphic LCD. 4-20 mA Output. Aluminum Enclosure. Optional Modbus RTU. CSA Approved.

Part# with Options:        5600-3221
Price with Options:        1,435.50


(1) Model for Bacharach GDX-350 CO2

  Availability 4 Weeks  ]

Features and Benefits
  • Pre-calibrated Smart Sensor capability with 'plug-n-play' convenience minimizes maintenance and downtime
  • Non-Dispersive Infrared (NDIR), Catalytic Bead and Electrochemical sensor options available
  • Can be placed directly in hazardous environments where leaks occur for quick detection and rapid response
  • Graphic LCD for real-time monitoring of concentrations
  • 4-20 mA, optional Modbus RTU ® and wireless interface
  • Easily update alarm set points, configurations or maintenance modes using the LCD display
  • 30-minute onboard data trend
Standalone Operation in Harsh Environments

Bacharach's new state-of-the-art GDX-350 transmitters, with Smart Sensor technology, provide accurate and continuous detection of toxic, combustible and asphyxiate gases. The full-featured design of the GDX-350 includes a large LCD display, a 4-20 mA interface, programmable alarms, optional relays and a Modbus interface. Exclusive pre-calibrated replacement sensor technology makes occasional maintenance practically effortless. Rugged construction, intrinsic safety capability (in two-wire mode with barrier) and an explosion-proof housing allow the GDX-350 to operate directly in hazardous-rated areas of many industrial environments, delivering reliable, superior-sensing performance to protect human life, equipment and property.

With its large LCD display, the GDX-350 shows gas concentrations, engineering units and bar graphs along with the most recent 30 minutes of trend data. Utilizing the on-board magnetic keypad, users can also navigate through the display to change alarm set points, instrument configurations, or enter into maintenance mode for non-intrusive sensor calibration. For security, menu options also enable the selection of an authorization code to lock critical parameters. Accompanying the LCD display are standard LED alarm indicators that show when low and high alarm conditions are met. An optional relay board is available to provide three 5-amp relays that can be used to drive audible/visual alarms, or activate exhaust fans.

GDX-350 Product Specifications
Dimensions: 8.0” x 5.5” x 4.61” (20.32 cm x 13.97 cm x 11.71 cm)
Housing: Durable Aluminum Enclosure - Suitable for Class 1, Div. 1 & 2, Groups B, C, D
Front Panel: 5 Indicator Lights: Alarm 1, Alarm 2, Fail, In Calibration, and RS-485
User Interface: 64 x 128 Pixel LCD Graphic Display for Gas Readings, 30 Minute Trend, Bar Graphing, Engineering Units and Backlight
Operating Temperature Range: -40°F to 140°F (-40°C to 60°C)
Ambient Humidity Range: 5% - 90% RH Non-Condensing
Security Mode: Lock Out Critical Parameters
4-20 mA Output Signal: 3-wire, 4-20 mA. Max Loop Resistance is 750 Ω (@24 VDC)
Alarm Relays: 3 Configurable Form C (SPDT) Relays rated for 5 amp at 30 VDC or 240 ~ VAC RESISTIVE. | Relay 1 and Relay 2 Level Alarms are configurable for HIGH or LOW Trip, for Normally Energized (Failsafe) or Normally De-Energized and for Latching or Non-Latching.
Relay 3 is always Normally Energized for Failsafe Operation so any loss of power to the GDX-350 will be indicated as a “FAULT” condition.
Communications: RS-485, Modbus ®
Power: 10 - 30 VDC, 250 mA (@ 24 VDC)
Power Safety Mode: Fully automatic system reset. All program parameters are retained.
Approvals: CSA: Division 1 & 2, Class 1: Groups B, C, D (excludes NH 3 )

    5600-0004 Bacharach Calibration cup / sample draw adaptor for GDX-150 and GDX-350 detectors. ..

    5600-0003 Bacharach Splash guard/remote calibration cup for GDX-150 and GDX-350 detectors. ..

B2B Checkout Options: PO#, Designated Carrier and Tax-Exempt purchase
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> GAS DETECTORS > CARBON DIOXIDE :    16 Items found.

CO2Meter eSense FAI Wall-Mounted Carbon Dioxide (CO2) Alarm for LEED with Power Supply. Includes audible alarm and flashing light. 4-20mA Ouptut.




CO2Meter eSense FAI (Fresh Air Indicator) Wall-Mounted Carbon Dioxide (CO2) Alarm for OSHA 5000 ppm with Power Supply. Includes analog (0-6000 ppm) and digital (4-20mA) outputs. Audible Alarm.




CO2Meter eSense Programmable Wall-Mounted Carbon Dioxide (CO2) Alarm with Power Supply. Customizable 0-10V (0-3000 ppm) analog output.




CO2Meter eSense Programmable Wall-Mounted Carbon Dioxide (CO2) Alarm with Power Supply and Program Cable. Customizable 0-10V (0-3000 ppm) analog output.



GDS-48-1-53-01 (346) GDS  GDS-48-1-53-01

GDS GDS-48 Remote Gas Detector Transmitter with Stainless steel sensor head configured with SmartIR sensor for Carbon Dioxide (CO2) 0-5000 ppm to 0-100% Vol. 3-Wire Bridge Output. CSA Certified for Div. 1 Explosion Proof.



GDS-50-1-53-01 (1746) GDS  GDS-50-1-53-01

GDS GDS-50 Remote Infrared IR Sensor Transmiter for Carbon Dioxide (CO2) from 0 - 500 ppm to 0 - 100% volume with replaceable sensor and 4-20 mA Output. Designed for Class 1 Division 1. -20°C to +50°C. (Specify range)




Honeywell XCD Sensepoint Gas Detector, Carbon Dioxide (CO2) Infrared Sensor with Epoxy painted aluminium alloy LM25 housing, stainless steel sensor head, explosion-proof IP66, provides comprehensive monitoring of carbon dioxide (CO2) gas hazards in potentially explosive atmospheres, both indoors and outdoors. 3-wire 24 VDC power, include 2 programmable alarm relays, 1 programmable fault relay as well as an industry standard 4-20mA output (sink or source selectable); Modbus RTU option available. User-Selectable full scale range 2%Vol. only UL/CSA Class I Division 1 or ATEX IECEx available.



IR-F9-CO2-1%-N1 (1547) HONEYWELL  IR-F9-CO2-1%-N1

Honeywell Analytics Manning Airscan IR-F9 gas detector with Infrared sensor for Carbon Dioxide (CO2) with 4-20 mA output, 24VDC Power, NEMA-1 enclosure.


$1,128.90        HA# M-511793

TMII-00-00-00/48-53-05/0-0 (1984) GDS  TMII-00-00-00/48-53-05/0-0

GDS TRANSMAX II Gas Detector with Local DELDRIN sensor head with integrated sensor configured for Smart IR Carbon Dioxide (CO2) with range 0-5% to 0-100% Vol with optional Alarm Relay Board (3x 5A SPDT) and RS-485 Modbus RTU, 4-20mA output transmitter.




Honeywell XNX Universal Gas Detector Transmitter including MPD AMIC1 IR (infrared) CO2 Carbon Dioxide sensor 0-1%/0-5% Vol. HART® over 4-20mA output,UL/CSA approved, 5 x 3/4"NPT entries and painted Aluminum. UL Certified Class 1, Div 1 Groups A, B, C, D / ATEX Zone 1



GMII-00-000-00/01-053-02/0-0 (1778) GDS  GMII-00-000-00/01-053-02/0-0

GDS GASMAX II 3-Wire Gas Detector with local stainless steel sensor head configured for Smart IR Carbon Dioxide (CO2) with range 0-5% to 0-100% Vol, 4-20 mA output transmitter with optional Alarm Relay Board (3x 5A SPDT) and RS-485 Modbus RTU.



GDS-IR-1-132-1 (437) GDS  GDS-IR-1-132-1

GDS GDS-IR Infrared Remote Gas Detector Transmitter with Stainless steel sensor head configured for Carbon Dioxide (CO2) with range 0-3.5%, 0-5% v/v, 3-Wire output 4-20 mA transmitter, Explosion Proof (XP).



100-0008-A1/100-0015-CO2 (4752) ESP SAFETY  100-0008-A1/100-0015-CO2

ESP Safety Vector 2-channel gas detector controller with smart Plug-In Sensor to Detect Carbon Dioxide (CO2) 0-2% vol, 0-5% vol or 0-3000ppm. Operates as a stand-alone display for a variety of ESP sensors which can be remotely located up to 500 feet away over 4-wire RS-485. Sensor head can also be attached. Includes analog 4-20 current loop with HART, Digital RS-485 Modbus RTU and 4 relays. 96-Character OLED Screen. Explosion-proof housing. IP67. SIL certification.



C2-48-053-01/00-000-00/0-0-0-0-0/0-0 (1859) GDS  C2-48-053-01/00-000-00/0-0-0-0-0/0-0

GDS C2 2-Channel Gas Detector Integral Alarm Controller with local DELRIN sensor head with SmartIR integrated sensor configured for Carbon Dioxide (CO2) with range 0-3.5%/5%/100% Vol. with standard 2x 5A SPDT relays, with optional visual-audible alarm, in standard CSA approved, Class I, Division 2 - NEMA 4X non-metallic enclosure 120 VAC, ready to use. With second channel available for optional sensor for EC/Toxic, catalytic, IR or PID sensors.Pushbutton Zero and Span calibration for direct sensors.



5100-88-IT-A1-01-0-0 (3082) SIERRA MONITOR  5100-88-IT-A1-01-0-0

Sierra Monitor 5200-88-IT Infrared Gas Leak Detector for Carbon Dioxide (CO2) 0-5000ppm. ModBus RTU-485, 4-20mA output, HART interface and optional alarm relays, Explosion proof NEMA-4X Aluminium Enclosure. IP66. IP65. Class I, Div. 1, Groups B, C, D.



GD10-P00-23BC-00H (5114) SIMTRONICS  GD10-P00-23BC-00H

Simrad GD10P IR Point Gas Detector for Carbon Dioxide (CO2) with selectable ranges (3-100% vol) on offshore installations. 4-20 mA output with HART. 24 VDC. Available Approvals: ATEX, CSA/US, IECEx, INMETRO, ABS, SIL and MED.



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