D-Rex Oxygen Monitor for MRI Rooms

D-ReX Fixed Gas Detection Systems

The D-ReX is a versatile fixed gas detection system designed to ensure safety in a wide range of environments, including MRI rooms. In MRI labs, maintaining the right oxygen levels is critical because MRI machines often rely on liquid nitrogen or other cryogenic gases to operate. In case of a malfunction, these machines can potentially release large amounts of nitrogen into the atmosphere, which poses a significant risk by displacing oxygen in the room. This sudden drop in oxygen can lead to hypoxia (oxygen deficiency), a serious safety hazard for personnel.

The D-ReX gas detection system is engineered to monitor oxygen levels in real-time, providing early warning signs of dangerous oxygen depletion. Its advanced extraction mode allows it to detect gas levels at the point of sampling, making it particularly useful for ensuring safety in confined or sensitive environments such as MRI rooms. With clear visual alerts and the ability to measure gases like oxygen, nitrogen, and other hazardous compounds, the D-ReX provides peace of mind in environments where gas leaks could endanger lives or critical equipment.

Key Features

  • Tube length up to 30 m / 100 ft.
  • Easy to replace mechanical component of the internal pump
  • Bluetooth® connectivity
  • 16x external relays (optional: GMA200-RT/D)
  • Line Integrity Monitoring
  • Sensors for more than 30 gases
  • Hot-swappable smart sensor cartridge
  • High-resolution, full-color 2.4” TFT display
  • Plain text information for ease of use
  • Tool-free maintenance
  • Power-over-Ethernet (PoE) communication
  • Password-protected menu
  • Data logger to review sensor and alarm history
  • Bright status and alarm LEDs
  • CE marked and UL certified

Advanced Connectivity

The D-ReX provides multiple communication interfaces for signal transmission:

  • Analog: 4-20 mA output
  • Digital: RS-485 (Modbus/RTU)
  • Ethernet: 10/100 Mbit (Modbus/TCP)
  • Bluetooth® for wireless connectivity
  • Optional LonWorks® support
  • Internal programmable relays (up to 5 relays, upgradeable to 16 with the GMA200-RT/D module)

Applications

The D-ReX is ideal for use in various industries and environments, including:

  • MRI Labs
  • Process tools
  • Vacuum pumps
  • Scrubbers
  • Gas cabinets
  • Ambient breathing zones
  • Storage areas
  • Cleanroom environments
  • Sub fab systems

Technical Specifications

  • Gases: O2, CO, Cl2, H2, HCN, HF, CO2, N2O, LEL (Other gases available upon request)
  • Detection Principle: Sensor-dependent (EC = electrochemical, CC = catalytic combustion, IR = infrared)
  • Sampling Method: Extraction with pump
  • Display: 2.4” full-color TFT, 320x240 pixels
  • Communication: Analog 4–20 mA, Digital RS-485 (Modbus/RTU), Ethernet (Modbus/TCP), Bluetooth
  • Relays: 3 internal, programmable (upgradable to 16 relays)
  • Operating Temperature: -10 to +40 °C (14 to 104 °F)
  • Operating Humidity: 5 to 90% RH
  • Operating Pressure: 70 to 130 kPa
  • Power Supply: 110 VAC, 2 AMP
  • Housing: Polycarbonate, UV resistant, Nema 4X / IP 66
  • Weight: 8.25 lbs
  • Dimensions: 10" x 12" x 4"
  • Certifications: CE and UL certified

Contact Information

  • GfG Instrumentation, Inc. (USA)
  • 1194 Oak Valley Drive, Suite 20, Ann Arbor, MI 48108 USA
  • Phone: (734) 769-0573
  • Toll-Free (USA/Canada): (800) 959-0329
  • Website: www.gfgsafety.com/us-en
  • Email: info@goodforgas.com

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