The DET-TRONICS 009480-004 (Model GTXSM26W5) is a high-performance FlexVu Universal Display Transmitter designed for the continuous monitoring of hazardous gases. This explosion-proof (EXP) device acts as a centralized interface for various Det-Tronics gas sensors, providing real-time concentration readings, localized alarm status, and comprehensive diagnostic data. Engineered with an M25 thread configuration, it is built to survive the most demanding industrial environments where safety and reliability are non-negotiable.

 

Product Parameters & Datasheet

The technical specifications for the DET-TRONICS 009480-004 are detailed in the datasheet summary below:

• Part Number: 009480-004
• Model: GTXSM26W5
• Display Type: High-visibility backlit LCD with graphical interface
• Input Power: 24 Vdc nominal (18 to 30 Vdc range)
• Output Signal: 4–20 mA with HART communication protocol
• Relay Configuration: Three integrated alarm/fault relays (5 Amps at 30 Vdc)
• Enclosure Material: Copper-free Aluminum (options for Stainless Steel available)
• Conduit Entry: M25 metric threads
• Certification: Explosion-proof (EXP), Class I, Div 1, Groups B, C, D; ATEX/IECEx Zone 1
• Ingress Protection: NEMA 4X / IP66
• Operating Temperature: –40°C to +75°C

 

Product Technical Description

The GTXSM26W5 transmitter utilizes advanced digital signal processing to interface with both electrochemical and infrared gas sensors. It features a non-intrusive calibration interface, allowing operators to perform routine maintenance and span adjustments using a magnetic tool without opening the explosion-proof housing. The “W5” designation indicates a specific internal configuration optimized for HART 7 communication, providing rich asset management data and remote diagnostics to the central DCS or PLC. Its internal data logger records the last 128 events, including calibrations and alarm triggers, ensuring a clear audit trail for safety compliance.

 

Application Fields

This transmitter is a critical component in high-hazard industrial sectors, including:

• Oil & Gas Refineries: Monitoring for H2S and combustible gas leaks in processing areas.
• Offshore Platforms: Providing ruggedized gas detection in salt-spray and high-vibration environments.
• Chemical Plants: Interfacing with specialized sensors for toxic gas monitoring in storage tank farms.
• Wastewater Treatment: Detecting methane and oxygen depletion in confined spaces.
• Power Generation: Managing hydrogen seal gas monitoring for large turbines.

 

Country of Origin

The DET-TRONICS 009480-004 is manufactured in the United States of America (USA), adhering to global NFPA and FM Global safety standards for flame and gas detection.

Product Usage Instructions

1. Mechanical Installation: Secure the transmitter to a rigid wall or pipe mount using the integrated mounting holes. Ensure the display is oriented for easy viewing by the operator.
2. Conduit Sealing: Use M25 explosion-proof conduits and approved sealing fittings within 18 inches (45 cm) of the enclosure to maintain the hazardous area rating.
3. Wiring: Connect the 24 Vdc power and 4–20 mA loop to the internal terminal blocks. For HART communication, ensure the loop resistance is between 250 and 600 ohms.
4. Sensor Integration: Screw the compatible Det-Tronics gas sensor into the bottom M25 entry. Connect the sensor wiring harness to the designated internal plug on the GTXSM26W5 board.
5. Calibration: Use the magnetic wand to navigate the “Calibration” menu on the LCD. Follow the on-screen prompts to apply zero and span gas. The transmitter will automatically adjust the output and log the successful calibration date.