TX 401M Point Gas Detector

ATEX II 2GD - EEx d IIC T6
3-wire 4-20mA + RS485 Modbus + 3 alarm relays + 18-bit microprocessor
Real non intrusive + one man local calibration and configuration 

TX401M key features

• Extremely robust IP66 flameproof aluminium dye casting enclosure with yellow chromatic RAL 1007 epoxy coating. Optional AISI 316L heavy and oxidation free stainless steel execution.
• 3-pieces removable AISI 316L sensor enclosure for easy sensor replacement, with wind/water/dust IP66 sensor protection and integrated calibration adapter.
• Ideal for harsh environment as chemical and petro-chemical industry, offshore oil and gas platforms, onshore oil and gas terminals, refineries, LNG/LPG storage and bottling plants, Bio-ethanol plants, solvent and painting industry, Industrial hygiene & safety monitoring, Soil contamination and remediation, Landfill, Biogas and Biomass applications, Hazmat sites and spills, waste water, paper and pulp, ...
• Diffusion mode detection principle, no moving parts (pump), higher reliability, lower maintenance costs
• No sensor failure risk by condensation (water droplets formation) due to air compression/dilatation effects of pump membrane operation
• All-in-one detector: 5 digit display, 4 status LED, 4-20mA output, RS485 half/full duplex Modbus, 3 freely programmable alarm relays, measure of ambient T? with automatic compensation (option), non-intrusive one man local calibration, continuous monitoring of detector failure en sensor operation en life time.
• Extended choice of gas sensors :

- Catalytic combustion (CC) for %LEL HC, NH3 and H2
- Electrochemical (EC) for ppm toxic gases and %Oxygen
- Infrared (NDIR) for %LEL and %HC, ppm and %CO2
- Zirconium Oxide (ZrO2) for %Oxygen (heated sensor, up to 100% RH condensing)
- Photo-ionisation (PID) for ppm Volatile Organic Compounds (VOC)
- Solid State (SS) for ppm H2S for petrochemical applications

• Programmable response factors to reference gas for CC and PID sensors.
• Included accessories:

- wall mounting bracket,
- ATEX brass cable gland,
- magnet interface,
- wind/water/dust sensor protection with integrated calibration adapter.