TB420 4-20mA Gas Sensor Module with 45x35x11.9mm Dimensions for Industrial Gas Detection
The TB420 is an intelligent two-wire 4-20mA gas sensor module manufactured by EC Sense in Germany. Utilizing high-reliability solid polymer electrochemical gas detection technology with intelligent algorithm design, this module complies with industry standards for comprehensive gas safety monitoring applications.
| Parameter | Specification |
|---|---|
| Detection Principle | Solid polymer electrochemical |
| Output Signal Interface | Two-wire 4-20mA (convertible to 40-200mV via external resistor) |
| Operating Voltage | 9-24V DC |
| Current Consumption | 3-22mA @ 24V DC |
| Power Consumption | <0.6W |
| Maximum Loop Resistance | <500Ω @ 24V DC |
| Protection | Reverse polarity protection |
| Operating Temperature | -40°C to +55°C |
| Operating Humidity | 15-95% RH (non-condensing) |
| Pressure Range | Atmospheric pressure ±10% |
| Storage Temperature | 0°C to 20°C |
| Dimensions (with sensor) | 45mm × 35mm × 11.9mm |
| Dimensions (without sensor) | 45mm × 35mm × 11.9mm |
| Weight (with sensor) | 7.8g |
| Weight (without sensor) | 7.1g |
| Packaging | ESD BAG (120×150mm) |
Gas-calibrated at factory with calibration data stored in Flash memory. Supports direct use, secondary calibration via EC Sense software, or direct 4-20mA signal calibration.
Outputs performance indicators, lifespan data, and fault signals. Provides real-time health status monitoring with or without target gas presence.
Fast gas response, stable zero point without drift, strong EMI resistance, long-life sensor with anti-poisoning capability.
PCB coated with dust-proof and corrosion-resistant layers for harsh environments.
Reduces development time and costs for gas monitoring instruments by eliminating complex calibration processes.
Standard 4-20mA industrial signal enables quick integration with monitoring systems, DCS, PLC, and display meters.
Suitable for indoor and outdoor gas detection applications including:
- Industrial gas safety monitoring systems
- Air quality monitoring networks
- Industrial process gas monitoring
- Semiconductor gas purification monitoring
Provides real-time dynamic data for comprehensive ambient gas detection and monitoring solutions.
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