ABB TH202-EX Temperature Emitter

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Product Overview

The ABB TH202-EX is an explosion-proof temperature transmitter designed for hazardous industrial areas. It converts signals from temperature sensors (thermocouples or RTDs) into standard analog signals (4–20 mA) for direct connection to DCS, PLC, or control systems, enabling remote monitoring and temperature control. TH202-EX is certified according to international explosion-proof standards, making it suitable for oil & gas, chemical, power, and other high-risk industrial environments.

Technical Specifications

• Model: TH202-EX

• Measurement Type: Temperature

• Compatible Sensors: Thermocouple (TC), Resistance Temperature Detector (RTD)

• Input Type: Standard industrial temperature sensors

• Output Signal: 4–20 mA DC (two-wire)

• Accuracy: ±0.2% FS

• Operating Temperature: -40°C to +85°C

• Protection Class: IP66 / IP67

• Explosion Protection: Ex ia IIC T4 / ATEX, IECEx (model dependent)

• Supply Voltage: 12–30 V DC

• Mounting: Threaded or flange, suitable for pipelines or equipment

• Environmental Adaptability: Corrosion resistant, vibration resistant, EMI resistant

• Signal Isolation: Input/output/power isolation for enhanced safety

Features & Advantages

• Explosion-proof design suitable for hazardous zones (Zone 0, 1, 2)

• High accuracy ensures reliable process control

• Wide temperature range for versatile applications

• Multiple mounting options for pipeline or equipment integration

• Strong anti-interference capability for industrial environments

• Standardized output compatible with DCS and PLC

• High durability and stability, low maintenance cost

Application Areas

• Oil, gas, and petrochemical processing

• Power plants and refineries temperature monitoring

• Chemical and pharmaceutical process control

• Remote temperature monitoring and alarm systems

• Hazardous industrial areas such as explosion-proof warehouses or tanks

• Food processing and packaging temperature control

Precautions

• Ensure installation complies with explosion-proof certification and hazardous area requirements.

• Confirm sensor type matches transmitter configuration.

• Verify supply voltage is within rated range.

• Avoid highly corrosive or mechanical shock environments unless protective housing is used.

• Regularly calibrate output to maintain measurement accuracy.

• Follow local safety standards and ATEX/IECEx guidelines for wiring and grounding.

The structure and details of the product：

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