GE Panametrics XMTC-62-21 Thermal Conductivity Gas Transmitter

Product Description

Model: GE Panametrics XMTC-62-21 (now part of Baker Hughes), XMTC series online thermal conductivity gas transmitter. This microprocessor-based analyzer uses glass-coated thermistor sensors to continuously measure gas concentration in binary or pseudo-binary gas mixtures by thermal conductivity principle. It supports single / dual gas push-button calibration and real-time fault detection. Enclosure rated IP66 / NEMA 4X with full hazardous area certifications. Standard isolated 4–20mA analog output, optional RS485 Modbus digital communication. No moving parts for high long-term stability, designed for continuous process gas analysis.

Specifications

• Model: XMTC-62-21
• Brand: Panametrics (Former GE, Baker Hughes)
• Series: XMTC Thermal Conductivity Gas Transmitter
• Measuring Principle: Thermal conductivity, glass-coated thermistors
• Measurable Gas: Binary gas mixtures (H₂, CO₂, CH₄, He and more)
• Accuracy: ±2% of span
• Linearity: ±1% of span
• Repeatability: ±0.5% of span
• Zero stability: ±0.5% of span per week
• Span stability: ±0.5% of span per week
• Response Time: 20s for 90% step change
• Analog Output: Isolated 4~20mA
• Digital Communication: RS485 Modbus (optional)
• Protection Class: IP66 / NEMA 4X
• Hazardous Area Certifications: ATEX, IECEx, FM, CSA for Zone1 / Div.1
• Ambient Operating Temperature: -20℃ ~ +50℃
• Process Connection: 1/4″ NPTF
• Mounting: Field wall mounting
• Key Features: Real-time error detection, single/dual gas push-button calibration, no moving parts

Application

Continuous online analysis for binary gas mixtures in petrochemical, natural gas, biogas/landfill gas, power generation, metallurgy and food industries. Typical measurements: CO₂ in methane, hydrogen in nitrogen, helium or argon mixture monitoring. Widely applied in biogas upgrading, gas blending, hydrogen monitoring for hydrogen-cooled generators and combustion process control. It connects to DCS systems to track gas composition in real time, optimizing process efficiency and operational safety.

Same Series Models (XMTC Thermal Conductivity Transmitter)

1. XMTC-61-21
2. XMTC-62-11
3. XMTC-63-21
4. XMTCpro
5. XMTC-64-21