Thermal Flow Meters - Kobold Instruments
Thermal mass flow meters measure gas flow directly in mass units, with no separate pressure or temperature compensation. They're ideal for compressed air, natural gas, nitrogen and process gases.
Thermal Meter Features
- Direct mass flow – SCFM and Nm³/h readings
- Wide turndown – accurate at low flows for leak detection
- Insertion and inline models – suit pipe sizes
- No moving parts – low maintenance
- Totalizing and outputs – 4-20 mA, pulse and digital
Choosing a Thermal Meter
Provide the gas type, flow range, pipe size, pressure and temperature. Follow straight-run requirements for accuracy. Thermal meters are a great fit for compressed air audits and sub-metering.
Centro supplies thermal flow meters for gas and compressed air measurement.
Related categories: Flow Meters | Visual Flow Meters | Roto Meters | Gas Flow Meters | Turbine Flow Meters
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The sophisticated KOBOLD KAL-A Thermal Flow Transmitter employs advanced calorimetric technology with microprocessor-based drift stabilization to deliver reliable monitoring of water-based liquids with velocities from 0.2 to 6.6 ft/sec while providing consistent 4-20 mA output signals regardless of temperature fluctuations. Featuring an innovative single RTD element design that both heats the probe tip and measures temperature simultaneously, this intelligent instrument creates a continuous, protrusion-free sensor surface that prevents contamination buildup, enhances sensing stability, and significantly reduces system downtime associated with probe cleaning. Available in industrial (304 SS or 316-Ti SS with NPT connections) and sanitary models (316L SS with 3-A compliant Tri-Clamp® fittings), the KAL-A withstands extreme operating conditions up to 1450 PSIG pressure and CIP cleaning temperatures to 280°F while maintaining exceptional ±10% full scale linearity and ±1% repeatability. The user-friendly interface includes an 8-LED trend display for visual flow indication alongside adjustable zero (0-75% of range) and span (25-100% of range) settings, with optional PNP/NPN open collector switching outputs rated for 400mA that provide programmable alarm functionality. Operating with minimal pressure drop and complete insensitivity to dirt particles, this maintenance-free instrument delivers consistent performance across pipe sizes from 1/2" to 20" diameter without moving parts, making it ideal for critical applications in food processing, pharmaceutical manufacturing, water treatment, and other industries requiring sanitary or industrial flow monitoring.
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The sophisticated KOBOLD KAL-A Thermal Flow Transmitter employs advanced calorimetric technology with microprocessor-based drift stabilization to deliver reliable monitoring of water-based liquids with velocities from 0.2 to 6.6 ft/sec while providing consistent 4-20 mA output signals regardless of temperature fluctuations. Featuring an innovative single RTD element design that both heats the probe tip and measures temperature simultaneously, this intelligent instrument creates a continuous, protrusion-free sensor surface that prevents contamination buildup, enhances sensing stability, and significantly reduces system downtime associated with probe cleaning. Available in industrial (304 SS or 316-Ti SS with NPT connections) and sanitary models (316L SS with 3-A compliant Tri-Clamp® fittings), the KAL-A withstands extreme operating conditions up to 1450 PSIG pressure and CIP cleaning temperatures to 280°F while maintaining exceptional ±10% full scale linearity and ±1% repeatability. The user-friendly interface includes an 8-LED trend display for visual flow indication alongside adjustable zero (0-75% of range) and span (25-100% of range) settings, with optional PNP/NPN open collector switching outputs rated for 400mA that provide programmable alarm functionality. Operating with minimal pressure drop and complete insensitivity to dirt particles, this maintenance-free instrument delivers consistent performance across pipe sizes from 1/2" to 20" diameter without moving parts, making it ideal for critical applications in food processing, pharmaceutical manufacturing, water treatment, and other industries requiring sanitary or industrial flow monitoring.
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