The BT-3020-G Inline Thermal Mass Flow Meter uses a dual platinum wire wound RTD sensor housed in a SS316 sheath to deliver high-accuracy direct mass flow measurement of industrial gases. The calorimetric constant temperature anemometer principle ensures stable and repeatable performance without pressure or temperature compensation.

Available with integral or remote transmitter, the meter features a graphical LCD display showing flow, totalized flow, velocity (nm/s), and gas temperature. It supports 4–20 mA HART, RS485 Modbus, and pulse output for seamless system integration. Dual power input (24 VDC / 230 VAC) and a flame-proof enclosure make it suitable for hazardous industrial environments.

The inline flow tube with flanged connection ensures uniform gas flow, leak-free installation, and long-term reliability. It supports pipe sizes from ½” to 4” with ANSI, DIN, and PN flange ratings. An inbuilt diagnostic function continuously monitors sensor health and meter performance for dependable operation.

Designed for clean gases such as Air, Natural Gas, LPG, Biogas, Flue Gas, and Flare Gas, the BT-3020-G is ideal for energy, chemical, manufacturing, and utility applications.

Key Features

Graphical LCD display (Flow, Totalizer, Velocity, Temperature)

4–20 mA HART output

RS485 Modbus RTU communication

Dual chamber die-cast aluminum enclosure

SS316 construction with no moving parts

Dual power supply: 24 VDC / 230 VAC

Field programmable configuration

Optional IoT online monitoring

Explosion-proof and weather-proof certified

Benefits

Direct mass flow measurement

High accuracy and repeatability

Negligible pressure loss

Wide gas compatibility

High turndown ratio up to 100:1

Unaffected by pressure and temperature changes

Fast response time

Easy installation and low maintenance

Technical Specifications (Summary)

Measuring Principle: Calorimetric (CTA)

Sensor: Dual RTD platinum wire wound, SS316

Pipe Size: DN50 to DN100

Flow Range: 1–70 nm/s (standard), up to 100 nm/s (optional)

Accuracy: ±2% of reading + 0.5% FS

Operating Temperature: –20 to +150°C (up to +250°C optional)

Operating Pressure: 0–16 bar (up to 50 barg optional)

Enclosure: Flameproof Ex d IIB T6

Approval: PESO

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