Thermatel TA2 Mass flow transmitter for gases

Mass flow meters measure flow in units of mass flow (kg/h) rather than volume. Thermatel TA2 uses thermal dispersion technology. This technology is not affected by pressure changes and uses temperature as a measuring value. Thermal dispersion is still a relatively unknown technology but is gaining interest fast as users discover its unique benefits:

• Low flow capability as low as 0,13 Nm/s.
• Wide flow range with turn down ratio 100:1 or higher.
• Negligible pressure drop.
• Direct mass flow measurement.Mounting: direct insertion or with flow body.
• Ready for use: pre-calibrated from factory

Integral or Remote
All electronics are housed in a compact, explosion-proof enclosure mounted on the probe or at a remote location.

Display
Optional two-line, 16 digits/line, alphanumeric display module with fourbutton keypad for easy configuration.

Rotatable Enclosure
Displays flow rate, temperature, totalized flow and diagnostic messages.

TA2’s Electronics Features

• Automatic temperature compensation.
• Automatic pipe blockage adjustment.
• Automatically corrects mass flow measurement for changes in gas properties over the entire temperature range of the instrument.
• Diagnostic monitoring of electronics, probe sensors, heater circuit and wiring.
• Software totalizer displays (on an eight-digit display) the most significant numbers in the user’s choice of engineering units. The totalizer can be reset via HART^®.
• Easy, intuitive software programming.
• Flow profile compensation.
• Active or passive 4-20 mA output.
• Optional HART/AMS communications allows remote configuration of the TA2.

Optional TA2 Modules
A probe simulation module can verify the operation of the electronics against a known standard. A portable display module can simultaneously configure and diagnose multiple Thermatel transmitters.

Process Connections
Selection of process connections includes threads, welded flange construction, and use with a compression fitting.

Probe
All-welded stainless steel; Hastelloy C-276 optional. Process temperatures to +200 °C (+400 °F); pressure rating to 170 bar (1,000 psi); ratings are dependent upon process connections.

Convenience
Probe is field-replacable; optional hot tap Retractable Probe Assembly (RPA) allows for probe installation or removal without a process shutdown.

Protection
Sensor is protected within a durable enclosure to prevent damage if the probe is inserted too far into a pipe.