Thermal flowmeter with bidirectional measurement and reverse flow detection
Endress+Hauser has successfully installed over 100,000 t-mass flowmeters worldwide. Whether compressed air, natural gas, inert gas or oxygen: anyone wishing to record gas flows with state-of-the-art measurement technology no longer has to make concessions. The sensor design and unique control functions of the Proline t-mass leave nothing to be desired in terms of optimum process control. Even when process conditions change significantly, gas flows can be measured with unrivalled accuracy.
Benefits
- Robust sensor design for long-term, low-maintenance operation - in-line version for pipes from DN 15 to 100 (½ to 4″) and insertion version for pipes and ducts from DN 80 to 1500 (3 to 60″)
- Global process control: outstanding control and warning functions for condensate, flow direction or reverse flow detection
- Gas Engine: 22 selectable gases and corresponding gas mixtures with up to 8 components
- High-level process control: excellent measurement accuracy (±1.0 %), repeatability (±0.25 %) and rangeability (up to 1000:1). For process temperatures up to 180°C (356°F) and pressures up to 40 bar (580 psi).
- Maximum safety: SIL-compliant device to IEC 61508
- High level of operating reliability: Heartbeat technology for diagnostics, monitoring and control of devices during the process.
In many industrial sectors, thermal flowmeters have long been used for pure gases and gas mixtures - e.g. in HVAC (heating, ventilation, air conditioning), for measuring flare and combustion gases, in installations with air, oxygen, nitrogen or argon, for monitoring natural gas consumption, or for carbon dioxide in the food and beverage industry. Proline t-mass F/I 300/500 opens up new possibilities for process control, quantity measurement, leak detection, cost allocation and energy management.
Gas Engine - for maximum process flexibility
The Proline t-mass 300/500 measuring system comes with the Gas Engine as standard. This software offers users exceptional advantages:
- Precise measurement of pure gases and gas mixtures under current operating conditions
- Calculation of additional process variables such as flow velocity, reference density, corrected volume flow and energy flow
- Dynamic correction for changes in pressure, temperature and gas composition
- Change programmed gases without recalibration
Robust and optimized for industry
t-mass F and I sensors are exceptionally robust, enabling them to withstand pipe vibration, solid particles in the gas, or process fluctuations such as temperature shocks. Thanks to its innovative patented design, t-mass is ideal for long-term, low-maintenance operation. All wetted parts are made of stainless steel and comply with NACE MR0175/MR0103. For gases forming a coating in the pipe, the sensor can be removed for cleaning operations, without impairing its performance.
Heartbeat technology - for maximum operating reliability
Heartbeat technology, another highlight. Integrated into all Proline measuring devices, this verification function enables permanent self-diagnosis with maximum diagnostic coverage (>95 %), as well as metrologically traceable verification during the process. All this reduces complexity and risk in the plant, and increases reliability and availability.
Transmitters for easy system integration
Various transmitters are available for t-mass F and I sensors: Proline 300 (compact version) or Proline 500 (remote version) with up to four inputs and outputs. They enable simultaneous measurement of mass flow and energy flow, flow velocity, gas temperature, density and corrected volume flow. Access to all measurement and diagnostic data is possible at any time, thanks to digital transmission via HART or Modbus RS485, as well as via Wi-Fi or freely combinable inputs and outputs.
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