TSI is an international benchmark in the development of high-performance instrumentation for gas mass flow measurement. The 4000 Series flowmeters integrate flow, pressure and temperature measurement into a single instrument, offering precision, rapid response and reliability for industrial, medical and research applications.
Thanks to exclusive platinum film thermal sensor technology and advanced calibration processes, TSI meters ensure high performance over a wide measuring range, maintaining accuracy and stability even under the most demanding operating conditions.
Mega System Srl supports its customers in choosing the best solutions for measuring gas mass flow rate, providing technical advice and application support in line with specific measurement needs.
Unlike traditional flowmeters specified as a percentage of full scale, TSI meters are calibrated as a percentage of the actual reading, meaning that accuracy is maintained even at low flow rates, ensuring reliable measurements throughout the operating range.
A single TSI tool can therefore replace multiple traditional devices, simplifying testing and control tasks and reducing equipment management costs by offering:
- Response time up to 4 milliseconds
- Accuracy up to ±2% of reading
- Turndown ratio greater than 1000:1
- Extremely small load loss
- Automatic temperature and pressure compensation
- Simultaneous measurement of flow rate, volume, pressure and temperature
- NIST traceable calibration certificate included
The integrated RS232 interface allows for complete configuration of the tool and the acquisition of a lot of data in digital format, including:
- Configuring analog outputs
- Selection of calibration gas
- Setting of units of measurement
- Measurement and calculation of volumes
- Sampling rate management
- Acquisition of flow rate, pressure and temperature
Do you want to learn more about the performance and applications of TSI meters?
Take a look at the two options and reach out for a customized consultation regarding TSI mass flow meters.

