Gas Thermal Insertion Meter and Mass Flow Meter
What Are the Benefits of a Thermal Mass Flow Meter?
- Application Flexibility: A thermal mass meter is suitable for a wide range of applications, whether you’re looking for specific gas measurements or need a thermal air flow meter.
- Direct Digital Gas Mass Flow Measurement: Sierra’s thermal flow meters measure mass flow, allowing you to avoid the pressure and temperature compensations needed with volumetric flow measurements.
- Wide Turndown Ratio: Sierra’s thermal mass flow meters feature turndown of up to 1000:1, allowing you to measure both very low and very high flows with a single instrument.
- Very Low Pressure Drop: Thermal mass flow meters demonstrate negligible pressure drop, making them a leading choice for a wide range of pipe and duct sizes.
- No Moving Parts: Thermal flow meters are easier and less costly to maintain than flow meters with moving parts and can easily be installed via hot tap.
Sierra’s QuadraTherm® 780i – is the most accurate thermal flow meter in the world. It measures gas mass flow with excellent accuracy and long-term stability.
The patented mass velocity sensor measures mass flow directly of inert gases, flammable gases and corrosive gases. It is inherently superior to methods which measure volume and correct for temperature and pressure.
The meter has built-in calibrations for air, argon, carbon dioxide, chlorine, digester gas, helium, hydrogen, methane, nitrogen, oxygen and propane. It can be calibrated for any other gas or mixture at Sierra’s in house, independently certified flow laboratory.
The meter has a built-in facility to perform field validation of the flow calibration. The QuadraTherm has outputs for mass flow, temperature and pressure.
QuadraTherm® 780i
- Achieve the highest accuracy +/- 0.5% of reading
- Eliminate drift with Dry Sense sensor
- Reduce straight-run requirements with built-in flow conditioning
- Needs only 1-diameter up and zero downstream diameters
- Validate in the field for easy in-situ calibration
- Backed by lifetime sensor warranty
Gas Mass Flow Meter / Controller
Sierra’s Mass-Trak meters measure and controls the flow of any clean gas, including toxic or corrosive gases, in any range from 0 – 4 standard cubic centimetres per minute to 0 – 1,000 standard litres per minute. The all-digital Smart-Trak Sierra is pre-programmed for ten commonly used gases.
Simply select air, argon, carbon monoxide, methane, helium, hydrogen, oxygen, nitrogen or nitrous oxide. The stainless steel construction is suitable for any clean gas and its small footprint facilitates drop-in replacement of any mass flow controller. The Sierra Smart-Trak is a very reliable mass flow meter/controller.
- Direct mass flow with thermal technology +/- 0.5% full scale accuracy
- True multi-gas digital mass flow controller
- View and change every aspect of the instrument
- Small footprint at 50 slpm ideal for OEMs
- 10-point NIST calibration on primary standards
