Thermal mass flow meters

Oct. 24, 2023
Sierra Instruments introduces its new TM100 and TM500 high-performance thermal mass flow meters.
Courtesy of Sierra Instruments
Tm100 Tm500 Press Photo

Sierra Global Headquarters, Monterey, CA / October 11, 2023 (Sierra Instruments release)  Sierra Instruments, celebrating its 50th year in business, introduces its new TM100 and TM500 high-performance thermal mass flow meters. Both meters were designed and built to provide a broader range of power and value for industrial applications. They feature precision gas flow measurement, field flexibility, and delivery as fast as one week.

“We’re committed to being Measurably Different,” says Greg Smith, Product Line Manager. “50 years marks the beginning of a new era in flow measurement innovation for Sierra. The TM100 and TM500 will play a powerful role in reaching new customers, many of whom are already aware of Sierra’s pioneering meters, including our flagship QuadraTherm 640i, the world’s most accurate thermal mass flow meter.”

Both meters utilize DigiSense™, Sierra’s state-of-the-art sensor technology. Unlike other thermal flow sensors, it interfaces directly with its microprocessor for greater control, precision, and programmability. DigiSense accurately responds to changes in process variables (gas flow rate, pressure, and temperature) to determine mass flow rate, totalized flow, and temperature. DigiSense’s correlation algorithms allow the meter to be calibrated on a single gas in the factory while enabling the user to select other gases in the Gas-Mix menu.

Sierra’s thermal technology delivers direct measurement of gas mass flow. Unlike differential pressure (dP) meters that measure volumetric flow, it’s simpler to make and maintain, and no temperature or pressure corrections are required.

TM500 applications

Sierra designed the TM500 for the most demanding industrial processes in facilities management, chemical plants, gas refineries, and petrochemical production. Sierra flow measurement instruments are built to last and meet application, budget, and delivery needs.

TM500 Key Features

  • Accuracy 

+/- 1.0% of reading plus +/- 0.2% of full-scale – Air, Nitrogen 

+/- 1.5% of reading plus +/- 0.5% of full-scale – All other gases

  • Repeatability +/- 0.2% of full scale                                                                                                                                                                                    
  • Inline, Insertion, and remote versions
  • Velocity range: 0 to 45,000 sfpm 
  • AC or DC power 
  • Optional Gas-Mix feature to easily change gas selection or create gas mixes in the field — no recal required
  • Modbus RTU, HART, USB
  • Wide measurement range: up to 1000:1 turndown; 100:1 typical
  • Sensor (calibration) validation with TM-CAL
  • Delivery as fast as one week 

TM100 applications

The TM100 delivers amazing value to end user’s burner and combustion applications, natural gas and pure gas monitoring, and compressed gas and packing leaks. Sierra's TM100 is built to last and meet application, budget, and delivery needs.

TM100 Key Features

  • Accuracy 

o    +/- 1.0% of reading plus +/- 0.2% of full-scale – Air, Nitrogen 

o    +/- 1.5% of reading plus +/- 0.5% of full-scale – All other gases

  • Repeatability +/- 0.2% of full scale
  • Inline and Insertion versions
  • Velocity range: 0 to 25,000 sfpm 
  • 12 to 24 volt DC power 
  • Optional Gas-Mix feature to easily change the gas selection or create gas mixes in the field — no recal required
  • HART with pulse output or Modbus RTU (RS485), BACnet MS/TP (RS485) 
  • Wide measurement range: up to 1000:1 turndown; 100:1 typical
  • Sensor (Calibration) validation with TM-CAL
  • Delivery as fast as one week 

Learn more about Sierra’s new TM100 and TM500 industrial thermal mass flow meters today, click here for TM100 / TM500.

Sponsored Recommendations

Learn About: Micro Motion™ 4700 Config I/O Coriolis Transmitter

An Advanced Transmitter that Expands Connectivity

Micro Motion 4700 Coriolis Configurable Inputs and Outputs Transmitter

The Micro Motion 4700 Coriolis Transmitter offers a compact C1D1 (Zone 1) housing. Bluetooth and Smart Meter Verification are available.

Keys to Improving Safety in Chemical Processes

Many facilities handle dangerous processes and products on a daily basis. Keeping everything under control demands well-trained people working with the best equipment.

Micro Motion™ G-Series Coriolis Flow and Density Meter

Micro Motion G-Series: market-leading compact design featuring advanced process diagnostic capability.

Request More Information

By clicking above, I acknowledge and agree to Endeavor Business Media’s Terms of Service and to Endeavor Business Media's use of my contact information to communicate with me about offerings by Endeavor, its brands, affiliates and/or third-party partners, consistent with Endeavor's Privacy Policy. In addition, I understand that my personal information will be shared with any sponsor(s) of the resource, so they can contact me directly about their products or services. Please refer to the privacy policies of such sponsor(s) for more details on how your information will be used by them. You may unsubscribe at any time.