Sierra

Sierra Instruments manufacturers high performance mass flow meters and mass flow controllers for nearly any gas, liquid, or steam application. Thermal Mass, Transit-Time Ultrasonic, Vortex Shedding and Multivariable flow meters are available in both standard and customized versions for applications in laboratory, industrial, and hazardous environments. Sierra's flow measurement technologies precisely measure or control very low flows down to less than 1 sccm full scale as well as extremely high flows of gas, liquid, and steam.

 Sierra On-Line Purchasing
  • Sierra Capillary Thermal Mass Flowmeters
  • Sierra Industrial Mass Flowmeters
  • Sierra Instrumentation
  • Sierra Ultrasonic Flowmeters
  • Sierra Vortex Flowmeters
  • Sierra Calibrators
  • Sierra Flow / Level Switches
 
Sierra Thermal Mass Flow Meters and Controllers
Click Photo for Spec Sheet Description Accuracy, Flow range Gas & Max. Pressures Input Power Output Signals Features
50 Series Smart-Trak®
50 Series Smart-Trak®

Digital cost-efficient gas mass flow meters and controllers; multi-gas capability. 7 ranges off-the-shelf. Meter in Aluminium. Controller in 316SS or Aluminium. Designed for OEM applications.

  • Accuracy: ±1.5% of full scale
  • Flow Range: 0-10 sccm to 0-200 slpm (or nlpm)
  • Repeatability: ±0.25% of full scale

  • Gas: All clean gases including corrosives and reactives.
  • Max. Pressure: 145 psig (10 barg)
  • Dial-A-Gas: 10 pre-programmed gases, user selectable
  • 300 ms response time
  • 0 - 50 °C

  • 15 or 24 Vdc,
  • Controller 24 Vdc, 315 mA,
  • RS-485 option adds 130 mA

  • RS-232 (no analogue out if selected),
  • Options: 0-5 Vdc, 4-20 mA, RS-485

  • Digital display option.
  • Dial-A-Gas ® technology.
  • Off-the-shelf 0-0.02, 0-0.2, 0-1, 0-5, 0-10, 0-20, 0-50 slpm
  • Compact footprint
100 Series Smart-Trak®
100 Series Smart-Trak® thermal mass flow meter mass flow controller

Digital high performance gas mass flow meters and controllers; multi-gas capability; stainless steel construction. Now Smart Trak 2, renamed Smart Trak and with high pressure capability option.

  • Accuracy: ±1% of full scale
  • ±0.7% of reading plus 0.3% of full scale (optional)
  • Flow Range: 0-4 sccm to 0-1000 slpm

  • Gas: All clean gases including corrosives and reactives.
  • Max. Pressure: 1500 psig (100 barg)
  • Dial-A-Gas: 10 pre-programmed gases, user selectable

24 Vdc, 12 Vdc (optional)

RS-232, 0-5 Vdc, 0-10 Vdc 1-5 Vdc, 4-20 mA

Pilot module for function control. Dial-A-Gas ® technology. Fast response control valve. Digital.
101 Micro-Trak™
101 Micro-Trak™

Specifically designed for most gases down to 0.1 sccm

  • Accuracy: ±1.0% of full scale
  • Flow Range: 0-4 sccm

  • Gas: All clean gases including corrosives and reactives.
  • Max. Pressure: 500 psig (34 barg)

24 Vdc

0-5 Vdc, 4-20 mA and 1-5 Vdc, 0-10 Vdc

Unique Pilot Module allows control and display of the following functions: Gas, Setpoint, Units, Output, valve and Full Scale
820 Top-Trak©
820 Top-Trak® thermal mass flowmeter

Low-cost gas mass flow meter with tiltable digital readout; nylon or aluminium construction.

  • Accuracy: ± 1.5% of full scale
  • Flow Range: Model 822/824: 0-10 sccm to 0-50 slpm
  • Model 826/827: 0-75 slpm to 0-175 slpm

  • Gas: Air and non corrosive, non reactive gases
  • Max. Pressure 150 psig (10 barg)

12 to 18 Vdc, 24 Vdc (optional)

0-5 Vdc, 4-20 mA

Low cost nylon body. Blind meters (824 vs. 822) and controllers (810) available. Stainless steel version 820S.
820 S Top-Trak©
820 S Top-Trak©

Low-cost gas mass flow meter with tiltable digital readout; stainless steel construction.

  • Accuracy: ±1.5% of full scale [±1% of full scale (optional)]
  • Flow Range: 0-10 sccm to 0-500 slpm

  • Gas: All clean gases including corrosives and reactives.
  • Max. Pressure: 500 psig (34 barg)

12 to 18 Vdc, 24 Vdc (optional)

0-5 Vdc, 4-20 mA

Low cost stainless steel body. Blind meters and controllers available. Nylon and aluminium flow meters and controllers also available,
810 Mass-Trak®
810 Mass-Trak®

Low-cost gas mass flow controller with digital readout; nylon construction.

  • Accuracy: ±1.5% of full scale
  • Flow Range: 0-10 sccm to 0-50 slpm

  • Gas: All clean gases including corrosives and reactives.
  • Max. Pressure: 150 psig (10 barg)

24 Vdc

0-5 Vdc, 4-20 mA simultaneous

Low cost nylon body. Blind controllers available. User-selectable local or remote set point
830-840 Side-Trak©
830/840 Side-Trak®

High performance gas mass flow meters and controllers; stainless steel construction.

  • Accuracy: ±1% of full scale
  • Flow Range: 0-10 sccm to 5600 slpm

  • Gas: All clean gases including corrosives and reactives.
  • Max. Pressure: 500 psig (34 barg)

± 15 Vdc

0-5 Vdc, 4-20 mA

High accuracy. High capacity / flow rate. Blind meters and controllers available.
180 Series Max-Trak®
180 Series Max-Trak®

Digital high performance NEMA 6/IP67 gas mass flow meters and controllers with stainless steel process fittings; multi-gas capability; stainless steel construction.

  • Accuracy: ±1% of full scale
  • Flow Range: 0-10 slpm to 0-1000 slpm

  • Gas: All clean gases including corrosives, toxics and reactives.
  • Max. Pressure: 500 psig (34 barg)
  • Dial-A-Gas: 10 pre-programmed gases, user selectable

24 Vdc

RS-232, 0-5 Vdc, 0-10 Vdc 1-5 Vdc, 4-20 mA

  • Pilot module for function control.
  • Dial-A-Gas ® technology.
  • Fast response control valve.
  • Digital.
180 Series Max-Trak® Flanged
180 Series Max-Trak® Flanged

Digital high performance NEMA 6/IP67 gas mass flow meters and controllers with 316 stainless steel flanges; multi-gas capability; stainless steel construction.

  • Accuracy: ±1% of full scale
  • Flow Range: 0-10 slpm to 0-1000 slpm

  • Gas: All clean gases including corrosives, toxics and reactives.
  • Max. Pressure: 500 psig (34 barg)
  • Dial-A-Gas: 10 pre-programmed gases, user selectable

24 Vdc

RS-232, 0-5 Vdc, 0-10 Vdc 1-5 Vdc, 4-20 mA

  • Pilot module for function control.
  • Dial-A-Gas ® technology.
  • Fast response control valve.
  • Digital.