Mass Flow Meter, Digital High Performance with Multiple Gas Capability - SmartTrak® C100

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Premium Digital Mass Flow Meter

SmartTrak® 100 is the next generation of our flagship Model 100. Building upon unprecedented performance, user-friendliness and flexibility of innovative features like Dial-A-Gas capability and the Pilot Module interface, SmartTrak 100 gives users the world’s most linear sensor, smoother valve performance, more robust electronics and even more control over a wide range of functions. The result is a series of mass flow meters and controllers that demonstrates premium flow instrumentation doesn’t have to be difficult to use.

SmartTrak 100 features Dial-A-Gas® technology for true digital performance in up to ten pre-programmed gases with the same unit (gas type list can be programmed on request). Another unique factor of the Model 100 is the pilot module which replaces expensive control/readout electronics and is available mounted to the face of the instrument or in a convenient hand-held version.

SmartTrak® C100 Digital High Performance with Multiple Gas Capability

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Sierra Instruments Warranty & Support

Limited Warranty - Product - Liability for Repair and Replacement Only

All Sierra products are warranted to be free from defects in material and workmanship and will be repaired or replaced at no charge to Buyer, provided return or rejection of product is made within a reasonable period but no longer than one (1) year for calibration and non-calibration defects, from date of delivery. To assure warranty service, customers must register their products online on Sierra’s website. Online registration of all of your Sierra products is required for our warranty process. Register now at http://www.sierrainstruments.com/register. 

This warranty does not cover any damage or discoloration caused by corrosion due to gases, liquids, or any other source, nor does it cover normal wear of any seals in its products and with gases other than air, or unless otherwise specified in the contract. Such returns are contingent on Sierra's examination and reasonable satisfaction that any defects are covered by this warranty and that the Buyer has not returned the equipment in a damaged condition, due to any negligence, tampering, misapplication or product modification on the part of the Buyer or his agents. Sierra shall not be liable for installation charges, for expenses of Buyer for repairs or replacement, for damages from delay or loss of use, or other indirect or consequential damages of any kind.

Sierra extends this warranty only to Sierra products properly used and properly installed for the particular application for which intended and quoted, and this warranty does not cover products which have been modified without Sierra's approval or which have been subjected to unusual physical or electrical stress, alteration, or tampering, or upon which the original identification marks have been removed or altered. Whenever the design of the equipment to be furnished or the system in which it is to be incorporated originates with the Buyer, Sierra's warranty is limited specifically to matters relating to furnishing Sierra equipment free of defects in materials and workmanship and Sierra assumes no responsibility for implied warranties of fitness for purpose or use. Any replacement or repair shall be to Sierra's factory, unless otherwise directed. No items shall be returned for warranty repair without prior written authorization from Sierra.

Note: Sierra’s InnovaSwitch™ Flow Level Switches come with a two (2) year warranty with the above stipulations. 

Lifetime Limited Warranty on Patented DrySense™ Sensor Technology

In addition to Sierra’s standard one (1) year manufacturing warranty on all instruments produced, Sierra also offers a lifetime warranty on all DrySense™ sensors standard with Sierra models 640i, 780i, 640S, 780S, and 670S instruments sold after January 1, 2010.  This warranty does not extend to the Model 620S, the BoilerTrak™, the HT (High Temperature) 640S/780S sensor or the 780S UHP (Ultra High Purity) sensors. To assure warranty service, customers must register their products online on Sierra’s website. Online registration of all of your Sierra products is required for our warranty process. Register now.

Download Sierra Products Warranty Statement

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2 Year Warranty Coverage for Flow Switches

Sierra offers a two (2) year warranty coverage for our entire line of InnovaSwitch™ Flow Level Switches beginning July 1, 2010.

Technical Support

Chat with us or call (502) 266-6640.

Technical Details

  • Accuracy of +/- 1% of full scale
  • Accuracy of +/- 0.5% of full scale
  • 316 stainless steel construction
  • Flow ranges from 0 to 10 sccm to 0-1000 slpm. (for flows less than 10 sccm reffer to MicroTrak Model 101)
  • Fast-response control valve
  • True digital performance with great flexibility
  • “Primary Standard” calibration& NIST traceability
  • Dial-A-Gas® Technology
  • 10 pre-programmed gases come standard
  • Substitute up to 9 gases of your own
  • Unique pilot module allows these control functions: Control functions also available from PC via RS-232
  • Traditional analog control also included
  • 4-20 mA
  • 0-5 Vdc
  • 0-10 Vdc
  • 1-5 Vdc
  • Source code for RS-232 communication provided
  • Small footprint makes drop-in replacement easy
  • Single-sided 24 Vdc power supply
  • CE approval
  • Multi-drop RS-485
  • Digital communications solutions include: Foundation Fieldbus, Modbus RTU, and Profibus DP.

Product Information

SmartTrak® 100 is the next generation of our flagship Model 100. Building upon unprecedented performance, user-friendliness and flexibility of innovative features like Dial-A-Gas capability and the Pilot Module interface, SmartTrak 100 gives users the world’s most linear sensor, smoother valve performance, more robust electronics and even more control over a wide range of functions. The result is a series of mass flow meters and controllers that demonstrates premium flow instrumentation doesn’t have to be difficult to use.

SmartTrak 100 is designed so that the physics are correct. Excellent performance results from a patented, inherently linear Laminar Flow Element (LFE) design, advanced platinum sensor technology, and Sierra’s proprietary frictionless-hovering control valve. SmartTrak 100 is available with an innovative and user-friendly Pilot Module, a front-mounted or hand-held control device that allows users to Dial-A-Gas®, change flow rate, modify engineering units or re-configure the instrument. With the Pilot Module, the user can set zero, span and full scale for each of 10 different gases independently to accommodate unexpected application or system design changes.

Sierra’s digital communications solutions offer engineers and systems integrators, full system integration and networking capability with Sierra's mass flow control systems. Digital communications solutions include: Foundation Fieldbus, Modbus RTU, and Profibus DP. For enhanced networking capability, including two digital relays, totalization, inputs, and display, add the Compod Control Module™ to easily program a wide veriety of common flow systems and process controls ranging from gas mixing and dilution to leak testing.

Control

We have advanced the science of our direct-acting control/shut-off valve by using proprietary Frictionless-Hovering Technology, allowing you to smoothly control gas mass flow over a wide range of temperature and pressure

Independence

Now, you can adjust calibration in the field for any of the 10 pre-programmed Dial-A-Gas gases independently. The user-friendly Pilot module (mounted or hand-held) lets you view and change a wide variety of critical control functions.

Flexibility

For easy systems integration and networking capability, Sierra’s digital communications solutions allow the SmartTrak 100 to become a truly intelligent mass flow controller and meter.Digital communications solutions include: Foundation Fieldbus, Modbus RTU, and Profibus DP.

Operating Principle

The principles of capillary thermal mass flow controller technology operation.

The operating principle of the SmartTrak instruments is based on heat transfer and the first law of thermodynamics. During operation process gas enters the instrument’s flow body and divides into two flow paths, one through the sensor tube, and the other through the laminar flow bypass. The laminar flow bypass (often called LFE which stands for “laminar flow element”) generates a pressure drop, P1–P2, forcing a small fraction of the total flow to pass through the sensor tube (m1).

Two resistance temperature detector (RTD) coils around the sensor tube direct a constant amount of heat (H) into the gas stream. During operation, the gas mass flow carries heat from the upstream coil to the downstream coil. The resulting temperature difference (∆T) is measured by the SmartTrak microprocessor. From this, SmartTrak calculates the output signal. Since the molecules of the gas carry away the heat, the output signal is linearly proportional to gas mass flow.

Figures 1-2 and 1-3 show the mass flow through the sensor tube as inversely proportional to the temperature difference of the coils. The coils are legs of a bridge circuit with an output voltage in direct proportion to the difference in the coils’ resistance; the result is the temperature difference (∆T). Two other parameters, heat input (H) and coefficient of specific heat (Cp) are both constant. Through careful design and attention to these parameters, this output signal is made linear over the transducer’s normal operating range (Figure 1-4). As a result, the measured flow through the sensor tube is directly proportional to the gas flow in the main body.

In the SmartTrak mass flow controllers, the gas which flows through the monitoring section is precisely regulated by the built-in electromagnetic valve. The normally closed valve is similar to an on/off solenoid valve, except that the current to the valve coil, and
hence the magnetic field, is modulated so that the ferromagnetic valve armature, or valve plug, assumes the exact height above the valve’s orifice required to maintain the valve’s command flow (set point). The result is excellent resolution.