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Compod Upgrade for Sierra SmartTrak Flow Meters

Compod UpgradeEnable your digital MFC Network to do much more!

Supercharge their SmartTrak mass flow controller with the Compod upgrade! This innovative Compod from Sierra Instruments mounts to the face of any SmartTrak to set up simple process control systems without the need for PLC’s or computers.

Add functionality with the Compod to control a positive shutoff valve, add a pulse output, and read and react to a pressure transmitter. They can also send and receive data and perform datalogging and diagnostics, notifying of valve faults or system upsets. 

The Compod upgrade puts the smarts into your SmartTrak mass flow controller.

Sierra provides FREE user software and a variety of communications protocols: Modbus, Profibus and Foundation Fieldbus, making every SmartTrak easy to integrate into your digital communications network. 


  • Upgrade new or existing SmartTrak range of flow meters
  • Monitor functionality, faults and system upsets
  • User programmable control module
  • Daisy-chain multiple devices
  • Make your own mini process control system

Industries: General Research / Analytical / Life Sciences & Health / OEM / Biopharmaceutical / Life Science

Specifications & Downloads

Benefits of the Compod Upgrade

  • Plug our innovative new Compod into the face of any SmartTrak 100 and streamline, simplify and save
  • Two digital output channels and one analog input channel and a configurable pulse output channel
  • With a Compod, SmartTrak 100 becomes a fully network-enabled multi-drop RS-485 / Modbus RTU
  • Perform functions of much more complex systems at a fraction of the cost
  • Daisy-chain multiple MFC’s on a single network
  • Send and receive data, alarms and commands
  • Perform remote diagnostics and data logging
  • Reduce costs by automating complex gas processes, no need for external PLCs or computers
  • Acts as a vital link in a complex process control network
  • Monitors the operation of instruments and provides potential problem alerts
  • Is available with a local LCD Display for local monitoring
  • Can be used with new instruments or added to existing models
  • Use Sierra’s free software or write proprietary software using open-source MODBUS protocol

Applications suitable for use

  • Gas mixing and blending
  • Batch control
  • Sensor driven leak testing
  • Process monitoring
  • Physical Vapor Deposition (Sputtering)
  • Pressure monitoring and control
  • Gas ratio control
  • Internal valve performance monitoring
  • Triggering alarms
  • Starting or stopping gas flows automatically under user-defined conditions
  • Gas flow totalization with adjustable pulse output

Compod Specifications

To view all the specifications for the Compod you can download the data sheet here   


Flow Type: Gas Flow Meters