All Teledyne Hastings mass flow controllers and meters are configured for your specific conditions. To see available options, refer to the back section of each product bulletins. Some basic considerations when choosing a flow instrument include:
While there are additional factors that should also be considered, such as communication, pressure drop and ambient temperature, these three factors are a great place to start when determining which flow instrument is suited to your application.
If you need help converting mass flow into volumetric flow or converting it into different units, then Teledyne Hastings has developed a thermal mass flow calculator to help determine your new flow rate. In standardized volumetric flow units (sccm, slm, scfm,), the reference conditions, or “STP" temperature and pressure, define the amount of gas by determining the number of molecules using the Ideal Gas Law. In many cases, the selected reference conditions are 0°C & 760 Torr. However, other reference conditions are also used, such as 25°C & 760 Torr, or 70°F & 760 Torr.
What We Offer
- Expert first contact
- Fast and easy product evaluation
- Customized solutions
- Design-in support
- Lifetime application support
Teledyne Hastings has used our 75 years’ worth of experience to create application notes for our customers. These are valuable technical resources that go into detail about how our flow instruments can be used in various applications. We also have other valuable technical resources like our mass flow glossary, webinars and product videos. Some of our key applications include the following:
Frequently Asked Questions
What’s the difference between a mass flow controller and mass flow meter?
A mass flow meter measures flow using a sensor but does not include a proportional control valve and does not control gas flow. Mass flow controllers both measure and control gas flow, according to a command signal (setpoint). For accurate flow control, the controller measures and adjusts the gas flow using a precise, proportional control valve to maintain stable control of the flow rate.
What does a mass flow controller do?
Mass flow controllers are instruments that measure and control the flow of gas in reference to a specified flow rate. When adjustments in gas flow are required to maintain that rate, the feedback from the sensor is used to create an electronic signal to send to a control valve. A controller is calibrated for the flow range over-which they maintain control. A mass flow controller is often used for process control when accurate measurement and flow control over a process is required.
Are mass flow controllers gas specific?
A mass flow controller is built for specific operating conditions. Teledyne Hastings' mass flow controllers are thermal based, so our mass flow controllers are gas specific. These controllers are built to cover a user's flow range, upstream & downstream pressure conditions and gas type.
What is SCCM in mass flow controller?
SCCM stands for Standard Cubic Centimeters per Minute. This is a unit of measure for volumetric flow. In standardized volumetric flow units, the reference conditions, or “STP" temperature and pressure, define the amount of gas by determining the number of molecules using the Ideal Gas Law.