How does Alicat do it?! How can a proportional control valve hit a setpoint from zero so quickly and accurately? Part of the answer is our valve offset setting. It’s like having a sprinter poised in the starting blocks, versus standing flat-footed, when the starter pistol sounds. Valve offset is an adjustable control parameter which […]
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The valve offset parameter
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Modbus TCP/IP Added to Alicat Industrial Automation Protocol Options
A full range of communication protocols to integrate Alicat mass flow and pressure instruments into process scheme Modbus TCP/IP compatibility has been added to Alicat Scientific’s line of mass flow, pressure, and liquid instrumentation. The new option allows PLCs running the Modbus industrial automation protocol to connect to Alicat instruments over Ethernet cable. Alicat instruments […]
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How can I take advantage of PID Tuning?
Alicat flow and pressure controllers use closed loop control algorithms to achieve their highest degree of control stability. The algorithms are a mathematical relationship that dictates the response of the valve to the flow or pressure conditions. It assesses the difference between the set point and the process value—whether it be mass flow, volumetric flow, […]
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Customizing mass flow and pressure controllers: brilliant to baroque
Many customers, even our most loyal ones, don’t realize that we customize just about EVERY Alicat instrument order. That’s because all our instruments are built when you order, and configured and programmed to best suit the application and conditions for which you’re buying them. Customizations can range from having a meter automatically tare itself every […]
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About that Pressure Control Loop feature? It’s so cool
As an applications engineer at Alicat Scientific, I talk to people in every industry all over the world and learn about how they use our product. One of the most interesting applications I’ve seen is in a chemical reactor, where our mass flow controllers are used to control pressure and make sure that processes are […]
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Precision & Repeatability in Fiber Optic Manufacturing
In the optical fiber industry, manufacturers’ needs center around precision and repeatability. It’s somewhat analogous to archery, where accuracy means hitting the bullseye. If you can hit the same point on the target every time, that’s precision. Repeatability is being able to demonstrate the same precision every time you walk up to the line and […]
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Reducing fluid control cost, complexity and inventory with Alicat MFCs
Controlling multiple pressures and managing differing gases can be critical to getting the data you need but multiple variables often means multiple instruments, adding complication and cost to your system. With one Alicat mass flow controller, you have the ability to simplify process controls—limiting error points—while increasing parameters monitored, and therefore saving you money on […]
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Four kinds of intelligent pressure control
From nitrogen purging or filter characterization, through vessel pressure control and leak testing applications, Alicat instruments are versatile and easy to use, while still providing excellent process control. This is because they operate with very fast control response (50-100 milliseconds) and high accuracy. Our products are easy to program through a display interface, a serial […]
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FAQ: Recalibration of Alicat Devices
When do I need to get my Alicat device calibrated? We recommend sending your units back for yearly calibration. This upholds your lifetime warranty and allows our service department to check for any damage to the device. Over time minor physical changes to the laminar flow elements and pressure sensors inside the device and particulate […]
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Why Recalibrate Your Alicat Device Annually?
When exact measurements and highly accurate data is critical to the success of an experiment, test, calibration or other application, maintaining a precisely calibrated device is key. To meet the demands put on them, we recommend that all Alicat meters and controllers are recalibrated annually. When a device is sent in for recalibration it is […]
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