New Mass Flow Controller from Alicat Performs at High Volumes

Design overcomes limits of high flow rates to maximize speed and accuracy
Tucson, Arizona (August 23, 2016) – Alicat Scientific has engineered a new mass flow controller with its highest top flow rate suitable to a wider range of applications. The MCRH can accommodate flow rates of up to 5000 slpm, without compromising speed or precision of gas control. The highly stable controller manages industrial processes with more chaotic upstream fluctuations, such as control of industrial combustion gases, or mass flow into food and packaging processes.

Alicat, 5000 slpm

New Mass Flow Controller engineered to overcome limits of high flow rates.

The MCRH 5000 slpm precisely and rapidly controls mass flow rate, volumetric flow rate, or back pressure of gases in high flow processes. To overcome the poor turndown ratio and slow response of existing methods (such as interlinking a meter with an external valve) Alicat designed a new flow geometry. This new design accommodates the higher flow rates, with a low pressure drop of 14.1 psig at full scale. A dual valve design enables a fast 100 millisecond control response time without significantly raising instrument power requirements.

The instrument’s Gas Select firmware includes a library of up to 130 preloaded gases, user selectable in the field. The MCRH 5000 slpm can be programmed with the instrument’s push button menus and on-board display, or via remote connection. Digital communications options include RS-232 or RS-485 serial, Modbus, or PROFIBUS, as well as analog 0-5 Vdc, 1-5 Vdc, and 0-10 Vdc, or 4-20 mA.

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Alicat Adds 20SLPM Model to BASIS™ Mass Flow Controllers

Compact, reliable gas flow for OEM and process use

Tucson, Arizona (May 4, 2016) – Alicat Scientific has expanded its BASIS™ line of mass flow controllers, adding a new 20SLPM model to fit a wider range of applications including sparging into liquids, sample dilution, and many gas mixing applications. Specifically designed for original equipment manufacture and process integration, BASIS is Alicat’s smallest footprint instrument, providing fast, accurate control of gas flow rates in an economical, easy-to-integrate package. Ideal for use in OEM gas analyzers, automated gas mixing on process lines, and anywhere basic mass flow-only control is required, the BASIS family now offers models with full scale at 100 cubic centimeters per minute, 1 liter, and 20 liters per minute.

Alicat Adds 20SLPM Model to BASIS™ Mass Flow Controllers

Stocked and ready for quick ship on evaluation orders, all BASIS units are instantly on and performing at full accuracy in just 70 ms. A 100 ms control response enables BASIS to react in real time to upstream fluctuations. NIST-traceable accuracy is +/-(1.5% of the reading + 0.5% full- scale).

BASIS is available with the following multi-gas calibrations: Air, Ar, CO2, N2, O2, N2O (selectable over serial connection); He, H2 are also available in single-gas units. Multiple communications options – RS-485, RS-232 and Modbus Serial; and 0-5 Vdc analog – mean BASIS can be built into a broad range of end-user products. For process applications, the availability of analog and digital feedback allows for both PLC and PC control options.

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Alicat Releases Gas Select 6.0 Firmware for its Mass Flow Meters and Controllers

New user-selectable engineering units, better control and faster data with new control software
Tucson, Arizona (March 31, 2016) – Alicat Scientific has updated its Gas Select™ firmware for Alicat mass flow meters, mass flow controllers and pressure controllers. Gas Select 6.0 improves user control and data speed, adding features that enable users to make changes to instruments without a factory visit.

Alicat Gas Select

Alicat’s Gas Select 6.0 firmware offers better control and faster data.

Gas Select firmware comes standard on all Alicat mass flow meters and controllers, and includes a library of up to 130 preloaded gases, referenced to NIST REFPROP 9. The firmware drives the flexible user interface for controlling instrument operation.

A new feature of version 6.0 is user-selectable engineering units. Units of pressure, temperature, volume, standard volume or mass can all be changed in the field. With this capability, flow instruments can be realigned to correlate with other calculations in the process stream, or even repurposed for new applications.

Also new with the update is the ability to enter real STP for operating conditions, rather than choosing from a few pre-loaded common standards. New flexibility to filter data line queries down to essential parameters results in faster, more frequent data updates. Setpoint input is now accepted either at the local panel or through the serial port, without first switching the input source. Both sources are active full time. The local panel is also easier to read, with the primary parameter that is displayed center screen now clearly labeled.

The new firmware is compatible with standard Alicat instruments—flow meters, flow controllers and pressure controllers—serial number 80,000 and higher. Gas Select 6.0 is installed on new instruments shipped after March 3rd, 2016. Existing units can be factory upgraded by request during annual recalibration.

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BASIS™ Mass Flow Controllers Provide Reliable Gas Flow Control for OEM and Process Use

Compact units deliver fast, accurate flow rate control
Tucson, Arizona (June 10, 2015) – Alicat Scientific has added a new line of mass flow controllers specifically for original equipment manufacture and process integration. BASIS™ is Alicat’s smallest footprint instrument, providing fast, accurate control of gas flow rates in an economical, easy-to-integrate package. BASIS is ideal for use in OEM gas analyzers, automated gas mixing on process lines, and anywhere basic mass flow-only control is required.

Alicat BASIS

BASIS™ provides fast, accurate control of gas flow rates in an economical, easy-to-integrate package.

Stocked and ready for quick ship on evaluation orders, all BASIS units are ready to control process flows at full accuracy in just 70 ms. A 100 ms control response enables BASIS to react in real time to upstream fluctuations. NIST-traceable accuracy is +/-(1.5% of the reading + 0.5% full-scale).

BASIS is available with the following multi-gas calibrations: Air, Ar, CO2, N2, O2, N2O (selectable over RS-485); He, H2 are also available in single-gas units. Dual communications – RS-485 Serial and 0-Vdc analog – mean BASIS can be built into a range of end-user products. For process applications, the availability of analog and digital feedback allows for both PLC and PC control options.

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Alicat Brings Mass Flow Control to Industrial Modbus Networks

Mass flow meters and controllers now available with Modbus-RTU communications protocol
Tucson, Arizona (March 27, 2014) – Alicat Scientific, Inc. now offers Modbus-RTU communications protocol as an option on all of its mass flow meters, mass flow controllers and pressure controllers. Modbus-RTU is an enduring industrial networking standard that allows communication among hundreds of devices on a single network.

Alicat Modbus

Alicat mass flow meters and controllers now available with Modbus-RTU communications protocol

Alicat’s new Modbus implementation brings the company’s signature laminar differential pressure-based measurement and 50-ms proportional control speeds to existing industrial Modbus-RTU networks. The Modbus protocol outputs all of the mass flow or pressure controller’s data, including: mass flow, volumetric flow, pressure, temperature, selected gas calibration, setpoint and totalized flow. Users may send commanded setpoints, gas selections and register changes to the Alicat meter or controller using a Modbus-enabled computer of PLC.

This Modbus offering may be paired with either Alicat’s standard multi-drop RS-232 connectivity or the optional RS-485 for greater data integrity over longer distances. Physical connector choices include 8-pin mini-DIN, 9-pin D-sub and 15-pin D-sub, which are available in a variety of pinout configurations for easy drop-in replacement of older industrial units. All Alicat instruments are backed by NIST-traceable calibration, comprehensive technical support and a lifetime warranty.

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Alicat Develops First Bidirectional Flow and Pressure Controller

MCD-Series dual-valve mass flow controllers manage flow both into and out of a process
Tucson, Arizona (December 11, 2013) – Alicat Scientific, Inc.’s new MCD-Series Bidirectional Mass Flow and Pressure Controllers precisely and rapidly control mass flow rate, volumetric flow rate and absolute pressure of gases in two flow directions. This flexible dual-valve design is the first of its kind, accommodating demanding process control requirements in gas analysis, leak testing and environmental applications.

Alicat MCD

Alicat’s MCD-Series bidirectional mass flow controllers manage multiple process parameters.

With a dedicated inlet valve and a dedicated exhaust valve, a single MCD can control upstream and downstream flows, as well as positive pressure or backpressure in both open and closed systems. It’s ideal for processes that require bidirectional flow control and/or pressure control, as well as for pressure control in closed systems, while also monitoring mass flow. User-selectable control modes allow users to switch quickly between mass flow, volumetric flow and absolute pressure measurement and control for maximum flexibility.

Alicat’s patented, internally compensated laminar differential pressure measurement yields linear results over a very wide flow range. The resulting volumetric and mass flow data is fully compensated for changes in pressure and temperature and corrected for the user’s standard temperature and pressure (STP). Available 0.4% accuracy +0.2% full-scale repeatability and less than 100ms control response times ensure top performance of gas flow processes.

The MCD-Series’ large integrated display allows users to access setpoint control and PID valve tuning without need for a computer. While it can operate as a standalone device, it also comes with both analog and RS-232 digital communications to integrate easily into process control instrumentation. It comes with 30 field selectable calibrations, and is available in full-scale mass flow rates from -0.5/+0.5 sccm to -3000/+3000 slpm. All units are backed by NIST-traceable calibration, comprehensive technical support, and a lifetime warranty.

To learn more about Alicat’s MCD-Series Bidirectional Mass Flow Control, visit alicat.com/mcd, or call +1 520 290-6060. To see an “Ask Alicat” video featuring the MCD, visit http://www.youtube.com/watch?v=6jPHKCqh-iw.

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Alicat Develops First Bidirectional Flow and Pressure Controller

MCD-Series dual-valve mass flow controllers increase experimental possibilities
Tucson, Arizona (December 11, 2013) – Alicat Scientific, Inc.’s new MCD-Series Bidirectional Mass Flow and Pressure Controllers precisely and rapidly control mass flow rate, volumetric flow rate and absolute pressure of gases in two flow directions. This flexible dual-valve design is the first of its kind, allowing researchers to replace multiple dedicated instruments and make rapid changes to experimental setups.

Alicat MCD

Alicat’s MCD-Series bidirectional mass flow controllers replace multiple instruments for laboratory use.

User-selectable control modes allow users to switch quickly between mass flow, volumetric flow and absolute pressure measurement and control for maximum flexibility in laboratory use. With a dedicated inlet valve and a dedicated exhaust valve, a single MCD can control upstream and downstream flows, as well as positive pressure or backpressure in both open and closed systems. As a universal control element, it can be used to monitor or control a number of parameter combinations, making it useful in a variety of configurations.

Alicat’s patented, internally compensated laminar differential pressure measurement yields linear results over a very wide flow range. The resulting volumetric and mass flow data is fully compensated for changes in pressure and temperature and corrected for the user’s standard temperature and pressure (STP). Available 0.4% accuracy +0.2% full-scale repeatability and less than 100ms control response times ensure top performance of gas flow processes.

The MCD-Series’ large integrated display allows users to access setpoint control and PID valve tuning without need for a computer. It comes with 30 field selectable calibrations, and is available in full-scale mass flow rates from -0.5/+0.5 sccm to -3000/+3000 slpm. All units are backed by NIST-traceable calibration, comprehensive technical support, and a lifetime warranty.

To see an “Ask Alicat” video featuring the MCD, visit http://www.youtube.com/watch?v=6jPHKCqh-iw.

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Ultra-Low Pressure Drop Flow Meters and Controllers Conserve Expensive Gases

Whisper series from Alicat have industry’s lowest differential pressure ranges
Tucson, Arizona (April 16, 2013) – Alicat Scientific, Inc.’s new line of mass flow meters and controllers overcome the challenges of low pressure systems to deliver accurate metering and control. The Whisper series saves time and money in semi-conductor and other process industries with systems using very low pressure differentials or exotic gases.

Alicat Whisper Flow Meter

Alicat’s Whisper series saves time and money in systems using very low pressure differentials or exotic gases.

All Alicat meters and controllers are based on its patented laminar flow technology, resulting in fast and accurate responses. The Whisper series also incorporates a very low differential pressure sensor and redesigned flow body to achieve a differential pressure range of .01PSID to 2.0PSID, depending on flow rate and configuration. Prior to Whisper series instruments, users relied on larger pumps or supply sources, higher feed pressures, or the use of more bottled gas to overcome pressure drop requirements imposed by mass flow instrumentation.

Compatible with 30 field selectable gases and gas mixes, Whisper flow meters and controllers can operate as standalone devices or integrate easily into process control instrumentation. In addition to mass flow, a single device quickly and accurately measures pressure, temperature and volumetric flow. For applications requiring precision gas flow control, Whisper series mass flow controllers deliver accurate flow regulation of gases with the ability to respond to upstream gas flow changes, attaining and maintaining flow setpoints in less than 100ms.

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Gas Mixing Software Automates Blending of Constituent Gases

Alicat Flow Vision MX simplifies setup, minimizes error potential 
Tucson, Arizona (January 21, 2013) – Alicat Scientific’s new software platform, Flow Vision MX, computerizes control of gas mixing, saving time and reducing error. The simple platform configures up to six Alicat mass flow controllers into a single gas mixing station with an easy to follow visual set up. 

Alicat Flow Vision MX simplifies setup in blending constituent gases.

Alicat Flow Vision MX simplifies setup in blending constituent gases.

An intuitive graphical user interface, including a set up wizard, guides users through programming gas mixture parameters. The software prohibits mixtures below 100 percent, eliminating calculation errors and wasted gas costs. Gas blend settings can be saved on the system for future use, making production changeovers quick and error free.

Flow Vision MX’s data logging lets users review mixture accuracy and performance. Percentages for the total mixture, a single controller or multiple controllers are quickly and easily adjusted with simple sliders. With minimal system requirements, the software runs efficiently on even older computers. It support new mixing systems based on Alicat controllers and can be used to upgrade existing manual ones, saving time and money.

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Alicat Scientific Adds USB Convenience to Flow Meter Communication Module

Monitor and control up to nine Alicat devices from a single computer
Tucson, Arizona (July 24, 2012) – Alicat Scientific, Inc. now offers its BB9 Communication Module in a USB model. The BB9-USB replaces the standard RS-232 serial connection, providing a direct computer connection for monitoring and control of Alicat Flow devices.

Alicat's USB-99 monitors and controls up to nine Alicat devices from a single computer.

Alicat's USB-99 monitors and controls up to nine Alicat devices from a single computer.

The BB9 joins up to nine Alicat flow and pressure devices to a single computer for independent monitoring and operation. This remote monitoring saves time and money, especially in flow instrument installations where devices are a long distance from the control site. The BB9 will also distribute power to connected Alicat devices. In installations with more than nine Alicat flow devices, multiple BB9s can control up to 26 Alicat devices.

Alicat flow and pressure devices connect to the BB9-USB via Alicat’s eight pin mini din connector and DC-62 cables. The BB9-USB box then plugs into most computers via standard USB port. The BB9’s light, yet rugged, composite chassis can be mounted in almost any location, in any orientation.

With the industry’s highest turndown ratio, Alicat’s mass flow meters quickly and accurately measure pressure, as well as temperature, volumetric, and mass flow. Devices come pre-calibrated (NIST traceable) for Air, Hydrogen, Helium, and Argon as well as 16 other gases and 10 gas mixes.

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