Brooks Instrument’s GF40/GF80 Controllers and Meters

GF40/GF80 SeriesBrooks-TMF-GF40-80-Hero-2631 - Copy
Digital Mass Flow Controllers and Meters

Brooks GF40 (elastomer seal) and GF80 (metal seal) thermal mass flow controllers and meters are the perfect choice for customers who use a variety of gases and need to change gas types frequently, or who need to re-range while preserving gas measurement and controlling accuracy.
  • Corrosion-resistant Hastelloy C-22 sensor for durability
  • Sub-1 second settling times
  • 1% of set point accuracy
  • Digital and analog I/O options available
  • Flow accuracy: +1% S.P. 35-100%, +0.35% F.S. 2-35%
  • Full scale flow range: 3 sccm to 50 slm
  • Linearity: ± 0.5% F.S.

Brooks Instrument Sends Quantim Into Space

Brooks Instrument Sends Its Quantim Flow Controller Into Space

March 6, 2009CM-QMBC-IP40-Hero-200

Hatfield, Pennsylvania — Delivering saline solution to a clinic for medical needs … sounds simple enough, right? Not when that clinic is on the International Space Station, the moon or even Mars. Transporting medical fluids that are manufactured on Earth into space is expensive and logistically challenging. NASA Johnson Space Center knew there had to be a way to manufacture medical fluids in space to alleviate the transportation problems and to make spacecraft more self-sufficient, so they called on the microgravity science expertise and spaceflight hardware development know-how of Cleveland, OH based NASA Glenn Research Center and ZIN Technologies, Inc.

ZIN Technologies engaged Brooks Instrument to help solve this unique flow challenge. V-F Controls, Brooks Instrument’s sales representative in Mentor, OH, recommended the Quantim Coriolis mass flow controller. This device would be ideal to measure the water flow through a purification system to a standard IV bag that was pre-filled with salt crystals and a magnetic lab stirrer.2313255888_9710df6d35_b

“We chose the Brooks Quantim because of its accuracy at the low flow range the application requires,” stated Dan Brown, ZIN Technologies. “Plus, the Coriolis mass flow technology was previously tested by NASA and had already been shown to work in reduced gravity.”

This isn’t the first time Brooks products have contributed to the space program, though. In the 60s Brooks Sho-Rate variable area meters (rotameters) were used to leak test space suites. And in the 90s, after the Challenger disaster in 1986, Brooks thermal mass flow meters were used to leak test the space shuttle o-rings. Now, Brooks Quantim Coriolis mass flow controllers are making their way into space to ensure that astronauts have medical fluids on demand for emergency needs.

Construction features of the Quantim mass flow controller are critical in this application because not only does it need to work in zero gravity, but spaceflight electronics also typically must pass a rigorous 6.8G RMS workmanship vibration www. The standard Quantim Series proved to be rugged enough for the vibration levels and the long trip to the space station.

An initial prototype of the medical fluid generation system called IVGEN (IntraVenous fluid Generation) is currently being installed into a laboratory glove box on the station. The prototype consists of an accumulator for pumping potable water, a filter unit with the Quantim installed, a data collection and control unit, a mixing module, and an IV bag with salt crystals. In operation, potable water is transferred into a bladder inside the accumulator. Nitrogen is pumped into the accumulator forcing the water through the Quantim, then through a series of filters, and into the IV bag. The flow rates range from 15-25 mL/min and accuracy is very important in the application. The results from the first test conducted on the station will be returned to Earth and tested for proper filtering and mixing with the salt crystals. Once IVGEN is proven to be successful, the system will be scaled accordingly to meet the requirements of manned missions to the moon and Mars.

Brooks Instrument

Brooks Instrument 1250/1255 Sho-Rate Meters

Brooks’ Sho-Rate family of purge meters now includes the competitively priced 1250 and 1255. This series of flow meters for both liquids and gases is available in 65 or 150mm scale lengths.

These Sho-Rate meters are a perfect choice for panel and cabinet displays. They feature a rotating lens for a 180° view with magnification, integral needle valves on inlet or outlet, direct read scales for common units and fluids, and easy change design for quick exchanges of tube assemblies.

 The new 1250 and 1255 provide flow ranges available of up to 66 LPM Air and 2 LPM Water @ STP. Model 1250 has an accuracy of +/- 5% full-scale; Model 1255 has an accuracy of +/- 3% full-scale. Read the 1250/55 data sheet here for more information.