KEP’s BATCHtrol ll is a versatile batcher and rate meter that can be used as two separate 8-digit counters and as a 6-digit rate meter. The standard unit contains two separate “K” factors to convert inputs to total and rate data. At any time, the user may view the total, grand total or the rate without interrupting the counting process. The BATCHtrol II will accept either pulse or analog inputs. The BATCHtrol II features a large display that can be seen from across the room. It also has an easy to use keypad and start/stop buttons.
Hoffer HO for Liquid Service
- Available turn down range is 10:1 to 100:1
- Linearity of ± 0.5% of reading (±0.25% typical) over tabulated linear flow range.
- Repeatability of ± 0.1% (±0.05% typical) over tabulated linear repeatable flow range.
- Temperature range: -450°F to + 450° F standard. There is a high temperature option to +850°F, dependent upon flowmeter configurations.
- Pressure drop characteristics 4 to 5 PSI at maximum linear flow rate at one CSTK.
- End fittings are NPT, MS flared and flanged styles.
- Bearing Styles: Ceramic hybrid ball bearings and sleeve bearings in tungsten carbide and hard carbon composite are available.
Hoffer HO for Gas Service
- Available turn down range is dependent upon gas density and operating conditions.
- Linearity of ± 1% of reading typical (each meter’s reading is dependent upon density).
- Repeatability of ± 0.25% over tabulated linear flow range.
- Temperature range: -450° F to + 350° F continuous (to + 450° F intermittent heat). Also depends on bearing/coal selection.
- End fittings of MS flared and flanged styles are recommended.
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.
“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’ 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.