Electro-Pneumatic Analog Circuit-Card Servo Pressure Transducers
September 30, 2010 by Randy Frank
Filed under Featured, Pressure
Marsh Bellofram Type 3110 and Type 3120, a series of single- (3110) and double-loop (3120) electro-pneumatic analog circuit-card servo pressure transducers are designed for space-conscious, high-performance, economical air pressure monitoring applications.
With a footprint of 2 x 2.8 inches (50.8 x 71.12 mm) and available analog monitor output ranges from 29” Hg to 600 psig, the transducers offer user selectable, configurable (zero and span) industry standard 0-10 VDC or 4-20 mA control signals. Also, custom signal outputs are available upon request.
Two manifold block configurations are available. The first style has front ports to facilitate direct panel mounting or seamless insertion into a DIN-rail adapter tray. The second has bottom ports targeting use within multi-unit manifold system applications. An onboard pressure transducer mounted within the manifold block can achieve ±0.5% full scale accuracy.
For more information about Marsh Bellofram electro-pneumatic analog circuit-card servo pressure transducers, click here.
Pressure Sensor Approved for Hostile Environment
Mount Olive, NJ – American Sensor Technologies, Inc. (AST) has released the AST2000H2 pressure sensor/transducer for hydrogen pressure measurement applications. This digitally compensated pressure sensor has the accuracy and construction to meet the expectations of the Hydrogen pressure measurement market. The AST2000H2 is packaged with an SAE-3 or SAE-4 pressure port, 0.5-4.5V Ratiometric output signal, Packard Metripack 150 electrical connection and optional 1% total error band. This pressure sensor is designed for applications including, but not limited to PEM fuel cells, on-board vehicle cylinder pressure measurement, hydrogen regulator pressure measurement, hydrogen filling stations, hydrogen storage containers and test stand equipment.
The AST2000H2 features AST’s proprietary Krystal Bond™ Technology pressure sensing element. The thread, hex and diaphragm are all machined from one piece of 316L SS, eliminating the risks associated with other sensor technologies including media compatibility, weld failures, and contamination through an oil-filled cavity. The AST2000H2 was tested to the TUV compatibility standard created by the EIHP (European Integration Hydrogen Program) for Compressed Hydrogen Gas (CGH2) components for on-board vehicle storage systems. The AST2000H2 pressure sensors passed all tests including media compatibility, aging, corrosion resistance, endurance testing, pressure cycling, leakage testing, isolation, noise compatibility, and hydraulic strength. The thick diaphragm of the 900 bar (13,053.4 PSI) pressure sensors not only held the 1,800 bar burst pressure test, but also continued to operate above 2,400 bar until the O-ring extruded.
The AST2000H2 is constructed to meet the environmental conditions associated with hydrogen pressure measurements. The product was also tested and approved by Detroit Testing Laboratories to an environmental test for approval on the Hydrogen HyWay 2/3. Each sensor is packaged with a welded stainless steel housing and sealed Packard Metripack 150 electrical connection. The test batch of sixty (60) pressure sensors was subjected to various shock, vibration, and environmental tests. The sensors withstood thermal, mechanical and drop tests. Environmental testing included humidity storage and cycling, chemical testing, water spray, salt fog, storage temperature, and dust.
The AST2000H2 passed separate electrical environmental tests conducted by Underwriters Laboratories to the Ford ES-XW7T-1A278-AC and Daimler Chrysler DC-10614 EMC (Electro-Magnetic Compatibility) specifications to 300V/m of interference. Click here for product information on AST2000H2 Pressure Sensor.
Low Pressure Transducers from Gems
Plainville CT – Gems® Sensors & Controls™ announces the launch of the new 3300 series pressure transducer. The 3300 series transducer is designed for low pressure applications that demand small size and low cost along with high accuracy and stability. The 3300 Series pressure transducer is well suited to applications such as chemical sterilizers, autoclaves, pneumatics, HVAC&R, pumps & compressors.
The 3300 pressure transducer is the newest addition to the highly successful 3100 and 3200 series transducers, bringing a versatile low pressure capability to the product line and opening up a host of new applications across a number of different industries. All stainless steel wetted parts and all welded construction make the unit compatible with harsh chemicals and environments. In addition, the unique temperature compensation at source technology delivers outstanding temperature stability.
The 3300 series is available in pressure ranges from 15 to 250 psi and is capable of operating over a temperature range of -40°F to 257°F. Available in voltage, current, and ratiometric outputs, with a wide selection of connectors, pressure fittings and mating connectors makes the 3300 suitable for many applications without modification.
Gems Sensors & Controls
www.GemsSensors.com
Compact 3100 Series Pressure Transducer
March 13, 2009 by R. Nelson Parrish
Filed under Pressure
Setra Systems, Inc. offers its Compact 3100 Series pressure transducer providing a low cost solution for OEM applications such as Hydraulic Controls, HVAC Systems, Engine Controls, Industrial Process, Off-Highway Equipment, Compressors, and Pumps.
This unit’s small footprint, less than 1 inch in diameter, makes it ideal for installations where space is at a premium, and its all stainless steel construction is resistant to corrosive media typically found in industrial process applications.
The 3100 Series employs highly accurate thin film technology and a unique custom designed ASIC offering exceptional performance with accuracy to 0.25% full scale, long-term stability of 0.1%/yr, and thermal stability accurate to within 1.0%/100°F over the entire compensated temperature range of -40°F to 250°F.
Offered in pressure ranges from 100 psi up to 30,000 psi and a wide variety of outputs(0 to 5, 1 to 5, 0.5 to 4.5, 1 to 6 , 0 to 10 VDC, 4 to 20 mA, and 0.5 to 4.5 V ratiometric,), pressure fittings (NPT, UNF, BSP and Metric), and electrical connectors (M12, Packard, Deutsch, DIN43650C and others), this unit can be configured in any number of ways without incurring extra costs associated with customization. In addition, voltage units are available with a dual temperature/pressure output.
