Pressure Transducers

AST2000H2 Hydrogen Pressure Transducer

AST2000H2 Hydrogen Pressure Transducer

The AST2000 series is now available for hydrogen pressure sensing applications. Tested to a variety of hydrogen and automotive standards including TUV and EIHP, the AST2000H2 pressure sensor series combines the best mechanical design for hydrogen measurement with high performance digital compensation.

Design Benefits
– Krystal Bond™ Technology
– One piece design
– All 316L wetted material for optimal compatibility
– No Oil-filled cavities leave no chance of containment
– Non-welded diaphragm eliminates leak paths and weak points
– Digitally compensated
– EC79 approved
– CE EN61326 Approved

Applications / Industries
PEM Fuel Cells
– Hydrogen Storage
– Hydrogen Filling Stations
– Back Up Power
– Test Stands

Performance @ 25°C (77°F)

Accuracy1<±0.5% BFSL
Stability (1 Year)±0.25% FS, typical
Proof Pressure2X Rated Pressure
Pressure Cycles>100 Million
1 Accuracy includes: Non-linearity, Hysteresis and Non-repeatability

Environmental Data

Operating-40 to 85°C (-40 to 185°F)
Storage-40 to 125°C (-40 to 257°F)
Thermal Limits
Compensated Range-10 to 70°C (14 to 158°F)
Thermal Error±2% of FS (±1% OF FS Optional)
Shock100G, 11 msec, 1/2 sine
Vibration20G peak, 20 to 2400 Hz.
EMI/RFI ProtectionYes

Electrical Data

Output Signal0.5-4.5V ratiometric 4-20mA and 1-5V outputs available, contact factory
Excitation5VDC regulated
Output Impedance<100 Ohms, Nominal
Current Consumption<10mA
Bandwidth-(3dB): DC to 3kHz
Output Noise<2mV RMS
Zero Offset±0.5% of FS
Span Tolerance±0.5% of FS
Output Load10K Ohms, Min.
Reverse PolarityYes