Absolute pressure sensor 4012A seriespiezoresistivesiliconM12 connector
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Characteristics
- Pressure type
- absolute
- Technology
- silicon, piezoresistive
- Electrical connection
- M12 connector
- Fluid
- for hydrogen
- Material
- stainless steel
- Applications
- for engines, for fuel cells
- Other characteristics
- digitally compensated
- Pressure range
Max.: 20 bar
(290.08 psi)Min.: 0 bar
(0 psi)- Process temperature
Max.: 50 °C
(122 °F)Min.: -20 °C
(-4 °F)
Description
Short description
These absolute pressure sensors (Type 4012A) are designed for hydrogen environments such as hydrogen engines and fuel cells, offering pressure ranges of 0 … 20 bar and 0 … 50 bar and media compatibility with hydrogen and hydrogen mixtures.
Product details
In Type 4012A sensors the pressure is transmitted via a thin steel diaphragm and oil to a silicon load cell. The load cell contains implanted piezoresistive resistors configured as a Wheatstone bridge; the bridge is unbalanced by pressure, producing an output proportional to the pressure. Components are made from hydrogen‑compatible stainless steel and the diaphragm is gold‑plated to reduce hydrogen diffusion and stabilize measurements. Cabling is fully shielded and includes kink protection to improve signal quality and durability. Connections, extension cables and amplifiers are standardized across the digitally compensated DS sensor family equipped with PiezoSmart, enabling seamless integration with piezoresistive amplifiers Type 4624A (single channel), Type 4665B (SCP / KiBox1) and Type 4667A (KiBox2).
Main features
Technical specifications
These absolute pressure sensors (Type 4012A) are designed for hydrogen environments such as hydrogen engines and fuel cells, offering pressure ranges of 0 … 20 bar and 0 … 50 bar and media compatibility with hydrogen and hydrogen mixtures.
Product details
In Type 4012A sensors the pressure is transmitted via a thin steel diaphragm and oil to a silicon load cell. The load cell contains implanted piezoresistive resistors configured as a Wheatstone bridge; the bridge is unbalanced by pressure, producing an output proportional to the pressure. Components are made from hydrogen‑compatible stainless steel and the diaphragm is gold‑plated to reduce hydrogen diffusion and stabilize measurements. Cabling is fully shielded and includes kink protection to improve signal quality and durability. Connections, extension cables and amplifiers are standardized across the digitally compensated DS sensor family equipped with PiezoSmart, enabling seamless integration with piezoresistive amplifiers Type 4624A (single channel), Type 4665B (SCP / KiBox1) and Type 4667A (KiBox2).
Main features
- Pressure ranges: 0 … 20 bar and 0 … 50 bar
- Compensated temperature range: -20 … 50 °C
- Thread sizes: M12x1, M14x1.25
- Media compatibility: Hydrogen and hydrogen mixtures
- Gold‑plated diaphragm to reduce hydrogen diffusion
- Suitable for dynamic pressure measurements
Technical specifications
- Model: Type 4012A
- Sensing element: Silicon load cell with implanted piezoresistive resistors (Wheatstone bridge)
- Pressure transmission: Thin steel diaphragm with oil as transmission medium
- Pressure ranges: 0 … 20 bar; 0 … 50 bar
- Compensated temperature range: -20 … 50 °C
- Thread sizes: M12x1, M14x1.25
- Diaphragm: Gold‑plated to reduce hydrogen diffusion
- Materials: Hydrogen‑compatible stainless steel components
- Cabling: Fully shielded with kink protection
- Compatibility: Digitally compensated DS sensor family with PiezoSmart; amplifiers Type 4624A, 4665B, 4667A
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