EST3130 Automotive Pressure Transducers | Ceramic Sensing
EST3130 line is low-cost pressure transmitter of high quality and reliability. Aiming for both civil and industrial purposes, the product is available for OEM. Being small in size and light in weight, the compact product is widely used for the field measurements of compressors, automobiles and air conditioners.
Features
- Pressure type: Gauge Pressure
- Range: 0~2bar~600bar
- Accuracy: ±1.0%F.S, ±2.0%F.S, ±2.5%F.S
- Stability: 1.0%F.S/Year(typical), 2.0%F.S/Year(maximum)
- Customized working temperature: -40℃~125℃
- Signal Output:0~5V, 0.5~4.5V, 1~3V
- Power supply: 10~24Vdc, 5Vdc, 8~30Vdc
- OEM: Available
| Range | Overload | Precision | Working Temperature | Insulation | Electric Strength | |
|---|---|---|---|---|---|---|
 | 0~2bar…600bar | 2 times | ±1.0~±2.5%F.S | -40～125℃ | >100MΩ@50V | 500V@60second |
| Three wire | Three wire | Three wire | Three wire | |
|---|---|---|---|---|
| Output Signal | 0~5Vdc | 0.5~4.5Vdc | 0.5~4.5Vdc | 1~3Vdc |
| Power Supply | 10~24Vdc | 10~24Vdc | 5Vdc | 8~30Vdc/ac |
| Load Resistance | (U-10)/0.02(Ω) | (U-10)/0.02(Ω) | >100kΩ | >100kΩ |
Application
Large water-cooler centrifuges or chiller | Water-cooler single cold | Hot water units
Technology
Piezoresistive based transducers rely on the piezoresistive effect which occurs when the electrical resistance of a material changes in response to applied mechanical strain. In metals, this effect is realized when the change in geometry with applied mechanical strain results in a small increase or decrease in the resistance of the metal. The piezoresistive effect in silicon is due primarily to changes at the atomic level and is approximately two orders of magnitude larger than in metals.
Sputter deposited thin film pressure sensor is a kind of Piezoresistive pressure sensors, difference exist that the thin-film sensor consists of a resistor pattern that is vaporized or sputter-deposited onto the force-summing element (the measuring diaphragm). In some transducers the resistors are not directly mounted on the diaphragm but are on a beam linked to the diaphragm by a push rod.
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Accuracy and range for EST 3 series
