EST310 Piezoresistive Pressure Transmitters

EST310 pressure transmitter is widely used in the civil and industrial sectors for the pressure measurement of gas and liquid, including water, oil, light corrosive liquid and gas. Adopting the 1Cr18Ni9Ti stainless steel construction, the active sensing element of global brands, and the instrumentation amplifier specially designed for sensor, EST310 enables accurate zero and span calibration. Apart from dozens models of standard construction and outputs, our team is ready to customize the products based on the needs so as to meet the demands for batch applications.

Features

Pressure type: Gauge/Seal gauge Pressure
Range: 0~0.2MPa…60MPa
Accuracy: ±5%F.S
Stability: 0.25%F.S/Year (typical), 0.4%F.S/Year (maximum)
Signal Output: 4~20mA, 0/1~5V, 0.5~4.5V, 0~10V
Power supply: 10/11~30Vdc, 8~30Vdc, 5V(ratio)
OEM: Available

	Range	Overload	Precision	Stability	Working Temperature	Insulation	Electric Strength
	0~0.2MPa...60MPa	1.5 times	±0.25%F.S, ±0.5%F.S	0.25~0.5%F.S/Y	-40～85℃	>100M Ω @50V	500V@60 second

	Output Signal	Power Supply
-	4~20mA	10~30Vdc
-	0~5Vdc	8~30Vdc
-	1~5Vdc	8~30Vdc
-	0.5~4.5Vdc	5V (Ratio)
-	0~10Vdc	11~30Vdc

Application

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.