EST3123 Centrifuges Pressure Transducers


EST3123 Centrifuges Pressure Transducers

EST3123 line is widely used in large water-cooler centrifuges or chillers, single-spiral water-cooled chiller or hot water units. Featuring strong anti-jamming capability, high reliability and adaptability, the product has been successfully used in 10000Vac water-cooled centrifugal chillers.


  • Pressure type: Gauge/Absolute Pressure
  •  Range: 0~5bar…50bar
  • Accuracy: ±0.5%F.S,±1.0%F.S
  • Customized working temperature: -35℃~105℃
  • Signal output: 0.5~2.5…4.5Vdc
  • Power supply: 5Vdc
  • Housing material: Brass
  • Ingress Protection: IP65
  • OEM: Available
ModelEST3110EST3110 BEST3120
Data SheetDownloadDownloadDownload
Power Supply 10~30Vdc12~30Vdc10~30Vdc,5Vdc
Output 4~20mA,0.5~4.5V4~20mA,0.5~4.5V4~20mA,0.5~4.5V
Electrical ConnectionPackardM12X1/ GX12/16-7DIN43650, IP65; GX 16-7
Pressure ConnectionG1/4, NPT1/4, 7/16-20UNFG1/4, NPT1/4, 7/16-20UNFM20 x 1.5, G1/4, G1/2, NPT1/4, 7/16-20UNF
Ingression ProtectionIP65IP45/ IP65IP45/ IP68
Data SheetDownloadDownloadDownload
Power Supply 10~30Vdc,5Vdc5±0.25Vdc5Vdc
Output 4~20mA,0.5~4.5V0.5~2.5…4.5Vdc0.5~2.5…4.5Vdc
Electrical ConnectionPackard, DIN43650PackardPackard
Pressure Connection7/16-20UNF, 9/16-20UNFCooper Pipe Connection7/16-20UNF, 9/16-20UNF, M20 x 1.5, G1/4
Ingression ProtectionIP65IP65IP65


Large water-cooler centrifuges or chiller | Water-cooler single cold | Hot water units


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.

Accuracy and range for EST 3 series

eastsensor accuracy map

eastsensor map map

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  • General Instruction and Datasheet-EST3123 GID-3-EV01