Resin Pressure Sensors

Resin Pressure Sensor

  • Pushrod system which provides no risk of resin contamination when the sensor is damaged.
  • The optional built-in thermocouple type can measure resin pressure and temperature simultaneously.
  • Various types are available, including highly accurate type which enables overall accuracy of 0.5% FS.
  • Optional Spron diaphragm which enables measurement up to 550°C.
  • Resin pressure
  • Temperature
  • Main features
  • Main specification
  • External dimensions
  • Models

Main features

Environment friendly

The use of a pushrod design eliminates the risk of resin contamination by the filling such as mercury.

Highly reliable and highly accurate

Triple construction of the stem and the optional stem cover reduces influence by external heat and indication errors when the sensor is tightened.
When used with an indicator or a converter with a built-in linearizer, the sensor enables highly accurate pressure measurement of 0.5% FS. (Linearizer is optional)

Available with an optional built-in thermocouple

Available with an optional built-in thermocouple
Temperature and resin pressure can be measured in a single mounting hole. (Thermocouple: type K, J class 2)

Can be used at Max. 550°C

The Spron diaphragm type enables operation at high temperature (max. 550°C) and increases anti-corrosion durability.
This enables pressure measurement of high performance plastic materials (high-melt plastics)
※When the temperature sensor is type J, the maximum temperature is 450°C.

Main specification

  • Pressure transducing method: 4-edge bonded strain gauge type Wheatstone bridge.
  • Range (Rated pressure): Refer to pressure range code.
  • Accuracy and Linearity:

±1.0% of span (When the temperature at diaphragm made of SUS630 is 150°C)
※±2% if the measuring range exceeds 70MPa.
※For Spron diaphragm
70MPa or below: ±1.0% of span
10, 20, 70MPa and 480°C or higher: ±2.0% of span
100MPa: ±2.0% of span
100MPa at 480°C or higher: ±4.0% of span
※Please consult our sales representative concerning Hastelloy C .

  • Hysteresis: within ±0.5% of the span
    ±1% for the type exceeding 50MPa
    ±2% for the type exceeding 70MPa
    ±0.2% for the type exceeding 1MPa

※For Spron diaphragm

70MPa or less: ±1.0% of span
10, 20, 70MPa and 480°C or more: ±2.0% of span
100MPa:±2.0% of span
100MPa at 480°C or more: ±4.0% of span

※Please consult our sales representative concerning Hastelloy C .

  • Allowable maximum temperature of diaphragm: 400°C (550°C for Spron diaphragm)
  • Allowable maximum temperature of strain gauge: 200°C

※When the surface temperature of the lower part of the external case (nut side) is 180°C or above, the temperature of the strain gauge is about 200°C.
If the temperature of the strain gauge exceeds 200°C, performance cannot be maintained.
Please isolate the sensor from the heat source by covering the heat source with insulators so that the temperature does not exceed 180°C.
Another solutions may include: Extending the sensor stem length, installing the sensor at an angle or horizontally, and so on. These methods are expected to suppress the temperature rise on the strain gauge.

  • Allowable overload pressure: 120% of span (500% for 1MPa and 1000% for 0.5MPa type)
  • Marginal overload: 150% of span (1000% for 1MPa and 2000% for 0.5MPa)


Specification of optional functions

  • Temperature sensor type: Thermocouple K, J (Insulation class 2)
  • Temperature detecting point: 2mm inside from the diaphragm surface
  • Maximum allowable working temperature: 550°C (Thermocouple K), 450°C (Thermocouple J)

※400°C except Spron diaphragm
※Even with a Spron diaphragm, if thermocouple J is specified, the max.temperature is 450°C

External dimensions