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 Inconel, SPRON diaphragm type enables operation at high temperature (max. 550°C*) . This enables pressure measurement of high performance plastic materials (high-melt plastics).
  The SPRON diaphragm type is Attains the same corrosion resistance as Hastelloy C.
  *When the temperature sensor is type J, the maximum temperature is 450°C.

*Inconel™ is a registered trademark of Special Metals Corporation.
*SPRON™ is a registered trademark of Seiko Instruments Inc.
*Company names and product names used in this contents are the trademarks or registered trademarks of the respective companies.

Main specification

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

SUS630 type ( At At 150°C of diaphragm temperature):

Within ±1% of full scale

Within ±2% of full scale (Over 70 MPa )

Inconel, SPRON type:

Within ±1% of full scale

More than 480°C of 10,20MPa :Within ±2% of full scale

HASTELLOY C type:

 Please contact RKC agent

• Hysteresis:

SUS630 type:

Within ±0.5% of full scale

Within ±1% of full scale (Over 50 MPa )

Within ±2% of full scale (Over 70 MPa )

Within ±0.2% of full scale (1MPa type)

Inconel, SPRON type:

Within ±1.0% of full scale

More than 480°C of 10,20MPa :Within ±2.0% of full scale

HASTELLOY C type:

 Please contact RKC agent

• Allowable maximum temperature of diaphragm:

400°C (550°C for Inconel, SPRON diaphragm)

• Allowable maximum temperature of strain gauge:

200°C

* When the temperature at the bottom of outer tube (nut side) is more than 180°C,  the temperature at the strain gauge exceed 200°C. If the temperature at the strain gauge exceed 200°C, the performance cannot be assured. Therefore, cover the heat source with a heat insulating material so that the above temperature does not exceed 200°C.
The temperature at the strain gauge can be expected not to rise when:
>the long type of sensor is used or
>the sensor is installed a slant or transversely.
If any of the above measures can be taken, take it.

• 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 built-in thermocouple

• 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)

* Even with a Inconel, SPRON diaphragm, if thermocouple J is specified, the max.temperature is 450°C

*Please refer to the catalog for details of the Safety Barrier.

External dimensions

*Please refer to the catalog for details of the Safety Barrier.

Models

*Please refer to the catalog for details of the Safety Barrier.