DatasheetDynisco MRT 462 Multiple Range Pressure Sensor
The Dynisco MRT 462 is a versatile multiple range pressure sensor for applications with changing process conditions. With this sensor, users can select from four pressure ranges on a single transducer. Range selection is made via a rotary switch accessible on the transducer, allowing the required pressure range to be set directly in the field.
The MRT 462 is designed to provide maximum flexibility for different materials, process conditions and pressure requirements. Depending on the selected configuration, the sensor can be ordered with equivalent pressure ranges in psi, bar, kg/cm² or MPa. For the selected range, the transducer provides a 3.33 mV/V FSO output signal.
The sensor design is based on a four active arm bonded Wheatstone bridge strain gauge. The MRT 462 offers an accuracy of ±1.0 % FSO and a repeatability of ±0.1 % FSO. The wetted parts are made of DyMax® coated 15-5 PH stainless steel. Internal 80 % shunt calibration and the proven sensor design support reliable and repeatable pressure measurement in industrial applications.
| Type | Multiple range pressure sensor |
|---|---|
| Model | Dynisco MRT 462 |
| Application | Pressure measurement under changing process conditions and with different materials |
| Pressure range selection | Four user-selectable pressure ranges in one model |
| Range selection | Externally selectable via rotary switch on the transducer |
| Output signal | 3.33 mV/V FSO for the selected range |
| Accuracy | ±1.0 % FSO |
| Repeatability | ±0.1 % FSO |
| Mounting torque | 500 inch-lbs maximum |
| Overload rating | 20,000 psi / 1,400 bar |
| Material in contact with pressure media | 15-5 PH stainless steel, DyMax® coated |
| Weight | 1.5 lbs |
| Configuration | Four active arm bonded Wheatstone bridge strain gauge |
| Bridge resistance input | 345 Ω minimum |
| Bridge resistance output | 350 Ω ±10 % |
| Full scale output | 3.33 mV/V ±2.0 % |
| Zero balance | ±10 % full scale |
| Excitation | 10 VDC recommended, 12 VDC maximum |
| Internal shunt calibration | 80 % FSO ±1.0 % |
| Insulation resistance | 100 MΩ at 50 VDC |
| Maximum diaphragm temperature | 750 °F / 400 °C |
| Zero shift due to diaphragm temperature change | 15 psi / 100 °F typical or 27 psi / 100 °C |
| Maximum electronics housing temperature | 160 °F / 71 °C |
| Zero shift due to electronics housing temperature change | ±0.05 % full scale / °F maximum or ±0.10 % full scale / °C |
| Sensitivity shift due to temperature change | ±0.02 % full scale / °F maximum or ±0.04 % full scale / °C |
| Pressure ranges psi | 0…3,000 / 0…5,000 / 0…7,500 / 0…10,000 | 0…250 / 0…350 / 0…500 / 0…700 |
| Pressure ranges kg/cm² | 0…200 / 0…350 / 0…500 / 0…700 |
| Pressure ranges MPa | 0…20 / 0…35 / 0…50 / 0…70 |
| Key features | Four selectable pressure ranges, external range selection, internal 80 % shunt calibration, DyMax® coated wetted parts, proven sensor design |
