DatasheetDynisco EPR3 Push Rod Melt Pressure Sensor
The Dynisco EPR3 is a high-temperature melt pressure transducer utilizing push-rod technology and was developed as an alternative to the PT420 and PT460 filled sensor series. The mechanical push-rod measuring principle makes the sensor particularly suitable for applications where the use of a fill fluid is not desirable.
Typical applications include food and medical product extrusion as well as photographic film manufacturing. The robust stainless-steel construction provides reliable pressure measurement at process temperatures up to 400 °C and pressure ranges up to 700 bar.
| Technical Specifications | |
|---|---|
| Pressure Ranges | 0–100 bar, 0–200 bar, 0–350 bar, 0–500 bar, 0–700 bar |
| Accuracy | ±0.5% FSO |
| Repeatability | ±0.2% FSO |
| Recommended Mounting Torque | 100 in-lbs |
| Maximum Mounting Torque | 250 in-lbs |
| Maximum Pressure | 150% of full scale |
| Material in Contact with Media | 17-4 PH stainless steel, Dymax® coated |
| Weight | 13.25 oz |
| Configuration | Four-arm bonded foil Wheatstone bridge strain gauge |
| Input Resistance | 345 Ω minimum |
| Output Resistance | 350 Ω ±10% |
| Excitation Voltage | 10 VDC recommended, 12 VDC maximum |
| Internal Shunt Calibration | 80% FSO ±1.0% |
| Insulation Resistance | 1,000 MΩ at 50 VDC |
| Maximum Diaphragm Temperature | 400 °C |
| Maximum Electronics Temperature | 121 °C |
| Diaphragm Zero Shift | ±1.0% FS/100°F (±2.0% FS/100°C) |
| Diaphragm Sensitivity Shift | ±1.0% FS/100°F (±2.0% FS/100°C) |
| Electronics Zero Shift | ±1.0% FS/100°F (±2.0% FS/100°C) |
| Electronics Sensitivity Shift | ±1.0% FS/100°F (±2.0% FS/100°C) |
