DatasheetDynisco PT4194 Series with Auto-Zero Functionality
The Dynisco PT4194 Series is a melt pressure transmitter for food and medical applications requiring simple installation, high repeatability and reliable pressure measurement. The food-grade oil fill meets FDA requirements according to 21 CFR 178.3620, 21 CFR 172.878 and 21 CFR 573.680.
The PT4194 provides an industrial 4–20 mA output signal for direct connection to DCS and PLC systems. The integrated Auto-Zero functionality enables simple commissioning without manual zero or span potentiometers. Optional thermocouple or RTD configurations are available for melt temperature measurement.
| Technical Specifications | |
|---|---|
| Output Signal | 4–20 mA |
| Input Voltage | 14–36 VDC |
| Accuracy | ±0.5% FSO |
| Repeatability | ±0.2% FSO |
| Configuration | Four-arm bonded foil Wheatstone bridge strain gauge |
| Load Resistance | 0–1,100 Ω |
| Overpressure | 2 × FSO |
| Internal Shunt Calibration | 80% FSO ±0.5% |
| Insulation Resistance | 1,000 MΩ at 50 VDC |
| Maximum Diaphragm Temperature | 527 °F (275 °C) |
| Diaphragm Zero Shift | 36 psi/100 °F typical, 65 psi/100 °C |
| Electronics Operating Temperature | -20 °F to 185 °F (-25 °C to 85 °C) |
| Electronics Zero Shift | ±0.05% FS/°F max., ±0.10% FS/°C max. |
| Mounting Torque | 500 inch/lbs maximum |
| Standard Wetted Parts | DyMax™ coated 15-5 PH stainless steel |
| Fill Material | Oil fill meeting FDA requirements 21 CFR 178.3620, 21 CFR 172.878 and 21 CFR 573.680 |
