DatasheetDynisco PT435A Melt Pressure Transducer
The Dynisco PT435A has been specifically designed for applications with extremely limited installation space. It provides the high measurement accuracy of the proven PT420A and PT422A models while allowing installation in locations where conventional transducers cannot be easily mounted.
Its unique design incorporates a free-spinning jam nut and an exposed bendable capillary tube capable of a minimum bend radius of only 1/16 inch. This makes the PT435A ideal for compact extrusion systems and other installations where space is restricted. The rugged stainless-steel construction ensures excellent long-term stability and reliable pressure measurement at elevated process temperatures.
| Technical Specifications | |
|---|---|
| Pressure Ranges | 0–500 psi, 0–750 psi, 0–1,000 psi, 0–1,500 psi, 0–3,000 psi, 0–5,000 psi, 0–7,500 psi, 0–10,000 psi, 0–15,000 psi, 0–20,000 psi, 0–30,000 psi |
| Accuracy | ±0.25% FSO (±0.5% FSO for 500, 750 and 1,000 psi ranges) |
| Repeatability | ±0.1% FSO (±0.2% FSO for 500, 750 and 1,000 psi ranges) |
| Mounting Torque | 500 inch-lbs maximum |
| Maximum Pressure | 2 × full scale or 35,000 psi, whichever is less |
| Material in Contact with Media | 15-5 PH stainless steel, Dymax® coated |
| Weight | 1.5 lbs |
| Configuration | Four active arm bonded Wheatstone bridge strain gauge |
| Input Resistance | 345 Ω minimum |
| Output Resistance | 350 Ω ±10% |
| Zero Balance | ±5% FSO |
| Full Scale Output | 3.33 mV/V ±2% |
| Excitation | 10 VDC recommended, 12 VDC maximum |
| Internal Shunt Calibration | 80% FSO ±0.5% |
| Insulation Resistance | 1,000 MΩ at 50 VDC |
| Maximum Diaphragm Temperature | 750°F (450°C) |
| Diaphragm Zero Shift | 15 psi/100°F typical (27 psi/100°C) |
| Maximum Electronics Temperature | 250°F (121°C) |
| Electronics Zero Shift | ±0.01% full scale/°F max. (±0.02% full scale/°C) |
| Electronics Sensitivity Shift | ±0.005% full scale/°F max. (±0.01% full scale/°C) |
