DatasheetDynisco SPX-T (3-Series) Smart Pressure Sensors
The Dynisco SPX-T (3-Series) is a smart 4–20 mA pressure transmitter range for general-purpose pressure measurement in hazardous locations. The sensors feature temperature compensation and DynaLarity™, a Dynisco technology that linearizes offset effects caused by process conditions.
Temperature compensation is based on an RTD measurement and compensates for temperature-related variations at the sensor. This increases accuracy and significantly reduces temperature-related drift compared with other sensors. These amplified transmitters eliminate the need for external signal conditioning and can be connected directly to DCS, PLC, computer and high-level control systems. An optional temperature output via RTD or 4–20 mA is available.
| Technical Specifications | |
|---|---|
| Output Signal | 4–20 mA, with optional HART™ |
| Input Voltage | 16–36 VDC standard; 16–30 VDC ATEX intrinsically safe |
| Accuracy 32XX | ±0.25% for pressure ranges ≥ 3,000 psi; ±0.50% at 1,500 psi; ±0.75% for pressure ranges < 1,500 psi |
| Accuracy 33XX | ±0.15% for pressure ranges ≥ 3,000 psi; ±0.25% at 1,500 psi; ±0.50% for pressure ranges < 1,500 psi |
| Repeatability | ±0.1% |
| Rangeability | 6:1 turndown |
| Overpressure | 1.5 × FSO |
| Load Resistance | 500 Ω at 24 VDC; 1,000 Ω at 36 VDC |
| Electronics Ambient Temperature | 70 °F (20 °C) |
| Electronics Operating Temperature | -29 °C to 85 °C |
| Electronics Compensated Temperature Range | 20 °C to 85 °C |
| Snout Compensated Temperature Range | 20 °C to 300 °C |
| Snout Operating Temperature | Models 3242, 3243, 3342, 3343: 0–400 °C Models 3290, 3291, 3390, 3391: 0–315 °C |
| Mounting Torque | 3242: 500 inch-lbf max.; 3243: 50 inch-lbf max.; 3342: 500 inch-lbf max.; 3343: 50 inch-lbf max.; 3290: 350 inch-lbf max.; 3291: 350 inch-lbf max.; 3390: 350 inch-lbf max.; 3391: 350 inch-lbf max. |
| Standard Wetted Parts | DyMax-coated 15-5 PH stainless steel |
| Approvals | ATEX/IECEx intrinsically safe, FM & CSA explosion-proof, additional approvals available |
| Safety Certification | SIL2 for pressure output and PL “c” for relay output |
