DatasheetDynisco SPX-T Series Model 3391
The Dynisco SPX-T 3391 is a smart 4…20 mA pressure transmitter with button seal flange mounting and integrated temperature compensation. The transmitter is designed for applications requiring high measurement accuracy, stable process values and easy installation. The large diaphragm and mounting flange make the sensor especially suitable for flange-mount configurations.
Temperature compensation is based on an RTD measurement and significantly reduces temperature-related drift. In combination with DynaLarity™ technology, process effects on the sensor are additionally linearized. As a result, temperature-related drift is reduced by up to 80 % and accuracy is improved by more than 60 % compared with other sensors. No re-zeroing is required after temperature changes following installation.
The SPX-T 3391 is available for pressure ranges from 500 psi to 10,000 psi and offers accuracy down to ±0.15 % FS depending on the pressure range. In addition to the analog 4…20 mA output, HART™ communication is included as standard. Optional temperature outputs are available as RTD or 4…20 mA. The rugged welded electronics housing and DyMax™ coated 15-5 PH stainless steel diaphragm make the transmitter suitable for demanding industrial applications.
| Type | Smart pressure transmitter with temperature compensation |
|---|---|
| Series | Dynisco SPX-T Series |
| Model | SPX-T 3391 |
| Mounting type | Button seal flange mount |
| Application | Precise melt pressure measurement with temperature compensation in industrial processes |
| Voltage input | 13…32 VDC; IS and EX versions 13…30 VDC |
| Analog output | 4…20 mA; pressure standard, temperature optional |
| Digital output | HART™ |
| Accuracy | ±0.15 % FS for ≥3M | ±0.25 % FS for 1.5M | ±0.50 % FS for <1.5M |
| Repeatability | ±0.1 % FS |
| Electronics ambient temperature | 70 °F / 20 °C |
| Electronics operating temperature | -20…185 °F / -29…85 °C |
| Electronics compensated temperature range | 70…185 °F / 20…85 °C |
| Snout operating temperature | 32…752 °F / 0…400 °C |
| Snout compensated temperature range | 70…752 °F / 20…300 °C |
| Overload pressure rating | 1.5 × FS |
| Pressure range | 500…10,000 psi |
| Rangeability | 6:1 turndown |
| Load resistance | 250 Ω at 18 VDC; 500 Ω at 23 VDC |
| Diaphragm temperature limit | 752 °F / 400 °C |
| Mounting torque | 125 inch/lbs, max. |
| Wetted parts | DyMax™ coated 15-5 PH stainless steel diaphragm |
| Net weight | Typical 4 lbs / 1.8 kg |
| Display | Optional SPXD loop-powered display available |
| Approvals and certifications | CE, CE-PED |
| FM approval EX | Explosion Proof: Class I, Div 1, Groups A, B, C, D | Dust Ignition Proof: Class II & III, Div 1, Groups E, F, G |
| CSA approval EX | Explosion Proof: Class I, Div 1, Groups B, C, D | Dust Ignition Proof: Class II & III, Div 1, Groups E, F, G |
| ATEX approval IS | II 1 G Ex ia IIC |
| Temperature output | ZZ: no temperature output | TA: 3-wire RTD | TB: 4…20 mA output |
| Process connection | 48: flat faced flange |
| Capillary length | AA: no flex | DD: 18″ / 46 cm | FF: 30″ / 76 cm |
| Snout length | AW: 3″ / 7.6 cm | CE: 6″ / 15 cm | DP: 9″ / 23 cm | FE: 12.5″ / 32 cm | GH: 15″ / 38 cm |
| Electrical connections | AC: PT1H-10-6P connector | AG: PT1H-12-8P connector | CA: 1/2-14 NPT conduit with 42″ leads |
| Communications | A: HART not included with zero and span | B: HART with zero and span | C: HART with zero, span and turndown | F: HART without zero and span |
| Key features | Large diaphragm, flange mounting, temperature compensation, DynaLarity™ technology, HART™ communication, rugged welded electronics housing |
