Dwyer 3100D-4-FM-1-1-LCD : Explosion-Proof Smart Differential Pressure Transmitter, Range 0-750" w.c., 4-20 mA / HART Communication Output Signal, ±0.075% FS (@ 20¡C), LCD Display
The Dwyer Instruments Series 3100 & 3100D smart pressure transmitters are high-performance, explosion-proof solutions designed for accurate pressure and level measurements in demanding industrial applications. These transmitters offer HART® communication, push-button configuration, and advanced sensor technology for superior accuracy and reliability.
Key Features:
- Explosion-Proof Design – Certified for Class I, Div 1, Groups A, B, C, and D hazardous locations.
- High Accuracy (±0.075% FS) – Ensures precise differential pressure and level measurement.
- HART® Communication – Digital connectivity for easy configuration and remote monitoring.
- Zero/Span Button Calibration – Field-configurable without external calibration tools.
- Wide Rangeability (100:1) – Supports various industrial applications with flexible pressure ranges.
- Fast Response Time (0.12s) – Ideal for critical process monitoring and automation.
- Temperature Compensation – Automatic adjustments for stable performance under changing environmental conditions.
- NEMA 4X (IP66) Enclosure – Built for harsh environments with excellent durability and moisture protection.
Applications:
- Flow Measurement – Monitor differential pressure in pipelines.
- Level Monitoring – Ideal for tanks, reservoirs, and industrial fluid control.
- Pump and Filter Monitoring – Ensure system efficiency and maintenance readiness.
- Critical Process Control – Maintain system integrity in high-risk environments.
Specifications
| Service | Compatible gases, steam, liquids or vapors. |
| Wetted Materials | 316L SS, fluoroelastomer. |
| Accuracy | ±0.075% FS (@ 20°C). |
| Rangeability | 100:1 turn down (0 to 6 in w.c. range is 20:1 turn down). |
| Stability | ±0.125% FSO/yr. |
| Temperature Limits | Process: -40 to 248°F (-40 to 120°C); Ambient: Without LCD: -40 to 185°F (-40 to 85°C); With LCD: -22 to 176°F (-30 to 80°C). |
| Pressure Limits | Max pressure: Range: -14.5 to 2000 psi; Burst pressure: 10000 psi. |
| Thermal Effect | ±0.125% span/32°C. |
| Power Requirements | 11.9-45 VDC. |
| Output Signal | 4-20 mA / HART Communication. |
| Response Time | 0.12 s. |
| Damping Time | 0.25 to 60 s. |
| Loop Resistance | Operation: 0 to 1500 Ω; HART® Communication: 250 to 500 Ω |
| Electrical Connection | Two 1/2ý female NPT conduit, screw terminal. |
| Process Connection | 1/4ý female NPT. |
| Display | Optional 5 digit LCD. |
| Enclosure Rating | NEMA 4X (IP66) and explosion-proof for Class I, Div I, Groups A, B, C and D. |
| Weight | 8.6 lb (3.9 kg). |
| Compliance | CE, FM. |
Datasheets
 |
Dwyer Series 3100D Catalog Page |
|
Dwyer Series 3100D Instruction Manual |
