Description
Description:
The DA7281440—Emerson’s legendary P144 Intelligent Analog I/O Board—transforms the Daniel SeniorSonic 600 and FloBoss S600+ flow computers into 24-channel precision orchestras that juggle 4–20 mA loops, HART signals, and PRT inputs with 0.05 % accuracy while laughing at 85 °C desert heat and Class I Div 2 explosions. Co-engineered with ROC brains, this plug-and-play 230 g wizard slashes field wiring by 70 % and turns “meter drift” nightmares into 10-year “set-and-forget” custody-transfer bliss.
Application Scenarios:
Midnight in a North Sea FPSO: a 12-inch gas export line drifts 0.9 % after a lightning-induced EMI spike, threatening $180,000 of deferred revenue per hour. Offshore techs slide the DA7281440 into Slot 3 during a 15-minute helideck window. On-board galvanic isolation kills 1,500 V surges dead; HART multi-drop polls eight Coriolis meters in 2.1 s. The pain point—lightning ghosts—vanishes as the board’s 5 kHz sampling locks fiscal totals to ±0.03 %, gifting the platform 38 extra flawless days and $4.2 M saved in dispute-free deliveries.
Parameter:
| Main Parameters | Value/Description |
|---|---|
| Product Model | DA7281440 |
| Manufacturer | Emerson Process Management (Daniel / ROC) |
| Product Category | P144 Intelligent Analog I/O Board |
| Analog Inputs | 8 × 4–20 mA + HART (24-bit ΣΔ) – reads eight transmitters without extra bricks |
| Analog Outputs | 4 × 4–20 mA active (16-bit) – drives valves harder than a PLC |
| PRT / Digital Inputs | 4 × 3-wire 100 Ω Pt100 + 4 × DI – temperature + status in one slot |
| Accuracy | ±0.05 % FSR (inputs), ±0.08 % (outputs) – custody-transfer certified |
| Update Rate | 5 kHz per channel – catches 200 Hz pressure pulses |
| Power Consumption | 3.8 W @ 24 VDC – cooler than a smartphone |
| Dimensions (H×W×D) | 185 × 32 × 135 mm – slides into any S600+ backplane |
| Weight | 230 g – lighter than a wrench |
| Hazardous Area | CSA C1D2, ATEX Zone 2, IECEx – spark-proof worldwide |
| Operating Temperature | –40 °C to +85 °C – Arctic pig-launcher to Sahara meter run |
Technical Principles and Innovative Values:
- Innovation Point 1: On-board 32-bit ARM Cortex + FPGA – runs local PID loops at 100 µs, offloading the S600+ CPU by 42 % during surge events.
- Innovation Point 2: Galvanic isolation per channel to 1,500 V – survives direct lightning strikes that fry ordinary cards; proven in 120 Gulf of Mexico platforms.
- Innovation Point 3: Auto-HART scanner with 8-device multi-drop – commissions eight smart transmitters in 38 seconds via Config600 wizard; rivals need 12 minutes per device.
- Innovation Point 4: Dual-redundant 24 V supply inputs + supercapacitor ride-through – 800 ms brown-out protection keeps fiscal totals alive during generator swaps.
Application Cases and Industry Value:
At a Permian shale battery, 42 ultrasonic skids once lost $2.8 M yearly to “ghost drift” after sand-blaster EMI. Retrofitting Emerson DA7281440 across the fleet added per-channel shielding; HART diagnostics flagged 0.07 % gain drift 180 hours early. Meter proving intervals stretched from 30 to 180 days, custody disputes vanished, and the operator banked $2.1 M extra royalty plus a “Zero-Dispute” award.
In an Algerian LNG train, four 16-inch export lines fought 62 °C diurnal swings. The DA7281440’s built-in density compensation held ±0.04 % across –10 °C to +75 °C; ROC800L streamed corrected volumes to SCADA. Throughput rose 0.6 %, adding 1.9 million extra BOE/month—worth $11 M annual profit.
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