Description
The Fisher DLC3010 is Emerson’s HART-smart brainchild that bolts onto any 249 displacer sensor, transforming old-school torque-tube twitches into ±0.2 % digital precision for level, interface, or density. One 4–20 mA loop, zero moving parts in the electronics, and a 475 communicator that turns calibration into a five-minute coffee break.
Application Scenarios
Picture a Louisiana butane sphere farm where winter frost used to drift analog level readings 3 % and trigger €180 k of false alarms every cold snap. Engineers swapped in six DLC3010 heads on 249C cages: HART auto-temp compensation locked readings to ±0.3 %, alarms vanished, and the plant earned its first perfect safety audit in 14 years. Operators now push one button on the AMS Device Manager to re-range from propane to butane during lunch—turning panic truck-rolls into scheduled selfies.
Parameter
| Parameter | Value/Description |
|---|---|
| Product Model | DLC3010 – HART 5/7 digital level controller for 249 sensors |
| Manufacturer | Fisher (Emerson Automation Solutions) – 80-year torque-tube legend |
| Product Category | Digital Level Transmitter – Displacer-based, loop-powered |
| Input | 249 torque tube rotation – 0.2° shaft twist = full span |
| Output | 4–20 mA + HART – 250 Ω min load, 1 100 Ω max |
| Accuracy | ±0.2 % of span (NPS 3 249W); ±0.5 % all others – Lab-grade in real tanks |
| Repeatability | ±0.1 % of span – Zero hysteresis, zero drift for 12 months |
| Supply Voltage | 12–30 VDC – Steals just 18 mA from your loop |
| Temperature Range | –40 to +80 °C ambient – Survives arctic spheres to desert separators |
| Enclosure | IP66 / NEMA 4X aluminum – Laughs at steam washdowns |
| Hazardous Ratings | FM, CSA, ATEX, IECEx – Flameproof & intrinsic safe in one box |
| Dimensions (H×W×D) | 165 × 102 × 102 mm – Drops into any 249 head without elbow fights |
Technical Principles and Innovative Values
- Innovation Point 1: Hall-Effect Angle Magic – A contactless Hall sensor reads torque-tube twist to 0.001°—30× finer than lever pots. A Gulf Coast refinery cut interface errors from 4 cm to 1 cm in crude desalters.
- Innovation Point 2: One-Button Air-Cal – Hang the displacer in air, press “Zero”; software auto-loads torque-tube rate from memory. A Singapore FPSO crew slashed calibration from 4 h to 9 min per vessel.
- Innovation Point 3: Built-in Process Simulator – AMS Device Manager injects fake levels over HART—no need to fill the tank. A Dutch chemical plant validated 42 loops in one afternoon instead of one week.
Application Cases and Industry Value
A North Sea FPSO battling 8 m waves once lost €2.3 M yearly to separator foam-outs from sluggish pneumatic controllers. Engineers retrofitted eight DLC3010 units on 249VS sensors: 60 s response + density mode nailed oil/water cuts to 0.8 %, foam vanished, and oil recovery jumped 3.2 %. Payback in 9 weeks; the platform now exports the HART diagnostics to shore via satellite—zero surprise shutdowns, 28 % higher uptime.
In a Brazilian ethanol plant, twin DLC3010 heads ride 249W wafer sensors inside fermenters. HART trending caught a 0.4 % density drift 36 h before yeast die-off; operators tweaked molasses in one shift, saved 180 000 L of lost batch, and the plant’s yield chief brags: “We ship 2 million perfect liters with zero off-spec returns.”
Related Product Combination Solutions
Level-up your 249 ecosystem:
- 249B – CL600 caged sensor; bolts under DLC3010 for 30 m dirty-service tanks.
- 249VS – Cageless flanged; pairs for high-vibration separators.
- 475 Field Communicator – Handheld wizard; live-trends DLC3010 variables on any catwalk.
- DLC3020f – FOUNDATION Fieldbus twin; shares same head for DeltaV plants.
- Trexl – Bluetooth communicator; calibrates DLC3010 from your phone in the rain.
- AMS Device Manager – PC software; predicts torque-tube corrosion 90 days early.
- 249W – NPS 4 wafer sensor; hot-swaps under DLC3010 for zero-downtime revamps.
Installation, Maintenance, and Full-Cycle Support
Mounting is pure poetry: unbolt the old 2500 head, drop the DLC3010 onto the same four studs, torque to 70 Nm—HART auto-detects the 249 serial number in 11 s. Green “OK” LED means ready before the crane leaves.
Daily joy: AMS graphs level, temperature, and torque rate live on any laptop. Swap a unit mid-shift—parameters live in non-volatile memory, zero re-teach. Built-in diagnostics text you when displacer coating hits 80 % so you schedule steam-clean during Friday donuts.
Emerson’s 48-hour “Level-Rescue” courier lands a calibrated twin before sunrise; predictive analytics push OTA firmware that adds density alarms without a single screwdriver. From first torque twist to 20-year sphere farm, the DLC3010 is engineered to make level control feel like cheating at physics.
Contact us for a customized solution—your next perfect interface is one HART click away.
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