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Westlock Digital EPIC D281/D291
The Westlock Digital EPIC D281/D291 are premium flameproof (Ex db) intelligent rotary valve position transmitters with integrated solenoid valve (SOV) control, designed for Zone 1 / Division 1 hazardous areas. This all-in-one unit combines precise non-contact position feedback, HART® 7 communication, and direct valve control (ESD/PST) in a single, robust housing. The D281 uses a low-copper aluminum enclosure, while the D291 features 316 stainless steel for extreme corrosion resistance in offshore, chemical, and upstream oil & gas applications.
Features
1.Non-contact Position Feedback Design: Offers greater reliability and longer operational life, enhancing plant availability and reducing maintenance.
2.Ease of Commissioning: Simple push-button calibration and local digital display for quick setup.
3.Versatile & Globally Certified: Approved for use in hazardous environments, with end-of-travel sensors and a range of enclosure material options.
4.Advanced Configuration & Diagnostics: Utilizes the latest HART® communication protocol technology, with DD/FDT® DTM® for remote calibration and diagnostics.
5.Precise Input Sensors: Ensures accurate feedback and optimal performance.
Specifications
AGENCY APPROVALS | |
Area classification (ATEX/IEC) | Ex II 2 GD |
Ex db IIB+H2 T* Gb | |
Ex tb IIIC T**°C Db IP6X | |
Area classification (NEC/CEC) | Intertek ATM:103627517CRT-001 |
Cl. I, Div. 1, Groups C & D; T* | |
Cl. II, Div. 1, Groups E, F, and G; T* | |
Cl. I, Zone 1, AEx db / Ex db IIB+H2 T* Gb | |
Cl. I, Div. 2, Groups A, B, C & D; T* | |
Zone 21, AEx tb / Ex tb IIIC T* Db IP6X | |
Enclosure standards (ANSI/NEMA 250) | |
All enclosures | Type 4, 4X, IP66/67 |
TECHNICAL DATA | |
Transmitter Output | Polarity insensitive, two wire 4-20 mA, Namur NE43 |
Transmitter Operating Voltage | 9 VDC - 30 VDC |
STROKE | |
Rotary: | 30° to 210° Potentiometer |
30° to 270° Non-contact sensor | |
SWITCHES | |
Magnum SPDT hermetically sealed switches with rhodium contacts | |
Magnum, SPDT hermetically sealed switches with tungsten contacts | |
V3 mechanical switches, SPDT with gold-plated contacts | |
Pepperl + Fuchs model NJ2-V3-N | |
ENCLOSURES | |
D281 | Aluminum |
D291 | Stainless Steel |
Associated Products
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2247ABYN00022AAA-AR1
2247ABYN00022ADZ-AR1
2249ABYN00042AAA-AR2
2249ABYN00042ADZ-AR2
2249SBYN00044ADZ-AR1
2004NBY2A2M0200
2004NBY2A2M02CSU
2007NBY2B2M0200
2007SBY4B2M0400U
AccuTrak 2600 Series
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2645SBYN00022FAN-AR2
2645BYK00022FAN-00
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2647ABYN00022FAN-AR1
2647SBYN00022AAA-AR1
2647SBYN00022AAA-AR2
2649ABYN00022AAA-AR2
2649ABYN00022ADZ-AR2
2649ABYN00042ADZ-AR2
2649SBYN00022AAA-AR1
2649SBYN-CCJSV-01
Quantum 3000/3600 Series
3045RBYN000022AAA-AR1
3049SBYN00022AAA-AR1
3345RBYN0CS22FAN-AR1
3347ABYN00022ADZ-AR1
3347ABYN00022FAN-AR1
3347RBYN0CS22FAN-AR1
3347-S-BY-S-000-42FAN-AR1
3600NCMBY2M6XSO2600
Other Common Models
1040NBY2A2M0200
711NBY1A2M0900I2700U
811NBY2M9FIO5700UK
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