Emerson Redundant Power Supply Module KJ4001X1-BA3 Power Controller 2 Wide Carrier
The KJ4001X1-BA3 is a high-performance, industry-proven pressure transmitter from Emerson's Rosemount™ 3051S Series. Designed for demanding process measurement and control applications, it provides exceptional accuracy, reliability, and stability for measuring gauge or absolute pressure. Utilizing advanced sensor technology and diagnostics, it is engineered to deliver precise and reliable data in critical processes across industries such as oil & gas, chemical, power generation, and refining. Its robust design ensures long-term performance in harsh environments with temperature extremes, vibration, and corrosive media.
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Superior Performance: Offers high accuracy (up to ±0.025% of calibrated span) and long-term stability, minimizing measurement drift and reducing recalibration needs.
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Advanced Sensor Technology: Features a single-crystal silicon sensor with a digital, capacitance-based design for excellent repeatability and resistance to shock, vibration, and static pressure effects.
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Comprehensive Diagnostics: Embedded Heartbeat™ Diagnostics enable predictive maintenance by monitoring transmitter health, process health, and detecting issues like sensor blockage or drift.
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Robust Communication: Supports industry-standard HART® 7 protocol for easy configuration, calibration, and integration with control and asset management systems (e.g., AMS Device Manager).
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Exceptional Reliability: Built with proven, welded-all-sensor construction and no internal seals or O-rings to the process, ensuring outstanding durability and leak integrity.
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Global Safety Certifications: Certified for use in hazardous areas (ATEX, IECEx, FM, CSA) and SIL 2/3 capable for safety instrumented systems (SIS).
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Easy Installation & Configuration: Features a universal mounting design, local operator interface (LOI) with plain text menus, and quick-start wizards for simplified setup.
KJ4001X1-BA3 Materials and Applications
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Process Wetted Parts: 316L SST, Hastelloy® C-276, or other exotic alloys (depending on specific trim).
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Housing: Aluminum with epoxy-polyester powder coat or optional 316 SST.
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Sensor: Single-crystal silicon.
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Isolation Diaphragms: 316L SST.
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Fill Fluid: Silicone oil or inert perfluorinated fluid (for corrosive media).
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Oil & Gas (wellhead pressure, pipeline monitoring, separators)
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Chemical & Petrochemical (reactor pressure, distillation column control)
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Power Generation (boiler pressure, feedwater control, turbine monitoring)
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Refining (critical pressure loops in FCCUs, hydrocrackers)
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Pharmaceutical & Biotechnology (fermenter pressure, clean utility monitoring)
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General industrial process pressure measurement and control.
KJ4001X1-BA3 Key Parameters
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KJ4001X1-BA3 (Rosemount™ 3051S)
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0 to [Specific Range] * (e.g., 0-100 psi, 0-400 bar)
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±0.025% of calibrated span (typical)
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±0.125% of URL per 10 years (maximum)
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4-20 mA DC with HART® 7 digital communication
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10.5 to 45 V DC (loop powered)
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1/2" NPT female, or other as specified (e.g., 1/4" NPT, 1/2" BSP, Flange)
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1/2" NPT conduit entry with M20 or 1/2" NPT adapters available
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316L SST standard (C-276, Monel®, others optional)
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Silicone oil standard (Inert Fluorinated fluid optional)
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Display / Local Interface
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Integral LCD with local operator interface (LOI) - Optional
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Ambient Temperature Limits
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-40°C to +85°C (-40°F to +185°F)
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Process Temperature Limits
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-40°C to +120°C (-40°F to +248°F) with standard fill fluid
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Up to 4000 psi (276 bar) or higher, depending on model
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ATEX, IECEx, FM, CSA, SIL 2/3 capable, PED, CRN
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IP66, IP67, Type 4X (NEMA 4X)
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Power Specifications:
LocalBus power rating 12 VDC at 75 mA Bussed
Field Power rating 24 VDC at 150 mA
Field circuit rating 24 VDC at 5 mA/channel
Environmental Specifications
| Ambient Temperature |
-40 to 70o C |
| Shock |
10g ½ Sinewave for 11 msec |
| Vibration |
1mm Peak to Peak from 5 to 16Hz; 0.5g from 16 to 150Hz |
| Airborne Contaminants |
ISA-S71.04 –1985 Airborne Contaminants Class G3 |
| Relative Humidity |
5 to 95% Non-Condensing IP 20 Rating |
| Terminal block key position |
D4 |
Specifications:
| Brand: |
EMERSON |
| Condition: |
New without factory packaging |
| Model: |
KJ4001X1-BA3 |
| Revision: |
REV C |
| Type: |
Interface Module |
| Shipping Weight: |
0.80 lbs |
| Shipping Dimensions: |
9.00 x 5.50 x 2.00 in |
| SKU: |
D588762 (SFA) |
| Category: |
Controls |
Good Service in WTL:
> We offer high quality, fast delivery, competitive price for Rosemount.
> Please send your RFQ to get the latest price.
> Normally, we will ship the items in 1-2 weeks after receive the payment.
> We can ship to you by UPS/DHL//EMS/Fedex. Please contact us and we will use your preferred ways.
> We have a large stock and the prices are variable, so sometimes the prices we post are not accurate. If needed, please contact us for specific prices.
WTL is not liable for any personal injury or property damage resulting from the use of this equipment. It is
buyer's responsibility as to the safe handling & operation of this equipment and to verify equipment is
compliance to their machinery.


