• Model-EJX440A-Gauge-Pressure-Transmitter
The high performance gauge pressure transmitter EJX440A features single crystal silicon resonant sensor and is suitable to measure liquid, gas, or steam pressure.

The EJX440A outputs a 4 to 20 mA DC signal corresponding to the measured pressure. It also features quick response, remote setup and monitoring via BRAIN or HART communications, and diagnostics. The multi-sensing technology provides the advanced diagnostic function to detect such abnormalities as an impulse line blockage or heat trace breakage.

FOUNDATION Fieldbus and PROFIBUS PA protocol types are also available.

All EJX series models in their standard configuration, with the exception of the Fieldbus and PROFIBUS types, are certified by TÜV as complying with SIL 2 for safety requirement.

Modify Configuration

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Item #
Item #
Model
Output Signal
Measurement Span (Capsule)
Wetted Parts Material 1
Process Connections (High Side)
Bolts and Nuts Material
  • C: 660 SST
  • G: 316L SST
  • J: B7 carbon steel
Installation
Amplifier Housing
  • 1: Cast aluminum alloy
  • 2: ASTM CF-8M stainless steel
  • 3: Cast aluminum alloy with corrosion resistance properties
Electrical Connection
Integral Indicator
  • D: Digital indicator
  • E: Digital indicator with the range setting switch (push button)
  • N: None
Mounting Bracket
Select Approval
  • CF1: Canadian Standards Association (CSA) - Explosionproof Approval
  • CS1: Canadian Standards Association (CSA) - Intrinsically safe Approval
  • CU1: Canadian Standards Association (CSA) - Combined CF1 and CS1
  • FF1: FM Explosionproof Approval
  • FS1: FM Intrinsically safe Approval
  • FU1: FM Combined FF1 and FS1
  • KF22: ATEX - Flameproof Approval
  • KS21: ATEX - Intrinsically safe Approval
  • KU22: ATEX - Combined KF22, KS21 and ATEX Intrinsically safe Ex ic
  • None
  • SF2: IECEx Scheme - Flameproof Approval
  • SU21: IECEx Intrinsically safe and Flameproof Approval
  • V1U1: IECEx Scheme - Combination of KU22, FU1 and CU1
Painting - Color Change (Optional)
  • None
  • P: Painting: Color change (Amplifier cover only)
  • PR: Painting: Color change (Amplifier cover and terminal cover, Munsell 7.5 R4/14)
Status Output (Optional)
  • AL: Transistor output (sink type); Contact rating: 10.5 to 30 V DC, 120 mA DC(max ) Low level: 0 to 2 V DC
  • None
Oil-prohibited Use (Optional)
  • K1: Oil-prohibited Use - Degrease cleansing treatment
  • K2: Oil-prohibited Use - Degrease Cleansing Treatment with Fluorinated Oilfilled Capsule
  • K3: Capsule fill fluid - Fluorinated oil filled In capsule
  • K5: Oil-prohibited Use with dehydrating treatment - Degrease cleansing and dehydrating treatment
  • K6: Oil-prohibited Use with dehydrating treatment - Degrease cleansing and dehydrating treatment and fluorinated oilfilled capsule
  • None
Calibration Unit (Optional)
  • D1: P calibration (psi unit)
  • D3: bar calibration (bar unit)
  • D4: M calibration (kgf/cm2 unit)
  • None
Output Limits and Failure Operation (Optional)
  • C1: Output limits and failure operation - Failure alarm down-scale: Output status at CPU failure and hardware error is -5%, 3.2mA DC or less
  • C2: Output limits and failure operation - NAMUR NE43 Compliant (Failure alarm down-scale: Output status at CPU failure and hardware error is -5%, 3.2 mA DC or less)
  • C3: Output limits and failure operation - NAMUR NE43 Compliant (Failure alarm up-scale: Output status at CPU failure and hardware error is 110%, 21.6 mA or more)
  • None
Gold-plated capsule gasket (Optional)
  • GS: Gold-plated 316L SST capsule gasket. Without drain and vent plugs
  • None
Optional Specification
  • A: Lightning protector
  • A1: Gold-plated diaphragm
  • CB: Data configuration at factory - Data configuration for BRAIN communication type (Software damping)
  • HC: 316 SST Exterior Parts (316 SST zero-adjustment screw and setscrews)
  • HE: Fluoro-rubber O-ring (All O-rings of amplifier housing. Lower limit of ambient temperature: –15°C (5°F))
  • M01: Material certificate - Cover flange
  • N4: Wired tag plate (316 SST tag plate wired onto transmitter)
  • PE3: European Pressure Equipment Directive (PED 97/23/EC - Category III, Module H, Type of Equipment: Pressure Accessory-Vessel, Type of Fluid: Liquid and Gas, Group of Fluid: 1 and 2; Lower limit of ambient and process temperature: -29°C
  • X2: Painting - Coating change (Anti-corrosion coating)
  • 1 Be very careful with highly corrosive process fluids such as hydrochloric acid, sulfuric acid, hydrogen sulfide, sodium hypochlorite, and high-temperature steam (150°C [302°F] or above). Contact Yokogawa for detailed information of the wetted parts material
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