Yokogawa Differential Pressure Transmitter, EJX110A
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EJX110A Differential Pressure Transmitter

Brand: Yokogawa Electric Corporation
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The high performance differential pressure transmitter EJX110A features single crystal silicon resonant sensor and is suitable to measure liquid, gas, or steam flow as well as liquid level, density and pressure. 

EJX110A outputs a 4-20 mA DC signal corresponding to the measured differential pressure. Its highly accurate and stable sensor can also measure the static pressure which can be shown on the integral indicator or remotely monitored via BRAIN or HART communications. 

Other key features include quick response, remote set-up using communications, diagnostics and optional status output for pressure high/low alarm. 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.
Features
  • ± 0.04% Accuracy (0.025% Accuracy option available)
  • ± 0.1% per 15 years Stability
  • 90 ms Response Time
  • 3,600 psi MWP
  • Exida and TUV SIL2 / SIL3 Certified
  • Local Parameter Setting (LPS)

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Specifications

Brand

Span - Minimum

  • psi: 73 (MPa: 0.5, bar: 5)

BSP Connection

  • 1/2” BSPT Female
  • 1/4” BSPT Female

Communication

  • BRAIN
  • FOUNDATION Fieldbus
  • HART
  • PROFIBUS PA

Length

  • 1.33” (34 mm) - Standard Long Vent
  • 4.6” (119 mm) - Total Long Vent

Display

  • 10-Segment - User Configurable, Signal Characterizer for 4-20 mA Output
  • 5-Digits Numerical Display
  • 6-Digit Unit Display
  • Bar Graph
  • LCD Display

Operating Temperature

  • -20° to 80° C (-4° to 176° F)

Adjustment Type

  • External Zero Adjustment Screw
  • Push Button

Gasket Material

  • Fluorinated Rubber - Process Connector Gasket
  • PTFE Teflon - Process Connector Gasket, Capsule Gasket
  • Teflon-Coated 316L Stainless Steel - Capsule Gasket

Process Connection Material

  • ASTM CF-8M
  • Hastelloy C-276
  • Monel
  • Super Duplex Stainless Steel

Alarm

  • Down-Scale: -5 %, 3.2 mA DC or Less
  • Up-Scale: 110 %, 21.6 mA DC or more

Overpressure & Static Pressure Limits

  • ± 0.03 % of URL up to psi: 3,600 (kPa: 25,000, bar: 250)

Pressure Type

  • Absolute
  • Differential
  • Gauge

Enclosure, Body Material

  • Aluminum Alloy - Copper Cast
  • ASTM CF-8M Stainless Steel

Mounting Position Effect

  • Tilting up to 90° will cause Zero Shift up to 0.4 kPa

Electrical Protection

  • Lightning Protection

Approvals & Certifications

  • Leak Test
  • Material Certificate
  • Pressure Test
  • SIL 2 Capability for Single Transmitter Use, SIL 3 Capability for Dual Transmitter Use, IEC 61508: 2000
  • TÜV (Technischer Uberwachungsverein)

Fill Material

  • Fluorinated Oil - Fill Fluid
  • Silicone - Fill Fluid

Approvals & Certifications

  • ATEX Flameproof & Intrinsically Safe
  • CE
  • CSA Explosion-proof & Intrinsically Safe
  • EMC EN 61326-1 Class A, EN 61326-2-3, EN 61326-2-5
  • FM Explosion-proof & Intrinsically Safe
  • IECEx Intrinsically Safe & Flameproof
  • NAMUR NE43
  • PED 2014/68/EU
  • PED 97/23/EC

NACE & NIST

  • NACE MR-0103

O-Ring Material

  • Buna-N - Cover O-Ring
  • Fluororubber - Cover O-Ring

Diaphragm Material

  • Hastelloy C-276

Supply Pressure - Maximum

  • psi: 2,300 (MPa: 16, bar: 160) - for Capsule F, L, M, H & V
  • psi: 3,600 (kPa: 25,000, bar: 250) - for Capsule M, H & V

Temperature Effect

  • ± (0.04 % of Span + 0.009 % of URL) Per 28° C (50° F) for Capsule M - Ambient Temperature Effects
  • ± (0.04 % of Span + 0.0125 % of URL) Per 28° C (50° F) for Capsule H, V - Ambient Temperature Effects
  • ± (0.055 % of Span + 0.18 % of URL) Per 28° C (50° F) for Capsule F - Ambient Temperature Effects

Flange Material

  • ASTM CF-8M - Cover Flange
  • Hastelloy C-276 - Cover Flange
  • Monel - Cover Flange
  • Super Duplex Stainless Steel - Cover Flange

Drain, Vent Valves & Plug

  • 316 Stainless Steel - Name Plate & Tag
  • Hastelloy C-276
  • Monel
  • Super Duplex Stainless Steel

Input Impedance

  • 10 kiloohms or more at 2.4 kHz - Input Impedance of Communicating Device

Fluid

  • Liquid & Gas
  • Steam

Burst Pressure

  • psi: 10,000 (kPa: 68,950, bar: 689)
  • psi: 6,800 (kPa: 46,880, bar: 468)

Ambient Temperature Range

  • -30° to 80° C (-22° to 176° F) - with LCD Display
  • -40° to 85° C (-40° to 185° F)

Environmental Protection

  • IP66
  • IP67
  • NEMA 4X

Wetted Materials

  • 316L Stainless Steel
  • Hastelloy C-276 - Capsule
  • Monel - Capsule
  • Tantalum - Capsule

Diagnostics

  • Configuration Error - Self Diagnostics
  • CPU Error - Self Diagnostics
  • Hardware Failure - Self Diagnostics
  • Heat Trace Monitoring - Advanced Diagnostics
  • Impulse Line Blockage Detection - Advanced Diagnostics
  • Over-Range Error for Differential Pressure, Static Pressure & Capsule Temperature - Self Diagnostics

NPT Connection

  • 1/2” NPT Female
  • 1/4” NPT Female

Enclosure Finish

  • Polyurethane Mint Green Paint (Munsell 5.6BG 3.3/2.9 or its Equivalent)

Power Supply Effect

  • ± 0.005 % Per Volt (From 21.6 to 32 Vdc, 350 ohms)

Output

  • 10.5-30 Vdc at 120 mA DC, Max.
  • 3.6-21.6 mA
  • 3.8-20.5 mA - Output Signal Limits

Output Signal

  • 4-20 mA - 2-Wire

Humidity

  • 0 to 100 % Relative Humidity - Ambient Humidity

Cable Material

  • Polyethylene Insulated PVC Sheathed

Zero Offset

  • External Zero is Continuously Adjustable with 0.01 % Incremental Resolution of Span

Update Time

  • 360 milliseconds - Static Pressure
  • 45 milliseconds - Differential Pressure

Stability

  • ± 0.1 % of URL Per 10-Years (All Normal Operating Condition, Including Overpressure Effects) - M, H & V Capsules
  • ± 0.1 % of URL Per Year (All Normal Operating Condition, Including Overpressure Effects) - F Capsule

Process Temperature

  • -40° to 120° C (-40° to 248° F)

Pressure Range

  • Inches WC: -2,000 to 2,000
  • kPa: -500 to 14,000
  • mbar: -5,000 to 140,000
  • mmWC: -10,000 to 10,000
  • psi: -72.52 to 2,031

Vibration Effect

  • < ± 0.1 % of URL
  • < 0.1 % of URL

Mounting Position

  • Horizontal
  • Universal
  • Vertical

Static Pressure Effect

  • ± 0.02 % of URL Per psi: 1,000 (MPa: 6.9, bar: 69) for M Capsule - Effect on Zero
  • ± 0.028 % of URL Per psi: 1,000 (MPa: 6.9, bar: 69) for H, V Capsule - Effect on Zero
  • ± 0.075 % of Span Per psi: 1,000 (MPa: 6.9, bar: 69) for F, M, H & V Capsules - Span Effects
  • ± 0.1 % of URL Per psi: 1,000 (MPa: 6.9, bar: 69) for F Capsule - Effect on Zero

Supply Voltage

  • 10.5-30 Vdc - for Intrinsically Safe, Typical N, or Non-Incendive
  • 10.5-32 Vdc - for Lightning Protector
  • 10.5-42 Vdc - for General Use & Flameproof Typical
  • 16.6 Vdc - for Digital Communications, BRAIN & HART
  • 24 Vdc, up to 550 ohms Load

Electrical Connectors

  • 1/2” NPT Female
  • G 1/2” Female
  • M20 Female

Nut & Bolt Material

  • 316L Stainless Steel
  • 660 Stainless Steel
  • B7 Carbon Steel

Load

  • 0 to 1,290 ohms - for Operation
  • 0.22 μF or Less - Load Capacitance
  • 250 to 600 ohms - for Digital Communication
  • 3.3 MH or Less - Load Inductance

Distance

  • 0 to 2 Kilometers (1.25 Miles) - Communication Distance

Response Time

  • 150 milliseconds
  • 90 milliseconds

Mounting

  • 2” Pipe Mounting Bracket

Damping Adjustment

  • 0 to 100 seconds

Accuracy

  • ± (0.002 + 0.0019 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability) - for M Capsule
  • ± (0.005 + 0.00125 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability) - for V Capsule
  • ± (0.005 + 0.0049 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability) - for H Capsule
  • ± (0.015 + 0.01 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability) - for F Capsule
  • ± 0.04 % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability) - for F Capsule
  • ± 0.12 % of Span at 1: 1 to 5: 1 Rangedown - Total Accuracy (M Capsule)
  • ± 0.25 % of Span at 5: 1 Rangedown - Total Accuracy (M Capsule)

Documentation

Data Sheets

Brochure

Document

Manual

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