Yokogawa Low Flow Transmitter, EJA115E
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EJA115E Low Flow Transmitter

Brand: Yokogawa Electric Corporation
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The low flow transmitter EJA115E is a differential pressure transmitter assembled with an integral orifice and excellent for very low flow measurement. It outputs a 4 to 20 mA DC signal corresponding to the measured flow.
 
Its 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 and self-diagnostics. 

FOUNDATION Fieldbus, PROFIBUS PA and 1 to 5 V DC with HART (Low Power) protocol types are also available. 

EJA-E series models in their standard  configuration, with the exception of the Fieldbus, PROFIBUS and Low Power types, are certified as complying with SIL 2 for safety requirement.
Features
  • 0.055% Square Root Output Accuracy
  • 0.1% per 10 years Stability (DP)
  • Exida and TUV SIL 2/3 Certified
  • 90 to 150 ms Response Time
  • Local Parameter Setting (LPS)

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Specifications

Brand

Accuracy

  • ± (0.005 + 0.0025 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Capsule M
  • ± (0.005 + 0.01 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Capsule H
  • ± (0.005 + 0.02 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Capsule F
  • ± 0.055 % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Reference Accuracy
  • ± 5 % of Span

Alarm

  • Down-Scale: -5 %, 0.8 Vdc or Less - for 1-5 V HART
  • Down-Scale: -5 %, 3.2 mA DC or Less - for 4-20 mA HART/BRAIN
  • Up-Scale: 110 %, 21.6 mA DC or more - for 4-20 mA HART/BRAIN
  • Up-scale: 110 %, 5.4 Vdc or more (Standard) - for 1-5 V HART

Ambient Temperature Range

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

Approvals & Certifications

  • ATEX Flameproof & Intrinsically Safe
  • CSA Explosion-proof & Intrinsically Safe
  • EMC EN 61326-1 Class A, EN 61326-2-3, EN 61326-2-5 (For Fieldbus)
  • FM Explosion-proof & Intrinsically Safe Approval
  • IEC Ex Intrinsically Safe & Flameproof Approval
  • NAMUR NE43
  • PED 2014/68/EU, 97/23/EC

Approvals & Certifications

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

Bore Size

  • 0.02” to 0.25” (0.508 to 6.350 mm) - Water & Air Equivalent, Max.

BSP Connection

  • 1/2” BSPT Female

Burst Pressure

  • psi: 10,000 (kPa: 68,950, bar: 689)

Cable Material

  • Polyethylene Insulated PVC Sheathed

Communication

  • BRAIN
  • FOUNDATION Fieldbus
  • HART
  • PROFIBUS PA

Consumption

  • 0.96-3 mA - Power Consumption
  • 27 mW - Power Consumption

Current

  • 6,000 A, Max.

Damping Adjustment

  • 0 to 100 seconds

Diagnostics

  • Configuration Error
  • CPU Failure
  • Hardware Failure
  • Over-Range Error

Diaphragm Material

  • Hastelloy C-276 - Capsule

Differential Pressure

  • psi: 0 to 30.46 (kPa: 0 to 210, bar: 0 to 2.1)

Display

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

Distance

  • 0 to 2 Kilometers - Communication Distance

Drain, Vent Valves & Plug

  • 316 Stainless Steel

Electrical Connectors

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

Enclosure Finish

  • Anti-Corrosion Coating
  • Deep Sea Moss Green Paint (Munsell 0.6 GY3.1/2.0 or its Equivalent)
  • Polyurethane Paint

Enclosure, Body Material

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

Environmental Protection

  • IP66
  • IP67
  • NEMA 4X

Fill Material

  • Fluorinated Oil - Fill Fluid
  • Silicone - Fill Fluid

Flange Material

  • 316L Stainless Steel - Cover Flange
  • ASTM CF-8M - Cover Flange
  • B7 Carbon Steel - Cover Flange

Flow Rate

  • 0.004 to 1.32 gpm (0.016 to 5 LPM) to Water - for Capsule F
  • 0.005 to 6.076 gpm (0.022 to 23 LPM) to Water - for Capsule M
  • 0.02 to 8.72 gpm (0.07 to 33 LPM) to Water - for Capsule H
  • 0.44 to 140 Nl/min to Air - for Capsule F
  • 0.63 to 635 Nl/min to Air - for Capsule M
  • 2 to 910 Nl/min to Air - for Capsule H

Function

  • Linear
  • Square Root Programmable

Gasket Material

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

Humidity

  • 0 to 100 % Relative Humidity - Ambient Humidity Limits

Input Impedance

  • 10 kiloohms or more at 2.4 kHz - for Communicating Device

Length

  • 4.6” (119 mm) - Long Vent

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

Materials of Construction

  • 304 Stainless Steel - Mounting Bracket
  • 316 Stainless Steel - Name Plate & Tag, Mounting Bracket

Mounting

  • 2” (50.8 mm) Pipe Mounting Bracket

Mounting Position

  • Horizontal
  • Vertical

Mounting Position Effect

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

NACE & NIST

  • NACE MR-0103

NPT Connection

  • 1/2” NPT Female

Nut & Bolt Material

  • 316L Stainless Steel
  • B7 Carbon Steel

O-Ring Material

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

Orifice Material

  • 316 Stainless Steel
  • PTFE - Orifice Gasket

Output

  • 0.9 - 5.4 Vdc
  • 1-5 Vdc (3 or 4-Wire)
  • 3.6-21.6 mA
  • 4-20 mA DC (2-Wire)

Output Load

  • 1 Megaohm or Greater - for 1-5 V HART

Overpressure Effect

  • ± 0.03 % of URL - for Capsule M & H

Power Requirement

  • 9-28 Vdc - for General Use & Flameproof Typical

Power Supply Effect

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

Pressure Range

  • bar: 0 to 2.1
  • Inches WC: 0 to 830
  • kPa: 0 to 210
  • mmWC: 0 to 21,000
  • psi: 0 to 30.46

Pressure Type

  • Absolute
  • Differential
  • Gauge

Process Connection Material

  • ASTM CF-8M (Cast Version of 316L Stainless Steel)

Process Temperature

  • -40° to 120° C (-40° to 248° F)

Response Time

  • 150 milliseconds - F Capsule
  • 90 milliseconds - M & H Capsules

Screw Material

  • 316 Stainless Steel - Zero-Adjustment Screw & Set Screws

Span - Minimum

  • psi: 73 (MPa: 0.5, bar: 5) - Setting Span

Span Effect

  • ± 0.1 % of Span - for Capsule F, M, H

Stability

  • ± 0.1 % of URL Per 7-Years - for Capsule M & H

Static Pressure Effect

  • ± (0.04 % of Span + 0.208 % of URL) Per psi: 1,000 (MPa: 6.9, bar: 69) - Effect on Zero for Capsule F
  • ± 0.028 % of URL Per psi: 1,000 (MPa: 6.9, bar: 69) - Effect on Zero for Capsule M, H
  • ± 0.1 % of Span Per 6.9 MPa (1,000 psi) Change - Span Effect for Capsule F, M, H

Supply Pressure - Maximum

  • psi: 2,300 (MPa: 16, bar: 160)

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 for 4-20 mA HART/BRAIN
  • 24 Vdc Supply, 0 to 550 ohms Load

Temperature Effect

  • ± (0.07 % of Span + 0.015 % of URL) Per 28° C (50° F) - Capsule H Ambient Temperature Effects
  • ± (0.07 % of Span + 0.02 % of URL) Per 28° C (50° F) - Capsule M Ambient Temperature Effects
  • ± (0.08 % of Span + 0.18 % of URL) Per 28° C (50° F) - Capsule F Ambient Temperature Effects

Update Time

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

Vibration Effect

  • < ± 0.1 % of URL - IEC 60770-1 Field with General Application or Pipeline with Low Vibration Level (10-60 Hz, 0.15 mm Displacement / 60-500 Hz, 2 G)
  • < 0.1 % of URL - IEC 60770-1 Field or Pipeline with High Vibration Level (10-60 Hz, 0.21 mm Displacement / 60 to 2,000 Hz, 3 G)

Wetted Materials

  • 316 Stainless Steel - Spacer
  • 316L Stainless Steel
  • F316 Stainless Steel - Manifold
  • F316L Stainless Steel

Zero Offset

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

Documentation

Data Sheets

Certificate

Document

Manual

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