Yokogawa Multivariable Transmitter, EJX930A
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EJX930A Multivariable Transmitter

Brand: Yokogawa Electric Corporation
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The high performance EJX930A multivariable transmitter features multi-sensing technology with a single-crystal silicon resonant sensor that outputs the measured differential pressure, static pressure and process temperature, which covers multiple protocols: HART, FOUNDATION fieldbus and RS485 Modbus. 

Additionally the HART protocol and FOUNDATION fieldbus protocol types are suitable to measure dynamically calculated and fully compensated mass flow for liquid, gas, or steam. 4-20 mA DC signal output is available in HART protocol type. 

FDT/DTM standard conforming software is available for transmitter configuration. FSA120 (FieldMateTM FlowNavigatorTM) is used for flow configuration of the HART protocol and FOUNDATION fieldbus protocol types.
Features
Mass Flow Version:
  • Orifice, Nozzle and Venturi primary devices are supported
  • For HART7 protocol, Multiport Averaging Pitot and Cone meters are supported additionally
  • ±1.0% mass flow rate accuracy
  • (In case of uncalibrated differential producer (Orifice))
  • Fully compensated mass flow
  • Mass Flow Totalizer with ±1.0% accuracy
  • Pulse / Contact output
  • 4,500 psi MWP
  • TUV SIL 2/3 Certification
Multi-Sensing Version:
  • ±0.04% Differential Pressure Accuracy
  • ±0.1% Static Pressure Accuracy
  • ±0.9°F External Temperature Accuracy
  • 4,500 psi MWP
  • TUV SIL 2/3 Certification

View Details

Specifications

Brand

Accuracy

  • ± (0.005 + 0.0035 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Reference Accuracy (X > Span) for Capsule M (For Differential Pressure)
  • ± (0.005 + 0.0049 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Reference Accuracy (X > Span) for Capsule H (For Differential Pressure)
  • ± 0.04 % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Reference Accuracy (X ≤ Span) for Capsule H & M (For Differential Pressure)
  • ± 0.1 % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Reference Accuracy for Capsule M & H (For Static Pressure)
  • ± 0.5° C (± 0.9° F) (Includes Terminal-based Linearity, Hysteresis & Repeatability) - for Capsule M & H (For External Temperature)
  • ± 1 % of Mass Flow Rate over 10:1 Flow Range - Mass Flow Reference Accuracy
  • 1 % of Total Mass Flow - Totalized Mass Flow Reference Accuracy

Adjustment Type

  • Zero Adjustment Screw

Alarm

  • Down-Scale: -2.5 %, 3.6 mA DC or Less
  • Up-Scale: 110 %, 21.6 mA DC or more

Ambient Temperature Range

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

Approvals & Certifications

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

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 (For Fieldbus)
  • FM Explosion-proof, Intrinsically Safe & Non-Incendive
  • IEC Ex Flameproof
  • NAMUR NE43
  • PED 2014/68/EU, 97/23/EC
  • UL

Burst Pressure

  • psi: 19,100 (MPa: 132, bar: 1,320)

Cable Material

  • Heat-Resistant FEP Cable with a Shield
  • Nickel-Plated Brass - Cable Gland

Cable Type

  • Shielded Cable

Communication

  • 2-Wire Half-Duplex RS-485 Modbus Communication Protocol
  • Baud Rate: 1,200, 4,800, 9,600, 19,200 bit/sec
  • FOUNDATION Fieldbus
  • HART
  • Modbus

Current

  • 10 mA Typical - Quiescent Supply Current (For Modbus)
  • Software Download State 24 mA - Max.
  • Steady State 15 mA - Max.

Damping Adjustment

  • 0 to 100 seconds - Damping Time Constant

Diagnostics

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

Diameter

  • 0.168” (4.3 mm) - Outside Diameter for Heat-Resistant FEP Cable with a Shield
  • 0.335” (8.5 mm) - Outside Diameter for Oil-Proof & a Heat-Resistant Cable with a Shield

Diaphragm Material

  • Hastelloy C-276

Differential Pressure

  • psi: -14.5 to 14.5 (kPa: -100 to 100, Mbar: -1,000 to 1,000) - for Capsule M
  • psi: -72.52 to 72.52 (kPa: -500 to 500, Mbar: -5,000 to 5,000) - for Capsule H

Display

  • 5-Digit (Flow, Differential Pressure, Static Pressure & External Temperature)
  • 6-Digit Numerical Display (Total Flow)
  • 6-Digit Unit Display
  • Bar Graph
  • LCD Display

Drain, Vent Valves & Plug

  • 316 Stainless Steel

Duty Cycle

  • Approximately 50 % (1: 2 to 2: 1)

Electrical Connectors

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

Enclosure Finish

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

Enclosure, Body Material

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

Environmental Protection

  • IP66
  • IP67
  • NEMA 4X

Execution Time

  • 30 milliseconds - for AI, SC, IT, IS & AR Function Block
  • 45 milliseconds - for PID Function Block

Fill Material

  • Fluorinated Oil
  • Silicone Oil

Flange Material

  • F316 Stainless Steel - Cover Flange

Frequency

  • 10 kHz, Max.

Gasket Material

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

Humidity

  • 0 to 100 % Relative Humidity - Ambient Humidity

Length

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

Load

  • 0 to 1,335 ohms - for Operation (HART Protocol Typical)
  • 250 to 600 ohms for Digital Communication (HART Protocol Typical)

Materials of Construction

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

Media

  • Gas
  • Liquids
  • Steam

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
  • NACE MR-0175, ISO 15156

NPT Connection

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

Nut & Bolt Material

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

O-Ring Material

  • Buna-N - Cover O-Ring
  • Fluorinated Rubber - Cover O-Ring

Operating Temperature

  • -20° to 80° C (-4° to 176° F)

Output

  • 0-2 Vdc - Low Level Pulse Output
  • 10.5-30 Vdc at 120 mA DC, Max.
  • 3.8-21.6 mA - Analog Output
  • 4-20 mA DC (2-Wire) - Analog Output

Overpressure Effect

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

Power Supply Effect

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

Pressure Type

  • Absolute
  • Differential
  • Gauge

Process Connection Material

  • ASTM CF-8M

Process Temperature

  • -40° to 120° C (-40° to 248° F)

Response Time

  • 200 milliseconds - HART & Modbus for Capsule M & H (Static Pressure Signal)
  • 250 milliseconds - HART & Modbus for Capsule M & H (Differential Pressure Signal)
  • 300 milliseconds - Fieldbus for Capsule M & H (Static Pressure Signal)
  • 350 milliseconds - Fieldbus for Capsule M & H (Differential Pressure Signal)

RTD Type

  • Pt100

Sensor, Probe Type

  • RTD

Stability

  • ± 0.1 % of URL Per 10-Years - for M & H Capsules (For Differential Pressure)

Static Pressure

  • psi: -14.5 to 4,500 (MPa: -0.1 to 32, bar: -1 to 320) - Gauge Pressure (Sealed Gauge) for Capsule M & H
  • psia: 0 to 4,500 (MPa: 0 to 32, bar: 0 to 320) - Absolute Pressure for Capsule M & H

Static Pressure Effect

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

Supply Pressure - Maximum

  • psi: 4,500 (MPa: 32, bar: 320) - for Capsule M & H

Supply Voltage

  • 10.5-30 Vdc - Intrinsically Safe, Typical N or Non-Incendive (For HART)
  • 10.5-32 Vdc - Lightning Protector (For HART)
  • 10.5-42 Vdc - General Use & Flameproof Typical (For HART)
  • 16.6 Vdc - Min. Voltage for HART Communication
  • 24 Vdc, up to 570 ohms Load
  • 300 V - RTD Cable Voltage Rating
  • 9-30 Vdc, 250 mW - General Use & Flameproof Typical for Modbus
  • 9-32 Vdc - General Use, Flameproof Typical, Typical N or Non-Incendive for FOUNDATION Fieldbus

Temperature Effect

  • ± (0.07 % of Span + 0.009 % of URL) Per 28° C (50° F) - Ambient Temperature Effect for Capsule M (For Differential Pressure)
  • ± (0.07 % of Span + 0.0125 % of URL) Per 28° C (50° F) - Ambient Temperature Effect for Capsule H (For Differential Pressure)
  • ± 0.14 % of Span ± 0.018 % of URL Per 28° C (50° F) - Ambient Temperature Effect for Capsule M & H (For Static Pressure)
  • ± 0.5° C (± 0.9° F) Per 28° C (50° F) - Ambient Temperature Effect for Capsule M & H (For External Temperature)

Temperature Range

  • 10° to 1,050° C (18° to 1,890° F) - Span for Capsule M, H & L (External Temperature)
  • -200° to 850° C (-328° to 1,562° F) - Range for Capsule M, H & L (External Temperature)
  • -273° to 1,927° C (-459° to 3,500° F) - Fixed Temperature for Capsule M, H & L (External Temperature)
  • -40° to 105° C (-40° to 221° F) - Cable for RTD (External Temperature)
  • -80° to 200° C (-112° to 392° F) - Cable for RTD (External Temperature)

Update Time

  • 1,000 milliseconds - HART for Total Flow Signal
  • 100 milliseconds - HART, Modbus for Flow Rate, Differential & Static Pressure Signal
  • 200 milliseconds - Fieldbus for Flow Rate, Differential & Static Pressure Signal
  • 400 milliseconds - HART, Modbus for External Temperature Signal
  • 800 milliseconds - Fieldbus for External Temperature Signal

Vibration Effect

  • ± 0.1 % of URL - Differential & Static Pressure
  • ± 0.5° C (± 0.9° F) - External Temperature

Wetted Materials

  • 316L Stainless Steel - Others
  • F316L Stainless Steel - Others

Zero Offset

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

Documentation

Data Sheets

Certificate

Manual

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