Yokogawa In-Line Gauge Pressure Transmitter, EJX530A
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EJX530A In-Line Gauge Pressure Transmitter

Brand: Yokogawa Electric Corporation
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The high performance absolute and gauge pressure transmitter EJX530A feature single crystal silicon resonant sensor and are suitable to measure liquid, gas, or steam pressure. 

EJX530A output a 4-20 mA DC signal corresponding to the measured pressure. It also features quick response, remote setup and monitoring via BRAIN or HART 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
  • Accuracy: ± 0.04% of Span
  • Response Time: 90 msec
  • Stability: ± 0.1% of URL per 15 years

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Specifications

Brand

Cable Material

  • Polyethylene Insulated PVC Sheathed

Display

  • 10-Segment - User Configurable, Signal Characterizer
  • 5-Digit Numerical Display
  • 6-Digit Unit Display
  • Bar Graph
  • LCD Display

Supply Voltage

  • 10.5-30 Vdc - for Intrinsically Safe, Typical N, Non-Incendive or Non-Sparking Typical
  • 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

O-Ring Material

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

Process Connection Material

  • 316L Stainless Steel
  • Hastelloy C-276

Temperature Effect

  • ± (0.15 % of Span + 0.15 % of URL) Per 28° C (50° F) Change - Ambient Temperature Effect

Response Time

  • 90 milliseconds

Enclosure, Body Material

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

Output

  • 3.6-21.6 mA
  • 3.8-20.5 mA - Output Signal Limits

Output Signal

  • 4-20 mA DC (2-Wire)

Power Supply Effect

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

Stability

  • ± 0.1 % of URL for 10-Years - All Normal Operating Condition

Diaphragm Material

  • Hastelloy C-276

Humidity

  • 0 to 100 % Relative Humidity - Ambient Humidity

Wetted Materials

  • 316L Stainless Steel
  • Hastelloy C-276

Update Time

  • 45 milliseconds

Enclosure Finish

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

NPT Connection

  • 1/2” NPT Female
  • 1/2” NPT Male

Fill Material

  • Fluorinated Oil - Fill Fluid
  • Silicone - Fill Fluid

Process Temperature

  • -40° to 120° C (-40° to 248° F)

Input Impedance

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

Alarm

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

Mounting

  • 2” Pipe Mounting Bracket

Ambient Temperature Range

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

Pressure Type

  • Absolute
  • Gauge

Supply Pressure - Maximum

  • psi: 1,450 (kPa: 10,000, bar: 100) - for C Capsule
  • psi: 29 (kPa: 200, bar: 2) - for a Capsule
  • psi: 290 (kPa: 2,000, bar: 20) - for B Capsule
  • psi: 7,200 (kPa: 50,000, bar: 500) - for D Capsule

Mounting Position Effect

  • Tilting up to 90° will cause Zero Shift up to 0.21 kPa

Communication

  • BRAIN
  • FOUNDATION Fieldbus
  • HART
  • PROFIBUS PA

Approvals & Certifications

  • ATEX Flameproof & Intrinsically Safe
  • CE
  • CSA Explosion-proof & Intrinsically Safe
  • EMC 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, 97/23/EC

Materials of Construction

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

Adjustment Type

  • External Zero Adjustment Screw
  • Push Button

BSP Connection

  • G 1/2” Male

Zero Offset

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

Pressure Range

  • bar: -1 to 500
  • kPa: -100 to 50,000
  • psi: -14.5 to 7,200

Burst Pressure

  • psi: 19,140 (kPa: 132,000, bar: 1,320) - for D Capsule
  • psi: 4,351 (kPa: 30,000, bar: 300) - for A, B & C Capsule

Vibration Effect

  • < ± 0.1 % of URL - when Tested Per the Requirements of 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) - for ASTM CF-8M Stainless Steel
  • < 0.1 % of URL - when Tested Per the Requirements of IEC 60770-1 Field or Pipeline with High Vibration Level (10-60 Hz, 0.21 mm Displacement / 60-2,000 Hz 3 G) - for Cast Aluminum Alloy, Cast Aluminum Alloy with Corrosion Resistance Properties

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

Damping Adjustment

  • 0 to 100 seconds

Operating Temperature

  • -20° to 80° C (-4° to 176° F)

Distance

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

Fluid

  • Liquid & Gas
  • Steam

Overpressure & Static Pressure Limits

  • psi: 10,800 (kPa: 75,000, bar: 750) - for D Capsule
  • psi: 2,900 (kPa: 20,000, bar: 200) - for C Capsule
  • psi: 580 (kPa: 4,000, bar: 40) - for a & B Capsule

NACE & NIST

  • NACE MR-0103

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)

Accuracy

  • ± (0.004 URL/Span) % of Span (Includes the Effects of Terminal-based Linearity, Hysteresis, & Repeatability) - for Measurement Span A
  • ± (0.005 + 0.0035 URL/Span) % of Span (Includes the Effects of Terminal-based Linearity, Hysteresis, & Repeatability) - for Measurement Span B, C
  • ± 0.04 % of Span (Includes the Effects of Terminal-based Linearity, Hysteresis, & Repeatability) - for Measurement Span A, B, C & D

Diagnostics

  • Configuration Error - Self Diagnostics
  • CPU Failure - Self Diagnostics
  • Hardware Failure - Self Diagnostics
  • Heat Trace Monitoring - Advanced Diagnostics
  • Impulse Line Blockage Detection - Advanced Diagnostics

Electrical Rating

  • 10.5-30 Vdc, 120 mA DC, Max.

Metric Connection

  • M20 x 1.5 Male

Environmental Protection

  • IP66
  • IP67
  • NEMA 4X

Electrical Connectors

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

Function

  • Linear
  • Square Root Programmable

Documentation

Brochure

Manual

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