Yokogawa Differential Pressure Transmitter with Remote Diaphragm Seals, EJA118N
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EJA118N Differential Pressure Transmitter

Brand: Yokogawa Electric Corporation
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The EJA-A series is Yokogawa's most successful pressure transmitter line.

First released in 1991, it continues to offer high performance and high reliability for any application. With an installed base of over 4-1/2 million EJA-A transmitters worldwide, it has a proven track record that makes it a true industry workhorse.

The EJA118 is a Differential Pressure Transmitter with remote diaphragm seals in the series.

It is available with Flush-type seals (EJA118W), Extended-type seals (EJA118N), or a combination of the two (EJA118Y)
Features
  • 0.2% Accuracy
  • 700 ms Response Time
  • External Zero Adjustment

Specifications

Brand

Accuracy

  • ± 0.2 % - Capsule M & H

Alarm

  • Down-Scale: -2.5 %, 3.6 mA DC or Less
  • Down-Scale: -5 %, 3.2 mA DC or Less
  • Up-Scale: 110 %, 21.6 mA DC or more

Ambient Temperature Range

  • -30° to 60° C (-22° to 140° F) - with Integral Indicator
  • -40° to 60° C (-40° to 140° F) - General Use Typical

Approvals & Certifications

  • Leak Test
  • Mill Certificate
  • Pressure Test

Approvals & Certifications

  • CSA - Explosion-proof & Intrinsically Safe
  • EMC - EN 61326-1 Class A, Table 2 (Industrial Locations), EN 61326-2-3
  • FM - Explosion-proof & Intrinsically Safe
  • IECEx - Flameproof, Typical N & Intrinsically Safe
  • NAMUR NE43 Compliant
  • PED 97/23/EC - Sound Engineering Practice
  • TIIS - Flameproof & Intrinsically Safe

Cable Material

  • Polyethylene Insulated PVC Sheathed

Capillary Length

  • 3.3 to 32.8 feet (1 to 10 metres)

Communication

  • BRAIN
  • FOUNDATION Fieldbus
  • HART
  • PROFIBUS PA

Damping Adjustment

  • 0.2 to 64 seconds - Can be Set in 9 Increments

Diaphragm Material

  • Hastelloy C-276
  • JIS 316L Stainless Steel
  • Tantalum
  • Titanium

Display

  • LCD Digital Indicator

Distance

  • 2 Kilometers - Communication Distance

Electrical Connectors

  • 1/2” NPT Female
  • G 1/2” Female
  • M20 Female
  • PG13.5 Female

Electrical Protection

  • Lightning Protection as Per IEC 61000-4-4, IEC 61000-4-5

Enclosure Finish

  • Deep Sea Moss Green Paint (Munsell 0.6 GY3.1/2.0)
  • Epoxy Resin-Baked Coating
  • Polyurethan Resin Baked Finish

Enclosure, Body Material

  • JIS SCS14A Stainless Steel - Amplifier Housing

Environmental Protection

  • IP66
  • IP67
  • NEMA 4X

Fill Material

  • Ethylene Glycol
  • Fluorinated Oil
  • Silicone Oil

Flange Material

  • JIS S25C
  • JIS SCM435 - Cover Flange Bolts Material
  • JIS SCS14A - Cover Flange
  • JIS SUS630 - Cover Flange Bolts Material

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# ANSI/JPI
  • 3” (DN 80) - 300# ANSI/JPI
  • 3” (DN 80) - JIS 10K
  • 3” (DN 80) - JIS 20K
  • 3” (DN 80) - PN 10
  • 3” (DN 80) - PN 16
  • 3” (DN 80) - PN 25
  • 3” (DN 80) - PN 40

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ANSI/JPI
  • 4” (DN 100) - 300# ANSI/JPI
  • 4” (DN 100) - JIS 10K
  • 4” (DN 100) - JIS 20K
  • 4” (DN 100) - PN 10
  • 4” (DN 100) - PN 16
  • 4” (DN 100) - PN 25
  • 4” (DN 100) - PN 40

Fluid Specific Gravity

  • 0.94 to 1.09 - Silicone Oil
  • 1.09 - Ethylene Glycol
  • 1.90 to 1.92 - Fluorinated Oil

Humidity

  • 5 to 100 % Relative Humidity at 40° C (104° F) - Ambient Humidity Limits

Input Impedance

  • 10 kiloohms or more at 2.4 kHz

Load

  • 0.22 μF or Less - Load Capacitance
  • 250 to 600 ohms - Digital Communication
  • 3.3 MH or Less - Load Inductance

Materials of Construction

  • 304 Stainless Steel - Tag Plate
  • 316 Stainless Steel - Tag Plate

Mounting

  • 2” Pipe Mounting - Transmitter
  • Flange Mount - Diaphragm Seals

O-Ring Material

  • Fluororubber

Operating Temperature

  • Maximum

Output

  • 4-20 mA DC (2-Wire)

Power Supply Effect

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

Pressure Range

  • bar: -5 to 5
  • Inches WC: -2,000 to 2,000
  • kPa: -500 to 500
  • mmWC: -10,000 to 10,000
  • psi: -72.52 to 72.52

Pressure Type

  • Absolute
  • Differential

Process Temperature

  • -50° to 300° C (-58° to 572° F)

Response Time

  • 0.5 second, Max.

Screw Material

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

Static Pressure Effect

  • Total Shift: ± 0.14 % / 0.98 MPa (10 kgf/cm²) for 4” Flange
  • Total Shift: ± 0.25 % / 0.98 MPa (10 kgf/cm²) for 3” Flange
  • Zero Shift: ± 0.1 % / 0.98 MPa (10 kgf/cm²) for 4” Flange
  • Zero Shift: ± 0.2 % / 0.98 MPa (10 kgf/cm²) for 3” Flange

Supply Pressure

  • psi: 0.3916 (kPa: 2.7, bar: 0.027)

Supply Voltage

  • 10.5 -32 Vdc - for Lightning Protector
  • 10.5-28 Vdc for TIIS Intrinsically Safe Typical
  • 10.5-30 Vdc - for Intrinsically Safe, Typical N, Non-Incendive, or Non-Sparking Typical
  • 10.5-42 Vdc - for General Use & Flameproof Typical
  • 16.4-42 Vdc - Communication Line

Temperature Effect

  • ± 1.4 %/50° C (122° F) - Ambient Temperature Effect

Update Time

  • 0.125 seconds - Fast Response

Wetted Materials

  • JIS SUS316 - Pipe

Zero Offset

  • Continuously Adjustable Resolution 0.01 % of Span - External Zero Adjustment

Documentation

Data Sheets

Manual

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