Yokogawa Wireless Pressure Transmitter, EJX310B
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EJX310B Wireless Pressure Transmitter

Brand: Yokogawa Electric Corporation
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The high performance wireless pressure transmitter EJX310B features a single crystal silicon resonant sensor and are suitable to measure liquid, gas, or steam flow as well as liquid level, density, and pressure.

These transmitters transmit not only process variables but also the setting parameters using wireless signal. The transmitters run on internal batteries, and the installation cost can be decreased since hard-wiring is not required.

The communication is compliant with ISA100.11a protocol specifications.
Features
  • Long Life Battery Design
    • Ultra low current consumption design using two high capacity lithium-thionyl chloride batteries provide wireless operation for years
  • Security Assured Wireless Network Joining
    • Infrared communication between the devices for wireless network configuration and parameter setting
  • Quick Update Time
    • Selectable from 0.5 second to 60 minutes for measured process value to publish wirelessly

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Specifications

Brand

Accuracy

  • (0.02 + 0.03 URL/Span) % of Span - Capsule L
  • ± (0.005 + 0.0035 URL/Span) % of Span - Capsule A & Capsule B
  • ± (0.01 + 0.005 URL/Span) % of Span - Capsule M
  • ± 0.04 % of Span - Capsule M, Capsule A & Capsule B
  • 0.075 % of Span - Capsule L

Ambient Temperature Range

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

Approvals & Certifications

  • ATEX Intrinsically Safe
  • CE ETSI EN 300328, ETSI EN 301489-1, ETSI EN 301489-17, EN 61010-1, EN 61010-2-030, EN 62311
  • CSA Intrinsically Safe
  • EMC EN 61326-1 Class A, EN 61326-2-3
  • FCC Approval
  • FM Intrinsically Safe
  • IC
  • IECEx Intrinsically Safe
  • PED 2014/68/EU
  • PED 97/23/EC

Approvals & Certifications

  • Leak Test
  • Material Certificate
  • Pressure Test
  • R & TTE Directive

Battery Life

  • 10-Years - at 60 seconds Update Time
  • 4-Years - at 10 seconds Update Time

BSP Connection

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

Burst Pressure

  • psi: 10,000 (MPa: 69, bar: 690)
  • psi: 6,800 (MPa: 47, bar: 470)

Communication

  • Data Rate: 250 Kbps
  • Wireless Communication Protocol: ISA100.11a

Diagnostics

  • Amplifier Failure - Self
  • Battery Alarm - Self
  • Capsule Failure - Self
  • Configuration Error - Self
  • Over-Range Error for Process Variables - Self
  • Wireless Communication Alarm - Self

Diameter

  • 0.44” (11.2 mm) - Sheath Diameter of Antenna Cable

Diaphragm Material

  • Hastelloy C-276 - Capsule

Display

  • 5-Digit Numerical Display
  • 6-Digit Unit Display
  • Bar Graph
  • LCD Display

Drain, Vent Valves & Plug

  • 316 Stainless Steel - Name Plate & Tag

Enclosure Finish

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

Environmental Protection

  • IP66
  • IP67
  • NEMA 4X

Fill Material

  • Fluorinated Oil - Capsule Fill Fluid
  • Silicone - Fill Fluid

Flange Material

  • ASTM CF-8M - Cover

Fluid

  • Gas
  • Liquid
  • Steam

Frequency

  • 2,400 to 2,483.5 MHz

Gasket Material

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

Humidity

  • 0 to 100 % Relative Humidity - Ambient Humidity Limits

Length

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

Materials of Construction

  • 304 Stainless Steel - Mounting Bracket
  • 316 Stainless Steel - Mounting Bracket

Mounting

  • 2” Pipe Mounting Bracket

Mounting Position

  • Horizontal
  • Universal
  • Vertical

Mounting Position Effect

  • Tilting up to 90 Degree will cause Zero Shift up to 0.5 kPa

NACE & NIST

  • NACE MR-0103

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

Operating Temperature

  • -20° to 80° C (-4° to 176° F)

Overpressure & Static Pressure Limits

  • psia: 2,300 (MPa: 16, bar: 160) - Max.
  • psia: 3,600 (MPa: 25, bar: 250) - Max.
  • psia: 72 (kPa: 500, bar: 5) - Max.

Power

  • Maximum

Power Requirement

  • 7.2 V, 19 Ah Battery
  • Lithium Thionyl Chloride Batteries (2 x Primary)

Pressure Range

  • bar: 0 to 160
  • Inches Hg: 0 to 38
  • kPa: 0 to 16,000
  • mmHg: 0 to 970
  • psia: 0 to 2,300

Pressure Type

  • Absolute
  • Differential
  • Gauge

Process Connection Material

  • ASTM CF-8M

Process Temperature

  • -40° to 100° C (-40° to 212° F) - for L Capsule
  • -40° to 120° C (-40° to 248° F) - for M, A, B Capsules

Response Time

  • 150 milliseconds

Stability

  • ± 0.1 % of URL Per 10-Years

Supply Pressure - Maximum

  • psia: 1.45 (kPa: 10, bar: 0.1) - Capsule L
  • psia: 18.85 (kPa: 130, bar: 1.3) - Capsule M
  • psia: 2,300 (MPa: 16, bar: 160) - Capsule B
  • psia: 500 (MPa: 3.5, bar: 35) - Capsule A

Temperature Effect

  • ± (0.04 % of Span + 0.012 % of URL) Per 28° C (50° F) - Capsule A & B Ambient Temperature Effect
  • ± (0.04 % of Span + 0.035 % of URL) Per 28° C (50° F) - Capsule M Ambient Temperature Effect
  • ± (0.1 % of Span + 0.35 % of URL) Per 28° C (50° F) - Capsule L Ambient Temperature Effect

Update Time

  • 0.5 to 3,600 seconds - for Measured Process Value to Publish Wirelessly

Vibration Effect

  • < 0.1 % of URL - According to IEC 60770-1

Wetted Materials

  • 316L Stainless Steel
  • F316L Stainless Steel

Zero Offset

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

Documentation

Data Sheets

Brochure

Manual

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