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EJX310A Absolute Pressure Transmitter
Brand: Yokogawa Electric CorporationThe high performance absolute pressure transmitter EJX310A features single crystal silicon resonant sensor and is suitable to measure liquid, gas, or steam pressure.
The EJX310A outputs 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, and diagnostics.
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- ± 0.075% Accuracy
- ± 0.2% per 15 years Stability
- 90 ms Response Time
- Exida and TUV SIL 2/3 Certification
- LPS (Local Parameter Setting)
Specifications
Accuracy
- ± (0.005 + 0.0035 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability)
- ± (0.01 + 0.005 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability)
- ± (0.02 + 0.03 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability)
- ± 0.04 % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability)
- ± 0.075 % of Span (Includes Terminal-based Linearity, Hysteresis, & Repeatability)
Adjustment Type
- External Zero Adjustment Screw
- Push Button
Alarm
- Down-Scale: -5 %, 3.2 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
- ATEX Flameproof & Intrinsically Safe
- CSA Explosion-proof & Intrinsically Safe
- EMC EN 61326-1 Class A (For Industrial Locations), EN 61326-2-3, EN 61326-2-5 (For Fieldbus)
- FM Explosion-proof & Intrinsically Safe
- IECEx Flameproof & Intrinsically Safe
- NAMUR NE43
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, Part 1 to Part 7
- TÜV (Technischer Uberwachungsverein)
BSP Connection
- 1/2” BSPT Female
- 1/4” BSPT Female
Burst Pressure
- psi: 10,000 (MPa: 69, bar: 690)
Cable Material
- Polyethylene Insulated PVC Sheathed
Communication
- BRAIN
- FOUNDATION Fieldbus
- HART
- PROFIBUS PA
Damping Adjustment
- 0 to 100 seconds
Dead Time
- 45 milliseconds
Diagnostics
- Configuration Error
- CPU Failure
- Hardware Failure
- Heat Trace Monitoring - Advanced Diagnostic
- Impulse Line Blockage Detection - Advanced Diagnostics
- Process Alarm for Pressure or Capsule Temperature
- User-Configurable Process High/Low Alarm for Pressure
Diaphragm Material
- ASTM N10276
- Hastelloy C-276
Display
- 10-Segment User-Configurable, Signal Characterizer for 4-20 mA Output
- 5-Digit Numerical Display
- 6-Digit Unit Display
- Bar Graph
- LCD Display
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
Electrical Protection
- Lightning Protection
Electrical Rating
- 120 mA DC, Max.
Enclosure Finish
- Anti-Corrosion Coating
- Polyurethane, Mint-Green Paint (Munsell 5.6BG 3.3/2.9 or its Equivalent)
Enclosure, Body Material
- ASTM CF-8M Stainless Steel
- Low Copper Cast Aluminum Alloy
Environmental Protection
- IP66
- IP67
- NEMA 4X
Fill Material
- Fluorinated Oil
- Silicone Oil
Flange Material
- ASTM CF-8M - Cover Flange
Gasket Material
- Fluorinated Rubber - Process Connector Gasket
- PTFE - Process Connector Gasket
- Teflon-Coated 316L Stainless Steel
Humidity
- 0 to 100 % Relative Humidity - Ambient Humidity
Input Impedance
- 10 kiloohms or more at 2.4 kHz - Communicating Device
Length
- 1.33” (34 mm) - Standard Vent Length
- 4.6” (119 mm) - Total Vent Length
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 0.5 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
- Fluororubber - Cover O-Ring
Operating Temperature
- -20° to 80° C (-4° to 176° F)
Output
- 3.6-21.6 mA
- 3.8-20.5 mA - Output Signal Limits
- 4-20 mA DC (2-Wire)
Output Format
- Transistor Output
Overpressure & Static Pressure Limits
- psia: 2,300 (MPa: 16, bar: 160) for a Capsule - Max.
- psia: 3,600 (MPa: 25, bar: 250) for B Capsule - Max.
- psia: 72 (kPa: 500, bar: 5) for L & M Capsules - Max.
Power Supply Effect
- ± 0.005 % Per Volt (From 21.6 to 32 Vdc, 350 ohms)
Pressure Range
- bar: 0 to 160
- kPa: 0 to 16,000
- mmHg: 0 to 970
- psi: 0 to 2,300
Pressure Type
- Absolute
Process Connection Material
- ASTM CF-8M
Process Temperature
- -40° to 100° C (-40° to 212° F) - L Capsule
- -40° to 120° C (-40° to 248° F) - M, A & B Capsules
Response Time
- 90 milliseconds
Stability
- ± 0.2 % of URL for 10-Years
Supply Pressure - Maximum
- psia: 1.45 (kPa: 10, bar: 0.1) - L Capsule
- psia: 18.8 (kPa: 130, bar: 1.3) - M Capsule
- psia: 2,300 (MPa: 16, bar: 160) - B Capsule
- psia: 500 (MPa: 3.5, bar: 35) - A Capsule
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 - Min. Voltage for Digital Communications, BRAIN & HART
- 24 Vdc - up to A 550 ohms Load
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
- Pressure: 45 milliseconds
Vibration Effect
- < ± 0.1 % of URL - Per IEC 60770-1 with Low Vibration Level (10-60 Hz, 0.15 mm Displacement / 60-500 Hz 2 G)
- < 0.1 % of URL - Per IEC 60770-1 with High Vibration Level (10-60 Hz, 0.21 mm Displacement / 60-2,000 Hz 3 G)
Wetted Materials
- 316L Stainless Steel - Capsule
- F316L Stainless Steel - Capsule
Zero Offset
- External Zero is Continuously Adjustable with 0.01 % Incremental Resolution of Span
Documentation
Data Sheets
Certificate
Manual
- Differential Pressure and Pressure Transmitter pdf 6.3 MB
- DPharp BRAIN Communication Type pdf 2.7 MB
- DPharp Fieldbus Communication Type pdf 3.7 MB
- DPharp HART 5/7 Communication Type pdf 12.2 MB
- DPharp PROFIBUS PA Communication Type pdf 6.2 MB
- EJX and EJA-E Series Differential Pressure and Pressure Transmitters Installation Manual pdf 7.2 MB
- EJX/EJA-E series NEPSI Certification[Option code: /NF2, /NF21, /NS21, /NS24 and /NS25] pdf 622 KB
- Manual Change 22-24E: EJX-A and EJA-E Series Differential Pressure and Pressure Transmitters pdf 186 KB
- Manual Change 22-25E: EJX/EJA-E series NEPSI Certification[Option code: /NF2, /NF21, /NS21, /NS24 and /NS25] pdf 312 KB