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EJA115E Low Flow Transmitter
Brand: Yokogawa Electric CorporationThe low flow transmitter EJA115E is a differential pressure transmitter assembled with an integral orifice and excellent for very low flow measurement. It outputs a 4 to 20 mA DC signal corresponding to the measured flow.
Its accurate and stable sensor can also measure the static pressure which can be shown on the integral indicator or remotely monitored via BRAIN or HART communications. Other key features include quick response, remote set-up using communications and self-diagnostics.
FOUNDATION Fieldbus, PROFIBUS PA and 1 to 5 V DC with HART (Low Power) protocol types are also available.
EJA-E series models in their standard configuration, with the exception of the Fieldbus, PROFIBUS and Low Power types, are certified as complying with SIL 2 for safety requirement.
Features- 0.055% Square Root Output Accuracy
- 0.1% per 10 years Stability (DP)
- Exida and TUV SIL 2/3 Certified
- 90 to 150 ms Response Time
- Local Parameter Setting (LPS)
Specifications
Accuracy
- ± (0.005 + 0.0025 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Capsule M
- ± (0.005 + 0.01 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Capsule H
- ± (0.005 + 0.02 URL/Span) % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Capsule F
- ± 0.055 % of Span (Includes Terminal-based Linearity, Hysteresis & Repeatability) - Reference Accuracy
- ± 5 % of Span
Alarm
- Down-Scale: -5 %, 0.8 Vdc or Less - for 1-5 V HART
- Down-Scale: -5 %, 3.2 mA DC or Less - for 4-20 mA HART/BRAIN
- Up-Scale: 110 %, 21.6 mA DC or more - for 4-20 mA HART/BRAIN
- Up-scale: 110 %, 5.4 Vdc or more (Standard) - for 1-5 V HART
Ambient Temperature Range
- -30° to 80° C (-22° to 176° F) with LCD Display
- -40° to 85° C (-40° to 185° F)
Approvals & Certifications
- IEC 61508: 2000, SIL 2 Capability for Single Transmitter Use, SIL 3 Capability for Dual Transmitter Use
- Leak Test
- Material Certificate
- Pressure Test
Approvals & Certifications
- ATEX Flameproof & Intrinsically Safe
- 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 Approval
- IEC Ex Intrinsically Safe & Flameproof Approval
- NAMUR NE43
- PED 2014/68/EU, 97/23/EC
Bore Size
- 0.02” to 0.25” (0.508 to 6.350 mm) - Water & Air Equivalent, Max.
BSP Connection
- 1/2” BSPT Female
Burst Pressure
- psi: 10,000 (kPa: 68,950, bar: 689)
Cable Material
- Polyethylene Insulated PVC Sheathed
Communication
- BRAIN
- FOUNDATION Fieldbus
- HART
- PROFIBUS PA
Consumption
- 0.96-3 mA - Power Consumption
- 27 mW - Power Consumption
Current
- 6,000 A, Max.
Damping Adjustment
- 0 to 100 seconds
Diagnostics
- Configuration Error
- CPU Failure
- Hardware Failure
- Over-Range Error
Diaphragm Material
- Hastelloy C-276 - Capsule
Differential Pressure
- psi: 0 to 30.46 (kPa: 0 to 210, bar: 0 to 2.1)
Display
- 5-Digit Numerical Display
- 6-Digit Unit Display
- Bar Graph
- LCD Display
- User-Configurable 10-Segment Signal Characterizer - for 4-20 mA Output
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
Enclosure Finish
- Anti-Corrosion Coating
- Deep Sea Moss Green Paint (Munsell 0.6 GY3.1/2.0 or its Equivalent)
- Polyurethane Paint
Enclosure, Body Material
- ASTM CF-8M Stainless Steel
- Low Copper Cast Aluminum Alloy
Environmental Protection
- IP66
- IP67
- NEMA 4X
Fill Material
- Fluorinated Oil - Fill Fluid
- Silicone - Fill Fluid
Flange Material
- 316L Stainless Steel - Cover Flange
- ASTM CF-8M - Cover Flange
- B7 Carbon Steel - Cover Flange
Flow Rate
- 0.004 to 1.32 gpm (0.016 to 5 LPM) to Water - for Capsule F
- 0.005 to 6.076 gpm (0.022 to 23 LPM) to Water - for Capsule M
- 0.02 to 8.72 gpm (0.07 to 33 LPM) to Water - for Capsule H
- 0.44 to 140 Nl/min to Air - for Capsule F
- 0.63 to 635 Nl/min to Air - for Capsule M
- 2 to 910 Nl/min to Air - for Capsule H
Function
- Linear
- Square Root Programmable
Gasket Material
- Fluorinated Rubber - Process Connector
- PTFE Teflon - Process Connector
- Teflon-Coated 316L Stainless Steel - Capsule
Humidity
- 0 to 100 % Relative Humidity - Ambient Humidity Limits
Input Impedance
- 10 kiloohms or more at 2.4 kHz - for Communicating Device
Length
- 4.6” (119 mm) - Long Vent
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 0.4 kPa
NACE & NIST
- NACE MR-0103
NPT Connection
- 1/2” NPT Female
Nut & Bolt Material
- 316L Stainless Steel
- B7 Carbon Steel
O-Ring Material
- Buna-N - Cover O-Ring
- Fluororubber - Cover O-Rings
Orifice Material
- 316 Stainless Steel
- PTFE - Orifice Gasket
Output
- 0.9 - 5.4 Vdc
- 1-5 Vdc (3 or 4-Wire)
- 3.6-21.6 mA
- 4-20 mA DC (2-Wire)
Output Load
- 1 Megaohm or Greater - for 1-5 V HART
Overpressure Effect
- ± 0.03 % of URL - for Capsule M & H
Power Requirement
- 9-28 Vdc - for General Use & Flameproof Typical
Power Supply Effect
- ± 0.005 % Per Volt (From 21.6 to 32 Vdc, 350 ohms)
Pressure Range
- bar: 0 to 2.1
- Inches WC: 0 to 830
- kPa: 0 to 210
- mmWC: 0 to 21,000
- psi: 0 to 30.46
Pressure Type
- Absolute
- Differential
- Gauge
Process Connection Material
- ASTM CF-8M (Cast Version of 316L Stainless Steel)
Process Temperature
- -40° to 120° C (-40° to 248° F)
Response Time
- 150 milliseconds - F Capsule
- 90 milliseconds - M & H Capsules
Screw Material
- 316 Stainless Steel - Zero-Adjustment Screw & Set Screws
Span - Minimum
- psi: 73 (MPa: 0.5, bar: 5) - Setting Span
Span Effect
- ± 0.1 % of Span - for Capsule F, M, H
Stability
- ± 0.1 % of URL Per 7-Years - for Capsule M & H
Static Pressure Effect
- ± (0.04 % of Span + 0.208 % of URL) Per psi: 1,000 (MPa: 6.9, bar: 69) - Effect on Zero for Capsule F
- ± 0.028 % of URL Per psi: 1,000 (MPa: 6.9, bar: 69) - Effect on Zero for Capsule M, H
- ± 0.1 % of Span Per 6.9 MPa (1,000 psi) Change - Span Effect for Capsule F, M, H
Supply Pressure - Maximum
- psi: 2,300 (MPa: 16, bar: 160)
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 - for Digital Communications, BRAIN & HART for 4-20 mA HART/BRAIN
- 24 Vdc Supply, 0 to 550 ohms Load
Temperature Effect
- ± (0.07 % of Span + 0.015 % of URL) Per 28° C (50° F) - Capsule H Ambient Temperature Effects
- ± (0.07 % of Span + 0.02 % of URL) Per 28° C (50° F) - Capsule M Ambient Temperature Effects
- ± (0.08 % of Span + 0.18 % of URL) Per 28° C (50° F) - Capsule F Ambient Temperature Effects
Update Time
- 360 milliseconds - Static Pressure
- 45 milliseconds - Differential Pressure
Vibration Effect
- < ± 0.1 % of URL - 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)
- < 0.1 % of URL - IEC 60770-1 Field or Pipeline with High Vibration Level (10-60 Hz, 0.21 mm Displacement / 60 to 2,000 Hz, 3 G)
Wetted Materials
- 316 Stainless Steel - Spacer
- 316L Stainless Steel
- F316 Stainless Steel - Manifold
- F316L Stainless Steel
Zero Offset
- External Zero is Continuously Adjustable with 0.01 % Incremental Resolution of Span
Documentation
Data Sheets
Certificate
Document
Manual
- Installation Manual - EJA-E Series pdf 7.2 MB
- 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
- User's Manual - EJA115E Low Flow Transmitter pdf 6.1 MB
- User's Manual - FOUNDATION Fieldbus Protocol pdf 3.7 MB
- User's Manual - HART Protocol pdf 12.2 MB
- User's Manual - NEPSI Certification pdf 622 KB
- User's Manual - PROFIBUS PA Protocol pdf 6.2 MB