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EJA118W Differential Pressure Transmitter
Brand: Yokogawa Electric CorporationDiaphragm seals are used to prevent process medium form entering directly into the pressure-sensing assembly of the differential pressure transmitter, they are connected to the transmitter using capillaries filled with fill fluid.
Model EJA118W Diaphragm Sealed Differential Pressure Transmitter can be used to measure liquid, gas, or steam flow, as well as liquid level, density, and pressure. They output a 4-20 mA DC signal corresponding to the measured pressure differential.
The transmitters also feature remote setup and monitoring through communications with the model BT200/100 BRAIN TERMINAL, CENTUM CS/XL system etc.
Features- 0.2% Accuracy
- 700 ms Response Time
- External Zero Adjustment
Specifications
Accuracy
- ± 0.2 % - for 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
- ATEX
- CSA Explosion-proof & Intrinsically Safe
- EMC EN 61326-1 Class A, EN 61326-2-3
- FM Explosion-proof & Intrinsically Safe
- IECEx Intrinsically Safe, Typical N & Flameproof Approval
- NAMUR NE43 Compliant
- PED 97/23/EC
- TIIS - Flameproof & Intrinsically Safe
Approvals & Certifications
- Leak Test
- Mill Certificate
- Pressure Test
Cable Material
- CEV 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
- 316L Stainless Steel
- Hastelloy C-276
- Tantalum
- Titanium
Display
- LCD Display - Digital Integral 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
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
- Cast Aluminum Alloy - Amplifier Housing
- JIS SCS14A Stainless Steel - Amplifier Housing
Environmental Protection
- IP66
- IP67
- NEMA 4X
Fill Material
- Ethylene Glycol - Fill Fluid
- Fluorinated Oil - Fill Fluid
- Silicone Oil - Fill Fluid
Flange Material
- JIS S25C - Process Flange
- JIS SCM435 - Cover Flange Bolt Material
- JIS SCS14A - Cover Flange
- JIS SUS304 - Process Flange
- JIS SUS316 - Process Flange
- JIS SUS630 - Cover Flange Bolt Material
Flange Size - 2” (DN 50)
- 2” (DN 50) - 150# ANSI/JPI
- 2” (DN 50) - 300# ANSI/JPI
- 2” (DN 50) - 600# ANSI/JPI
- 2” (DN 50) - JIS 10K
- 2” (DN 50) - JIS 20K
- 2” (DN 50) - JIS 40K
- 2” (DN 50) - PN 10
- 2” (DN 50) - PN 16
- 2” (DN 50) - PN 25
- 2” (DN 50) - PN 40
- 2” (DN 50) - PN 64
Flange Size - 3” (DN 80)
- 3” (DN 80) - 150# ANSI/JPI
- 3” (DN 80) - 300# ANSI/JPI
- 3” (DN 80) - 600# ANSI/JPI
- 3” (DN 80) - JIS 10K
- 3” (DN 80) - JIS 20K
- 3” (DN 80) - JIS 40K
- 3” (DN 80) - PN 10
- 3” (DN 80) - PN 16
- 3” (DN 80) - PN 25
- 3” (DN 80) - PN 40
- 3” (DN 80) - PN 64
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
Input Impedance
- 10 kiloohms or more at 2.4 kHz
Load
- 0.22 µF or Less - Load Capacitance
- 250 to 600 ohms - Load Resistance
- 3.3 MH or Less - Load Inductance
Materials of Construction
- JIS 304 Stainless Steel - Tag Plate
- SUS316 - Tag Plate
Mounting
- 2” Pipe Mounting - Transmitter
- Flange Mount - Diaphragm Seals
Operating Temperature
- 100° C (212° F) - Max.
Output
- 4-20 mA DC (2-Wire)
Power Supply Effect
- ± 0.005 % Per Volt (21.6-32 Vdc, 350 ohms)
Pressure Range
- Inches WC: -2,000 to 2,000
- kPa: -500 to 500
- mbar: -5,000 to 5,000
- 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 seconds, Max.
Screw Material
- 316 Stainless Steel
Static Pressure Effect
- Total Shift: ± 0.14 % / 0.98 MPa (10 kgf/cm²) for 3” Flange
- Total Shift: ± 0.25 % / 0.98 MPa (10 kgf/cm²) for 2” Flange
- Total Shift: ± 0.4 % / 0.98 MPa (10 kgf/cm²) for Wetted Part Material
- Zero Shift: ± 0.1 % / 0.98 MPa (10 kgf/cm²) for 3” Flange
- Zero Shift: ± 0.2 % / 0.98 MPa (10 kgf/cm²) for 2” Flange
- Zero Shift: ± 0.3 % / 0.98 MPa (10 kgf/cm²) for Wetted Part Material
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 - for Power Supply Voltage
Temperature Effect
- ± 1.4 %/50° C (122° F) Total Shift for 2” Flange & 3” Flange - Ambient Temperature Effect
- ± 2.0 %/50° C (122° F) Total Shift for Wetted Part Material - Ambient Temperature Effect
Update Time
- 0.125 seconds - Fast Response
Wetted Materials
- Hastelloy C-276
- JIS SUS316L
- Tantalum
- Titanium
Zero Offset
- External Zero is Continuously Adjustable with 0.01 % Incremental Resolution of Span
Documentation
Document
- EJA Series Fieldbus Communication pdf 939 KB
- EJA Series HART Protocol pdf 363 KB
- EJA Series PROFIBUS PA Communication pdf 930 KB
- EJA Series With HART® Communication Differential Pressure Transmitter pdf 1,000 KB
- EJA118W, EJA118N and EJA118Y Diaphragm Sealed Differential Pressure Transmitters pdf 2.1 MB
Manual
- EJA Series Differential Pressure and Pressure Transmitters Installation Manual *See Manual Change 15-009 16-004 16-018 pdf 4.8 MB
- EJA Series Fieldbus Communication Type *See Manual Change 10-007 12-004 16-004 pdf 1.4 MB
- EJA Series PROFIBUS PA Communication Type *See Manual Change 10-007 12-004 16-004 pdf 5.2 MB
- Manual Change 10-007 12-004 16-004 pdf 293 KB
- Manual Change 16-004 16-018 pdf 232 KB
