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    The exact EJA120E-JES5J-917DB/NF2 configuration remains subject to nameplate and sourcing verification.

EJA120E-JES5J-917DB/NF2

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Yokogawa EJA120E-JES5J-917DB/NF2 is a low-draft differential-pressure configuration with HART communication and NF2 intrinsic-safety approval for low-draft monitoring in combustion, ventilation and air-handling systems.
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Technical specifications for EJA120E-JES5J-917DB/NF2

  • Manufacturer:
    Yokogawa
  • Part Number:
    EJA120E-JES5J-917DB/NF2
  • Product Family:
    Yokogawa DCS system
  • Product Type:
    Draft-Range Differential Pressure Transmitter
  • Stock:
    1
  • Measurement / Function:
    very low differential or draft pressure
  • Output / Command Signal:
    4–20 mA DC with digital communication
  • Communication / Control Interface:
    HART 5/HART 7 protocol
  • Selected Span / Torque Class:
    0.1 to 1 kPa (0.4 to 4 inH2O)
  • Configurable Range / Travel:
    -1 to 1 kPa (-4 to 4 inH2O)
  • Process / Pneumatic Connection:
    1/4 NPT female cover-flange pressure ports without separate process connectors
  • Wetted / Service Materials:
    S-code wetted assembly with Hastelloy C-276 diaphragm
  • Bolting / Mechanical Interface:
    B7 carbon steel bolts and nuts
  • Installation Arrangement:
    Horizontal piping with left-side high pressure
  • Housing:
    Cast aluminum amplifier housing
  • Electrical Connection:
    1/2 NPT female, two entries with blind plug
  • Local Indicator:
    Digital indicator
  • Mounting Hardware:
    304 SST flat 2-inch pipe bracket
  • Ordering Options:
    The /NF2 suffix specifies NEPSI Ex ia IIC T4 Ga intrinsic-safety approval for HART/BRAIN protocol types.
  • Degree of Protection:
    IP66/IP67, Type 4X
  • Ambient Conditions:
    -40 to 85°C (-40 to 185°F), or -30 to 80°C with LCD
  • Process / Service Temperature:
    -40 to 120°C (-40 to 248°F)
  • Communication Load / I/O:
    a total loop-load range of 0 to 1290 Ω, with 250 to 600 Ω required for digital communication
  • Stability / Control Performance:
    Stability ±0.3% of URL per year
  • Manufacturer Reference:
    Yokogawa GS 01C31B03-01EN
  • Tariff Code:
    9026201090
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Temperature Monitoring Firmware

Features:

  • The NF2-approved low-draft configuration uses the 0.1 to 1 kPa (0.4 to 4 inH2O) capsule, horizontal piping with left-side high pressure and 1/2 NPT female, two entries with blind plug.
  • The NF2-approved low-draft configuration provides 4–20 mA DC with digital communication through HART 5/HART 7 protocol, with digital indicator.
  • The NF2-approved low-draft configuration combines 1/4 NPT female cover-flange pressure ports without separate process connectors, S-code wetted assembly with Hastelloy C-276 diaphragm and 304 SST flat 2-inch pipe bracket.
The EJA120E-JES5J-917DB/NF2 suffix sequence selects the 0.1 to 1 kPa draft capsule, no process connectors and the /NF2 approval within the EJA120E platform.

It resolves very low differential pressure for draft, airflow or filter-monitoring duties and supports remote setup through HART 5/HART 7 protocol.

Confirm draft capsule, high-pressure-side orientation or intrinsic-safety suffix before accepting the unit as a mechanical, electrical or functional replacement.

Availability is subject to Apter Power inventory and sourcing confirmation.
Verified resources for Yokogawa EJA120E-JES5J-917DB/NF2: Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • The NF2-approved low-draft configuration monitors furnace, duct or air-handling draft where a very low differential-pressure capsule is required.
  • The NF2-approved low-draft configuration supports clean-room, filter or fan supervision when the impulse-line design protects the low-pressure measurement.
  • The NF2-approved low-draft configuration provides draft feedback to combustion, ventilation or environmental control systems through a compatible host.
  • The standard electronics are specified for -40 to 85°C (-40 to 185°F), or -30 to 80°C with LCD, subject to the tighter limit imposed by the selected indicator or approval.
  • The process interface follows -40 to 120°C (-40 to 248°F), with fill-fluid and approval options checked for any reduced range.
  • Temperature effects are evaluated against the selected 0.1 to 1 kPa (0.4 to 4 inH2O) capsule rather than a neighboring measurement code.
  • Pressure is converted to 4–20 mA DC with digital communication, while HART 5/HART 7 protocol exposes measurement and diagnostic variables to a compatible host.
  • Local visibility is provided by digital indicator, subject to the selected display and range-setting capability.
  • The configured range of -1 to 1 kPa (-4 to 4 inH2O) must be compared with the process design limits during commissioning.
  • The host must use a device description that matches the installed HART 5/HART 7 protocol revision and transmitter electronics.
  • Firmware identification should be read from the live device before loading parameters or selecting a replacement file.
  • Local display functions depend on the digital indicator and cannot be inferred from the base transmitter family.
Description
EJA120E-JES5J-917DB/NF2 specifies a complete EJA120E draft-range differential pressure transmitter configuration, including the 0.1 to 1 kPa draft capsule, no process connectors and the /NF2 approval. The full code is required for an exact match.

It resolves very low differential pressure for draft, airflow or filter-monitoring duties and supports remote setup through HART 5/HART 7 protocol. The configuration is intended for low-draft measurement in combustion, ventilation or air-handling systems when the process and installation limits are satisfied.

A replacement should be selected from the complete nameplate rather than the base series alone. Confirm draft capsule, high-pressure-side orientation or intrinsic-safety suffix, along with the process and site requirements.
Alternative Names
EJA120E-JES5J-917DB/NF2 Yokogawa EJA120E-JES5J-917DB/NF2 EJA120E JES5J 917DB NF2 EJA120E-JES5J-917DB-NF2 EJA120EJES5J917DBNF2 Yokogawa EJA120E Draft-Range Differential Pressure Transmitter Yokogawa EJA120E-JES5J-917DB/NF2 Draft-Range Differential Pressure Transmitter Yokogawa DPharp EJA EJA120E-JES5J-917DB/NF2
Technical notes
Do not energize the NF2 loop until the associated apparatus and field wiring satisfy the certificate entity values for the installed hazardous area.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What does the /NF2 suffix add to EJA120E-JES5J-917DB/NF2?
It specifies the NEPSI Ex ia IIC T4 Ga intrinsic-safety approval for the applicable HART or BRAIN construction. The offered nameplate must show that approval.
How should a safety barrier be selected for EJA120E-JES5J-917DB/NF2?
Match the barrier output, entity parameters, cable capacitance and inductance, grounding method and area classification to the transmitter's certified control drawing.
Can EJA120E-JES5J-917DB/NF2 monitor furnace draft in a classified area?
Yes, when the very-low differential-pressure range suits the draft profile and the complete intrinsically safe loop is installed under the /NF2 approval conditions.
What traceability should be requested for an EJA120E-JES5J-917DB/NF2 stock unit?
Request photographs of the order code, /NF2 approval marking and serial information so the offered unit can be tied to its certificate and supply condition.
Why must the approval suffix be preserved when replacing EJA120E-JES5J-917DB/NF2?
Omitting /NF2 can remove the required hazardous-area certification even when the capsule, process ports and signal are otherwise similar.
Which files should be reviewed before requesting EJA120E-JES5J-917DB/NF2 for a hazardous loop?
Review Yokogawa GS 01C31B03-01EN, the applicable /NF2 certification and the site's intrinsic-safety loop drawing, then submit all three with the inquiry.

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