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EJA120A-EES5A-92NA

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Yokogawa EJA120A-EES5A-92NA is a legacy low-draft differential-pressure configuration with HART communication and no integral indicator for low-draft monitoring in combustion, ventilation and air-handling systems.
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Technical specifications for EJA120A-EES5A-92NA

  • Manufacturer:
    Yokogawa
  • Part Number:
    EJA120A-EES5A-92NA
  • 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 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:
    SCS14A cover flange with SUS316L capsule and Hastelloy C-276 diaphragm
  • Bolting / Mechanical Interface:
    SCM435 bolts and nuts
  • Installation Arrangement:
    Horizontal impulse piping with left-side high pressure
  • Housing:
    Low-copper cast-aluminum housing
  • Electrical Connection:
    1/2 NPT female, two entries without blind plug
  • Local Indicator:
    No integral indicator
  • Mounting Hardware:
    SECC carbon-steel flat 2-inch pipe bracket
  • Ordering Options:
    No additional option suffix is included in this order code.
  • Degree of Protection:
    IP67, Type 4X
  • Ambient Conditions:
    -40 to 85°C (-40 to 185°F)
  • Process / Service Temperature:
    -40 to 120°C (-40 to 248°F)
  • Communication Load / I/O:
    0 to 1335 Ω operation; 250 to 600 Ω digital communication
  • Stability / Control Performance:
    Legacy EJA-A stability and accuracy apply as stated in GS 01C21B03-00EN
  • Manufacturer Reference:
    Yokogawa GS 01C21B03-00EN
  • 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 Performance Connectivity Humidity Range

Features:

  • The legacy low-draft configuration without local indication uses the 0.1 to 1 kPa (0.4 to 4 inH2O) capsule, horizontal impulse piping with left-side high pressure and 1/2 NPT female, two entries without blind plug.
  • The legacy low-draft configuration without local indication provides 4–20 mA DC with digital communication through HART protocol, with no integral indicator.
  • The legacy low-draft configuration without local indication combines 1/4 NPT female cover-flange pressure ports without separate process connectors, SCS14A cover flange with SUS316L capsule and Hastelloy C-276 diaphragm and SECC carbon-steel flat 2-inch pipe bracket.
The supplied EJA120A-EES5A-92NA variant is distinguished by legacy E-output HART electronics, no display and carbon-steel bracket.

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

Match legacy host revision, bracket material or terminal-entry plugs to the existing assembly before wiring, pressurization or actuator movement.

Availability is subject to Apter Power inventory and sourcing confirmation.
Verified resources for Yokogawa EJA120A-EES5A-92NA: 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 legacy low-draft configuration without local indication measures low draft in furnaces, ducts or ventilation systems that retain the legacy EJA-A instrument design.
  • The legacy low-draft configuration without local indication supports combustion-air and building-pressure monitoring where the installed range matches the draft capsule.
  • The legacy low-draft configuration without local indication supplies draft feedback for air-handling or combustion-control loops that retain the same piping orientation.
  • Performance is based on the selected 0.1 to 1 kPa (0.4 to 4 inH2O) capsule and the calibrated range established inside -1 to 1 kPa (-4 to 4 inH2O).
  • The documented response and accuracy characteristics apply under the reference conditions stated in Yokogawa GS 01C21B03-00EN.
  • For performance acceptance, accuracy effects from ambient temperature, static pressure and mounting position must be included in the loop uncertainty review.
  • The field cable enters through 1/2 NPT female, two entries without blind plug, while the process side uses 1/4 NPT female cover-flange pressure ports without separate process connectors.
  • Signal and supply share the documented two-wire loop for the selected HART protocol output configuration.
  • Grounding, shielding and sealing must suit the horizontal impulse piping with left-side high pressure arrangement and the installed conduit system.
  • The official family specification permits 5 to 100% relative humidity at 40°C when the housing is correctly closed.
  • Moisture control depends on intact cover seals and cable-entry hardware suited to the installed conduit system.
  • Condensation must be prevented from migrating through impulse piping or the terminal compartment during service.
Description
EJA120A-EES5A-92NA is an order-code-specific EJA120A draft-range differential pressure transmitter. Its mechanical, electronic and option selections include legacy E-output HART electronics, no display and carbon-steel bracket.

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

Do not approve a substitute from appearance or family name alone. Check legacy host revision, bracket material or terminal-entry plugs, the process connection and the installed loop documentation.
Alternative Names
EJA120A-EES5A-92NA Yokogawa EJA120A-EES5A-92NA EJA120A EES5A 92NA EJA120AEES5A92NA Yokogawa EJA120A Draft-Range Differential Pressure Transmitter Yokogawa EJA120A-EES5A-92NA Draft-Range Differential Pressure Transmitter Yokogawa DPharp EJA EJA120A-EES5A-92NA
Technical notes
Retain a device description compatible with this legacy EJA-A HART electronics generation; an EJA-E parameter file is not a validated migration path.
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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 local-display provision is included in EJA120A-EES5A-92NA?
No integral indicator is selected. Process values must be viewed through the receiving loop, communicator or control system rather than on a local LCD.
How should EJA120A-EES5A-92NA be integrated with legacy HART maintenance tools?
Confirm that the host or handheld supports the EJA-A device revision and maintain the required analog-loop power and resistance for HART communication.
Which legacy draft application can EJA120A-EES5A-92NA continue to serve?
It can maintain very-low differential-pressure or draft measurement where the E capsule, horizontal left-high-pressure piping and no-display construction match the installed design.
How should lifecycle risk be reflected when sourcing EJA120A-EES5A-92NA?
Ask for lead time, offered condition, manufacturing or storage evidence and return terms, because legacy EJA-A availability may depend on specific stock rather than current production.
What should be compared before an EJA-E series device replaces EJA120A-EES5A-92NA?
Compare mounting dimensions, process-port geometry, bracket material, housing, protocol revision, approvals and configured range; a newer family name does not prove drop-in interchangeability.
Which legacy manual reference supports an EJA120A-EES5A-92NA inquiry?
Use Yokogawa GS 01C21B03-00EN and provide the installed hook-up drawing, tag data and complete nameplate so the older ordering selections can be interpreted correctly.