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.