Parameters & Specifications
Category Specification
Model Code EJA438E (This is the base model; a full model code includes suffixes for seal type, range, and material, e.g., EJA438E-N*****)
Type Differential Pressure / Pressure Transmitter with Remote Seals
Measuring Range (URL) Various options, typically from 0.5 kPa to 10 MPa (2.0 inH₂O to 1450 psi). The exact Upper Range Limit (URL) is defined by the range code in the model suffix.
Accuracy ±0.055% of URL (for spans between 3.5 to 10 kPa)
±0.075% of URL (for spans between 0.5 to 3.5 kPa)
Accuracy includes the effects of the remote seal system.
Remote Seal Options • Capillary Length: Standard lengths from 1.5 to 10 meters (5 to 33 ft).
• Seal Types: Various flange types (e.g., ISO Flange, DIN Flange, JIS Flange), threaded, or sanitary connections.
• Fill Fluid: Silicone Oil, Halocarbon Oil, etc., selected based on process temperature and media compatibility.
Process Connection Defined by the remote seal chosen (e.g., 3-inch 150# RF flange, 1/2" NPT).
Wetted Parts (Seal) Selectable based on process media; common materials include SUS316L, Hastelloy C-276, Monel, Tantalum.
Output Signal 4 to 20 mA DC, two-wire with digital overlay using HART® 5/7/8 protocol. BRAIN and FOUNDATION Fieldbus protocols are also available.
Power Supply 10.5 to 55 V DC for 4-20 mA HART
(16.4 to 55 V DC for communication)
Sensor Technology Single-Crystal Silicon Resonant Sensor
Turn-Down Ratio 100:1
Response Time Depends on capillary length and fill fluid. Can be adjusted via software.
Stability ±0.1% of URL per 10 years (typical)
Process Temperature -90 to 400 °C (-130 to 752 °F)
Limited by the fill fluid and seal material selection.
Ambient Temperature -50 to 80 °C (-58 to 176 °F)
Static Pressure Limit Up to 42 MPa (6090 psi), depending on the seal rating.
Protection Rating IP67 (NEMA 4X)
Electrical Connection 1/2-14 NPT Conduit connection
Display Standard. Integral LCD indicator with local zero/span adjustment buttons.
Diagnostics Comprehensive self-diagnostics for hardware, process conditions (e.g., impulse line clogging detection), and configuration errors.
Safety Certifications Available with SIL 2/3 (Functional Safety) certification and international explosion-proof approvals (ATEX, IECEx, FM, CSA).