Specifications
Parameter Specification
Model Yokogawa EJA430E
Measurement Principle Silicon resonant sensor
Accuracy ±0.04% of calibrated span
Long-term Stability ±0.1% of URL per 10 years
Measurement Range 0.5-10 kPa to 0.5-500 kPa (multiple ranges)
Output Signal 4-20 mA DC with HART/BRAIN protocol
Response Time Adjustable from 0.5 to 64 seconds
Operating Temperature -40°C to +85°C (electronics)
Process Temperature -40°C to +120°C (general)
Pressure Limit 16 MPa (static pressure)
Power Supply 10.5 to 42 V DC
Enclosure Rating IP67, NEMA 4X
Materials 316L SST, Hastelloy C276, Monel
Process Connection 1/4" NPT, 1/2" NPT, G1/2, others available
Weight Approx. 4.5 kg (with brackets)
Key Features
High accuracy: ±0.04% of calibrated span

Exceptional stability: ±0.1% URL per 10 years

Robust construction for harsh environments

Advanced diagnostics and self-check functions

Easy configuration and calibration

Wide rangeability up to 100:1

Global safety certifications (SIL2, ATEX, IECEx)

Performance Characteristics
Linearity: ±0.05% of URL

Hysteresis: ±0.03% of URL

Repeatability: ±0.03% of URL

Temperature effect: ±0.1% of URL per 10°C

Static pressure effect: ±0.1% of URL per 7 MPa

Environmental Conditions
Ambient temperature: -40°C to +85°C

Storage temperature: -50°C to +100°C

Relative humidity: 0-100% RH

Vibration effect: ±0.1% of URL at 2g, 10-200 Hz

Electrical Specifications
Power supply: 10.5-42 V DC

Output signal: 4-20 mA DC, HART/BRAIN digital

Load limitation: 0-1335 Ω at 42 V DC

Intrinsic safety: Available for hazardous areas

Process Connections
Flange materials: 316L SST, Hastelloy C276

O-ring materials: FKM, EPDM, PTFE

Isolating diaphragm: 316L SST, Hastelloy C276

Fill fluid: Silicone oil, fluorosilicone oil

Certifications and Standards
Safety: SIL 2 compliant

Explosion protection: ATEX, IECEx, FM, CSA

EMC: IEC 61326-1

Environmental: IP67, NEMA 4X

Typical Applications
Chemical processing

Oil and gas production

Power generation

Water and wastewater treatment

Pharmaceutical manufacturing

Food and beverage processing

HVAC systems