The high performance draft range differential pressure transmitter EJA120E features single crystal silicon resonant sensor and is suitable to measure liquid, gas, or steam flow as well as liquid level, density and pressure. EJA120E outputs a 4 to 20 mA DC signal corresponding to the measured diff erential pressure.
Other key features include quick response, remote set-up using communications and self diagnostics. FOUNDATION Fieldbus, PROFIBUS PA and 1 to 5 V DC with HART (Low Power) protocol types are also available. EJA-E series models in their standard configuration, with the exception of the Fieldbus, PROFIBUS and Low Power types, are certified as complying with SIL 2 for safety requirement.
Measurement Span/Range | kPa | inH2O (/D1) | mbar (/D3) | mmH2O (/D4) | |
E | Span | 0.1 to 1 | 0.4 to 4 | 1 to 10 | 10 to 100 |
Range | -1 to 1 | -4 to 4 | -10 to 10 | -100 to 100 | |
The EJA120E's true draft range design and high precision make it ideal for measuring flow, level, density, and pressure in applications requiring micro-differential pressure monitoring. Key industry applications include:
Power generation: Boiler draft control, air preheater differential pressure monitoring
Chemical & petrochemical: Filter clogging detection, reactor pressure balancing, liquid level measurement in sealed tanks
Pharmaceuticals & food processing: Cleanroom pressure control, HVAC system monitoring
Water & wastewater: Pipeline flow measurement, filter differential pressure monitoring
Metallurgy: Furnace pressure control, gas flow measurement in smelting processes
As a flagship model in Yokogawa's EJA-E series, the EJA120E Draft Range Differential Pressure Transmitter represents the latest evolution of the renowned DPharp pressure transmitter family. Launched in 2012, this transmitter seamlessly combines the rugged reliability of the proven EJA series with the high-performance capabilities of the premium EJX-A series, delivering the exceptional quality and precision that industries worldwide have come to expect from Yokogawa. Specifically designed for draft range applications, the EJA120E is engineered to measure differential pressure of liquids, gases, or steam with unparalleled accuracy, making it an indispensable tool for optimizing process efficiency and safety across diverse industrial sectors.
Item | valve |
Type | Differential pressure transmitter |
Measurement Range | 1 mbar to 10 mbar |
Accuracy | ±0.2% of span, 0.09% available with /hac option |
Stability | ±0.3% per 1 year |
Response Time | 150 ms |
Output Signal | Two - conductor 4 - 20 mA DC with digital communication, linear or square root output |
Communication Protocol | HART 5/7, 1 - 5 V DC HART 7 (low - power), FOUNDATION Fieldbus, PROFIBUS PA, BRAIN |
Power Supply | 10.5 - 42V DC (general and explosion - proof types); 10.5 - 32V DC with arrester (option code /A); 10.5 - 30V DC (intrinsic safety, n - type, non - flammable type); 9 - 28V DC for 1 - 5V HART (ordinary and explosion - proof types) |
Load | 250 - 600Ω for 4 - 20 mA HART/BRAIN; ≥1MΩ for 1 - 5V HART (three - wire connection, cable length may affect output signal accuracy) |
Protection Class | IP68 (optional, recommended to use sealed cable gland) |
Certification | EXIDA and TÜV SIL 2/3 certified; ATEX, FM, CA, IECEx; Marine: LR, ABS, BV and DNV - GL |
Local Indicator | Optional, can display variables such as DP, SP, capsule temperature, alarm codes, and a bar graph |
Self - diagnosis Function | 40 self - diagnostic checks, including patented back - check technology |
Mounting | Traditional - mount |
Wetted Parts Material | coated 316L stainless steel flange gasket (typical), and other materials are optional according to requirements |
Packaging: Original cardboard box packaging
Esito (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
We can offer rosemount, Endress+Hauser, yokogawa, Siemens, ABB,Fisher,Koso, Samson, Abzil, NELES,UE etc, Brands.
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