Yokogawa EJA110E Differential Pressure Transmitter
Yokogawa High Performance Eja110e Differential Pressure Transmitter
Product Description
YOKOGAWA Differential Pressure Transmitter EJA110E
The EJA110E is a high - performance differential pressure transmitter by Yokogawa Electric Corporation. It features a single - crystal silicon resonant sensor and is designed to measure liquid, gas, or steam flow, as well as liquid level, density, and pressure. The transmitter outputs a 4 - 20 mA DC signal corresponding to the measured differential pressure. It can also measure static pressure, which can be displayed on the integral indicator or remotely monitored via BRAIN or HART communications.
Applications
Flow Measurement: It is widely used in industrial processes to measure the flow rate of various fluids, such as water, oil, and gas, by detecting the differential pressure across a flow - measuring element like an orifice plate or venturi tube.
Level Measurement: Suitable for measuring the liquid level in tanks and vessels. By measuring the differential pressure caused by the liquid column, the height of the liquid level can be accurately obtained.
Density Measurement: Can be used to measure the density of liquids. Based on the relationship between pressure and density, the density of the measured medium can be calculated through differential pressure measurement.
Pressure Measurement: Capable of measuring the pressure of gases, liquids, or steam in industrial pipelines and equipment.
Level Measurement: Suitable for measuring the liquid level in tanks and vessels. By measuring the differential pressure caused by the liquid column, the height of the liquid level can be accurately obtained.
Density Measurement: Can be used to measure the density of liquids. Based on the relationship between pressure and density, the density of the measured medium can be calculated through differential pressure measurement.
Pressure Measurement: Capable of measuring the pressure of gases, liquids, or steam in industrial pipelines and equipment.
Benefits
Easy to Use and Maintain: It supports various communication protocols such as HART, BRAIN, FOUNDATION Fieldbus, and PROFIBUS PA, enabling convenient communication and remote monitoring. The built - in display can show all measurement data, alarm codes, and bar graphs, and can be programmed according to user needs. In addition, it has 40 self - diagnosis functions, which can quickly detect sensor failures and other problems, facilitating maintenance.
High - accuracy Measurement: The DPharp digital sensor directly outputs a digital signal, eliminating the need for analog - to - digital conversion and reducing errors. It can measure differential pressure, static pressure, and temperature simultaneously, and perform dynamic compensation on the measured values based on real - time data to eliminate the influence of temperature and static pressure changes, achieving higher accuracy.
Specification
Output Signal | 4 - 20 mA HART/BRAIN (output signal code D&J), two - wire system with digital communication. The signal can be set to linear or square - root. The BRAIN or HART FSK protocol is superimposed on the 4 - 20 mA signal, and the output range is 3.6 mA - 21.6 mA. There is also a 1 - 5 V HART (output signal code Q) option, which is a three - wire or four - wire low - power type that can be set to linear or square - root. |
Response Time | Primary variable (differential pressure): 90 ms; Secondary variable (static pressure): 360 ms |
Accuracy | Primary variable: ±0.055% of span; Secondary variable: ±0.5% of span |
Stability | ±0.1% of URL per 10 years |
Over - pressure Effect | ±0.03% of URL for the primary variable |
Rangeability | 100:1 for the primary variable |
Measurement Span | F range: 0.5 - 5 kPa (2 - 20 inH2O), - 5 - 5 kPa (- 20 - 20 inH2O); L range: 0.5 - 10 kPa (2 - 40 inH2O), - 10 - 10 kPa (- 40 - 40 inH2O); M range: 1 - 100 kPa (4 - 400 inH2O), - 100 - 100 kPa (- 400 - 400 inH2O); H range: 5 - 500 kPa (20 - 2000 inH2O), - 500 - 500 kPa (- 2000 - 2000 inH2O); V range: 0.14 - 14 MPa (20 - 2000 psi), - 0.5 - 14 MPa (- 71 - 2000 psi) |
Wetted Parts Material | Cover flange and process connector: ASTM CF - 8M; Bolts and nuts material: 316L SST |
Process Connections | Without process connector (1/4 NPT female on the cover flanges) |
Installation | Horizontal piping and left side high pressure |
Amplifier Housing | Cast aluminum alloy |
Electrical Connection | M20 female, two electrical connections and a blind plug |
Integral Indicator | Digital indicator |
Mounting Bracket | 304 SST 2 - inch pipe mounting, flat type (for horizontal piping) |
Safety Certification | Exida and TÜV SIL 2/SIL 3 certified |
Maximum Working Pressure | 2,300 psi (3,600 psi option) |
