Spot old model Yokogawa EJA210/220A flange-mounted intelligent differential pressure transmitter
The Yokogawa EJA210/220A flange-mounted differential pressure transmitter is a key model in the Yokogawa EJA transmitter series from Chongqing Chuan Instrument, primarily used for measuring the level and density of crystalline or precipitating liquids. The Yokogawa EJA210/220A intelligent differential pressure transmitter utilizes advanced single crystal silicon resonant sensors, minimizing the effects of overvoltage, temperature changes, and static pressure, resulting in high stability and reliability, thus providing unparalleled long-term temperature performance. It converts level and density into a 4-20 mADC current signal output.
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Pressure transmitter
Yokogawa EJA Transmitter
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Detailed introduction
1. Product Overview:Yokogawa EJA210/220A flange-mounted differential pressure transmitter is from Chongqing Chuan Instrument.Yokogawa EJA transmitter-A series is mainly used for measuring the level and density of crystalline or precipitating liquids with a flange-mounted intelligent differential pressure transmitter. The Yokogawa EJA210/220A intelligent differential pressure transmitter uses advanced single crystal silicon resonant sensors to minimize the effects of overvoltage, temperature changes, and static pressure, providing high stability and reliability, thus offering unparalleled long-term temperature. It converts level and density into a 4-20 mADC current signal output. It can communicate through three digital protocols, including brain controller, HART handheld controller, and CENTUMCS/μXL.
Here are the key features of the Yokogawa EJA210A and EJA220A flange-mounted differential pressure transmitters:
High Accuracy: ±0.075% of span, ensuring precise level measurement.
Long-Term Stability: ±0.1% over 5 years, reducing calibration frequency.
DPharp Digital Sensor: Delivers enhanced diagnostics and reliability.
Flange Options:
EJA210A: Flush flange for clean process fluids.
EJA220A: Extended flange for sticky or viscous media.
Capsule Ranges:
M capsule: ±400 inH₂O
H capsule: ±2000 inH₂O
Process Connections: Compatible with JIS, ANSI, JPI, and DIN standards.
Rugged Construction: Built for harsh industrial environments.
Simplified Maintenance: Diagnostics and modular design reduce downtime.
2. Product Specifications:
| Parameter | EJA210A | EJA220A |
|---|---|---|
| Mounting Type | Flush flange | Extended flange |
| Application | Clean process fluids | Sticky or viscous media |
| Accuracy | ±0.075% of span | ±0.075% of span |
| Long-Term Stability | ±0.1% over 5 years | ±0.1% over 5 years |
| Sensor Type | DPharp digital sensor | DPharp digital sensor |
| Pressure Range | M: ±400 inH₂O / H: ±2000 inH₂O | M: ±400 inH₂O / H: ±2000 inH₂O |
| Process Connections | JIS, ANSI, JPI, DIN | JIS, ANSI, JPI, DIN |
| Output Signal | 4–20 mA DC with HART® or BRAIN | 4–20 mA DC with HART® or BRAIN |
| Explosion Protection | Multiple international standards | Multiple international standards |
| Ingress Protection | IP66/IP67, NEMA 4X | IP66/IP67, NEMA 4X |
| Operating Temp | -40 to +85°C | -40 to +85°C |
3. Frequently Asked Questions
1. What are the EJA210A and EJA220A used for?
They are designed for liquid level measurement in pressurized tanks and vessels, using differential pressure via flange mounting.
2. What’s the difference between EJA210A and EJA220A?
EJA210A: Flush flange, ideal for clean fluids.
EJA220A: Extended flange, better for sticky or viscous media.
3. Are these models still available?
No, both models were discontinued in 2016. Their successors include the EJA210E and EJX210A series.
4. What is the accuracy and stability?
Accuracy: ±0.075% of span
Stability: ±0.1% over 5 years
5. What communication protocols are supported?
They support 4–20 mA DC output with HART® or BRAIN communication.
6. What kind of sensor do they use?
They use Yokogawa’s DPharp digital sensor, known for high reliability and self-diagnostics.
7. What are the available capsule ranges?
M capsule: ±400 inH₂O
H capsule: ±2000 inH₂O
8. What certifications are available?
They comply with multiple international explosion protection standards and offer IP66/IP67, NEMA 4X ingress protection.
9. Can I still get support or documentation?
Yes, provides manuals, specs, and replacement guidance.
Friendly reminder:Due to the complex selection parameters of the Yokogawa EJA210/220A flange-mounted intelligent differential pressure transmitter, if you want specific product selection and model quotations, please feel free to consult online.
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