Yokagawa EJA430E Gauge Pressure Transmitter
± 0.055% Accuracy (0.04% Accuracy optional)
± 0.1% Stability per 10 years
90 ms Response Time
Exida and TUV SIL 2/3 Certified
Local Parameter Setting (LPS)
Standard Diagnostics
Yokogawa's transmitter has 40 self-diagnostic checks to ensure that everything is running smoothly within the transmitter. But, all transmitters on the market have a level self-diagnostic checks. However, Yokogawa has two that are not offered by competitors. First, the transmitter features a patented Back-check Technology that reverse checks all calculations in real-time. Second, the DPharp sensor is an active sensor. This means that the sensor is constantly supplying a signal even when the process has not changed. If the signal is lost from the sensor, the transmitter knows there is an issue. Competitor's analog sensors are passive. They do not supply a continual signal, so, is the sensor still working when there is no signal
EJA430E Overview
Refer to the General Specification sheet located under the 'Downloads' tab for detailed specifications.
| Measurement Types | |
|---|---|
| Primary Variable | Gauge Pressure |
| Reference Accuracy | |
| Primary Variable | ±0.055% of Span ±0.04% of Span (with /HAC option) |
| Stability (All Normal Operating Conditions) | |
| Primary Variable | ±0.1% of URL per 10 years |
| Response Time | |
| Primary Variable | 90ms |
| Rangeability | |
| Primary Variable | 100:1 |
| Burst Pressure (Absolute) | |
| EJA510E | Wetted Parts code S: 10,000 psi All other Wetted Parts: 6,800 psi |
| Specification Conformance | |
| EJA-E Series | ±3σ |
Functional Safety
All Yokogawa pressure transmitters are designed and certified to IEC61508:2010 Parts 1 through 7 and IEC61511:2004 Parts 1 through 3. They are certified for single transmitter use in SIL 2 safety applications and dual transmitter use in SIL 3 safety applications with no special option required. With Yokogawa's transmitters, no longer will you have to maintain two seperate inventories - one for production applications and one for safety applications.
Active Sensor Technology
The DPharp sensor is an active sensor. This means that the sensor is constantly supplying a signal even when the process has not changed. If the signal is lost from the sensor, the transmitter knows there is an issue. Competitor's analog sensors are passive. They do not supply a continual signal, so is the sensor still working when there is no signal? An active sensor is inherently safe.
Simple Troubleshooting
When your transmitter is 'alarming', you do not have the time to look for the manuals and go through them trying to figure out what is wrong; you need to get the transmitter up and operating again as quick as possible. Yokogawa's pressure transmitters have a simple description of the error code available on the local display. This simple description may help you correct the problem and get back to making product quickly. If you need more help, the manual does have a full description of all codes and suggest corrective actions.
