The EJX438A is a gauge pressure transmitter featuring remote diaphragm seals and is part of the EJX-A series. It can be used to measure liquid, gas, or steam pressure. EJX438A outputs a 4 to 20 mA DC signal corresponding to the measured pressure. It also features quick response, remote setup and monitoring via BRAIN or HART communications, and diagnostics and optional status output for pressure high/low alarm.
The EJX438A is a Gauge Pressure Transmitter with a Remote Diaphragn Seal in the series.
The EJX438A Standard features include:
- ± 0.15% Accuracy
- 200 ms Response Time
- Exida and TUV SIL2 / SIL3 Certified
- Capillary Fill Fluid Density Compensation
- Local Parameters Setting (LPS)
At it’s heart, Yokogawa’s differential pressure transmitter with DPharp digital sensor offers the performance and device intelligence needed to get greater insight into your process.
Yokogawa’s DPharp digital sensor offers twice the performance and stability of the competitor’s analog sensors. The DPharp uses the latest in IC Chip-style design and manufacturing technology. Analog sensors are based on older design technology. Although analog sensors are good, the modern DPharp sensor out performs them. A Yokogawa transmitter with DPharp digital sensor will give you the consistent, reliable, accurate measurement you need.
All remote seal systems on the market use fill fluid to ‘transmit’ the process pressure from the remote diaphragm seal to the pressure sensor in the transmitter. The physical properties of the fill fluid change as process temperature and ambient temperature change causing the transmitter to measure inaccurately. This effect gets worse as the capillaries get longer. The key is to filter out this ‘noise’ to get an accurate, consistent, reliable measurement. Yokogawa has a superior design, manufacturing process, and features to reduce this ‘noise’.
Signal characterization is a versatile function available on all Yokogawa pressure transmitters. The function is used to compensate the analog 4 to 20 mA output signal for non-linear applications. Such applications include tank strapping or flow measurements; but, it can be used in any application where the relationship between the pressure input and the desired output signal are known. This feature can use up to 10-points.
To learn about other Gauge Pressure Transmitters available at BBP, click here.