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EJA438E Diaphragm Sealed Pressure Transmitter
NegotiableUpdate on 05/06
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Overview
The EJA438E diaphragm sealed pressure transmitter adopts monocrystalline silicon resonant sensor technology, which is suitable for measuring the pressure and liquid level of high and low temperature, high vacuum, high viscosity, and easily crystallizable media. It has functions such as fast response, remote setting, and self diagnosis. The $r $n EJA-E series products provide communication protocols such as BRAN, HART/HART (1-5VDC low-power type), FF fieldbus, and PROFIBUS PA
Product Details
EJA438E Diaphragm Sealed Pressure Transmitter
Adopting monocrystalline silicon resonant sensor technology, it is suitable for measuring the pressure and liquid level of high and low temperatures, high vacuum, high viscosity, and easily crystallizable media. It has functions such as fast response, remote setting, and self diagnosis.
The EJA-E series products provide communication protocols such as BRAN, HART/HART (1-5VDC low-power type), FF fieldbus, and PROFIBUS PA
EJA438E Diaphragm Sealed Pressure Transmitter
Selection example: EJA438E-DHSCJ-910DA
Selection diagram of transmitter body
Selection of diaphragm sealing part
Product Introduction
EJA438E Overview
| Measurement Types | |
|---|---|
| Primary Variable | Gauge Pressure |
| Reference Accuracy | |
| Primary Variable | ±0.2% of Span |
| Response Time | |
| Primary Variable | 200 ms |
| Specification Conformance | |
| EJA-E Series | ±3σ |
EJA438E Process Connections
| Process connection Type | Size | Extension | Flange | |
|---|---|---|---|---|
 |
Flush Type | 3-inch 2-inch 1-½-inch |
N/A | JIS 10K, 20K, 40K, 63K |
| ANSI 150#, 300#, 600# | ||||
| JPI Class 150, 300, 600 | ||||
| DIN PN10/16, 25/40, 64 | ||||
 |
Extended Type | 4-inch 3-inch |
2-inch 4-inch 6-inch |
JIS 10K, 20K, 40K, |
| ANSI 150#, 300# | ||||
| JPI Class 150, 300 | ||||
| DIN PN10/16, 25/40 |
Standard diagnosis
Yokogawa Electric's transmitter has 40 self diagnostic checks to ensure smooth operation inside the transmitter. However, all transmitters on the market have a certain degree of self diagnostic checks. However, Yokogawa Electric has two competitors who have not provided them. Firstly, the transmitter has a backtesting technology that can perform real-time reverse checks on all calculations. Secondly, DPharp sensors are active sensors. This means that even if the process remains unchanged, the sensor will continue to provide signals. If the signal from the sensor is lost, the transmitter knows there is a problem. Competitors' analog sensors are passive. They do not provide continuous signals, so are sensors still working when there is no signal?
Good diagnosis=fewer accidents
sturdy structure
A structurally robust differential pressure transmitter can help reduce malfunctions in your factory. Yokogawa Electric's pressure transmitter has structural characteristics aimed at extending its lifespan beyond that of a factory. The four bolt pressure holding design, active DPharp sensor, PTFE coated 316L stainless steel flange gasket, and dual seal certified by ANSI/ISA 12.27.01- all design features extend the lifespan of the transmitter.
Attention: To comply with NACE MR0175/MR0103, please refer to the general specifications for each model.
Robustness=Reliability
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