A gauge pressure (GP) transmitter compares a process pressure against local ambient air pressure. Gauge pressure transmitters have ports to sample the ambient air pressure in real-time. Today’s highly accurate gauge pressure transmitters can be affected by fluctuations in the local ambient pressure. Measurements above the ambient air pressure are represented as a positive number, while negative number represents measurements below ambient. A gauge pressure measurement is indicated by the letter ‘g’ following the unit of measure of the reading (i.e., inH₂O(g) or psig).
Example Industrial Applications: Open tank level, Line pressure, and Blanket pressure in a tank.
Yokogawa gauge pressure transmitters use digital DPharp sensor technology to get accurate, reliable readings to you quickly.
Which Series is Right for You?
Click the 'Details' tab above for a comparison of the different models available.
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EJA530E
Standard In-Line Mount Gauge Pressure Transmitter based on the EJA-E Series.
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EJX530A
In-Line Gauge Pressure Transmitter based on the EJX-A Series as a high performance model.
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EJX630A
In-Line Mount High Performance Gauge Pressure Transmitter based on the EJX-A Series.
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EJA430E
Standard Traditional-mount Gauge Pressure Transmitter based on the EJA-E series.
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EJX430A
Traditional-mount Gauge Pressure Transmitter based on the EJX-A Series as a high performance model.
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EJA438E
Standard Gauge Pressure Transmitter with Remote Diaphragm Seal based on the EJA-E Series.
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EJX438A
Gauge Pressure Transmitter with a Remote Diaphragm Seal based on the EJX-A Series as a high performance model.
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EJA440E
Standard Traditional-mount High Gauge Pressure Transmitter based on the EJA-E Series.
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EJX440A
Traditional-mount High Gauge Pressure Transmitter based on the EJX-A Series as a high performance model.
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EJXC40A (Digital Remote Sensor)
Digital Remote Sensor (DRS) Transmitter connects two pressure sensors, primary (high-pressure side) and secondary (low-pressure side) in a remote location, with DRS dedicated communication cable to measure differential pressure.
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EJXC80A, EJAC80E (Differential / Gauge Pressure Diaphragm Seal)
Diaphragm Seal System consists of differential pressure or gauge pressure transmitter with one or two diaphragm seal.
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EJXC50A, EJAC50E (Gauge Pressure Direct Mounted Seal)
Direct Mounted Diaphragm Seal System consists of gauge pressure transmitter with single direct mount diaphragm seal.
Details
Which Series is Right for You?
Refer to the General Specification sheet located under the 'Downloads' tab for detailed specifications.
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| EJA-E Series | EJX-A Series | |
|---|---|---|
| Accuracy | ||
| ± 0.025% | ● | |
| ± 0.040% | ● | ● |
| ± 0.055% | ● | |
| Stability | ||
| ± 0.1% of URL per 15 years | ● | |
| ± 0.1% of URL per 10 years | ● | |
| Response Time | ||
| 90 msec | ● | ● |
| Mounting | ||
| Traditional-mount | ● | ● |
| In-line Mount | ● | ● |
| Safety | ||
| FMEDA Report | ● | ● |
| IEC 61508 Certified (SIL 2) | ● | ● |
| Specification Conformance | ||
| ±3σ | ● | ● |
Middelen
DP Level transmitter configuration can be very time consuming. Yokogawa DPharp EJA/EJX Pressure transmitters realize reduction in man hours by smart level setup feature.
Yokogawa DPharp EJA/EJX Pressure transmitters do not need frequent re-zeroing due to superior long term stability, it contributes to reduce maintenance time.
Download this eBook and learn:
- The basic physics of pressure
- Different types of pressure sensors
- Features of pressure transmitters
- Pressure transmitters communications standards
- Key characteristics of pressure
- Common types of diaphragm seals
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