EJXC80A, EJAC80E Differential / Gauge Pressure Diaphragm Seal System
EJXC80A, EJAC80E
Diaphragm Seal System consists of gauge pressure or differential pressure transmitter with one or two diaphragm seal. Suitable for various kinds of pressure measurement.
Key Features
- High performance, high accuracy and high reliability.
- High temperature and high vacuum use (0.013 kPa abs~)
- Fast response: 200 ms
Diaphragm Seal System can provide the solution …
For measurement of ;
- high/low temperature fluids
- highly corrosive/high viscosity fluids
- the fluids which may cause clogging of impulse piping in the low temperature
- toxic fluids
- Various process connection size
Compensating Capillary Design
Compensation capillary type has a compensating capillary to help balance the volume and temperature of the fill fluids between high and low pressure side capillaries. This solution reduces the influence of ambient temperature drift whether it is caused by swings day-to-night, season-to-season, or shady-to-sunny.
This compensation capillary is attached to the high pressure side of the transmitter and runs along the low-pressure capillary. It is actually bundled to it. This allows the volume of fill fluid to be the same between the two sides of the transmitter and allows for ambient temperature balance between them.
Ambient Temperature Drift
Ambient temperature is the temperature around the process. If the tank is located outdoors, the transmitter and capillary system could see temperature swings day-to-night, season-to-season, or even shady-to-sunny. This change in temperature affects the fill fluid just like any liquid. The fluid contracts and expands within the capillary with the change. This can cause inaccuracy in the reading. The reading reflects a change in the fill fluid instead of an actual change in the level.
Comparison data
Following data shows the effect of temperature drift due to sunshine on both the compensation-type and standard-type differential pressure transmitters. The effect of sunlight was simulated by changing the temperature only within the area extending 50cm from the end of the capillary tube and the diaphragm seal on the low pressure side.
When the temperature of the low pressure side rose by 50ºC, the output of the standard-type increased by 14.0% in the 10 kPa measurement range. Meanwhile, the output of the Compensation-type increased by only 0.8%, which is 13.2% difference of the change in the standard-type.
Remote Mount Flanged Diaphragm Seal System
- EJXC80A Differential pressure remote mount flanged diaphragm seal system
| Measurement Span | Range | ||
|---|---|---|---|
| M | 2 to 100 kPa | −100 to 100 kPa | |
| H | 10 to 500 kPa | −500 to 500 kPa | |
| V | Flush type | 0.28 to 14 MPa | −0.5 to 14 MPa |
| Extended type | 0.28 to 7 MPa | −0.5 to 7 MPa | |
- EJAC80E Differential pressure remote mount flanged diaphragm seal system
| Measurement Span | Range | ||
|---|---|---|---|
| M | 2.5 to 100 kPa | −100 to 100 kPa | |
| H | 25 to 500 kPa | −500 to 500 kPa | |
| V | Flush type | 0.28 to 14 MPa | −0.5 to 14 MPa |
| Extended type | 0.28 to 7 MPa | −0.5 to 7 MPa | |
- EJXC80A Gauge pressure remote mount flanged diaphragm seal system
| Measurement Span | Range | ||
|---|---|---|---|
| A | 0.035 to 3.5 MPa | −0.1 to 3.5 MPa | |
| B | Flush type | 0.16 to 16 MPa | −0.1 to 16 MPa |
| Extended type | 0.16 to 7 MPa | −0.1 to 7 MPa | |
- EJAC80E Gauge pressure remote mount flanged diaphragm seal system
| Measurement Span | Range | ||
|---|---|---|---|
| A | 0.06 to 3.5 MPa | −0.1 to 3.5 MPa | |
| B | Flush type | 0.46 to 16 MPa | −0.1 to 16 MPa |
| Extended type | 0.46 to 7 MPa | −0.1 to 7 MPa | |
| Item | Specifications |
|---|---|
| Applicable Products (transmitter) | Differential Pressure Transmitter: EJX110A, EJA110E Gauge Pressure Transmitter: EJX430A, EJA430E |
| Process connection size |
|
Differential pressure (DP) level measurement is among the most common methods to determine the quantity of chemicals or raw materials inside a tank. Accurate quantification simply requires DP and the density. However, for tanks located outdoors, ambient temperature conditions can interfere with the level measurement due to the expansion and contraction of oil inside capillary tubes that are connected to diaphragm seals.
Brochures
Instruction Manuals
General Specifications
Software
Technical Information
- Functional Safety Manual (675 KB)
- Functional Safety Manual exida Certification (411 KB)
Engineering Tools
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- EJXC80A, EJAC80E Diaphragm Seal System, EJX110A, EJA110E with Remote Mount Flanged Diaphragm Seal for either High or Low Side (338 KB)
- EJXC80A, EJAC80E Diaphragm Seal System, EJX110A, EJA110E with Direct Mnt Flanged Seal(high) and Remote Mnt Flanged Seal(low) (365 KB)
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- C80FW Remote Mount Flanged Diaphragm Seal (Flash Type), Raised Face, Capillary Connected to the Back of Diaphragm Seal Unit (211 KB)
- C80FE Remote Mount Flanged Diaphragm Seal (Extended Type) (260 KB)
- C81FA, C82FA Inner Diaphragm Adapter Connection Seal, Raised Face(RF) (323 KB)
- C81FA, C82FA Inner Diaphragm Adapter Connection Seal, Ring Joint(RJ) (300 KB)
- C81FD, C82FD Inner Diaphragm Flanged Seal, Raised Face(RF) (313 KB)
- C81FD, C82FD Inner Diaphragm Flanged Seal, Ring Joint(RJ) (293 KB)
- C70SW Remote Mount Hygienic Diaphragm Seal (Flush Type) (161 KB)
- C70SE Remote Mount Hygienic Diaphragm Seal (Extended Type) (179 KB)
- C10FR Flushing Connection Ring (232 KB)