Newsletter
|
1、product feature：
Excellent performance and stability
Yokogawa EJA differential pressure transmitter adopted monocrystalline silicon resonant sensor technology., as there is no lag phenomenon for the pressure or temperature changes, is the ideal material. Monocrystalline silicon resonant sensor, over voltage, temperature and static pressure with minimal impact, thus providing unparalleled long-term stability。
Small, light weight design
Due to adopt ASIC amplifier design, made the packaging smaller and bellows construction and the miniaturization of the flange, the weight of it down to half its original models. ASIC design not only reduced the number of parts, but improve the reliability of the amplifier。
Field bus communication ability
Fieldbus is a two-way digital communication system, the innovation of technology is to configure the instrument control system, also it is a good prospect of updated products, that used to replace now field instruments widely used in the standard 4-20 ma analog communication。
Yokogawa EJA series provides two kinds of field bus mode, the fieldbus FOUNDATION ™ low voltage mode and PROFIBUS PA equipment, in order to realize the yokogawa motor and other suppliers work together. Software, yokogawa EJA series adopts two AI function block differential pressure and static pressure calculation, so as to realize the spirit
2、product brief introduction
Yokogawa EJA110A differential pressure transducer used to measure liquid, gas, and the liquid level, density and pressure of steam, then transform it into a 4-20 madc current signal output. Yokogawa EJA110A differential pressure transmitter can communicate with BRAIN hand operator or CENTUM CS/mu XL or rosemount HART 475 operator each other, through them to set and monitor, etc。
EJA differential pressure/pressure transmitter is yokogawa electric corporation in the mid ninety s latest product, pioneered in real digital sensor -monocrystalline silicon resonant sensor, opened a new era of transmitter, the product has a higher precision, stability, reliability, since the market,well received by people from all walks of life. To welcome the coming of the era of field bus, we have launched the foundation test certification accord with standard of FF fieldbus transmitter.
3、main feature：
In addition to ensure high precision, also implements the static pressure, temperature and other high-performance minimal environmental impact。
·The high reliability of long-term continuous application.
·Small, lightweight, make it is not limited by the installation place, free installation。
·USES the microcomputer technology, complete with self-diagnosis and communication function。
·Development attaches great importance to the stability of the zero point, improve the maintenance efficiency。
·Five years in a row without calibration zero。
4、Model:
EJA110A Differential pressure transmitter
EJA120A Differential pressure transmitter
EJA130A High Static pressure transmitter
EJA210A、220A Flange installation type differential pressure transmitter.
EJA310A Absolute pressure transmitter
EJA430A Pressure transmitter
EJA440A High pressure transmitter 30A Absolute pressure/pressure transmitter.
EJA118W、N、Y Diaphragm seal type differential pressure transmitter
EJA115 Tiny flow transmitter
EJA213、233 Health type liquid level transmitter.
EJA113W Health type diaphragm sealed differential pressure transmitter
EJA433W Health type diaphragm sealed pressure transmitter
EJA series HART communication transmitter.
EJA series of FF fieldbus communication transmitter.
5、Product selection list
Yokogawa EJA110A-Differential pressure Transmitter
| Output Signal | -D | 4 to 20 mA DC with digital communication (BRAIN protocol) |
| -E | 4 to 20 mA DC with digital communication (HART protocol, refer to GS 01C22T01-00E) | |
| -F | Digital communication (FOUNDATION Fieldbus protocol, refer to GS 01C22T02-00E) | |
| -G | Digital communication (PROFIBUS PA protocol, refer to GS 01C22T03-00E) | |
|
Measurement
span(capsule)
|
L | 0.5 to 10 kPa {50 to 1000 mmH 2O} {2 to 40 inH2O} {5 to 100 mbar} |
| M | 1 to 100 kPa {100 to 10000 mmH 2O} {4 to 400 inH2O} {10 to 1000 mbar} | |
| H | 5 to 500 kPa { 0.05 to 5 kgf/cm2} {20 to 2000 inH 2O} {50 to 5000 mbar} | |
| V | 0.14 to 14 MPa { 1.4 to 140 kgf/cm2}*1 {20 to 2000 psi} {1.4 to 140 bar} | |
|
Wetted parts material*11 |
[Body]*2 [Capsule] [Vent plug] | |
| S# | SCS14A SUS316L*5 SUS316*13 | |
| H# | SCS14A Hastelloy C-276*6*12 SUS316*13 | |
| M# | SCS14A Monel*6 SUS316*13 | |
| T | SCS14A Tantalum*6 SUS316*13 | |
| A | Hastelloy C-276 equivalent*3 Hastelloy C-276*6*12 Hastelloy C-276*12 | |
| D | Hastelloy C-276 equivalent*3 Tantalum*6 Hastelloy C-276*12 | |
| B | Monel equivalent*4 Monel*6 Monel | |
| Process Connections | 0 | without process connector (Rc1/4 female on the cover flanges) |
| 1 | with Rc1/4 female process connector | |
| 2 | with Rc1/2 female process connector | |
| 3 | with 1/4 NPT female process connector | |
| 4 | with 1/2 NPT female process connector | |
| ★5 | without process connector (1/4 NPT female on the cover flanges) | |
| [Maximum working pressure] | ||
| Bolts and nuts material | ★A | SCM435 16 MPa {160 kgf/cm2}*9 |
| B | SUS630 16 MPa {160 kgf/cm2}*9 | |
| C | SUH660 16 MPa {160 kgf/cm2}*9 | |
| Installation | -2 | Vertical impulse piping type, right side high pressure, process connector upside*7 |
| -3 | Vertical impulse piping type, right side high pressure, process connector downside*7 | |
| -6 | Vertical impulse piping type, left side high pressure, process connector upside*7 | |
| -7 | Vertical impulse piping type, left side high pressure, process connector downside*7 | |
| -8 | Horizontal impulse piping type, right side high pressure*8 | |
| ★-9 | Horizontal impulse piping type, left side high pressure*8 | |
| Electrical connection | 0 | G1/2 female, one electrical connection |
| ★2 | 1/2 NPT female, two electrical connections without blind plug | |
| 3 | Pg 13.5 female, two electrical connections without blind plug | |
| 4 | M20 female, two electrical connections without blind plug | |
| 5 | G1/2 female, two electrical connections and a blind plug | |
| 7 | 1/2 NPT female, two electrical connections and a blind plug | |
| 8 | Pg 13.5 female, two electrical connections and a blind plug | |
| 9 | M20 female, two electrical connections and a blind plug | |
| A | G1/2 female, two electrical connections and a SUS316 blind plug | |
| C | 1/2 NPT female, two electrical connections and a SUS316 blind plug | |
| D | M20 female, two electrical connections and a SUS316 blind plug | |
| Integral indicator | D | Digital indicator |
| E | Digital indicator with the range setting switch*10 | |
| ★N | (None) | |
| Mounting bracket | ★A | SECC Carbon steel 2-inch pipe mounting (flat type) |
| B | SUS304 2-inch pipe mounting (flat type) | |
| J | SUS316 2-inch pipe mounting (flat type) | |
| C | SECC Carbon steel 2-inch pipe mounting (L type) | |
| D | SUS304 2-inch pipe mounting (L type) | |
| K | SUS316 2-inch pipe mounting (L type) | |
| N | (None) | |
The ‘★’ marks indicate the most typical selection for each specification.Example: EJA110A-DMS5A-92NA/The ‘#’marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use of SUS316 material,there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.
1、For Wetted parts material code H, M, T, A, D, and B, the range limits are 0 to 14 MPa{0 to 140 kgf/cm2}.
2、Indicates material of cover flanges and process connectors.
3、Indicated material is equivalent to ASTM CW-12MW.
4、Indicated material is equivalent to ASTM M35-2.
5、Diaphragm material is Hastelloy C-276 or ASTM N10276. Other capsule wetted parts materials are SUSF316L,SUS316L or ASTM grade 316L.
6、Indicates diaphragm and other capsule wetted parts material.
7、If necessary, specify Mounting bracket code C or D.
8、If necessary, specify Mounting bracket code A or B.
9、For Capsule code L when combined with Wetted parts material code H, M, T, A, D, and B, the maximum working pressure is 3.5 MPa {35 kgf/cm2}.
10、Not applicable for Output signal code F and G.
11、Users must consider the characteristics of selected wetted parts material and the influence of process fluids.The use of inappropriate materials can result in the leakage of corrosive process fluids and cause injury to personnel and/or damage to plant facilities.It is also possible that the diaphragm itself can be damaged and that material from the broken diaphragm and the fill fluid can contaminate the user's process fluids.Be very careful with highly corrosive process fluids such as hydrochloric acid, sulfuric acid, hydrogen sulfide,sodium hypochlorite, and high-temperature steam (150 °C [302 °F] or above). Contact Yokogawa for detailed information of the wetted parts material.
12、Hastelloy C-276 or ASTM N10276.
EJA110A Differential pressure transmitter/EJA118W/EJA118Y/EJA118N Double flanges differential pressure transmitter/EJA120A micro differential pressure transmitter/ EJA130A High performance differential pressure transmitter/EJA210A/EJA220A Flange Mounted Differential Pressure Transmitter/ EJA310A Absolute Pressure Transmitter/ EJA430A Gauge Pressure Transmitter/ EJA438W and EJA438N Diaphragm Sealed Gauge Pressure Transmitters/ Model EJA440A High Pressure Transmitter/EJA510A and EJA530A Absolute and Gauge Pressure Transmitters/Model EJX110A Differential pressure transmitter/EJX118W Diaphragm Sealed Differential Pressure Transmitters/EJX210A Flange Mounted Differential Pressure Transmitter/EJX430A Gauge pressure transmitter/ EJX438A Diaphragm seal pressure transmitter/EJX910A Multivariable Pressure Transmitter
