Newsletter
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1、Introduction
Yokogawa EJA130A high performance differential pressure transmitter used to measure liquid, gas and the liquid level, density and pressure of steam, then transform it into a 4-20 ma current signal output. EJA130A can communication with BRAIN hand operator or CENTUM CS/mu XL or Rosemount HART 475 operator each other, through them to set and monitor, etc.
| Application | Stype | Mode | capsule | Measurement KPa | The maximum pressure MPa |
| Differential pressure and liquid level | Normal installation | EJA130A | M | 1-100 | 3242 |
| H | 5-500 | 3242 |
| EJA130A High performance differential pressure transmitter | |||
| M Capsule | H Capsule | ||
| Measurement span |
-100~100kPa (-400~400inH2O) |
-500~500kPa (-2000~2000inH2O) |
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| Measurement range |
1~100kPa (4~400inH2O) |
5~500kPa (20~2000inH2O) |
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| Accuracy | ±0.065% | ±0.065% | |
| Protection Level | IP67，NEMA 4X，JIS C0920 The immersion type | ||
| Explosion-proof | FM，CENELEC ATEX，CSA，IECEx | ||
| Output signal | 4~20mA DC or FOUNDATION™ fieldbus PROFIBUS PA two wire system of digital communication | ||
| Power |
BRAI and HART:10.5~42V DC (intrinsic safety type: 10.5~30V DC) Fieldbus:9~32V DC (intrinsic safety typeEntitym model9~24V DC，intrinsic safety typeFISCO model9~17.5V DC) |
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| Environment temperature |
-40~85℃(-40~185℉) (normally) -30~80℃(-22~176℉) (Integral indicator) |
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| Process temperature | -40~120℃(-40~248℉) (normally) | ||
| The maximum pressure | 32MPa (4500psi) | ||
| Installation | 2-inch piped installation | ||
| Wetted materials | Capsule | SUS316L (diaphragm: hartz alloy C - 276), | |
| Capeflange | SUS316 | ||
| Shell | Aluminum alloy or SUS316 stainless steel (optional) | ||
| 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) | |
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Measurement
span(capsule)
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M | 1 to 100 kPa { 100 to 10000 mmH2O} { 4 to 400 inH2O} { 10 to 1000 mbar} |
| H | 5 to 500 kPa { 0.05 to 5 kgf/cm2} { 20 to 2000 inH2O} { 50 to 5000 mbar} | |
| Wetted parts meterials | S# |
[Body] [Capsule] [Vent plug] SUSF316 *1 SUS316L *2 SUS316 *8 |
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Process connection
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0 | without process connector (Rc 1/4 female on the cover flanges) |
| 1 | with Rc 1/4 female process connector | |
| 2 | with Rc 1/2 female process connector | |
| 3 | with 1/4 NPT female process connector *5 | |
| 4 | with 1/2 NPT female process connector *5 | |
| ☆5 | without process connector (1/4 NPT female on the cover flanges) | |
| Bolts and nuts material | ☆A | JIS SCM435 32MPa |
| B | JIS SUS630 32MPa | |
| C | JIS SUH660 32MPa | |
| Installation | -2 | Vertical impulse piping type, right side high pressure, process connector upside*3 |
| -3 | Vertical impulse piping type, right side high pressure, process connector downside*3 | |
| -6 | Vertical impulse piping type, left side high pressure, process connector upside*3 | |
| -7 | Vertical impulse piping type, left side high pressure, process connector downside*3 | |
| -8 | Horizontal impulse piping type, right side high pressure*4 | |
| ☆-9 | Horizontal impulse piping type, left side high pressure*4 | |
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Electrical connection
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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*6 | |
| ☆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: EJA130A-DMS5A-92NA/
The ‘#’marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use ofSUS316 material, there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.
1、Indicates material of cover flange. Material of process connector is SCS14A(SUS316 equivalent).
2、Diaphragm material is Hastelloy C-276 or ASTM N10276. Other capsule wetted parts materials are SUSF316L,SUS316L or ASTM grade 316L.
3、If necessary, specify Mounting bracket code C or D.
4、If necessary, specify Mounting bracket code A or B.
5、Lower limit of ambient and process temperature is 15C.
6、Not applicable for Output signal code F and G.
7、Users must consider the characteristics of selected wetted parts material and the influence of process fluids. These 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.
8、SUS316 or ASTM grade 316.
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