Diaphragm seals are used to prevent process medium form entering directly into the pressure-sensing assembly of the differential pressure transmitter, they are connected to the transmitter using capillaries filled with fill fluid. EJA118E Diaphragm Sealed Differential Pressure Transmitters can be used to measure liquid, gas, or steam flow, as well as liquid level, density, and pressure. EJA118E outputs a 4 to 20 mA DC signal corresponding to the measured differential pressure. Its highly accurate and stable sensor can also measure the static pressure which can be shown on the integral indicator or remotely monitored via BRAIN or HART communications. Other key features include quick response, remote set-up using communications, and self-diagnostics. FOUNDATION Fieldbus, PROFIBUS PA and 1 to 5 V DC with HART (Low Power) protocol types are also available. EJA-E series models in their standard configuration, with the exception of the Fieldbus, PROFIBUS and Low Power types, are certified as complying with SIL 2 for safety requirement.
Measurement Span/Range | kPa | inH2O (/D1) | mbar (/D3) | mmH2O (/D4) | |
M | Span | 2.5 to 100 | 10 to 400 | 25 to 1000 | 250 to 10000 |
Range | -100 to 100 | -400 to 400 | -1000 to 1000 | -10000 to 10000 | |
H | Span | 25 to 500 | 100 to 2000 | 250 to 5000 | 0.25 to 5 kgf/cm2 |
Range | -500 to 500 | -2000 to 2000 | -5000 to 5000 | -5 to 5 kgf/cm2 | |
Flow Measurement: It is suitable for measuring the flow of high - and low - temperature, high - vacuum, high - viscosity and easy - to - crystallize media. By measuring the differential pressure of the fluid in the pipeline, and combining with relevant parameters of the pipeline, the flow rate of the fluid can be calculated according to the principle of fluid mechanics, so as to realize the monitoring and control of the flow, which is widely used in chemical, petrochemical and other industries.
Level Measurement: It can measure the differential pressure at the bottom of the storage tank, and calculate the height of the liquid level according to the hydrostatic principle. It is applicable to the level measurement of various liquid storage tanks, especially for some special media such as high - viscosity and easy - to - crystallize media, which can effectively avoid the blockage of the pressure - measuring pipeline and ensure the accuracy of level measurement.
Item | valve |
Type | Diaphragm-sealed differential pressure transmitter |
Measuring Principle | DPharp digital sensor technology (measures differential pressure, static pressure, and temperature simultaneously for dynamic compensation) |
Measurable Media | Liquids, gases, vapors, high-temperature/high-vacuum media, high-viscosity media, crystallizable media |
Accuracy | ±0.2% of differential pressure span |
Stability | ±0.2% URL/10 years |
Pressure Range | - Differential pressure: 0 to 2.5 kPa (0 to 0.36 psi) up to 0 to 40 MPa (0 to 5800 psi) |
Response Time | 90 ms (standard), adjustable up to 1600 ms |
Output Signal | - 4–20 mA DC with HART 5/7, BRAIN protocol |
Power Supply | - 10.5–42 V DC (general/explosion-proof types) |
Communication Protocols | HART 5/7, HART low-power (1–5V DC), FF fieldbus, PROFIBUS PA, BRAIN |
Temperature Range | - Operating: -40°C to +120°C |
Temperature Effect | ±(0.15% of span + 0.15% of URL) per 28°C temperature change |
Protection Level | IP66/IP67, NEMA 4X |
Explosion Protection | Certified for ATEX, FM, CSA, IECEx, etc. |
Process Connections | - Flange types: ANSI, JIS, DIN, GB |
Diaphragm Materials | - 316L stainless steel, Hastelloy C-276, Monel, Tantalum, etc. |
Self-Diagnosis Functions | 40 self-diagnosis functions (including patented real-time reverse check and DPharp active sensor failure detection) |
Display | Optional built-in display: 5-digit numeric + 6-digit unit display, shows measured values, alarm codes, bar charts, etc. |
Mounting | Flange-mounted (direct to process equipment) |
Packaging: Original cardboard box packaging
Esito (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
We can offer rosemount, Endress+Hauser, yokogawa, Siemens, ABB,Fisher,Koso, Samson, Abzil, NELES,UE etc, Brands.
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