
Model EJA120A Differential Pressure Transmitter
2015-06-05 16:17:54
Description:
The high performance draft range differential pressure transmitter model EJA120A outputs a 4 to 20 mA DC signal corresponding to the measured differential pressure. Model EJA120A also features remote setup and monitoring through communications with the BRAIN™ terminal and CENTUM CS™ or XL™ or HART® 275 host.……
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Assortments
▶ Pressure Transmitter EJA
▶ Pressure Transmitters EJA-E
▶ Pressue Transmitter EJX
▶ Safety Instrumented System (SIS)
▶ Valve Positioners & Converters
▶ Field Mount Indicators
▶ Temperature Transmitters
▶ Magnetic Flowmeters
▶ Vortex Flowmeter
▶ Ultrasonic Flowmeters
▶ Coriolis Mass Flowmeters - ROTAMASS 3-Series
▶ Variable Area Flowmeters – Rotameters
▶ Device Smart Communicators
▶ PORTABLE AND HANDHELD INSTRUMENTS
▶ Distributed Control System (DCS)
▶ Process Analyzers
▶ Paperless Recorders
▶ Strip Chart Recorders
▶ Data Acquisition Equipment
▶ UT Series Temperature Controllers
▶ UP Series Program Controllers
▶ UM Series Digital Indicators with Alarms
▶ UT100 Series Temperature Controllers
▶ UD Series Manual Setters
▶ Limit Controllers
▶ YS Series Single-loop Controllers
Description
Quick Details
Place of Origin: Japan
Brand Name: Yokogawa
Model Number: EJA120A
Application: For wide application testing pr
Accuracy: ±0.065% of span
communication protocols: BRAIN, HART, FOUNDATION field....
Span: up to 14MPa
Certificates: CE & ISO
Output range: 3.6 mA to 21.6 mA
Ambient Temperature Limits: 25 to 80
Working Pressure Limits: 50 kPa (7.25 psi)
Up-scale: 110%, 21.6 mA DC or more
Down-scale: 5%, 3.2 mA DC or less
Packaging & Delivery
Packaging Details: Standard export package. By carton box or composited board box
Delivery Detail: 3~4Weeks upon order details
Key features
Excellent performance and stability
The EJA series uses a silicon resonant sensor formed from monocrystal silicon, a perfect material which has no hysteresis in pressure or temperature changes. The sensor minimizes overpressure, temperature change, and static pressure effects, and thus offers unmatched long-term stability.
Compact and light-weight design
Half the weight of conventional models thanks to miniaturization of the casing with the amplifier ASIC, pressure cell structure, and flange. The ASIC uses the minimum number of parts and improves the reliability of the amplifier.
Fieldbus communication capability
Fieldbus is a digital two-way communication system. It is a revolutionary technology for configuring instrumentation control systems and a promising successor to the standard 4 to 20 mA analog communication used in most field instruments today.
EJA series offers two types of fieldbus models, FOUNDATION™ fieldbus Low Voltage Mode and PROFIBUS PA devices, which ensure interoperability between Yokogawa and other manufactures. As for software, the EJA series incorporates two AI function blocks that compute differential and static pressures to allow flexible configuration of instrumentation
Specifications
| EJA120A Draft Range Differential Pressure Transmitter | ||
| E Capsule | ||
| Range | -1 to 1 kPa(-4 to 4 inH2O) | |
| Span | 0.1 to 1 kPa(0.4 to 4 inH2O) | |
| Accuracy | ±0.2% | |
| Degrees of protection | IP67, NEMA 4X, and JIS C0920 immersion proof | |
| Certificates | FM, CENELEC ATEX, CSA, IECEx | |
| Output | 4 to 20 mA DC or FOUNDATION™ fieldbus or PROFIBUS PA 2-wire system with digital communication | |
| Supply voltage | BRAIN and HART:10.5 to 42 V DC (10.5 to 30 V DC for Intrinsically safe type) | |
| Fieldbus:9 to 32 V DC (9 to 24 V DC for Entity model and 9 to 17.5 V DC for FISCO model) | ||
| Ambient temperature | -25 to 80 deg C (-13 to 176 deg F) | |
| Process temperature | -25 to 80 deg C (-13 to 176 deg F) | |
| Maximum working pressure | 50 kPa (7.25 psi) | |
| Mounting | 2-inch pipe mounting | |
| Wetted parts material | Capsule | SUS316L(Diaphragm material is Hastelloy C-276) |
| Cover flange | SUS316 | |
| Housing | Cast aluminum alloy or SUS316 equivalent stainless steel (optional) | |