Specifications
1.Excellent performance and stability2.Compact and light-weight design
3.Fieldbus communication
Yokogawa EJA118W Diaphragm Sealed Differential Pressure Transmitter
1. The EJA Series is available with BRAIN, HART, FOUNDATION™ fieldbus or PROFIBUS PA communication protocols.
The high performance gauge pressure transmitter model EJA430A can be used to measure liquid, gas, or steam pressure. It outputs a 4 to 20 mA DC signal corresponding to the measured gauge pressure.
2.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.
3.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:
| Yokogawa EJA118W Diaphragm Sealed Differential Pressure Transmitter | ||||
M Capsule | H Capsule | ||||
Range | -100 to 100 kPa | -500 to 500 kPa | |||
Span | 2.5 to 100 kPa | 25 to 500 kPa | |||
Accuracy | ±0.2% | ±0.2% | |||
Degrees of protection | IP67, NEMA 4X, and JIS C0920 immersion proof | ||||
Certificates | FM, CENELEC ATEX, CSA, TIIS, 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) | ||||
Ambient temperature | -40 to 60 deg C (-40 to 140 deg F) (general use type) | ||||
Process temperature | -50 to 300 deg C (-58 to 572 deg F) | ||||
Maximum working pressure | Flange rating pressure | ||||
Mounting | Transmitter: 2-inch pipe mounting | ||||
Process flange size | Flush type: 3-inch(80mm), 2-inch(50mm)
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Diaphragm material | SUS316L, Hastelloy C-276, Tantalum, Titanium | ||||
Process flange material | S25C, SUS304, SUS316 | ||||
Housing | Cast aluminum alloy or SUS316 equivalent stainless steel (optional) | ||||
