Description / توضیحات
Description
The EJA-E series of transmitters is Yokogawa's most recent evolution of the DPharp family. Released in 2012, it combines the ruggedness and success of the work-horse EJA-E series with the performance of the thoroughbred EJX-A series to deliver the type of product you have come to expect from Yokogawa.
The EJA118E is a Differential Pressure Transmitter with remote diaphragm seals.
EJA118E features include:
±0.2% Accuracy
200 ms Response Time
Exida and TUV SIL2 / SIL3 Certified
Local Parameter Setting (LPS)
10-segment Signal Characterizer
Active Capillary Fill Fluid Density Compensation
Model and Suffix Codes
Model EJA118E Diaphragm sealed differential pressure transmitter
Output signal -D 4 to 20 mA DC with digital communication (BRAIN protocol)
Measurement span (capsule) M 2.5 to 100 kPa (10 to 400 inH2O)
S Always S
C Always C
Cover flange bolts and nuts material C 660 SST
Installation -9 Horizontal piping type and left side high pressure
Amplifier housing 1 Cast aluminum alloy
Electrical connection 2 1/2 NPT female, two electrical connections without blind plugs
Integral indicator D Digital indicator(1)
Mounting bracket B 304 SST 2-inch pipe mounting, flat type (for horizontal piping)
Process connection style -E Extended type
Flange rating A2 ANSI class 300
Process connection size (Process flange size) 4 4-inch (100 mm)
Flange material C 316 SST(2)
Gasket contact surface(3) 1 Serration (for ANSI flange with wetted parts material SW only)
Wetted parts material(4) SE [Diaphragm] 316L SST
[Pipe] 316L SST
[Others] 316L SST
Flushing connection ring 0 None
Extension 2 Length (X2) = 50 mm
Fill fluid -A For general use (silicone oil)
[Process temperature] –10 to 250°C
[Ambient temperature] –10 to 60°C
Capillary connection B Back of diaphragm seal unit
2 Always 2
Capillary length(5) 6 6 m
Factory Mutual (FM) /FF1 FM Explosionproof Approval(6)
Explosionproof for Class I, Division 1, Groups B, C and D, Dust-ignitionproof for Class II/III, Division 1,
“FACTORY SEALED, CONDUIT SEAL NOT REQUIRED.”
Temperature class: T6, Amb. Temp.: –40 to 60°C (–40 to 140°F)
Calibration units(7)(8) /D4 M calibration (kgf/cm² unit)
The “*” marks indicate the most typical selection for each specification
Not applicable for output signal code G.
Forged version of the material may be used.
See table 3 ‘Gasket contact surface’ on page 6.
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 hightemperature steam (150°C [302°F] or above). Contact Yokogawa for detailed information of the wetted parts material.
The specified capillary length includes the extension length (X2) and the flange thickness (t).
Applicable for Electrical connection code 2, 4, 7, 9, C and D.
The unit of MWP (Max. working pressure) on the name plate of a housing is the same unit as specified by option code D1, D3, and D4.
Not applicable for Fill fluid code 1, 2, or 4.
