EJA438E-JASCG-912DB-WA22C1SW-00-AA25 | Yokogawa EJA438E Diaphragm Sealed Differential Pressure Transmitter

Part Number: EJA438E-JASCG-912DB-WA22C1SW-00-AA25Model and Suffix CodesModel: EJA438E - Diaphragm sealed gauge pressure transmitterOutput signal: -J - 4 to mA DC with digital communication (HART5/HART 7 protocol)¹Measurement span (capsule): A - 0.06 to 3.5 MPa (8.6 to 500 psi)S: Always SC: Always CCoverflange bolts and nuts material: G - 316L SSTInstallation: -9 - Horizontal piping type and left side high pressureAmplifier housing: 1 - Cast aluminum alloyElectrical connection: 2 - 1/2 NPT female, two electrical connections without blind plugsIntegral indicator: D - Digital indicator²Mounting bracket: B - 304 SST 2-inch pipe mounting, flat type (for horizontal piping)Process connection style: -W - Flush typeFlange rating: A2 - ANSI class 300Process connection size (Process flange size): 2 - 2-inch (50 mm)Flange material: C - 316 SST³Gasket contact surface4: 1 - Serration (for ANSI flange with wetted parts material SW only)Wetted parts material5: SW - [Diaphragm] 316L SST; [Others] 316L SSTFlushing connection ring6: 0 - NoneExtension: 0 - NoneFill fluid: -A - For general use (silicone oil)7 Process temperature: -10 to 250°CAmbient temperature: -10 to 60°C Capillary connection: A - Side of diaphragm seal unit2: Always 2Capillary length8: 5 - 5 mNOTE:The marks indicate the most typical selection for each specification.HART 5 or HART 7 is selectable. Specify upon ordering.Not applicable for output signal code G.Forged version of the material may be used.See table 3 Gasket contact surface .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 high temperature steam (150?C [302?F] or above). Contact Yokogawa for detailed information of the wetted parts material.When specified flushing connection ring code A or B, exclusive gasket is provided for transmitter side.In case of wetted parts material code TW (Tantalum), the process temperature limit is 10 to 200?C.In case of wetted parts material code HW (Hastelloy C), TW (Tantalum), and UW (Titanuym) for 2-inch pressure flange, specify capillary length from 1 to 5 m.