Part Number: EJA438E-JASCG-912DB-WA22C1SW-00-AA25
Model and Suffix Codes
- Model: EJA438E - Diaphragm sealed gauge pressure transmitter
- Output signal: -J - 4 to mA DC with digital communication (HART5/HART 7 protocol)1
- Measurement span (capsule): A - 0.06 to 3.5 MPa (8.6 to 500 psi)
- S: Always S
- C: Always C
- Coverflange bolts and nuts material: G - 316L 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 indicator2
- Mounting bracket: B - 304 SST 2-inch pipe mounting, flat type (for horizontal piping)
- Process connection style: -W - Flush type
- Flange rating: A2 - ANSI class 300
- Process connection size (Process flange size): 2 - 2-inch (50 mm)
- Flange material: C - 316 SST3
- Gasket contact surface4: 1 - Serration (for ANSI flange with wetted parts material SW only)
- Wetted parts material5: SW - [Diaphragm] 316L SST; [Others] 316L SST
- Flushing connection ring6: 0 - None
- Extension: 0 - None
- Fill fluid: -A - For general use (silicone oil)7
Process temperature: -10 to 250??C
Ambient temperature: -10 to 60??C - Capillary connection: A - Side of diaphragm seal unit
- 2: Always 2
- Capillary length8: 5 - 5 m
NOTE:
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.
- Estimated Lead Time: 8 - 10
- Shipping Weight: 2 Kg
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