Description / توضیحات
Ordering Information
Model EJA210E Flange mounted differential pressure transmitter
Output signal -F Digital communication (FOUNDATION Fieldbus protocol, refer to GS 01C31T02-01EN)
Measurement span (capsule) M 1 to 100kPa (4 to 400 inH2O)
Low pressure side Process connections *5 without process connector (1/4 NPT female on the cover flange)
Cover flange bolts and nuts material J B7 carbon steel
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(3)
N Always N
Process connection style -W Flush type
Flange rating A1 ANSI class 150
Flange size 3 3-inch (80mm)
Flange material A JIS S25C
Gasket contact surface(4) 2 Flat (no serration)
Wetted parts material (high pressure side)(5) SW [Diaphragm] 316L SST#
[Others] 316L SST#
Flushing connection ring(6) *0 [Ring] None
[Vent/Drain plugs] -
[Material] -
Extension 0 None
Fill fluid *-B For general use (Silicone oil)(7)
[Process temperature] –40 to 120°C
[Ambient temperature] –40 to 85°C
Wired tag plate /N4 316 SST tag plate wired onto transmitter
Calibration units(8) /D3 bar calibration (bar unit)
The “*” marks indicate the most typical selection for each specification.
The ‘#’marks indicate the construction materials conform to NACE material recommendations per MR0175 (2003). Please refer to latest standards for details.
Cast version of 316 SST. Equivalent to SCS14A.
Hastelloy C-276 or ASTM N10276
Not applicable for output signal code G.
See Table 3 ‘Gasket contact surface’ on Page 5.
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.
Indicates the process temperature limit of high pressure side.
The process temperature limit for low pressure side is –40 to 120°C except fill fluid code -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.
