Ordering Information Model EJA120E Differential pressure transmitter Output signal -J 4 to 20 mA DC with digital communication (HART 5/HART 7 protocol)(1) Measurement span (capsule) E 0.1 to 1 kPa (0.4 to 4 inH2O) Wetted parts material(2) S# Cover flange and process connector: ASTM CF-8M(3)Capsule: Hastelloy C-276(4) (Diaphragm)F316L SST, 316L SST (Others)Capsule gasket: PTFE TeflonVent/Drain plug: 316 SST Process connections 4 with 1/2 NPT female process connector Bolts and nuts material G 316L SST Installation •-9 Horizontal piping and left side high pressure Amplifier housing 1 Cast aluminum alloy Electrical connection 7 1/2 NPT female, two electrical connections and a blind plug(5) Integral indicator E Digital indicator with the range setting switch (push button)(6) Mounting bracket B 304 SST 2-inch pipe mounting, flat type (for horizontal piping) Factory Mutual (FM) /FU1 Combined FF1 and FS1(7)(8) PaintingCoating change /X2 Anti-corrosion coating(9) Calibration units(10) /D4 M calibration (kgf/cm² unit) Wired tag plate /N4 316 SST tag plate wired onto transmitter (Tag No.: Maximum. 16 characters.) Material certificate(11) /M11 Cover flange, Process connector(12) Pressure test/ Leak test certificate(13) /T04 Test Pressure: 50 kPa (7.25 psi)Nitrogen Gas(14)Retention time: one minute The “•” marks indicate the most typical selection for each specification.HART 5 or HART 7 is selectable. Specify upon ordering.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.Cast version of 316 SST. Equivalent to SCS14A.Hastelloy C-276 or ASTM N10276.Material of a blind plug; aluminum alloy for code 5 and 9, and SUS304 for code 7.Not applicable for output signal code F.Applicable for Electrical connection code 2, 4, 7, 9, C and D.Not applicable for output signal code Q.Not applicable with color change option. Not applicable for amplifier housing code 2.The unit of MWP (Max. working pressure) on the name plate of a housing is the same unit as specified by option codes D1, D3, and D4.Material traceability certification, per EN 10204 3.1B.Applicable for process connections codes 1, 2, 3, and 4.The unit on the certificate is always Pa unit regardless of selection of option code D1, D3 or D4.Dry nitrogen gas is used for oil-prohibited use (option codes K1 and K5).
