Description

Sku: E12964-2

Yokogawa No. EJA440A-ECS4B-37DD/D4

Yokogawa EJA440A Differential Pressure Transmitter

The Yokogawa high performance gauge pressure transmitter model EJA440A can be used to measure liquid, gas, or steam pressure. It outputs a 4 to 20 mA DC signal corresponding to the measured gauge pressure. Model EJA440A also features remote setup and monitoring through communications with the BRAIN™ terminal and CENTUM CS™ or µXL™ or HART® 275 host.

External Zero Adjustment
External zero is continuously adjustable with 0.01%
incremental resolution of span. Span may be
adjusted locally using the digital indicator with range switch.
Mounting Position Effect
Rotation in diaphragm plane has no effect. Tilting up
to 90° will cause zero shift up to 0.4 kPa {1.6 inH2O}
which can be corrected by the zero adjustment.
Output
Two wire 4 to 20 mA DC output with digital
communications. BRAIN or HART FSK protocol are
superimposed on the 4 to 20 mA signal.
Failure Alarm
Output status at CPU failure and hardware error;
Up-scale: 110%, 21.6 mA DC or more(standard)
Down-scale:
−5%, 3.2 mA DC or less
−2.5%, 3.6 mA DC or less (Optional code /F1)
Note: Applicable for Output signal code D and E