Yokogawa EJA120A -EE Pressure Differential Transmitter
The high performance draft range differential pressure
transmitter model EJA120A outputs a 4 to 20 mA DC
signal corresponding to the measured differential
pressure.
Ambient Temperature Effects
Total Effects per 28 ˚C (50 ˚F) Change
[0.15 % Span + 0.20 % URL]
Output “”
Two wire 4 to 20 mA DC output with digital communications,
linear or square root programmable. 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
Weight
3.9 kg (8.6 lb) without integral indicator, mounting
bracket, and process connector.
Description
Ambient Temperature Limits
(approval codes may affect limits)
-25 to 80 ˚C (-13 to 176 ˚F )
Process Temperature Limits
(approval codes may affect limits)
-25 to 80 ˚C (-13 to 176 ˚F)
Ambient Humidity Limits
5 to 100 % RH @ 40 ˚C (104 ˚F)
Working Pressure Limits
-50 to 50 kPa {-7.25 to 7.25 psi}
Supply Voltage “”
10.5 to 42 V DC for general use and flameproof type
10.5 to 32 V DC for lightning protector (Optional
code /A)
10.5 to 30 V DC for intrinsically safe, Type n,
nonincendive, or non-sparking type
Minimum voltage limited at 16.4 V DC for digital
communications, BRAIN and HART