Absolute Pressure Transmitter
Yokogawa EJA310A -DA Absolute Pressure Transmitter
The high performance gauge pressure transmitter
model EJA310A can be used to measure liquid, gas,
or steam pressure.
Stability
±0.1 % of URL per 12 months
Power Supply Effects “◊”
±0.005 % per Volt (from 21.6 to 32 V DC, 350 Ω)
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
Weight
3.9 kg (8.6 lb) without integral indicator, mounting
bracket, and process connector.
Safety Requirement Standards
EN61010-1
• Altitude of installation site: Max. 2,000 m above sea
level
• Installation category: I
• Pollution degree: 2
• Indoor/Outdoor use
Absolute Pressure Transmitter
Yokogawa EJA310A -DA Absolute Pressure Transmitter
Description
Ambient Temperature Limits
(approval codes may affect limits)
−40 to 85 °C (−40 to 185 °F)
−30 to 80 °C (−22 to 176 °F) with LCD Display
Process Temperature Limits
(approval codes may affect limits)
−40 to 120 °C (−40 to 248 °F) – M & A capsules
−40 to 100 °C (−40 to 212 °F) – L capsule
Ambient Humidity Limits
5 to 100 % RH @ 40 °C (104 °F)
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