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Yokogawa EJA438E -DB Diaphragm Sealed Gauge Pressure Transmitter

Yokogawa EJA438E Diaphragm Sealed Gauge Pressure Transmitter

Yokogawa EJA438E -DB Diaphragm Sealed Gauge Pressure Transmitter

The EJA438E Diaphragm Sealed Gauge Pressure
Transmitters can be used to measure liquid, gas,
or steam pressure.

  • Power Supply Effects(Output signal code D and J)
    ±0.005 % per Volt (from 21.6 to 32 V DC, 350Ω)
  • Response Time (All capsules) “◊”
    200 ms (approximate value at normal temperature)
    When software damping is set to zero and including
    dead time of 45 ms (nominal)
  • Weight
    Flush type: 9.8 kg (21.6 lbs)
    (3-inch ANSI Class150 flange, capillary length 5 m;
    without integral indicator and mounting bracket.)
    Extended type: 12.2 kg (26.9 lbs)
    (4-inch ANSI Class150 flange, extention length
    (X2)=100 mm, capillary length 5 m; without integral
    indicator and mounting bracket.)
    Add 1.5kg (3.3lb) for Amplifier housing code 2.

Yokogawa EJA438E Diaphragm Sealed Gauge Pressure Transmitter

Yokogawa EJA438E -DB Diaphragm Sealed Gauge Pressure Transmitter

□ NORMAL OPERATING CONDITION
(Optional features or approval codes may
affect limits.)
Ambient Temperature Limits
−40 to 60°C (−40 to 140°F)
−30 to 60°C (−22 to 140°F) with LCD display
(Note: The ambient temperature limits must be within the
fill fluid operating temperature range, see table 1.)
Process Temperature Limits
See table 1.
Ambient Humidity Limits
0 to 100% RH
Working Pressure Limits
See table 1.
For atmospheric pressure or below, see figure 1-1,
1-2, 1-3, 1-4, and 1-5.

Supply Voltage “◊”
For 4 to 20 mA HART / BRAIN
(Output signal code D and J)
10.5 to 42 V DC for general use and flameproof type.
10.5 to 32 V DC for lightning protector
(option code /A.)
10.5 to 30 V DC for intrinsically safe, type n, or nonincendive.
Minimum voltage limited at 16.6 V DC for digital
communications, BRAIN and HART
For 1 to 5 V HART (Output signal code Q)
Power supply :
9 to 28 V DC for general use and flame proof type.
Power Consumption :
0.96 mA to 3 mA, 27 mW