Yokogawa EJA438N -DA Diaphragm Sealed Gauge Pressure Transmitters
Models EJA438N Diaphragm Sealed
Gauge Pressure Transmitters can be used to measure
liquid, gas or steam pressure.
Output Signal “◊”:
4 to 20 mA DC, 2-wire system with digital
communication
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
Power Supply Effect “◊”:
±0.005 %/V (21.6 to 32 V DC, 350 Ω)
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
Weight:
8.3 kg (18.3 lb) Model EJA438W with 50 mm JIS 10K
flange, capillary length 5 m; with integral indicator
and mounting bracket.
13.4 kg (29.6 lb) Model EJA438N with 100 mm JIS
10K flange, X2=100, capillary length 5 m; with
integral indicator and mounting bracket.
Add 1.4 kg (3.1 lb) for JIS SCS14A stainless steel
amplifier housing.
Description
Ambient Temperature Limits:
-40 to 60 °C (-40 to 140 °F) (general-use type)
-30 to 60 °C (-22 to 140 °F) (with integral indicator)
Note : The ambient temperature limits must be within the
fill fluid operating temperature range, see Table 1.
(See ‘Optional Specifications’ for Explosion-protected
types)
Ambient Temperature Effect:
See Table 2.
Process Temperature Limits:
See Table 1.
(See ‘Optional Specifications’ for Explosion-protected
types)
Ambient Humidity Limits:
5 to 100 % R.H.(at 40 °C)