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EJA118W Diaphragm Sealed Differential Pressure Transmitters
Features :
Diaphragm seals are used to prevent process medium form entering directly into the pressure-sensing assembly of the
differential pressure transmitter, they are connected to the transmitter using capillaries filled with fill fluid.
Standard Specifications :
Measurement Ranges:
Capsule Measurement Span Measurement Range
M 2.5 to 100 kPa -100 to 100 kPa
{-10000 to 10000 mmH2O}
{250 to 10000 mmH2O}
H 25 to 500 kPa -500 to 500 kPa
{-5 to 5 kgf/cm2}
{0.25 to 5 kgf/cm2}
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
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
10.5 to 28 V DC for TIIS intrinsically safe type
Conditions of Communication Line “”:
Power supply voltage;
16.4 to 42 V DC
Load resistance; See Figure 1.
Note: In case of an intrinsically safe transmitter, external
load resistance includes safety barrier resistance.
Technical parameters :
Communication distance;
2 km, when CEV polyethylene-insulated
PVC-sheathed control cables are used.
Note: Communication distance varies depends on kind of
cable.
Load capacitance; 0.22 µF of less.
Load inductance; 3.3 mH or less.
Spacing from power line; 15 cm or more.
Input impedance of receiver connected receiving resistance;
10 k or more at 2.4 kHz
(See Optional Specifications for Intrinsically safe type)
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