Yokogawa EJA220A - Manual (Page 58)

IM 01C21C01-01E 10-1
10. GENERAL SPECIFICATIONS
10. GENERAL SPECIFICATIONS
10.1 Standard Specifications
Refer to IM 01C22T02-01E for F OUNDATION
Fieldbus communication type and IM 01C22T03-
00E for PROFIBUS PA communication type
marked with “
᭛”.
᭹ Performance Specifications
See General Specifications sheet, GS 01C21C01-
00E.
᭹ Functional Specifications
Span & Range Limits:
M
H
Measurement
Span
and Range
Span
Range
Span
Range
inH
2
O
(/D1)
4 to 400
–400 to 400
20 to 2000
–2000
to 2000
mbar
(/D3)
10 to 1000
mmH
2
O
(/D4)
100 to 10000
–1000
to 1000
50 to 5000
–5000
to 5000
–10000
to 10000
0.05 to
5 kgf/cm 2
–5 to
5 kgf/cm 2
kPa
1 to 100
–100
to 100
5 to 500
–500
to 500
T1001.EPS
URL is define as the Upper Range Limit from the table
above.
Zero Adjustment Limits:
Zero can be fully elevated or suppressed, within
the Lower and Upper Range Limits of the capsule.
External Zero Adjustment “
᭛”:
External zero is continuously adjustable with
0.01% incremental resolution of span. Span may
be adjusted locally using the digital indicator with
range switch.
Output “ ᭛”:
Two wire 4 to 20 mA DC output with digital
communications, linear or square root program-
mable. BRAIN or HART FSK protocol are superim-
posed 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
Damping Time Constant (1st order):
The sum of the amplifier and capsule damping
time constant must be used for the overall time
constant. Amp damping time constant is adjustable
from 0.2 to 64 seconds.
Time Constant (approx. sec) 0.4 0.4 0.4 0.4
M H M H Capsule (Silicone Oil)
EJA210A EJA220A
Ambient Temperature Limits:
* Safety 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:
* Safety approval codes may affect limits.
–40 to 120°C (–40 to 248°F)
Working Pressure Limits (Silicone Oil)
2.7 kPa abs (0.38 psia) to flange rating
(see Figure 1.)
᭹ Installation
Supply & Load Requirements “ ᭛”:
* Safety approvals can affect electrical requirements.
See Section 6.6, ‘Power Supply Voltage and Load
Resistance.’
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
EMC Conformity Standards“ ᭛”: ,
EN61326-1 Class A, Table 2 (For use in industrial
lications)
EN61326-2-3
Communication Requirements “ ᭛”:
BRAIN
Communication Distance;
Up to 2 km (1.25 miles) when using CEV polyethyl-
ene-insulated PVC-sheathed cables.
Communication distance varies depending on type
of cable used.
Load Capacitance;
0.22 µF or less (see note)
Load Inductance;
3.3 mH or less (see note)
Input Impedance of communicating device;
10 kΩ or more at 2.4 kHz.
Note: For general-use and Flameproof type.
For Intrinsically safe type, please refer to
‘Optional Specifications.’