Yokogawa EJA220A - Manual (Page 59)

IM 01C21C01-01E 10-2
10. GENERAL SPECIFICATIONS
HART
Communication Distance;
Up to 1.5 km (1 mile) when using multiple twisted
pair cables. Communication distance varies
depending on type of cable used.
Use the following formula to determine cable
length for specific applications:
L= -
65 x 10 6
(R x C)
(C
f
+ 10,000)
C
Where:
L = length in meters or feet
R = resistance in
Ω (including barrier resistance)
C = cable capacitance in pF/m or pF/ft
C
f
= maximum shunt capacitance of receiving
devices in pF/m or pF/ft
᭹ Physical Specifications
Wetted Parts Materials:
High side:
See ‘Model and Suffix Codes’
Low side:
Diaphragm;
Hastelloy C-276
Cover flange;
SCS14A
Process connector;
SCS14A
Capsule gasket;
Teflon-coated SUS316L
Drain/Vent plug;
SUS316
Process connector gasket;
PTFE Teflon
Non-wetted Parts Materials:
Bolting;
SCM435, SUS630, or SUH660
Housing;
Low copper cast-aluminum alloy with polyurethane
paint (Munsell 0.6GY3.1/2.0)
Degrees of Protection
IP67, NEMA4X, JIS C0920 immersion proof
Cover O-rings;
Buna-N
Data plate and tag;
SUS304 or SUS316 (optional)
Fill Fluid;
Silicone or Fluorinated oil (optional)
Weight:
EJA210A with 150# flange 11 kg(25 lb)
EJA220A with 150# flange 16 kg(35 lb)
Connections:
Refer to the ‘Model and Suffix Codes’ to specify
the process and electrical connection type.
The high pressure side is a flange connected, and
low side is threaded.
Atmospheric
pressure
-40
(-40) 0
(32) 40
(104) 80
(176) 120
(248)
1{0.14}
2.7{0.38}
10{1.4}
{psi abs}
100{14.5}
Process temperature °C (°F)
Working
pressure
kPa abs
Applicable range
F1001.EPS
Figure 1. Working Pressure and Process Temperature
< Settings When Shipped > “ ᭛”
Tag Number
Output Mode
Display Mode
Operation Mode
Damping Time
Constant
As specified in order *1
‘Linear’
‘2 sec.’
‘Normal’ unless otherwise specified in order
‘Linear’
Calibration Range
Units
As specified in order
As specified in order
Selected from mmH
2
O, mmAq, mmWG,
mmHg, Pa, hPa, kPa, MPa, mbar, bar,
gf/cm
2 , kgf/cm 2 , inH
2
O, inHg, ftH
2
O, or psi.
(Only one unit can be specified)
Calibration Range
Higher Range Value
Calibration Range
Lower Range Value
M1003.EPS
*1: Up to 16 alphanumeric characters (including - and
· ) will be entered in the amplifier memory.