Yokogawa EJA110A - Manual (Page 66)

IM 01C21B01-01E 10-2
10. GENERAL SPECIFICATIONS
᭹ 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
µ
F or less (see note)
Load Inductance;
3.3 mH or less (see note)
Input Impedance of communicating device;
10 k
Ω
or more at 2.4 kHz.
Note: For general-use and Flameproof type.
For Intrinsically safe type, please refer to
‘Optional 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:
Diaphragm, Cover flange, Process connector and
Drain/Vent Plug;
See ‘Model and Suffix Codes’
Capsule Gasket;
Teflon-coated SUS316L
Process Connector Gasket;
PTFE Teflon (EJA110A and EJA120A)
Fluorinated Rubber (EJA110A and EJA120A with
Optional code /N2 and /N3 and EJA130A
with Process connection code 3 and 4)
Glass reinforced Teflon (EJA130A with Process
connection code 1 and 2)
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:
3.9 kg (8.6 lb) without mounting bracket or process
connector (EJA110A)
Connections:
Refer to the ‘Model and Suffix Codes’ to specify
the process and electrical connection type.
< Settings When Shipped > “
᭛
”
Tag Number
Output Mode
Display Mode
Operation Mode
Damping Time
Constant *2
As specified in order *1
‘Linear’ unless otherwise specified in order
‘2 sec.’
‘Normal’ unless otherwise specified in order
‘Linear’ unless otherwise specified in order
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
T1004.EPS
*1: Up to 16 alphanumeric characters (including - and
· ) will be entered in the amplifier memory.
*2: If using square root output, set damping time
constant to 2 sec. or more.
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