<2. Handling Cautions>
2-10
IM 01C25W05-01EN
Note 2. Electrical Parameters
• [EJX****-P, EJA****-P]
Supply/Output Circuit (Terminals: +, –)
Ui: 30 V
Ii: 200 mA
Pi: 0.9 W
Ci: 27.6 nF
Li: 0 mH
Communication Circuit (Connector)
Uo: 8.2 V
Io: 160 mA
Po: 0.3 W
Co: 7.6 μF
Lo: 1 mH
• [EJX****-S, EJA****-S]
Ui: 8.2 V
Ii: 200 mA
Pi: 0.4 W
Ci: 6 μF
Li: 0 mH
Note 3. Installation
• Refer to the control drawing. All wiring shall
comply with local installation requirements.
Communication Circuit
(Connector)
Associated
Apparatus
Non-Hazardous
Area
Hazardous Area
+
–
+
–
Model EJX/EJAxxxx -P
Pressure Transmitters
Model EJX/EJAxxxx -S
Pressure Transmitters
+
–
A
B
Communication: Supply/Output:
Uo = 8.2 V
Ui = 30 V
Io = 160 mA
Ii = 200 mA
Po = 0.3 W
Pi = 0.9 W
Co = 7.6 μF
Ci = 27.6 nF
Lo = 1 mH
Li = 0 mH
Ui = 8.2 V
Ii = 200 mA
Pi = 0.4 W
Ci = 6 μF
Li = 0 mH
Supply/Output:
F0205.ai
• WARNING – POTENTIAL ELECTROSTATIC
CHARGING HAZARD – WHEN THE
EQUIPMENT IS USED IN HAZARDOUS
LOCATIONS, AVOID ANY ACTIONS WHICH
GENERATE ELECTROSTATIC CHARGES,
SUCH AS RUBBING WITH A DRY CLOTH.
• Note: The Associated Apparatus must be a
linear power source.
Note 4. Maintenance and Repair
WARNING
Only personnel authorized by Yokogawa Electric
Corporation can repair the equipment.
Note 5. Specific Conditions of Use
WARNING
• Precautions shall be taken to minimize the
risk from electrostatic discharge of painted
parts.
• When the enclosure of the Pressure
Transmitters is made of aluminum alloy,
if it is mounted in a potentially explosive
atmosphere requiring apparatus of
equipment category 1 G, it must be installed
such that, even in the event of rare incidents,
an ignition source due to impact and/or
friction sparks is excluded.
• Model EJX****-P and EJA****-P series
pressure transmitters are not capable of
withstanding the dielectric strength of
500 V r.m.s. between the intrinsically safe
circuit and the enclosure.
b. ATEX Flameproof Type
Caution for ATEX flameproof type.
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /KF22 for potentially
explosive atmospheres:
• No. KEMA 07ATEX0109 X
• Applicable Standard:
EN 60079-0:2012+A11:2013,
EN 60079-1:2014, EN 60079-31:2014
• Type of Protection and Marking Code:
Ex db IIC T6...T4 Gb, Ex tb IIIC T85°C Db
• Group: II
• Category: 2G, 2D
• Enclosure: IP66 / IP67
• Temperature Class for gas-poof:
T6, T5, and T4
• Ambient Temperature for gas-proof:
–50 to 75°C (T6), –50 to 80°C (T5), and
–50 to 75°C (T4)
• Process Temperature (Tp.) for gas-proof:
–50 to 85°C (T6), –50 to 100°C (T5), and
–50 to 120°C (T4)
• Maximum Surface Temperature for dust-proof:
T85°C (Tamb.: –30* to 75°C, Tp.: –30* to 85°C)
* –15°C when /HE is specified.
