YOKOGAWA DPharp EJXC40A, Руководство пользователя

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<2. Handling Cautions>
2-13
IM 01C25W05-01EN
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:
F0207.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 EPL Ga, 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. IECEx Flameproof Type
Caution for IECEx flameproof type.
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /SF2 are applicable for
use in hazardous locations:
• No. IECEx CSA 07.0008
• Applicable Standard:
IEC60079-0:2011, IEC60079-1:2007-4
• Flameproof for Zone 1, Ex d IIC T6...T4 Gb
• Enclosure: IP66/IP67
• Maximum Process Temperature:
120°C (T4), 100°C (T5), 85°C (T6)
• Ambient Temperature:
–50 to 75°C (T4), –50 to 80°C (T5),
–50 to 75°C (T6)
• Supply Voltage:
42 V dc max.
32 V dc max. (F
OUNDATION
Fieldbus and
PROFIBUS PA type)
9 to 28 V dc, 27 mW (Low Power type)
7.14 Vdc max, 20 mW (Slave module type)
• Output Signal:
4 to 20 mA dc
15 mA (F
OUNDATION
Fieldbus and
PROFIBUS PA type)
1 to 5 V (Low Power type)
Note 2. Wiring
• In hazardous locations, the cable entry
devices shall be of a certified flameproof
type, suitable for the conditions of use and
correctly installed.
• Unused apertures shall be closed with
suitable flameproof certified blanking
elements.
F0204.ai
Pressure Transmitters
Master module
Power Supply
Master module and Slave module Connection
SUPPLY
SUPPLY
+
–
Master - Slave
Communication Cable
Pressure Transmitters
Slave module
+
–
+
–
A
B
Master - Slave
Communication
Connector