YOKOGAWA Dpharp EJX110A, Руководство по установке

Страница: 21 / 57

<2. Handling Cautions>
20
IM 01C25A01-01E
• In the rating 1(*1), the output current of the barrier
must be limited by a resistor ‘Ra’ such that Io = Uo/
Ra.
• In the rating 2(*2), the output of the barrier must be
the characteristics of the trapezoid or the rectangle
and this transmitter can be connected to Fieldbus
equipment which are in according to the FISCO
model.
• The terminators may be built in by a barrier.
• More than one transmitter may be connected to
the power supply line.
• The terminator and the safety barrier shall be
certified.
Electrical data:
Supply circuit
Maximum Input Voltage Ui: 24 V
*1:
Rating 1
Maximum Input Current Ii: 250 mA
Maximum Input Power Pi: 1.2 W
Maximum Internal Capacitance Ci: 3.52 nF
Maximum Internal Inductance Li: 0 μH
or
Maximum Input Voltage Ui: 17.5 V
*2:
Rating 2
Maximum Input Current Ii: 380 mA
Maximum Input Power Pi: 5.32 W
Maximum Internal Capacitance Ci: 3.52 nF
Maximum Internal Inductance Li: 0 μH
or
Maximum Input Voltage Ui: 17.5 V
Maximum Input Current Ii: 460 mA
Maximum Input Power Pi: 5.32 W
Maximum Internal Capacitance Ci: 3.52 nF
Maximum Internal Inductance Li: 0 μH
Sensor circuit
Maximum Output Voltage Uo: 7.63 V
Maximum Output Current Io: 3.85 mA
Maximum Output Power Po: 0.008 W
Maximum Internal Capacitance Co: 4.8 μF
Maximum Internal Inductance Lo: 100 mH
• RTD sensor is prepared by the user.
The sensor signal line must suited a test voltage of
500Vac.
d. ATEX Flameproof Type
Caution for ATEX flameproof type.
Note 1. EJX/EJA-E Series pressure transmitters with
optional code /KF22 or /V1F are applicable for
use in hazardous locations.
• No. KEMA 07ATEX0109 X
• Applicable Standard:
EN 60079-0:2012+A11:2013
EN 60079-1:2007, EN60079-31:2014
• Type of Protection and Marking Code:
Ex d 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.
Note 2. Electrical Data
• 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)
9 to 30 V dc, 250 mW (RS485 Modbus
Communication Type)
• Output signal: 4 to 20 mA
15 mA (F
OUNDATION
Fieldbus and PROFIBUS PA
type)
1 to 5 V (Low Power type)
RS485 Modbus (RS485 Modbus Communication
Type)
Note 3. Installation
• All wiring shall comply with local installation
requirement.
• Cable glands, adapters and/or blanking elements
with a suitable IP rating shall be of Ex d IIC/Ex tb
IIIC certified by ATEX and shall be installed so as
to maintain the specific degree of protection (IP
Code) of the equipment.
• Wiring connection for output signal code Q (Low
Power type) shall follow the diagram below.
F0220.ai
Three-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY –
A
+
–
+
–
Four-Wire Connection
Pressure Transmitters
Power Supply
Voltmeter
SUPPLY –
A
+
–
+
–