YOKOGAWA EJX Series, Руководство пользователя

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<2. Handling Cautions>
10
IM 01C25A01-01E
• All wiring shall comply with local installation
requirements and local electrical code.
• 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. (The plug
attached is flameproof certified.)
Note 3. Operation
• WARNING:
AFTER DE-ENERGIZING, DELAY 5 MINUTES
BEFORE OPENING.
APRÉS POWER-OFF, ATTENDRE 5 MINUTES
AVANT D'OUVRIR.
• WARNING:
WHEN AMBIENT TEMPERATURE ≥ 65°C, USE
THE HEAT-RESISTING CABLES ≥ 90°C.
QUAND LA TEMPÉRATURE AMBIANTE ≥ 65°C,
UTILISEZ DES CÂBLES RÉSISTANTES Á LA
CHALEUR ≥ 90°C.
• Take care not to generate mechanical sparking
when accessing to the instrument and peripheral
devices in a hazardous location.
Note 4. Maintenance and Repair
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation and Yokogawa
Corporation of America is prohibited and will void
Canadian Standards Explosionproof Certification.
c. CSA Intrinsically Safe Type/CSA
Explosionproof Type
Model EJX/EJA-E Series pressure transmitters with
optional code /CU1 or /V1U1 can be selected the
type of protection (CSA Intrinsically Safe or CSA
Explosionproof) for use in hazardous locations.
Note 1. For the installation of this transmitter, once a
particular type of protection is selected, any
other type of protection cannot be used. The
installation must be in accordance with the
description about the type of protection in this
instruction manual.
Note 2. In order to avoid confusion, unnecessary
marking is crossed out on the label other
than the selected type of protection when the
transmitter is installed.
2.4.3 ATEX Certification
(1) Technical Data
a. ATEX Intrinsically Safe Type (Except for
EJX9

0A)
Caution for ATEX Intrinsically safe type.
Note 1. Model EJX/EJA-E Series pressure transmitters
with optional code /KS21 for potentially
explosive atmospheres:
• No. DEKRA 11ATEX0228 X
• Applicable Standard:
EN 60079-0:2009, EN 60079-11:2007,
EN 60079-26:2007, EN 61241-11:2006
• Type of Protection and Marking code:
Ex ia IIC T4 Ga
Ex ia IIIC T85 ºC T100 ºC T120 ºC Db
• Group: II
• Category: 1G, 2D
• Ambient Temperature for EPL Ga:
–50 to 60°C
• Ambient Temperature for EPL Db:
–30* to 60°C
* –15°C when /HE is specified.
• Process Temperature (Tp.): 120°C max.
• Maximum Surface Temperature for EPL Db:
T85°C (Tp.: 80°C)
T100°C (Tp.: 100°C)
T120°C (Tp.: 120°C)
• Enclosure: IP66 / IP67
Note 2 Electrical Data
• In type of explosion protection intrinsic safety Ex ia
IIC or Ex ia IIIC, only for connection to a certified
intrinsically safe circuit with following maximum
values:
Ui = 30 V
Ii = 200 mA
Pi = 0.9 W
(Linear Source)
Maximum internal capacitance; Ci = 27.6 nF
Maximum internal inductance; Li = 0 µH
Note 3. Installation
• Refer to the control drawing. All wiring shall comply
with local installation requirements.
Transmitter
Supply
Safety Barrier *1
Nonhazardous Location
[Control Drawing]
Hazardous Location
+
–
+
–
F0210.ai
*1: In any safety barriers used the output current must be
limited by a resistor “R” such that Io=Uz/R.
Note 4. Maintenance and Repair
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void DEKRA Intrinsically safe Certification.
Note 5. Special Conditions for Safe Use