Yokogawa EJX930A - Manual (Page 23)

<3. Handling Cautions>
3-6
IM 01C25R01-01E
3.9.3 ATEX Certification
ATEX Certification
(1) Technical Data
a. ATEX Flameproof Type
Caution for ATEX flameproof type.
Note 1. Model EJX Series pressure transmitters
with optional code /KF22 for potentially
explosive atmospheres:
• No. KEMA 07ATEX0109 X
• Applicable Standard: EN 60079-0:2009,
EN 60079-1:2007, EN 60079-31:2009
• 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)
• Maximum Process Temperature (Tp.) for
gas-proof:
85°C (T6), 100°C (T5), and 120°C (T4)
• Maximum Surface Temperature for dust-
proof:
T85°C (Tamb.: –30* to 75°C, Tp.: 85°C)
* –15°C when /HE is specified.
Note 2. Electrical Data
• Power Supply:
42 V dc max. (HART Communication Type)
9 to 30 V dc, 250 mW (Modbus
Communication Type)
• Output signal:
4 to 20 mA (HART Communication Type)
Modbus (Modbus Communication Type)
For F
OUNDATION
Fieldbus communication
type, refer to IM 01C25R03-01E.
Note 3. Installation
• All wiring shall comply with local installation
requirement.
• The cable entry devices shall be of a certified
flameproof type, suitable for the conditions of
use.
Note 4. Operation
• Keep the “WARNING” label attached to the
transmitter.
WARNING: AFTER DE-ENERGIZING,
DELAY 5 MINUTES BEFORE OPENING.
WHEN THE AMBIENT TEMP.≥65°C, USE
HEAT-RESISTING CABLE AND CABLE
GLAND ≥90°C.
• Take care not to generate mechanical
sparking when accessing to the instrument
and peripheral devices in a hazardous
location.
Note 5. Special Conditions for Safe Use
WARNING
• Electrostatic charge may cause an exlosion
hazard. Avoid any actions that cause the
gerenation of eletrostatic charge, such as
rubbing with a dry cloth on coating face of the
product.
• In the case where the enclosure of the
Pressure Transmitter is made of aluminium,
if it is mounted in an area where the use of
category 2D apparatus is required, it shall
be installed in such a way that the risk from
electrostatic discharges and propagating
brush discharges caused by rapid flow of
dust is avoided.
• The instrument modification or parts
replacement by other than an authorized
Representative of Yokogawa Electric
Corporation is prohibited and will void the
certification.
• To satisfy IP66 or IP67, apply waterproof
glands to the electrical connection port.
b. ATEX Intrinsically Safe Type
Caution for ATEX Intrinsically safe type.
Note 1. Model EJX Series Multivariable transmitter
with optional code /KS2 for potentially
explosive atmospheres:
• No. KEMA 06ATEX0037 X
• Applicable Standard: EN 50014:1997,
EN 50020:2002, EN 50284:1999,
EN 50281-1-1:1998
• Type of Protection and Marking code:
EEx ia IIC T4
• Group: II
• Category: 1G, 1D