Yokogawa EJA110E - Manual (Page 17)

<2. Handling Cautions>
2-9
IM 01C25B01-01E
b. ATEX Flameproof Type
Caution for ATEX flameproof type.
Note 1. Model EJX/EJA-E 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
• Supply voltage: 42 V dc max.
• Output signal: 4 to 20 mA
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.
c. ATEX Intrinsically Safe Type/ATEX
Flameproof Type
Model EJX/EJA-E Series pressure transmitters
with optional code /KU22 or /V1U1 can
be selected the type of protection ATEX
Flameproof, Intrinsically Safe. Ex ia, or Ex ic for
use in hazardous area.
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 user’s manual.
Note 2. For combined approval types Once a
device of multiple approval type is installed,
it should not be re-installed using any
other approval types. Apply a permanent
mark in the check box of the selected
approval type on the certification label on
the transmitter to distinguish it from unused
approval types.