YOKOGAWA YTA610 - Page 17

<2. Notes on Handling>
2-9
IM 01C50G01-01EN
b) IECEx Flameproof Type and Dust Ignition
Proof Type
Caution for IECEx ameproof type and Dust Ignition
Proof Type
Note 1. Certication information
• YTA710 with /SF2, YTA610 and YTA710 with
/SU2 and /SU25 temperature transmitters are
applicable for use in hazardous locations.
• No. IECEx KEM 07.0044
• Applicable Standard: IEC 60079-0:2011,
IEC 60079-1:2014-06, IEC 60079-31:2013
• Type of Protection and Marking Code:
Ex db IIC T6/T5 Gb,
Ex tb IIIC T70°C / T90°C Db
• Ambient Temperature for Gas Atmospheres:
–40 to 75°C (T6), –40 to 80°C (T5)
• Ambient Temperature for Dust Atmospheres:
–30 to 65°C (T70°C), –30 to 80°C (T90°C)
• Enclosure: IP66/IP67
• Supply Voltage : 42 V dc max. (4 to 20 mA type)
: 32 V dc max. (Fieldbus type)
• Output Signal : 4 to 20 mA
: 24 mA dc max. (Fieldbus type)
Note 2. Installation
• Cable glands, adapters and/or blanking
elements with a suitable IP rating shall be of Ex
d IIC/Ex tb IIIC certied by IECEx and shall be
installed so as to maintain the specic degree of
protection (IP Code) of the equipment.
• All wiring shall comply with local installation
requirement.
Note 3. Operation
• Keep strictly the “WARNING” on the label on
the transmitter.
WARNING: AFTER DE-ENERGING, DELAY
10 MINUTES BEFORE OPENING.
WHEN THE AMBIENT
TEMP.≥70°C, USE THE
HEATRESISTING CABLES AND
CABLE GLANDS OF HIGHER
THAN 90°C.
POTENTIAL ELECTROSTATIC
CHARGING HAZARD
-SEE USER’S MANUAL
• Take care not to generate mechanical spark
when access to the instrument and peripheral
devices in hazardous location.
Note 4. Special Conditions for Safe Use
WARNING
• Electrostatic charge may cause an explosion
hazard. Avoid any actions that cause the
generation of electrostatic charge, such as
rubbing with a dry cloth on coating face of
the product.
• If the YTA is mounted in an area where the
use of EPL Db equipment is required, it shall
be installed in such a way that the risk from
electrostatic discharges and propagating
brush discharges caused by rapid ow of
dust is avoided.
• To satisfy IP66 or IP67, apply waterproof
glands to the electrical connection port.
• If the equipment is affected by external
sources of heating or cooling from plant
facilities, make sure that the parts in contact
with the equipment or in the near vicinity of
the equipment do not exceed the ambient
temperature range of the equipment.
Note 5. Maintenance and Repair
• The instrument modication or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void IECEx
Flameproof Certication.
Note 6. Surge absorber
• The surge absorber can be removed from, or
added to the equipment.
(2) Electrical Connection
The type of electrical connection is stamped near
the electrical connection port according to the
following marking.
F0204.ai
Location of the marking
MarkingScrew Size
ISO M20×1.5 female M
NANSI 1/2 NPT female