<2. Notes on Handling>
2-7
IM 01W03D02-01EN
2.6.2 FM Approval (Canada)
(1) Technical Data
Caution for FM Approval (Canada) Intrinsically safe
type.
Note 1. Model FN310 Field Wireless Multi-Protocol
Module (RS485 Modbus Protocol) with
optional code /CS17 for potentially
explosive atmospheres:
• Applicable Standards:
CAN/CSA-C22.2 No.0
C22.2 No. 60079-0:19
CAN/CSA-C22.2 No. 60079-11:14
CAN/CSA-C22.2 No. 61010-1
CAN/CSA-C22.2 No. 94.1
CAN/CSA-C22.2 No. 94.2
CAN/CSA-C22.2 No. 60529
• Certificate number: FM21CA0032X
• Specific Ex marking:
Ex ia [ia IIC Ga] IIB T4 Ga
IS CL I/II/III GP CDEFG T4
For connection to CL I/II/III GP ABCDEFG
• Enclosure: IP66, Type 4X
• Ambient temperature: −40 °C ≤ Ta ≤ +70 °C
• Temperature Class: T4
Note 2. Electrical Parameters
(Refer to the Control Drawing)
Note 3. Installation
• Installation should be in accordance with
local installation requirements.
(Refer to the Control Drawing)
Note 4. Signals
Terminals: RS485 Modbus communication
Connector: RS485 Communication
Note 5. Dielectric strength
Dielectric strength≥ 500 V AC, r.m.s.,1 min
Note 6. Specific conditions of use
• Precaution shall be taken to minimize the risk
from electrostatic discharges on the non-
metallic parts of the equipment.
• The connector (FN110 terminal) on the
enclosure contains aluminum and is
considered a potential risk of ignition caused
by impact or friction. When the equipment
is mounted in Zone 0, it shall be installed in
such a way that, even in the event of rare
incidents, an ignition source due to impact
and/or friction sparks is excluded.
• Rigid type conduit shall not be used as the
wiring method.
Note 7. WARNING
• A modification of the equipment would
no longer comply with the construction
described in the certificate documentation.
• Only personnel authorized by Yokogawa
Electric Corporation can repair the
equipment
• USE ONLY YOKOGAWA BATTERY PACK
F9090FC or F9090GC
• THE BATTERY PACK CAN BE REPLACED
IN A HAZARDOUS LOCATION.
THE BATTERY PACK HAS SURFACE
RESISTIVITY GREATER THAN 1G OHM
AND MUST BE PROPERLY INSTALLED IN
THE ENCLOSURE OF THE EQUIPMENT.
CARE MUST BE TAKEN DURING
TRANSPORTATION TO AND FROM THE
POINT OF INSTALLATION TO PREVENT
ELECTROSTATIC CHARGE BUILD-UP
• CELLS MUST BE CHANGED IN A NON-
HAZARDOUS AREA ONLY
• SUBSTITUTION OF COMPONENTS MAY
IMPAIR INTRINSIC SAFETY
• Be sure to use the specified battery pack
and batteries. For details, refer to section 8.5
“Handling Batteries.”
• With an intrinsically safe products, the battery
pack is replaceable in a hazardous area.
During the replacement work, make sure that
dust and water droplets do not enter inside
the products.
For details on how to replace the battery
pack, refer to section 8.3 “Replacing the
Battery Pack.”
