YOKOGAWA FN310, User Manual

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<2. Handling Cautions>
2-21
IM 01W03D01-01EN
• 4-20mA Loop Connection [4-wire (Active)]
F0225.ai
4
5
3
2
1
1
2
3
4
Wireless
Communication
Connector Terminal
Not used Ui ≥ Uo
Ii ≥ Io
Pi ≥ Po
Ci ≤ Co - Ccable
Li ≤ Lo - Lcable
Wireless Communication
(Connector)
COMM
(Terminal 3, 4)
FN310
Field Wireless Multi-Protocol
Module(HART)
Intrinsically Safe
Apparatus (1)
Associated Apparatus (3)
Hazardous Area (*2)
Hazardous Area
or
Non-Hazardous Area
Uo ≤ Ui
Io ≤ Ii
Po ≤ Pi
(Linear Source)
Co ≥ Ci +Ccable
Lo ≥ Li + Lcable
Associated Apparatus (1)
Non-Hazardous Area
COMM
Not used
Uo ≤ Ui
Io ≤ Ii
Po ≤ Pi
(Linear Source)
Co ≥ Ci +Ccable
Lo ≥ Li + Lcable
Uo : 5.88 V
Io : 613 mA
Po : 907 mW
Co : 5.82 µF
Lo : 25 µH
Ui : 30 V
Ii : 300 mA
Pi : 1 W
Ci : 20 nF
Li : 0 µH
*1 As allowable connection values of an Intrinsically Safe
Apparatus (2) or an Associated Apparatus (2), the
following conditions of (a) or (b) must be satisfied.
(a) {( Li × 100 ≤ Lo) or (Ci × 100 ≤ Co)} and {Li ≤ (Lo -
Lcable) and Ci ≤ (Co - Ccable)}
(b) { Li ≤ (Lo / 2 - Lcable) and Ci ≤ (Co / 2 - Ccable)}
and [{(Ci + Ccable) ≤ 600 nF for Group IIC} or {(Ci +
Ccable) ≤ 1μF for Group IIA, IIB}]
*2 As for 4-20mA Loop Connection [4-wire (Active)], the
level of protection of COMM circuit is reduced to “ib”.
Note 4. Battery Pack
• Use only YOKOGAWA battery pack
F9090FC or F9090GC.
WARNING
• 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.”
Note 5. Special conditions for Safe Use
• Precautions shall be taken to minimize
the risk from electrostatic discharge of
nonmetallic parts. When the equipment
is used in hazardous locations, avoid any
actions which generate electrostatic charges,
such as rubbing with a dry cloth.
• The connector (FN110 terminal) on the
enclosure contains aluminum and is
considered a potential risk of ignition caused
by impact or friction. When the connector is
used in a potentially explosive atmosphere
requiring EPL Ga, it must be installed such
that, even in the event of rare incidents,
ignition sources due to impact and/or friction
sparks are excluded.
(2) Operation
WARNING
Take care not to generate mechanical sparking
when access to the instrument and peripheral
devices in a hazardous location.
(3) Maintenance and repair
WARNING
The instrument modification or parts replacement
by other than an authorized representative of
Yokogawa Electric Corporation is prohibited and
will void the certification.
2.7 EMC Conformity Standards
EN61326-1 Class A Table 2, EN55011 Class A
CAUTION
This instrument is a Class A product, and it is
designed for use in the industrial environment.
Please use this instrument in the industrial
environment only.