Yokogawa AXFA14G/C - Manual (Page 115)

IM 01E20C02-01E 12-4
12. EXPLOSION PROTECTED TYPE INSTRUMENT
(3) Operation
For CSA C22.2 Series
WARNING
WARNING : OPEN CIRCUIT BEFORE REMOV-
ING COVER.
OUVRIR LE CIRCUIT AVANT
D’ENLEVER LE COUVERCLE.
• Take care not to generate mechanical spark
when access to the instrument and peripheral
devices in hazardous location.
For CSA E79 Series
WARNING
WARNING : AFTER DE-ENERGIZING, DELAY
20 MINUTES BEFORE OPENING.
APRÉS POWER-OFF, ATTENDRE
20 MINUTES AVANT D’OUVRIR.
• Take care not to generate mechanical spark
when access to the instrument and peripheral
devices in hazardous locations.
(4) Maintenance and Repair
WARNING
The instrument modification or parts replacement
by other than authorized representative of
YOKOGAWA Electric Corporation or
YOKOGAWA Corporation of AMERICA is
prohibited and will void Canadian Standards
Explosionproof Certification.
Conduit
Magnetic Flowmeter
Sealing Fitting
HAZARDOUS LOCATIONS
50 cm Max.
F1203.EPS
Figure 12.3.1 Conduit Wiring
12.4 IECEx
WARNING
Only trained persons use this instrument in
industrial locations.
(1) Technical Data
Applicable Standard:
IEC60079-0: 2004, IEC60079-1: 2003,
IEC61241-0: 2004, IEC61241-1: 2004,
IEC60529: 1999 + Edition 2.1: 2001
Certificate: IECEx KEM 05.0018
IECEx Flameproof Type
Ex d IIC T6
Maximum power supply voltage: 250 Vac/130 Vdc
Excitation Circuit: 140V max
Enclosure: IP66, IP67
Ambient Temp.: –40
°C to +60°C (–40°F to +140°F)
IECEx Type of Protection “Dust”
Ex tD A21 IP6x T95
°C
Maximum power supply voltage: 250 Vac/130 Vdc
Excitation Circuit: 140V max
Enclosure: IP66, IP67
Maximum surface temperature: T95
°C (+203°F)
Ambient Temp.: –40
°C to +60°C (–40°F to +140°F)
(2) Installation
WARNING
• All wiring shall comply with local installation
requirements and local electrical code.
• In hazadous locations, the cable entry devices
shall be of a certified IECEx flameproof type,
suitable for the conditions of use and correctly
installed.
• Unused apertures shall be closed with suitable
flameproof certified blanking elements. (The
plug attached is certified as the flameproof and
IP66 or IP67 as a part of this apparatus.)
• In case of ANSI 1/2 NPT plug, ANSI hexagonal
wrench should be applied to screw in.