IM 01E20D01-01E
8-7
8. EXPLOSION PROTECTED TYPE INSTRUMENT
For CSA E79 Series
(Integral Flowmeter)
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.
(Remote Flowtube)
WARNING
WARNING :DE-ENERGIZE BEFORE OPEN-
ING.
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 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.
F0806.EPS
Figure 8.3 Conduit Wiring
8.4 IECEx
WARNING
Only trained persons use this instrument in
industrial locations.
(1) Technical Data
*AXF002C – AXF400C
Applicable Standard:
IEC60079-0: 2004, IEC60079-1: 2003,
IEC60079-7: 2001, IEC60079-11: 1999,
IEC60079-18: 2004,
IEC61241-0: 2004, IEC61241-1: 2004,
IEC60529: 1999 + Edition 2.1: 2001
Certificate: IECEx KEM 05.0018
(Integral Flowmeter)
IECEx Flameproof Type
Ex demb [ia] IIC T6...T3
Electrode Circuit Um: 250 Vac/dc
Maximum power supply voltage: 250 Vac/130 Vdc
Excitation Circuit: 140V max
Enclosure: IP66, IP67
Temperature Class:
T0811.EPS
Temperature
Class
–40°C to +85°C (–40°F to +185°F)
–40°C to +130°C (–40°F to +266°F)
–40°C to +120°C (–40°F to +248°F)
–40°C to +70°C (–40°F to +158°F)T6
Process Temperature
T4
T5
T3
Ambient Temp.:
PFA Lining; –40˚C to +60˚C (–40˚F to +140˚F)
Ceramics Lining; –15˚C to +60˚C (+5˚F to +140˚F)
IECEx Type of Protection "Dust"
Ex tD A21 IP6x T95˚C, T105˚C, T120˚C, T130˚C
Electrode Circuit Um: 250 Vac/dc
Maximum power supply voltage: 250 Vac/130 Vdc
Excitation Circuit: 140V max
Enclosure: IP66, IP67
Maximum surface temperature:
T0812.EPS
Maximum Surface
Temperature
–40°C to +85°C (–40°F to +185°F)
–40°C to +130°C (–40°F to +266°F)
–40°C to +120°C (–40°F to +248°F)
–40°C to +70°C (–40°F to +158°F)T95°C (+203°F)
Process Temperature
T120°C (+248°F)
T105°C (+221°F)
T130°C (+266°F)
Ambient Temp.:
PFA Lining; –40˚C to +60˚C (–40˚F to +140˚F)
Ceramics Lining; –15˚C to +60˚C (+5˚F to +140˚F)