Yokogawa digitalYEWFLO (DY) - Manual (Page 163)

<14. EXPLOSION PROTECTED TYPE INSTRUMENT>
14-12
IM 01F06A00-01EN
14.5 SAA
WARNING
Only trained persons use this instrument in
industrial locations.
(1) Technical Data
• Intrinsically Safe
Type n
Applicable Standard: AS 2380.1-1989, AS2380.7-
1987, AS2380.9-1991
Certifi cate: AUS Ex 2611X
Type of Protection: Ex ia IIC T4 IP67 (Integral
Type Flowmeter, Remote Type
Flowmeter and Remote Type
Converter)
Hazardous Area: Class I, Zone 0
Maximum Input Voltage (Ui)=30Vdc
Maximum Input Current (Ii)=165mAdc
Maximum Input Power (Pi)=0.9W
Internal Capacitance (Ci)=37nF
Internal Inductance (Li)=0mH
Ambient Temperature: -20 to +60°C
Type of Protection: Ex n IIC T4 IP67 (Integral
Type Flowmeter, Remote Type
Flowmeter and Remote Type
Converter)
Hazardous Area: Class I, Zone 2
Maximum Input Voltage (Ui)=30Vdc
Ambient Temperature: -20 to +80°C
Electrical Connection : ANSI 1/2 NPT female, ISO
M20X1.5 female.
(2) Installation
WARNING
• All wiring shall comply with local installation
requirements and local electrical code.
• Use the suitable heat-resisting cables for the
digitalYEWFLO Series Vortex Flowmeter
when the process temperature exceeds
+200°C.
• In hazardous locations, the cable entry
devices shall be certifi ed fl ame proof type,
suitable for the conditions of use and
correctly installed.
• Unused apertures shall be closed with
suitable fl ameproof certifi ed blanking
elements.
(3) Operation
WARNING
• Open circuit before opening the covers.
• 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 modifi cation or parts
replacements by other than authorized
representative of Yokogawa Electric
Corporation are prohibited and will void the
certifi cation.