Yokogawa digitalYEWFLO (DY) - Manual (Page 161)

<14. EXPLOSION PROTECTED TYPE INSTRUMENT>
14-10
IM 01F06A00-01EN
(Integral Type Vortex Flowmeter and Remote Type
Vortex Flow Detector)
Temperature Code
Ambient
Temperature
Process
Temperature
T4 60°C ≤135°C
T3 60°C ≤200°C
T2 60°C ≤300°C
T1 60°C ≤450°C
Temperature Code: T4 (Remote Type Vortex Flow
Converter)
Ambient Temperature: -40 to 60°C
Enclosure: Type 4X
Electrical Parameters: Vmax=30Vdc,
Imax=165mAdc,Pmax=0.9W,
Ci=12nF, Li=0.15mH
(2) Wiring
• Explosion proof
WARNING
• All wiring shall comply with Canadian
Electrical Code Part I and Local Electrical
Codes.
• In Hazardous locations, wiring shall be in
conduit as shown in the fi gure.
• A SEAL SHALL BE INSTALLED WITHIN
50cm OF THE ENCLOSURE.
• When the equipment is installed in Division
2, “FACTORY SEALED, CONDUIT SEAL
NOT REQUIRED”.
(3) Operation
• Explosion proof
WARNING
• Note a warning label worded as follows.
Warning: OPEN CIRCUIT BEFORE
REMOVING COVER.
• 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 part
replacements by other than authorized
representatives of Yokogawa Electric
Corporation are prohibited and will void CSA
Certifi cation.