YOKOGAWA AXFA14G - Page 80

<10. Explosion Protected Type Instrument>
79
IM 01E20A01-01EN
(3) Installation
WARNING
• All wiring shall comply with National Electrical
Code ANSI/NFPA 70 and Local Electrical Code.
• In hazardous locations, wiring to be in conduit as
shown in Figure 10.2
• WheninstalledinDivision2,“SEALSNOT
REQUIRED”
• In case the electrodes and/or grounding rings are
madeoftitanium,theowtubeshouldbekept
away from impacts and frictions in hazardous
locations.
Conduit
Magnetic Flowmeter
Sealing Fitting
HAZARDOUS LOCATIONS
18" (457 mm) Max.
F1011.ai
Figure 10.2 Conduit Wiring
(4) Operation
WARNING
• “OPENCIRCUITBEFOREREMOVING
COVERS.”
• “SEALSALLCONDUITSWITHIN18INCHES”in
hazardous locations.
• WheninstalledinDivision2,“SEALSNOT
REQUIRED”
• Take care not to generate mechanical spark when
access to the instrument and peripheral devices in
hazardous locations.
• In case the electrodes and/or grounding rings are
madeoftitanium,theowtubeshouldbekept
away from impacts and frictions in hazardous
locations.
(5) Maintenance and Repair
WARNING
• Theinstrumentmodicationorpartsreplacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void the approval of Factory Mutual Research
Corporation.
• In case the electrodes and/or grounding rings are
madeoftitanium,theowtubeshouldbekept
away from impacts and frictions in hazardous
locations.
Explosion Protected Type Instrument
10