Wiring for power
D A N G E R
Electrocution hazard. Protective Earth Ground (PE) connection is required.
D A N G E R
Electrical shock and fire hazards. Make sure to identify the local disconnect clearly for the conduit
installation.
W A R N I N G
Potential Electrocution Hazard. If this equipment is used outdoors or in potentially wet locations, a
Ground Fault Interrupt
device must be used for connecting the equipment to its mains power source.
N O T I C E
Install the device in a location and position that gives easy access to the disconnect device and its operation.
Supply power to the instrument with conduit or a power cable. Make sure that a circuit breaker with
sufficient current capacity is installed in the power line. The circuit breaker size is based on the wire
gauge used for installation.
For installation with conduit:
•
Install a local disconnect for the instrument within 3 m (10 ft) of the instrument. Put a label on the
disconnect that identifies it as the main disconnect device for the instrument.
• Make sure that the power and safety ground service drops for the instrument are 18–12 AWG and
the wire insulation is rated for 300 VAC or higher.
• Connect equipment in accordance with local, state or national electrical codes.
• If metal conduit is used, make sure that the conduit hub is tightened so that metal conduit is
securely bonded to the safety ground wire through the conduit backing plate.
For installation with a power cable, make sure that the power cable is:
• Less than 3 m (10 ft) in length
• Rated for at least 60 °C (140 °F) and applicable to the installation environment
• Rated for the power requirement specifications. Refer to Specifications on page 5.
• 14–10 AWG with applicable insulation colors for local code requirements
• A power cable with a three-prong plug (with ground connection) that is applicable to the supply
connection
• Does not have a locking type device on the plug
Connect to power
Connect power with conduit or a power cable. Refer to Figure 7 and Table 10. An AC power cable is
not supplied with the analyzer.
After power supply wiring has been installed, make sure that the field wiring box cover is installed
and the screw is tightened with a screwdriver so that the cover is correctly bonded to protective
earth.
After the wiring is completed, tighten the conduit fittings. Make sure that the door is tightly closed so
that the safety protections and the enclosure environmental ratings are maintained.
18 English
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