Hach Accu4, Руководство пользователя

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• Rated for at least 60 °C (140 °F) and applicable to the installation
environment
• Not less than 18 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
• Connected through a cable gland (strain relief) that holds the power
cable securely and seals the enclosure when tightened
• Does not have a locking type device on the plug
Wiring procedure
Refer to Table 1 , Figure 5 on page 10 and General wiring procedure
on page 10 to connect the controller to power. Supply power to only one
terminal (terminal 3 or 4). Connect line power using the standard three-
wire connection arrangement.
Do not put the sensor cable (and interconnect cable, if used) in the same
conduit with power wiring. Electrical noise may interfere with the sensor
signal.
Table 1 AC power wiring information
Input voltage Terminal Description
Color—North
America
Color—EU
115 VAC,
single phase
3 Hot
Black Brown
230 VAC,
single phase
or split phase
4 Hot
115 or
230 VAC 2 Neutral (N) White Blue
— Protective
Earth (PE)
grounding
strip Green Green with
yellow stripe
Connect the sensor cable
W A R N I N G
Potential Electrocution Hazard. Always disconnect power to the
instrument when making electrical connections.
Refer to General wiring procedure on page 10, Figure 7 and Table 2 to
connect the sensor cable to the controller.
Cut the sensor cable to the shortest applicable length before it is
connected to the controller to prevent unnecessary electrical noise that
may interfere with the sensor signal. Keep the cable away from motors
or other equipment that may give off electrical or magnetic fields.
Directly connect the sensor to the controller to remove potential
problems caused by wet environments and a junction box.
12 English