Hach SC1500, Руководство пользователя, Страница: 12 / 86

• Connect the conduit through a conduit hub that holds the conduit securely and seals the enclosure
when tightened.
• If metal conduit is used, make sure that the conduit hub is tightened so that the conduit hub
connects the metal conduit to safety ground.
For installation with a power cable, make sure that the power cable is:
• Less than 3 m (10 ft) in length
• Rated sufficient for the supply voltage and current.
• Rated for at least 70 °C (158 °F) and applicable to the installation environment
• Not less than 1.5 mm
2
(15 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
Connect conduit or a power cord
The controller can be wired for line power by hard-wiring in conduit or wiring to a power cord.
Regardless of the wire used, the connections are made at the same terminals.
Refer to
Figure 7 and Table 3 to connect conduit or a power cord. Insert each wire into the
appropriate terminal until the insulation is seated against the connector with no bare wire exposed.
Tug gently after insertion to make sure that there is a secure connection.
After the power connections are made, install the high-voltage barrier.
Figure 7 Connect conduit or a power cord
1 Ferrite core 3 AC power terminal
2 Protective earth ground terminal 4 Conduit hub (or strain relief fitting for power cord)
12 English