Hach CD500 Bedienungsanleitung Seite 11

• Make sure that the diameter of the cables used is 4.3 to 11.4 mm (0.17 to 0.45 in.) so that the
cable strain reliefs hold the cables securely when tightened. Use 24 to 12 AWG to connect to the
terminals.
• Do not put more than one cable in a cable strain relief.
• Close all enclosure openings that are not used with cable strain reliefs or hardware (not
conductive) approved by local electrical codes. Seal the cable strain reliefs that are not used with
rubber cords (supplied) or cables.
Items to collect:
• Screwdriver, Phillips
• Screwdriver, flat-head, small
• Wire stripper
Connect to AC power
Electrical shock and fire hazards. Make sure that the supplied cord and non‐locking plug meet the
applicable country code requirements.
Connect to AC power with the manufacturer/customer-supplied AC power cord or with conduit. Make
sure that a circuit breaker with sufficient electrical current capacity is installed in the power line.
Note: The power cord is not supplied with the instrument.
Installation with a power cord
For installation with a power cord, make sure that the power cord is:
• Less than 3 m (10 ft) in length
• Rated for 300 VAC, 10 A minimum
• Rated for at least 70 °C (158 °F) and applicable to the installation environment
• If installed outdoors, the power cord jacket insulation is rated for outdoor use
• Not less than 0.75 mm
• 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
• Make sure that the power cord plug is near the instrument and is easily accessible
Installation with conduit
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 0.75 mm
AWG) (and the wire insulation is rated for 300 VAC or higher and 70 °C (158 °F) minimum.
• Connect equipment in accordance with local, state or national electrical codes.
• 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.
• Always install a sealing plug in conduit openings that are not used.
1. Open the controller cover. Refer to
2. Put the power cable through the AC power strain relief fitting. Refer to
3. Tighten the cable strain relief or conduit hub.
4. Close the controller cover.
D A N G E R
2
(18 AWG) with applicable insulation colors for local code requirements
Open the controller cover on page 10.
Figure 5 and
2
(18
Table 3.
English 11