Hach FL1500, Руководство пользователя

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Connect to power
The instrument can connect to an AC or a DC power source. When connected to AC power, an
optional external backup battery can supply power if the AC power stops.
Connect to AC power
W A R N I N G
Electrical shock and fire hazards. Make sure that the user-supplied power 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.
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 0.82 mm
2
(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
• 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 0.82–3.3 mm
2
(18–12 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 access door. Refer to Open the access door on page 12.
2. Remove the high-voltage barrier.
3. Put the power cable through a strain relief fitting near the AC power connector.
4. Pull to remove the AC power connector.
5. Install each wire in the connector. Refer to Figure 8 and Table 1 .
6. Push to install the connector in the instrument.
7. Connect the ground wire to the AC ground stud. Refer to Figure 8 .
8. Install the high-voltage barrier.
9. Tighten the cable strain relief or conduit hub.
10. Install the access door.
English 13