Wiring Information - Hach Flo-Station Manuel D'utilisation

• Touch an earth-grounded metal surface such as the chassis of an instrument, a metal conduit or
pipe to discharge static electricity from the body.
• Avoid excessive movement. Transport static-sensitive components in anti-static containers or
packages.
• Wear a wrist strap connected by a wire to earth ground.
• Work in a static-safe area with anti-static floor pads and work bench pads.
Electrical access ports
Make electrical cable connections through the cable strain reliefs.
To supply power with conduit, replace a cable strain relief with a conduit hub.

Wiring information

To keep the environmental rating and for safety:
• 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.
• 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. Put rods or cables in cable strain reliefs.
Wiring for power
Connect power 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.
• Connect equipment in accordance with local, state or national electrical codes.
For installation with a power cable:
• AC models: Use stranded 18–16 AWG cable wires with applicable insulation colors for local code
requirements.
• DC models: Use stranded 22–18 AWG cable wires.
• Make sure that the power cable is visible and easily accessible.
• Make sure that the power receptacle is no more than 3 m (10 ft) from the instrument.
• If used outdoors, make sure that the power cable has an outer cover applicable for outdoor use.
AC power
1. Remove the bottom cover. Refer to
2. Remove approximately 6 mm (¼ in.) of insulation from each wire.
3. Attach the ground wire to the protective earth terminal. Make sure that the ground wire is held
securely. Refer to
4. Put the neutral wire and line wire in the AC power connector. Refer to
5. Tighten each wire connection so that the wires are held securely.
6. Connect the connector to the AC power terminal block. Refer to
7. Tighten the cable strain relief or conduit hub so that the cable or conduit is held securely.
8. Install the bottom cover so that the enclosure is sealed.
10 English
Figure 1
Figure 5.
on page 6.
Figure
Table 1.
5.