Wiring The Instrument - Hach Lange CL17 User Manual

Installation
1 Wall section of the instrument closure
Description
115V Power cord with strain relief
230V Power cord with strain relief
3.8.2

Wiring the instrument

Wire color code for:
North America
IEC
20
Additionally, electrical and instrumentation standards require a local means of removing
power from the product. The instrument is supplied with a power on/off switch that is
located inside the instrument enclosure. To remove relay power from the
instrument, an external customer-supplied 5A fused switch or a 5A breaker is
required.
In hard-wired electrical applications, the power and safety ground service drops for the
instrument should be no longer than 6 meters (20 feet) unless metal conduit is used to
shield the AC power wiring. The wire should be 18 AWG.
In applications where power cords are allowed by local electrical codes and power surges
and transients are not a great concern, a sealing-type strain relief and power cord with
three 18 gauge conductors (including a safety ground wire) can be used. Refer to
Figure 10 for strain relief assembly. The length of the power cord must not exceed
3 meters (10 feet).
Figure 10 Assembling the optional power cord hardware
Connect the unpowered wires to the instrument power terminal as follows:
1. Strip the outside insulation of each wire back ¼-inch. Refer to
2. Connect the three wires to the terminal using the information in
Figure 11 on page 21.
3. Ensure the voltage setting is correct and supply power to the instrument.
Table 3 Terminal wiring information
Protective earth ground
Green
Green with yellow tracer
Item number
5448800
5448900
Figure 14 on page
Hot or Ø1
Black
Brown
23.
Table 3 and
Neutral or Ø2
White
Blue