Hach-Lange ORBISPHERE Model 51x User Manual - Manual (Page 37)

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Installation
3.7.3 Power supply connection (high voltage instruments)
High voltage instruments (100-240 VAC) have a 4-pin male connector pre-wired internally with a
male BINDER connector ready for mains connection. A compatible female connector is supplied
with the instrument.
If this female connector was supplied with a mains power plug already pre-attached (cable part
numbers 33031, 33032, 33033 and 33034) then the female connector can be plugged directly
into the instrument power connector. The two connectors are grooved to avoid an incorrect
fitting. Tighten the female connector to the instrument power connector finger-tight.
If no power cable was ordered with the equipment, a mains power plug must be connected to
the supplied female connector as described in the following procedure.
User-supplied power cable specifications:
• 3-wire (live, neutral and earth)
• cable ø ≥ 7mm; ≤ 9.5mm
• wire selection ≥ 1mm 2 , AWG18; ≤ 2.5mm 2 , AWG14
Prepare the user-supplied power cable as follows:
Strip off 23 mm (0.9 ins.) of shielding from the power cable. Cut back the live and neutral wires
to 15 mm (0.6 ins.) in length but leave the earth wire as is. Then strip off a small amount of
external insulation from the three wires as required:
Wire the female connector as follows:
1. Take the narrow end of the connector (4) in one hand and the main body (2) in the other
and unscrew the two. Pull away the cable clamp (3) and unscrew the end plug (1) to reveal
the four parts that make up the connector.
2. Loosen the screws on the cable clamp (3) to allow enough room to pass the power cable
through.
CAUTION
Personal Injury Hazard. Only qualified personnel should conduct the tasks described in this
section of the manual.
WARNING
Potential Electrocution Hazard. Always disconnect power to the instrument when
making electrical connections.