Power Supply Connection - Hach POLYMETRON 8811 Manuel D'utilisation De Base

Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Install the device in a location and position that gives easy access to the disconnect device and its operation.
The analyzer is factory configured to either 110/120 VAC or 220/240 VAC. Make sure to connect the correct
power supply to the analyzer.
Connect equipment in accordance with local, state or national electrical codes. Obey all codes and
regulations for wiring. Install cables into the instrument enclosure through the supplied cable glands.
Use screened and screen earthed cable for the mains connection. The mains wire specifications are:
diameter between 7 and 9.5 mm, 3 cores, 10 Amps minimum current rating, between 1 mm
(AWG18) and 2.5 mm
connections use screened instrument cable. Use also screen earthed cable for the signal
connections.
Note: Equipment intended for permanent connection to the MAINS must have provision for connection of a wiring
system in accordance with ANSI/NFPA 70, NEC, with CSA C22.1
Make sure that a 2 pole circuit breaker with a minimum breaking capcity of 20 A is installed in the
power line. 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.
The analyzer is supplied with a 1 m cable length connected to the power supply box. The cable has a
Binder male connector on the other side. Use the supplied female Binder connector to energize the
system. Refer to

Power supply connection

Power supply connection
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
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
Before preparing the user-supplied cable and wiring the connector, ensure the cable is not connected to the
mains power supply.
1.
2
(AWG14) minimum CSA (Cross Sectional Area). For all other signal
on page 9.
2
, AWG18; ≤ 2.5mm
C A U T I O N
N O T I C E
N O T I C E
2
, AWG14
D A N G E R
2
English 9