Wiring For Power - HACH LANGE PAT700 Manual Básico Del Usuario

Figure 6 Conduit wiring connections
1 Power supply wiring enclosure
2 4-20 mA output connector block (J17)
3 Discrete input connector block (J24)

Wiring for power

Electrocution hazard. Protective Earth Ground (PE) connection is required.
Electrical shock and fire hazards. Make sure to identify the local disconnect clearly for the conduit
installation.
Potential Electrocution Hazard. If this equipment is used outdoors or in potentially wet locations, a
Ground Fault Interrupt device must be used for connecting the equipment to its mains power source.
Install the device in a location and position that gives easy access to the disconnect device and its operation.
Supply power to the instrument 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 and
the wire insulation is rated for 300 VAC or higher.
14 English
4 Discrete output connector block (J22)
5 I/O circuit board
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