Dwyer UFC User Manual download pdf (Page 11)

2: Installation

2.1 Safety Precautions and Warnings

2.2 Installing the UFC Instrument

2.2.1 Positioning the instrument

The UFC instrument should be installed as close as conveniently possible to the pipe-mounted ultrasonic

sensors. Standard transducer cables are 16.5 ft (5 m) in length with 33 ft (10 m) cables being optionally available.

Where, for operational reasons, it is not possible to mount the instrument this close to the sensors, bespoke

cables of up to 328 ft (1000 m) can be provided. Consult Dwyer for further information and availability.

A suitable mains supply must be available to power the instrument (an optional 24V (ac/dc) supply module is

available). The external supply must be suitably protected and connected via an identifiable isolator. A 500 mA

fuse is fitted internally in the instrument’s input supply line.

WARNING

LETHAL VOLTAGES

You may be exposed to potentially lethal (mains) voltages

when the terminal cover of this instrument is removed.

Always isolate the supply to this instrument before removing

the terminal cover.

WARNING

LETHAL VOLTAGES

This instrument must be installed by an electrically qualified

technician aware of the potential shock hazards presented

when working with mains powered equipment.

WARNING

SUPPLY EARTHING

If the equipment is powered from a 24 Vac supply then the

supply must be isolated from earth.

Caution

IP65 Enclosure Protection

Blanking plugs are fitted to the cable glands on leaving the manufacturer.

In order to preserve the enclosure’s IP65 rating, ensure that the blanking plugs

remain fitted in any unused cable gland.

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Dwyer UFC User Manual Page 11