U3000/U4000 User Manual
7
(Issue 2.0)
2: Installation
2.1
Safety Precautions and Warnings
2.2
Installing the U3000/U4000 instrument
2.2.1 Positioning the instrument
The U3000/U4000 instrument should be installed as close as conveniently possible to the pipe-mounted
ultrasonic sensors. Standard transducer cables are 5 metres in length with 3 metre 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 100m can be provided – consult Micronics Ltd for further information and availability.
A suitable mains supply must be available to power the instrument (an optional 24V a.c./d.c. supply module is
available). The external supply must be suitably protected and connected via an identifiable isolator. A
500mA fuse is fitted internally in the instrument’s input supply line.
2.2.2 Mounting the instrument
Ideally the U3000/U4000 enclosure should be fixed to a wall using three M4 screws – see
Figure 2.3
.
1.
Remove the U3000/U4000 terminal cover.
2.
Fix a screw into the wall at the required point to align with the mounting keyhole on the back of the
enclosure.
3.
Attach the enclosure to the wall using the keyhole screw mounting.
4.
Align the enclosure then mark out the positions for the two remaining screw fixings through the slots near
the bottom corners of the enclosure. Then remove the enclosure, and drill (and plug) the fixing points.
5.
Clear the site of any dust/debris then mount the enclosure on the wall.
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
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.
