Series PC Manual V 1.0 - Rev. 3 – 03/01/01 DS Europe
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3.4. EXTERNAL INSTALLATION
Installed with brackets, clamps etc.: all the brackets and the hexagonal head fastening nut
must be made of non -magnetic material (=NM = non-magnetic: aluminium, brass, AISI
300 series stainless steel).
4. MAGNETIC CURSORS
Figures 3, 4 and 5
4.1. DIFFERENT MODELS
They include: magnetic rings, floats, slides (Mod. PCR).
All these models include: built-in magnets whose magnetic field may be radial or axial with
reference to the magnetostrictive waveguide axis.
In order to work, it is essential that their magnetic field is sufficiently high and it is entirely
coupled along the waveguide.
4.2. POLARITY OF MAGNETIC FIELD
Magnetic field polarity is established by the Manufacturer of the Transducers. No other
polarity values are permitted as they might jeopardise performance. For this reason, be
sure to follow indications in Figures 3-4-5.
4.3. HOW TO RECOGNISE POLARITY OF A MAGNET
The needle of a common compass is a magnet. The needle end, attracted by the Earth’s
North Pole is defined as “North”.
According to the laws of physics regarding attraction of opposing poles, the North pole of a
magnet attracts the South pole of a compass.
When necessary the North pole is marked with a coloured dot.
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