Air Requirements (Air-Purged / Cooled Units Only) - Ametek LAND LSP HD Series User Manual

LSP Linescanner Head
HD
3.3 Air Requirements (Air-Purged / Cooled Units Only)
If the LSP Linescanner Head is to be used in an environment where high
HD
concentrations of dust are likely to be encountered, the AMETEK Land Air Purge
Baseplate mounting accessory must be used. The baseplate incorporates a cross flow
purge for the scanner window. The purge is designed to keep the window free from
dust particles, it will not clear the instrument sight path.
Connect the air supply via the G3/8 threaded hole at the end of the mounting plate.
If possible, ensure that the air purge exit direction is downwards. Make sure that air
purge exit is not impeded by mounting structures.
The air purge flow rate depends upon local conditions of the installation and scanner
orientation, but a rate of 300 litres per minute / 12.36 ft³ per minute at an inlet
pressure of 1.4psi / 1m WG is typically sufficient.
CAUTION
To minimise the risk of permanent damage, use a high quality air supply.
The air used must be dry and free from oil.
Air purge direction
Restriction of purge air
by obstruction in this
area
Page 18
Fig. 5 Air Purge
User Guide
Air supply