VESDA
®
LaserSCANNER Installation Manual
Version 1.3
13
6.9 Connecting the Air Sampling Pipe
The air inlet ports are designed to fit a standard pipe of 25mm (1in) OD. A tapering of the air
inlet ports prevent the pipes from being inserted beyond 15mm (5/8in).
Any of the four inlet ports may be used. Ensure that the correct pipes in use are selected when
programming the detector.
Note: There must be a length of 500mm (19.6in) of straight pipes before terminating the
pipes at the air inlet ports of the detector.
Note: When using a ¾ inch pipe which has a 1 1/16 inch OD, use the adaptor supplied
with the LaserSCANNER to connect the pipes to the inlet manifold.
a) De-burr and square off the end of the sampling air pipes. Ensure the pipes are free from
swarf.
b) Remove the plugs from the inlet and exhaust ports.
Do not remove the plugs from the
inlet ports if the ports are not used.
c) Insert the pipes into the inlet and/or exhaust ports ensuring a firm fit. DO NOT glue these
pipe connections.
d) Pipe the exhaust air where necessary.
Caution:
DO NOT GLUE THE AIR INLET AND EXHAUST PIPE CONNECTIONS.
Glued connections make disconnecting the sampling air pipes from the
LaserSCANNER extremely difficult during maintenance and will result in
damage to the equipment.
6.10 Cabling Using Glands and Conduits
6.10.1 Using
Glands
(a) If using cable glands, use the correct gland size to fit into the 25mm (1in)
∅
cable entry port.
(b) Run the wires through the glands and into the LaserSCANNER enclosure. Use your local
codes and electrical standards for cabling.
6.10.2 Using
Conduits
(a) Terminate the conduits at the cable entry ports on the sides of the box using the appropriate
conduit connectors.
(b) Run the wires through the conduits and into the LaserSCANNER enclosure. Use your local
codes and electrical standards for cabling.
