VESDA
®
LaserSCANNER Product Manual
33
8.
Unscrew the two manifold retaining screws (G).
Figure 24 - Remove the chassis
9.
The manifold is held in place by four tabs (H). Use a flat head screw driver to lever out the
tabs near the head termination card, and lift up that end of the manifold. While holding the
manifold up, use the screw driver to lever out the other two tabs. This is a tight fit. As you lift
out the manifold note that the flow sensor and scanner cables disappear through a hole in
the manifold. Once the manifold has been lifted out you can see that these cables are still
connected to the flow sensor board on the air inlet pipe manifold.
Note:
The chassis consists of the detection chamber, head processor card and flow
sensors. These are factory calibrated as a matched set and must not be separated.
separating the set and replacing it with components from another LaserSCANNER
will cause the detector to malfunction. This will require the chassis to be returned to
the factory.
10. Unscrew the three screws holding the pipe inlet in place (I). Two screws are hidden in holes
in the PCB (Flow sensor board).
11.
Lift the air inlet up and out.
Figure 25 - Removing pipe inlet manifold
12. Attach the replacement manifold and chassis by reversing the procedure above.
13. Configure the LaserSCANNER using VConfig PRO or VSM3 by highlighting the detector in
the
Device Tree Window
and selecting
Restore Node Configuration
from the
Device
Menu
, or reprogram the detector manually using the LCD Programmer
Note:
Power cables must be the last to be connected. Connecting the power cables
before all of the data cables can lead the unit to malfunction, requiring the
LaserSCANNER to be returned to the factory.
Legend
G
2 Manifold retaining screws
H
4 Retaining tabs
G
G
H
H
H
H
Legend
I
3 Pipe-inlet retaining screws
J
Pipe inlet manifold
I
I
I
J
