Electrical Interference; Cable Length; Mechanical Installation; Mounting Brackets - Calex PyroSigma Series Operator's Manual

ELECTRICAL INTERFERENCE

To minimise electromagnetic interference or 'noise', the sensor should be mounted away from
motors, generators and such like.

CABLE LENGTH

Check the length of the cable run between the sensor and the measurement instrumentation.
If necessary, the sensor can be ordered with a longer cable attached.
Also, the cable can be extended using a shielded cable with 4 or more cores (3 if the alarm
output is not used). Ensure the shield is also extended.

MECHANICAL INSTALLATION

All sensors come with a 1 metre cable and two mounting screws. The sensor can be mounted
on brackets or cut-outs of your own design, or you can use the fixed and adjustable mounting
bracket accessories which are shown below.
The supplied mounting screws are for use with a panel or bracket at least 2 mm thick. The
screws are 8 mm long.
Between the mounting holes, there must be a hole to allow the sensor a clear view through
the panel or bracket. This hole must be larger than the lens of the sensor or the aperture of
the air purge, if used. Use as large a hole as possible. Ensure the mounting does not obstruct
the sensor's field of view (FOV); refer to the optical diagram in Specifications and allow a clear
area twice the size of the FOV cone for maximum accuracy.
Note: The sensor must be grounded at only one point, either the cable shield or the mounting
screws, but not both.

MOUNTING BRACKETS

Fixed Mounting Bracket
Ø13.5 Clearance
49.0
31.0
7.0
22.0
2 x Mounting Holes M4 Clearance
4
4 x Mounting Holes Ø3.2 on PCD Ø21.5
33.5
31.0
60°
Adjustable Mounting Bracket
50.0
24.0
9.0
25.0
15.0
60°
49.0
All dimensions in mm
9.0