Calex PyroEpsilon Série Guide De L'opérateur page 4

Distance and Spot Size
The size of the area (spot size) to be measured determines the distance between the sensor
and the target. The spot size must not be larger than the target. The sensor should be
mounted so that the measured spot size is smaller than the target.
Ambient Temperature
The sensor is designed to operate in ambient temperatures from 0°C to 70°C. For ambient
temperatures above 70°C, an air/water-cooled housing will be required.
Avoid thermal shock. Allow 20 minutes for the unit to adjust to large changes in ambient
temperature.
Atmospheric Quality
Smoke, fumes or dust can contaminate the lens and cause errors in temperature
measurement. In these types of environment the air purge collar should be used to help
keep the lens clean.
Electrical Interference
To minimise electromagnetic interference or 'noise', the sensor should be mounted away from
motors, generators and such like.
Wiring
Check the distance between the sensor and the indicating/controlling device. If necessary,
the PyroEpsilon sensor can be ordered with a longer cable attached.
Power Supply
Be sure to use a 24 V DC (25 mA) power supply.
MECHANICAL INSTALLATION
All sensors come with a 1m cable and a mounting nut. 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. Note: the sensor should be grounded at one
point, either the cable shield termination or the sensor housing, but not both.
Fixed Mounting Bracket
50.0
2 x Mounting Holes M4 Clearance
24.0
9.0
›
4
Ø16.0
12.0
45.0
25.0
60° Rotation
Adjustable Mounting Bracket
9.0
40.0
50.0
2 x Mounting Holes M4 Clearance
24.0
9.0
60° Rotation
15.0
60° Rotation
25.0
48.0