Ambient Temperature; Power Supply - Calex PyroUSB Serie Guía Del Operario

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 ambi-
ent 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 neces-
sary, the PyroUSB sensor can be ordered with a longer cable attached.

poWer supply

Be sure to use a 24 V DC (22 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.
50.0
2 x Mounting Holes M4 Clearance
24.0
9.0
›
4
Fixed Bracket (FBL)
Ø20.0
12.0
45.0
25.0
60° Rotation
Adjustable Bracket (ABL)
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