Eurotron IRtec Rayomatic 20, Инструкция по эксплуатации

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Instruction Manual MM850341 ed.01a
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Reset
4/20 mA
output
Alarm output
1300 °C
24 Vdc
Power suppy
+
Relè
Alarm output and reset connections
6.5 Emissivity adjustment
IRtec Rayomatic 20
has two rotative switches to set the emissivity of your target. You can change it in the range
from 0.30 to 1.00.
•
Remove the rubber plug on the rear of the instrument.
•
Use a small, plastic screw driver to set the emissivity to the correct value. Thermometer uses the “00” value
to set the emissivity to 1.00. Values lower than “30” are considered by the thermometer equal to 0.30.
Emissivity Adjustment
Es. 85 = 0.85
Decimal Centesimal
IRtec Rayomatic 20
IRtec Rayomatic 40
emissivity can be changed only by using a PC connected to the current loop.
6.6 Positioning
The thermometer has to be installed in an accessible place for any further maintenance operation, and it hasn't to
be exposed to excessive heat, smoke and steam.
The optical path between the lens and the target, should be as much free as possible from smoke and steam.
The pointing axis should be placed with a 90° angle against the target surface; an angle smaller than 45° could be
acceptable for most materials.
NOTE:
A LARGE NUMBER OF MATERIALS HAVE THE EMISSIVITY COEFFICIENT DEPENDENT ON THE VIEWING ANGLE
. L
ARGE
ANGLES
(
MORE THAN
45°)
CAN INDUCE A LARGE ERROR IN MEASUREMENT
.
Before the installation, it's useful to look at the tables supplied together with the instrument, in order to determine
the correct distance and visual field.
NOTE:
THE TARGET AREA HAVE TO BE LARGER THAN THE CALCULATED MEASURING AREA
.
6.7 Mounting and Alignment