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温度コントローラー Calex ExTemp SeriesのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Calex ExTemp Series 17 ページ。 Intrinsically safe infrared temperature sensor and lct loop configuration tool
ページを印刷するPREPARATION
Distance and Spot Size
Ensure the sensor is positioned
so that it can only detect infrared
radiation from the target.
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.
We normally recommend the
target is at least twice the size
of the given measured spot for
maximum accuracy.
Ambient Temperature
The sensor is designed to operate in ambient temperatures from 0°C to 70°C.
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 sensor can be ordered with a longer cable attached. Contact Calex for information about
extending the cable.
Power Supply
A suitable intrinsically safe barrier or isolator must be used. See Specifications for the supply
voltage, current and safety requirements.
MECHANICAL INSTALLATION
Mounting
All sensors come with a hard-wired cable and 2 mounting nuts. 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 in the following diagram.
Note: The sensor must be connected to earth at one point, either the cable shield
termination or the sensor housing.
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