4. The mounting and wiring
4.1. Location
The distance between the SDIS and the measured product is not critical and depends on the
scanning angle so as to cover the entire measurement field. Measured product may not fill the
entire sensor field of view. Just intersects only a portion of 1 cm ² at a distance of 4 m sensor
The optimal distance between the sensor and the various types of materials are as follows:
Material
Distance between product and sensor
Wires with a diameter of 5-12 mm
0,20 – 3 m
Small bars, 10 × 10 to 40 × 40
0,20 – 4 m
Billets and small beams
0,50 – 6 m
Blooms
minimum 2 m
Thin sheets
1,00 – 6 m
Thick plates
1,00 – 8 m
Slabs
minimum 2m
For very hot products it is the best to place the sensor as far as possible to avoid excessive
destruction due to direct radiation.
For cold and less-emitting products is the signal-to-noise ratio increased by placing sensors in
the shortest possible distance.
The sensing surface should ideally be perpendicular to the measured product.
When selecting the location of the sensor attention to the following must be paid:
Other source of infrared radiation in addition to the measured material can not intersect
the sensor field of view (door furnace, the reflection of the product in the water pool, sun
reflection from shiny metal in the area, etc.)
Field of view of sensor must not be covered with any other product than the product being
measured
4.2. Mounting
SDIS has an adjustable mounting foot allows horizontal rotation
and vertical tilt. Mounting base is fitted with 18 mm hole for
mounting on the structure.
The stand is strong enough to ensure a perfect fit sensor. The sensor
is equipped with connections for enclosure cooling water and
compressed air for cleaning and protection of optics.
They can be used in heavy metallurgical environments (high
temperature, humidity, dust).
In some cases, however, it is useful to protect the sensor with the heat resistant screen and in
the case of excessive steam with additional ventilation. To increase the detection accuracy and
lifetime of the sensor should be mounted on a solid, non-shaking pedestal.
Air
Water
