Page 6
RT8A Thermometer
Installation Guide
5 Using a Sighting Tube
When fabricating the sighting tube be sure that the minimum internal diameter is
no less than that shown in Fig. 6 for the length of sighting tube.
Alternatively LAND offer a suitable sighting tube, i.e. Type FS6 150mm (6in) long.
An adjustable sighting tube assembly facilitates efficient temperature
measurement in the exit chute where airborne dust would otherwise adversely
affect the thermometer readings.
A locking collar welded to the top plate of the chute enables the sight tube to be
adjusted to the required height above the stone (See Fig. 3).
A plain, fixed sight tube is sufficient for measurement in the mixer.
Fig. 6 Sighting tube dimensions
1.04
1.06
1.14
1.48
1.73
0
3.9
7.9
11.8
15.7
Minimum Sight Tube ID Size (in)
Sight Tube Length (in)
26.5
27
29
37.5
44
0
100
200
300
400
Minimum Sight Tube ID Size (mm)
Sight Tube Length (mm)
