LumaSense Technologies KTG 218 - Handbuch (Seite 15)

Infrared Temperature Switch KTS 218 · KTG 218
6
6 Mechanical installation
6.1
Accessories (option)
Numerous accessories guarantee easy installation of the pyrometers. The following overview shows a selec-
tion of suitable accessories. You can find the entire accessory program with all reference numbers on sec-
tion 13.2 Reference numbers
Mounting:
For easy mounting and aligning the switch to the
measured object:
- Mounting angle, adjustable
- Ball and socket mounting
- Mounting support with retaining pin
Mounting angle,
adjustable
Ball and Socket
mounting
Mounting
support with
retaining pin
Cooling:
The completely covered cooling jacket with additional
air purge unit for the optics protects the pyrometer if
exposed to a hot environment.
Cooling jacket with integrated air purge
Miscellaneous:
The air purge protects the lens from contamination with
dust and moisture. It has to be supplied with very clean
(dry and oil-free) pressurized air and generates an air
stream shaped like a cone.
The air purge unit with 90° mirror enables measure-
ments 90° shifted to the measuring beam. The heat
radiation is reflected at a mirror by 90° and allows
measurements for example at regional conditions.
Air purge Air purge with
90°-mirror
7 Optics
The switches are equipped ex works with one of the following optics. These lenses are focusing to certain
distances. In these distances each lens achieves its smallest spot size. The spot size will enlarge in any
other distance (shorter or longer). Please notice that the measuring object must be as least as big as the
spot size to avoid measurements of background radiation.
The name of the optics (e.g. optics 400) shows the measuring distance in mm (here: 400 mm, measured at
the front of the lens) in which it has the smallest spot size (e.g. 5.5 mm).
The following drawings show the size of the spots (in mm) in dependence of the measuring distance. Values
between the mentioned data can be calculated by interpolation. The spot size for measuring distance 0 is the
aperture diameter of the optics.