Mechanical Installation; Mounting; Mounting Optical Fiber / Optics (Only Devices With Optical Fiber); Bending Radius Optical Fiber - KPM PROCESS SENSORS METIS M308 User Manual

METIS M308 / M309 / M313 / M316 / M318 / H309 / H316 / H318 (12-pin)
5

Mechanical Installation

5.1

Mounting

▪ The mounting rail on the bottom case is for the stable take-up of for example
of a ball and socket mounting (for fiber optics devices a mounting angle is
recommended, see
▪ Front M5 threaded holes can also be used for mounting (all 4 threads has to
be used for fixing).
▪ The slightest deviation from the optical axis is achieved with the optics
adapter/holder of motor focus and fixed focus devices.
▪ Note that the installation of the pyrometer is free of vibrations, if necessary,
helps the use of rubber absorbers when mounting.
▪ To keep the optical fiber ready for use as long as possible, it should be
exposed as little as possible to permanent movement and mechanical stress.
Lay the optical fiber as possible with a large bending radius, especially if it is
carried along moving parts.
During installation of the optical fiber, it is advisable that both plug ends are not yet connected to the
pyrometer and the optics. Tensile and torsional stresses are to be avoided.
|INFO|
Through manufacturing tolerances the optical and mechanical axis are not running 100% in the same
direction. The pyrometer should be realigned if it is installed again and twisted in the same holder (see
Alignment onto the measuring object).
5.2

Mounting Optical Fiber / Optics (only devices with optical fiber)

5.2.1 Bending Radius Optical Fiber

The color code on the optical fiber
identifies the optic diameter and
minimum bending radius associ-
ated.
Observe the minimum bending ra-
dius when laying the optical fiber.
A bending radius smaller than the specified can result in a stretched or broken optical fiber.

5.2.2 Winding and Unwinding the Optical Fiber

During winding and unwinding the optical fiber must be able to move easily and should
not be twisted. Ideally, one hand winds up the light guide carefully, while the other hand
guides the cable roll. For torsion-free winding only one side of the optical fiber should be
connected, than the other can be moved freely.
|NOTICE|
Avoid strong tensile and torsional forces during rolling and
mounting.

5.2.3 Mounting the Optical Fiber

Assignment fiber to pyrome-
ter and optics: Each fiber is
uniquely associated to a pyrom-
eter and optics. For identifica-
tion, all three components are
tagged with the same device
number. The measurement accuracy can only be guaranteed with proper assignment.
9.3 Accessories)
Color code
of the optical fiber
Blue
Red
White
Fiber Minimum
diameter bending radius
0.4 mm 150 mm / 5.9"
0.2 mm 75 mm / 2,95"
0.1 mm 38 mm / 1,5"
Expl.: Metis with swivel
mounting base, cooling
plate and air purge
5.4
Minimum
bending diameter
300 mm / 111.8"
150 mm / 5.9"
76 mm / 3"
17