Keller CellaCast PA 8 Serie Guide Rapide page 16

Quick Start Guide CellaCast PA 8x
To protect the laser against overload, an over temperature is provided. At temperatures above
60 °C, the laser switches of an can no longer be activated. To check, whether the laser is acti-
vated, the parameter LED lights up.
EN
In normal operation, the laser is switch off. After activation, the laser switch of again after 2 – 15
minutes. The operator must be familiar with the pyrometer and above safety guidelines.
The activated laser pilot light can influence the measured temperature. This influence will
vary, depending on the instrument model and the temperature
If focusing is not possible during installation, focusing can also be done outside the plant.
To do this, set the pyrometer to the same distance as the distance between the pyrometer
and the pouring stream.
9 Parameterization
On delivery, the pyrometer is parameterized on a discontinuous pouring stream.
It is only necessary to change the parameters if the casting time is < 5 s
The start of a measuring cycle is automatically detected and depends on limit 1, limit 2 and the
dead time. Before starting the measurement, Limit 1 must have fallen below at least once. Limit
2 must be exceeded continuously for the duration of the dead time (T.DEL). If necessary, the
limits are to be adapted.
Two-colour channel [Qu] -> ATD function [Q . A td]
Parameter
[LI . 1 ]
(LI . 2 )
1: Measuring object in front of the pyrometer
2: Limit 2 [LI . 2]
3: Limit 1 [LI . 1]
Function
Limit 1
Limit 2
4: Time delay [T . D EL]
5: Sampling time [T . A CT]
Default
1100 °C
1200 °C