
17
EN
Operating instructions CellaTemp PX 4x 5x 6x
9.3 Transmission factor (one-colour mode)
Besides the emissivity correction, a pyrometer must be adjusted for the transmis-
sion properties of any supplementary lens and/or protective window screwed onto
the pyrometer� Set the pyrometer for the specific transmission factor (a percentage
value) which is indicated either in the product’s data sheet or on the lens itself�
If you are not using any auxiliary lens or protective window, set the parameter to
100�0 (default setting)�
• Transmission factor [
L1
] → [
'.tAU
] =
100.0
or [
L2
] → [
‚".tAU
]
10 Shielding and Grounding
The pyrometer housing is connected to the shielding via the cable connector!
Differences in ground potentials might cause an equalising current to flow between
devices through a cable shielded at both ends� In this case, be sure to install an
additional equipotential bonding line�
To avoid an equalising current, the pyrometer can be mounted electrically insulat-
ed� The shielding must be connected to the plant’s earthing system�
ATTENTION
If the pyrometer is installed without an insulator and without potential equalisati-
on, the interference voltage may not exceed 32V�