User manual

Accessories
MI 59
8.8ProtectiveWindow
Theprotectivewindowcanbeusedtoprotectthesensingheadfrom
dustandothercontamination.Thisshouldbeappliedespeciallyfor
sensors without a lens. These are all models with an optical
resolutionof2:1.
The protective window is made from nonpoisonous zinc sulfide,
withatransmissionfactorof
0.75± 0.05.Ithas anouterdiameterof
17 mm (0.67 in). The protective window can be dir ectly screwed to
the sensing head. It withstands ambient temperatures up to 180°C
(356°F).
For correcttemperature readings, the transmission of the
protectivewindowmustbesetviathecontrolpanelin
the
sensor’s electronic housing, see section
6.2 Setting of
Modes
onpage35!
Figure44:ProtectiveWindow(XXXMIACPW)