Isolation Kit - RayTek MI3 Operating Instructions Manual

10.3.3 Isolation Kit

The isolation kit (MI3100ISOKIT) can be used likewise for the fixed mounting bracket (XXXMI3100FB)
and the adjustable mounting bracket (XXXMI3100ADJB). Two non-conductive rings insulate the
sensing head (1M, 2M) electrically from the mounting bracket. The isolation kit is used to implement
installations with one earth grounded point only, see section 4.5
The maximal ambient temperature for the isolation kit is 250°C (482°F). The delivery for the isolation
kit consists of two insulating rings made of Teflon and a mounting nut made of stainless steel. The
desired mounting bracket needs to be ordered separately.
Make sure that the insulating rings are mounted so that both extruded lips facing each other. Use the
two mounting nuts to secure the arrangement.
Installing the Isolation Kit requires a mounting bracket in its latest version (inner
diameter of 20 mm (0.79 in) instead of 18.5 mm (0.73 in) for the previous version)!
10.3.4 Air Purge Collar
The Air Purge Collar is used to keep dust, moisture, airborne particles, and vapors away from the
lens. It can be mounted before or after the bracket. The Air Purge Collar comes with a 1/8" NPT
stainless steel fitting. Air flows into the fitting and out the front aperture. The pressure of air should be
0.6 to 1 bar (8.7 to 15 PSI). Clean, oil free air is recommended.
Figure 72: Dimensions of Air Purge Collar (XXXMI3100AP)
MI3
Figure 71: Installing the Isolation Kit (MI3100ISOKIT)
Exemplary shown for fixed mounting bracket
Rev. G Nov/2015
Electrical
Extruded Lips facing each other
Accessories
Interference, page 24.
Isolation Kit
Fixed Mounting Bracket
81