Infrared Window


Preliminary analysis :

p Identification of areas to control.

p Definition of the locations and the number of H.VIR® windows, taking into account the field of vision and the possibilities of the camera used.

p Measurement of the thickness of the sheets on which the portholes will be mounted. In the case where they are larger than 4 mm, 2 thread versions are available as options: 
• Reference L1 thread length 15 mm 
• Reference L2 thread length 20 mm

Preparation :

  From the drilling plan provided:

p Make an opening in the door of the cell according to a diameter defined for each porthole using a GREENLEE type punch, or by laser and jet of water according to plan provided.

p Affix self-adhesive flat gasket # 4 on the inside of panel # 7.

p Make sure Hood # 1 is securely screwed to Frame # 2.

p Place mount # 2 on the front (be careful the flat seal # 3 must be in place on the mount).

p Tighten the fixing ring no. 5 using the specific key that can be fitted to all torque wrenches no. 6 by screwing counterclockwise.

p The tightening torque must be: 

H.VIR® 75: 50Nm or 5 Kg 
H.VIR® 85 & H.VIR® 85 Exr® type
 : 65 Nm or 6.5Kg 
H.VIR® 105 : 80 Nm or 8 Kg
Note: this operation only requires about ten minutes per window.



The H.VIR® window is particularly suitable for the following applications:

  • High voltage protection cells (visualization of cable connectors, circuit breakers, fuses and fuse holder).
  • High-Low Voltage Transformers: Terminal Box ...
  • Low voltage distribution (400V): general circuit breaker (distribution bar connection - connection and crimping of cables), low voltage starters, plug-in drawers ...
  • Electric motors (medium and low voltage except ADF): terminal box, DC motor collectors, asynchronous motor bushings.

As a standard model the H.VIR® window meets the normal conditions of use of electrical cabinets and transformers which are:

  • Exposure temperatures between - 40 ° C + 70 ° C.
  • Maximum differential pressure of 1.2 bar.

It is designed for internal and external operation under standard environmental conditions. The hood must be screwed onto the frame outside inspection sequences.