VIPIRS
Frequently asked questions
Common questions about VIPIRS from 3G Electric.
What is the maximum temperature rating for the VIPIRS viewing pane optic?
The crystal optic used in VIPIRS viewing panes is rated for a maximum temperature of 2,552°F (1,400°C). This rating applies to the optic material itself and indicates the highest radiant temperature it can withstand without degradation. It does not mean the entire assembly can be exposed to that temperature, as the aluminum frame and sealing components have lower limits. For specific installation temperature limits, refer to the manufacturer's datasheet for the IW2000, IW3000, or IW4000 model.
What does the IP65 rating mean for VIPIRS infrared windows?
IP65 indicates that the VIPIRS viewing pane is dust-tight (no ingress of dust) and protected against water jets from any direction (12.5 mm nozzle, 30 kPa, 3 minutes). This rating applies to the assembled pane when properly installed in an enclosure with appropriate gasketing or sealing. It allows the window to be used in environments where dust, moisture, or washdown spray is present, provided the installation maintains the seal between the pane frame and the enclosure surface.
What sizes are available in the VIPIRS viewing pane line?
The VIPIRS viewing pane line includes three nominal round sizes: the IW2000 (2-inch), the IW3000 (3-inch), and the IW4000 (4-inch). All three models share the same aluminum frame construction, crystal optic, IP65 ingress protection rating, and 2,552°F optic maximum temperature. The primary difference is the nominal diameter, which affects the field of view available for thermal imaging and the size of the opening required in the enclosure cover or door.
Can VIPIRS viewing panes be used for both infrared and visual inspection?
VIPIRS viewing panes are designed primarily for infrared (thermal) inspection. The crystal optic transmits infrared radiation, allowing thermal cameras to measure temperatures of internal components. The optic also transmits visible light, so visual inspection is possible, but the pane is not intended as a general-purpose sight glass for process fluids or high-pressure applications. It is a viewing port for electrical enclosures and similar equipment, not a pressure window.
What is the difference between the VIPIRS IW2000, IW3000, and IW4000?
The IW2000, IW3000, and IW4000 differ only in nominal diameter: 2 inches, 3 inches, and 4 inches respectively. All three use an aluminum frame, a crystal optic rated to 2,552°F, and carry an IP65 rating. Selection depends on the required field of view for the thermal camera and the available space on the enclosure. Larger windows provide a wider viewing area but require a larger cutout. 3G Electric lists specifications and part numbers for each model.
Are VIPIRS viewing panes suitable for outdoor electrical enclosures?
The IP65 rating makes VIPIRS viewing panes suitable for outdoor use when installed correctly. The aluminum frame resists corrosion in typical outdoor environments, and the sealed assembly prevents dust and water jet ingress. However, prolonged exposure to salt spray, chemicals, or extreme temperatures may require additional protection or a different frame material. For specific outdoor installation guidance, consult the manufacturer's datasheet and ensure the enclosure itself maintains its rating after the window is installed.
