8.11 Preventing Sensor Overheating
The Modline 5 Sensor can be cooled with the WJA accessory presented in Section 3 Sensor
Installation, page 22. Do not use a WA-3 accessory for cooling.
Under extreme conditions, it may be necessary to provide insulation and reflective shielding for
additional protection from high ambient temperatures and radiated heat using materials available
at the installation site.
Figure 91 shows one means of providing insulation protection. In this example, a Sensor is mounted
at a sight hole cut into a furnace wall. The Sensor is protected from the atmosphere by a water cooling
accessory and is insulated from the atmosphere near the wall by aluminum-backed insulation.
A radiant heat shield can be any reflective metal shield in the path between the heat source and the
Sensor, as in Figure 92. It should be close enough to the Sensor to block random reflected radiation,
but with a space between it and the unit to allow air to circulate between them.
Figure 91: Sensor Water or Air Cooling with Added Insulation Wrap
To Next Page
Loading...
