We have two sites that have an RB450G in an outdoor cabinet that has a thermostat that kicks in fans at or above 50°C.
What we are finding is that one of the RB450G’s is reporting a rather high temperature — today over 65°C, and during the week up to 72°C, despite having felt the case to be cool to the touch on the same days I looked at those figures. Using an infrared temperature probe, the ventilation holes on the RB450G case are no hotter than about 35°C.
Indeed in where another RB450G has a similar feel to the touch, it is reporting just over 40°C. Obviously as these “room temperature” figures are not above 50°C, the fans aren’t kicking in.
How accurate would you suggest the temperature monitor is on the RB450G?
The only reason why we have gone for the RB450G over any other switching hardware is due to the built-in temperature monitoring, which is rather critical to keep an eye on. If it’s inaccurate, then that is quite risky.