Nanodac – Carbolite nanodac User Manual
Page 8
nanodac™
MC27 –EN– 1.04
6
3.4.
O
VER
-
TEMPERATURE
C
ONTROL
Where over-temperature control is fitted, it normally protects against failure of the control system or
of a component such as a power control relay. The over-temperature controller must be set at a level
higher than the greatest element temperature, typically 15°C above maximum.
If the working temperature is less than the maximum temperature, then it may be possible to set the
over-temperature limit as follows:
Working Temperature + Cascade trim high (eg 50) +15°C
Example: for working at 800°C in a 1200°C furnace, the over-temperature limit could be set to
800+50+15=865°C.