Techne DB-2TC - Manual (Page 27)

Power Indicator
The top indicator shows that there is power to the unit.
Heater Indicator
The next indicator shows when the heater is heating the unit. When the temperature is being set, and
the new set temperature is higher than the temperature already in the unit, the heater indicator will be
lit up as the unit tries to follow the set temperature. If the light is on continuously the heater is getting
constant power. The only exception is described under over-temperature indicator. As the temperature
approaches the set temperature the heater indicator will flash. When set temperature is reached the
indicator will stay on for shorter periods. If the Dri-Block
® is above the set temperature then the indicator
will be off, as the heater is not getting any power.
Over-Temperature
Indicator
If the unit should, for any reason, exceed the temperature set for the over-temperature cutout (see page
22), the over-temperature indicator will be lit. The heater will have been switched off and the unit will
begin to cool even if the heater light is on (the light staying on or not depends on which circuit has
sensed an over-temperature).
25
20.0
set
75.3
set
99.0
set