Environmental chambers TC30 and TC40 page 79
Setting the desired temperature
The desired temperature is set by using the two arrow keys ( = temperature
increase;
= temperature decrease).
Pressing the key briefly changes the temperature in one-tenth of a degree
steps.
Fast adjustment is carried out by pressing the key longer.
No functions are assigned to the two keys and .
11.8.3 Setting the thermostat
With the TC40 the thermostat is used to mediate between room temperature and
target temperature.
The given temperature limits of 160°C or -30°C can only be achieved when the
Peltier element is supported by the thermostat.
As a rule of thumb the temperature difference between the measuring
temperature and the thermostat liquid should not exceed 30°C when cooling
down and 70°C when heating up. However, greater temperature differences can
be used in the temperature range between –10 and 120°C.
The following table assumes that water is used as the thermostat liquid:
Measuring temperature range Recommended thermostat setting
-30°C to 10°C 2°C
-10°C to 120°C 20°C
50°C to 160°C 85°C
SPAC S PA C S PAC SPAC
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