Techne 083010, Инструкция по эксплуатации

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Setting The Over-Temperature Cut-Out
An adjustable over-temperature cut-out switch is fitted. When the cut-out operates, the heater will stop working
and the ‘over-temperature cut-out indicator’ will illuminate. On the TU-20D and TU-20HT an audible alarm will
sound. The pump will continue working on all units.
The over-temperature cut-out should be set to approximately 10°C ABOVE THE OPERATING TEMPERATURE. This
can be done in one of two ways; the first is more accurate and the second quicker (and better if you do not want to
overheat the liquid). For both, first turn the cut-out switch fully clockwise then:
1. Heat the bath to the desired cut-out temperature and turn the cut-out switch anticlockwise until the cut-out
just trips.
Either: Switch off at the mains power. Remove the unit from the liquid, the heater will cool and reset (you will
hear an audible click). Return the unit to the liquid, switch on the mains power. The heater will work again.
Or: Allow the liquid to cool, may be as much as 40°C, the heater will cool and reset (you will hear an audible
click). The heater will work again.
2. Heat the bath to the required maximum operating temperature and turn the reset button anticlockwise until
the cut-out just trips. Turn the reset button clockwise one small division on the label.
Either: Switch off at the mains power. Remove the unit from the liquid, the heater will cool and reset (you will
hear an audible click). Return the unit to the liquid, switch on the mains power. The heater will work again.
Or: Allow the liquid to cool, may be as much as 40°C, the heater will cool and reset (you will
hear an audible click). The heater will work again.
An alarm will sound on the TU-20D and TU-20HT when the over-temperature cut-out is activated. Reset the
over-temperature cut-out, by removing the unit from the liquid or allow the liquid to cool, to stop the alarm.
Over-temperature
cut-out switch
52°C
125.6°F
309°C
588.2°F
209°C / 408.2°F