Techne RS232 User Manual
Page 19
D B - 2 D w i t h R S 2 3 2 O P E R A T O R ’ S M A N U A L
P A G E 17
The DOWN ARROW Button
When the SET temperature button is held down and the DOWN ARROW
button is pressed, the set temperature is decreased.
Speed of Change of Set Temperature
Each press of the UP ARROW or DOWN ARROW buttons will increase
or decrease the set temperature by 0.1°C. If the buttons are held down the
temperature change will accelerate to 5° per second
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 light 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.