lbx H20D Serie Manual Del Usuario página 11

6.1.2 Residual heat warning (HOT)
In order to prevent the risk of burns from a hotplate, the digital hotplate has a residual heat
warning function. When the heating function is switched off and the heating plate temperature is
still above 50°C, "Hot" will flash on the screen to warn that there is a risk of burns from the hotplate.
When the hotplate temperature drops to below 50°C, the system will be automatically switched off.
If users want to turn off the LCD screen immediately, just pull out the plug directly. Once the plug is
pulled out, the residual heat warning function will stop running.
6.2 H20 series
The function "heating" is switched ON or OFF by rotating the knob.
While the heating function is ON, the LED Heat is lit.
7. Stirring
H20D series: The stirring function is switched ON/OFF by rotating the stirring knob. The speed is
adjusted with the knob, too. When both the heating and the stirring functions are on, the LCD will
display the set speed value for 5 seconds and then shift to the real temperature value.
H20 and S20 series: The stirring function is switched ON/OFF by rotating stirring knob. The stirring
speed is adjusted with the "Stir" knob.
8. Remote Control (H20D series)
Figure 8
The unit can be controlled from an external PC (using the necessary software) via the RS232C serial
interface integrated in the system. Data communication between the laboratory equipment and the
computer is only possible on demand of the computer.
11