lbx H03D Serie Manual De Usuario página 10

Please, in that case, follow the instructions below:
•
Switch OFF the instrument.
•
Ensure the external temperature sensor is inserted in the media heated.
•
Switch ON the instrument and run heating function.
If the heating function does not work, please contact manufacturer/supplier for technical support.
Once turned on, the instrument automatically displays the last running speed and temperature parameters.
Generally, the LED screen cannot display the actual temperature of sample in the vessel or hotplate surface. Temperature
differences exist between:
•
Hotplate center and outer edge.
•
The sample in the vessel and hotplate surface.
In order to ensure the accuracy of the temperature inside the container, please use the external temperature sensor
PT1000.
6.1 Working with external temperature sensor
The external temperature sensor PT1000 is the manufacture's standard accessory. Compared to the temperature control of
the hotplate, the external temperature sensor can control the medium's temperature more precisely.
•
If an external temperature sensor is needed, it must be plugged in before turning on the device (fig. 6).
•
Ensure the external temperature sensor is connected firmly and inserted into the media before heating.
•
Switch on the instrument and start heating.
•
The LED screen displays the temperature setting value for 5 seconds and then shifts to the real value.
6.2 Residual heat warning (HOT)
In order to prevent burns from the 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 LED screen to warn
that there is a hazard of burns from the hotplate. When the unit is powered off, the LED screen alternates the temperature
of the hotplate and "Hot". When the hotplate temperature drops to below 50°C, the unit will automatically switch off. If
users want to turn off the LED immediately, just pull out the plug directly. When the plug is pulled out, the residual heat
warning function stops running.
7. Function: Stirring
The function "stirring" of LED digital model (H03D and S03D):
•
Turn on the device by pressing the switch ON/OFF.
•
Start the function "stirring" by pressing the "STIR" knob and adjust the speed slowly until the set value.
•
When starting the function "stirring", the display shows set value and then blinks. This blinking will stop only when the
actual speed reaches the set value.
Figure 9
Warning!
Forbidden to plug in/pull out external
temperature sensor in heating.
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