Trial Run - Lbx Instruments H20D+ Mode D'emploi

5. Trial Run

• Make sure the required operating voltage and the power supply voltage match.
• Ensure that the socket is properly grounded.
• Plug in the power cable to the system, then to the outlet. Make sure the power is on and begin the initiation.
• Add the medium into the vessel with a magnetic stirring bar; make sure the magnetic stirring bar has an appropriate size.
• Place the vessel on the work plate.
• Set the target stirring speed and start stirring.
• Observe the stirring bar (all series).
• Set the target temperature and start heating.
• Observe the LCD display (H20D+ series).
• Stop the heating and stirring functions.
If the operations above cause no abnormalities, the device is ready to operate. Otherwise, the device may have been damaged
during transportation, please contact the manufacturer/supplier for technical support.
6. Function: Heating (H20D+ series)
6.1 H20D+ series
The device is controlled by a digital temperature control technology, which has two separate safe circuits. The hotplate is
kept at a constant temperature by a digital control circuit. The hotplate temperature can also be monitored from a
separate, adjustable safe circuit. The two internal temperature sensors (PT1000) for temperature control are built into the
hotplate. The single external PT1000 can monitor the temperature of the sample.
•
If using an external sensor PT1000: Always connect to the device BEFORE turning the power on and insert it into the
sample BEFORE heating (see section 6.1.1).
•
Turn the equipment on by pressing the ON/OFF switch.
•
Set the temperature by rotating the temperature control knob slowly towards the target value.
•
While the heating function is on, the LED "Heat" lights up and the LCD screen displays the real temperature.
•
The temperature is displayed on the right side of the LCD screen as well as the "Temp" and "°C" characters.
•
The heating function is switched on or off by pushing the heating knob.
The heating function will stop automatically under abnormal conditions.
In that case, please follow the instructions below:
•
Switch OFF the instrument.
•
If using external temperature sensors, ensure they are connected and inserted into the media to be heated.
•
Switch ON the instrument and run the heating function.
If the heating function did not work, please contact the manufacturer/supplier for technical support.
When the equipment is switched ON, it displays the speed and temperature parameters used on the last use.
Generally, the LCD screen cannot show the real temperature of the medium in the vessel or on the plate. Temperature
differences exist in the following cases:
•
Hotplate center and outer edge.
•
The sample container and the container.
In order to ensure that the temperature inside the container is measured accurately, please use the external temperature
sensor PT1000.
Warning!
Transfer of the vessel when the instrument
is working is forbidden.
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