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1. Introduction
The heating plate type RC is designed for general use, for all those applications that require the heating of samples in
specific containers positioned on the heating plate of the instrument.
The temperature of the heating plate is controlled by an analogical bulb thermoregulator fitted directly into the heating plate.
This makes it possible to obtain a constant control of the heating plate temperature from 50 to 370 °C.
NOTE: The container of the product used must be compatible with the temperature used. Normally, in these cases, Pyrex
glass containers are used. The use of the heating plate with high temperatures may cause variations of the superficial colour
but this doesn't change the characteristics of thermal, mechanical and chemical resistance.
2. Assembly and installation
Check the integrity of the unit after unpacking. The box includes:
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RC Heating Plate
2.1 Electrical connections
After having unpacked the instrument, place the unit on the laboratory bench.
Before connecting the instrument to the power supply, make sure that the values on the rating plate correspond to those of
the power supply. Connect the unit to the power supply using the transformer supplied.
Ensure that the socket and the relative cut-off device conform to current safety norms and are easy to reach.
2.2 Start-up
Rotate the temperature knob completely to the left. Then, set the temperature by turning the dedicated knob.
3. Operating controls
TEMPERATURE KNOB
ON-OFF SWITCH
3.1 Error message
The unit is fitted with safety devices which cut-off the power supply to the heating plate in the case of malfunctions.
Display
Flashing Heating LED (once every second)
Flashing Heating LED (2 times every second)
Flashing Heating LED (once every 3 seconds)
Should any of the above occur, please contact your nearest VELP Scientifica service centre.
4. Maintenance
No routine or extraordinary maintenance is necessary apart from periodically cleaning the unit as described in this manual.
In compliance with the product guarantee law, replace the fuses and repairs to our units must be carried out in our factory,
unless previously agreed otherwise with local distributors and using Velp spare part only.
The instrument must be transported in its original packaging and any indications present on the original packaging must be
followed (e.g. palletized).
It is the responsibility of the user, to properly decontaminate the unit in case of hazardous substances remaining on the
surface or interior of the device. If in doubt about the compatibility of a cleaning or decontamination product, contact the
manufacturer or distributor.
4.1 Cleaning
Disconnect the unit from the power supply and use a cloth dampened with an non-inflammable non-aggressive detergent.
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Power supply cord
To select the temperature of the heating plate turn the corresponding knob (Heating).
The temperature can be programmed between 50 and 370 °C.
The on-off switch turns the unit on and off. If the switch is in the "OFF" position the
unit is off; if the switch is in the "ON" position the unit is on.
Always turn the unit off after use.
5
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Instruction manual
Cause
Overheated heating plate or thermocouple open
Fault in the temperature reading circuit
Thermocouple wires reversed or white wire of
potentiometer board not connected
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