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3.2 Error messages
The unit is fitted with safety devices which cut-off the power supply to the heating plate in the case of malfunctions.
Display
Flashing Stirrer LED (once every second)
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.
5. Technical data
Power supply
Dimensions WxHxD
Weight
Power input
Heat output
Diameter of the heating plate
Programmable temperature range
Type of temperature control
Overtemperature protection
Motor rating output
Stirring capacity
Programmable speed range
Counter-reaction
Type of motor control
Temperature range
Storage temperature range
Max humidity
Pollution degree CEI EN61010-1
Overvoltage category
Noise level
Max altitude
Cause
Fault in the stirring system
Overheated heating plate or thermocouple open
Fault in the temperature reading circuit
Thermocouple wires reversed or white wire of
potentiometer board not connected
230V / 50-60Hz (+/-10%)
715x115x246 (28.1x4.5x9.7)
8.6 Kg (AM4) ; 9.0 Kg (AM4X)
630W x 4 (2520W)
600W x 4 (2400W)
135mm x 4
50 – 370 °C
Analog
Yes
10W x 4
20 liters of H
O x 4
2
100 – 1500 rpm
Constant speed even when the viscosity changes
Electronic speed control
+5...+40 °C
-10...+60 °C
80%
2
II
<< 80 dBa
4000 m
6
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