Application Guide

8
Stirring
Stirring is switched on / off by pressing the speed setting knob.
The speed is set by rotating the knob in the range of 50-1500rpm.
Faults
• The device can’t work when powered on
- Check if the power line is connected properly
- Check if the fuse is broken or loose
• Fault in power on self test
- Power off the device and then restart
• Actual speed can’t reach the set value
- Media in high viscosity may probably cause abnormal speed
reduction of the motor
• The device can’t be powered off when switched off
- Check if the residual heat warning function is still on and the
hot plate temperature is above 50°C (the setting indicator is lit)
Fault
D1 light
D3 flash
D2 light
D3 flash
D1/D2 light
D3 flash
Fault description
External temperature
sensor PT100 failure
Internal temperature sensor
PT100 failure
Motor failure
Solutions
Replace PT100 and
restart the device
Restart the device
Reduce the sample
D1 for “Heating” indicator light, D2 for “External temperature sensor
indicator light ; D3 for “Power on” indicator light.
If the instrument still can't work properly, please contact
manufacturer / supplier for technical support.
Maintenance
Proper maintenance can make the device work well and extend
its life.