BUCHI Ultrasonic Package - Manual (Page 35)

BÜCHI Labortechnik AG Troubleshooting | 8
Ultrasonic Controller 35/46
8 Troubleshooting
8.1 Customer service
Only authorized service personnel are allowed to perform repair work on the de­
vice which is not described in this manual. Authorization requires comprehen­
sive technical training and knowledge of possible dangers which might arise
when working on the device. Such training and knowledge can only be provided
by BUCHI.
If malfunctions of the device occur or for technical questions or application prob­
lems, contact one of our offices.
The customer service and support offers the following support:
• Spare part delivery
• Repairs
• Technical advice
Addresses of official BUCHI customer service offices are given on the BUCHI
website.
www.buchi.com
8.2 Faults
8.2.1 Nozzle does not atomize
1. Check if all electrical connections are properly installed.
2. Check the nozzle power setting on the controller.
• Make sure that a sufficient setting is used.
3. Check the peristaltic pump is working properly.
4. Check all connections of the liquid feeding line.
• Insufficient liquid supply can cause a high temperature to build up on the
nozzle.
8.2.2 No liquid delivery
1. Check the condition of the tube used in the peristaltic pump.
• Replace a worn out tube.
2. Adjust the peristaltic pump.
8.2.3 Liquid emerges unatomized
1. Check the maximum flow rate is within the rated nozzle capacity.
• 3.4 Technical data, peristaltic pump ﴾B‐290﴿ [ } page 15]
2. Check the feed viscosity and particle size of the slurry are within the speci­
fications.
• 3.2 Technical data, general [ } page 15]
3. Turn off the peristaltic pump.
4. Switch the Ultrasonic Controller on/off for 5 times to get the liquid out of
the ultrasonic nozzle, or use the damper by squeezing it.
5. Set the correct atomization power/stall point.
• 6.1 Stall point, determination [ } page 31]