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Step-by-Step Guide to Assembling Your LSP-500 Ultrasonic Processor

[fa icon="calendar"] Jan 12, 2016 12:45:00 PM / by Iva Gyurgina

LSP-500 ultrasonic system - disassembledWe are frquently asked for instructions on how to assemble and disassemble the LSP-500 laboratory-scale ultrasonic processor. In this blog post, we provide step-by-step assembly instructions that will help you get started with your LSP-500 configured in the flow-through mode. In addition, a link to a video on this topic is included at the end. In our next post, we will describe the disassembly steps for this processor.

Let's begin with the assembly.

LSP-500 installation: place mylar acoustic washer over the connecting stud and turn horn clockwise1. Inspect the Mylar acoustic washer for damage (make sure it's clean and free of scratches or particles) and place it over the connecting stud of the horn. If in doubt, replace it with a new one;

2. Thread the horn all the way into the transducer’s front mass by hand;

3. Use the provided spanner wrenches to tighten the assembly (see picture below):       
          a) Insert the pin of the first spanner wrench into a hole in the transducer’s front mass and set it up to provide counterclockwise torque.
          b) Insert the pin of the second spanner wrench into a hole in the horn’s input end and set it up to provide clockwise torque.
          c) Tighten by firmly pressing down with your palms on the wrenches, using the weight of your body. Please note, that power overload error during system operation may indicate an insufficiently tightened transducer-horn assembly;

LSP-500 horn-to-transducer assembly using spanner wrenches

5. Thread the support arm into the transducer and adjust the counter-nut by turning it clockwise by hand. Tighten using an adjustable wrench; 

LSP-500 attach the support arm to the transducer

6. Secure the ultrasonic stack in the support stand;

7. Briefly activate the ultrasonic output to check the power reading; 


  • Turn on the generator;
  • Press the AMPL button and use the up and down arrows to set the amplitude to 50%;
              LSP_500 screen at 50 percent amplitude
  • Press ENTER;
  • Press the Stop/Start button to activate the ultrasound;
  • Press the ENTER button four times to get to the power reading screen;
  • Power reading should be under 15 W;
              LSP_500 screen power reading watts
  • Press the Stop/Start button to deactivate the ultrasound;
  • Repeat the same test at 100% amplitude;
               LSP-500 screen amplitude reading at 100 percent
  • Power reading should be under 30 W;
               LSP-500 system power screen reading watts
  • If the power reading is higher, disassemble and re-assemble the horn with transducer, tightening the connection;
  • All good? Turn off the generator and let's proceed to the next step.               

To continue, we are going to place the reactor chamber on the support stand: 

LSP-500 assembly: insert the support arm in the reactor chamber8. Thread the support arm into the reactor chamber and adjust the counter-nut by turning it clockwise by hand. Tighten using an adjustable wrench;

9. Secure the reactor chamber on the support stand;

10. Lower the ultrasonic stack, bringing the tip of the horn concentrically into the reactor chamber;

11. Make sure that the support arms of the transducer and reactor chamber are well-aligned and that the assembly is straight;

12. Place the 1.5” clamp over the horn and the reactor chamber (picture below) in such way that it is not blocking the outlet of the main working liquid lines; 

13. Tighten the 1.5" clamp and adjust the position of support stand clamp holders if necessary to relieve stress in the assembly;

LSP-500 assembling the flow-cell to horn flange connection 14. Briefly activate the ultrasonic output to check the power reading;

  • Repeat the test described above, at 50 % and 100 % amplitude settings;
     LSP-500 second test: Amplitude screen reading at 50 percent LSP-500 second test: Amplitude screen reading at 100 percent
  • The power reading values should be under 20 W and 40 W, respectively.

     LSP-500 power reading screen at 50 percent amplitude LSP-500 power reading screen at 100 percent amplitude

15. Deactivate the ultrasonic output and turn off the generator;

16. Assemble the reactor chamber’s inlet and outlet hose connections using the ½" clamps;

17. If desired, connect a chiller or another cold water source to the reactor chamber’s cooling jacket for temperature control;

18. The working liquid will be pumped though the bottom fitting (the inlet) into the reactor chamber and collected through the upper right fitting (the outlet);

19. The LSP-500 system is now assembled and ready for continuous operation.

LSB-500 Ultrasonic Processor, Flow-through Mode: Assembled

We recommend that you use adequate ear protection, such as ear muffs or sound enclosure, when operating the system.  For more detailed instructions, please refer to the user's manual.

request consultation with a product specialist


To accompany these instructions, please see our video on LSP-500 Ultrasonic Processor Assembly and Disassembly procedures:

Topics: Ultrasonic Processing Systems

Iva Gyurgina

Written by Iva Gyurgina

Iva Gyurgina is the Director of Marketing and Customer Relations at ISM. She is responsible for creating and delivering ISM’s marketing materials and managing correspondence with ISM clients. Iva holds a B.S. in Finance and Management Information Systems from Seton Hall University as well as an M.B.A. in Marketing and Management from University of Connecticut. Prior to joining ISM, Iva was a Tennis Professional and has managed tennis clubs’ programs in several locations in NY. She has also worked in wealth management, technology and pharmaceuticals industries. Iva has proven experience in building customer relationships and delivering marketing strategies.