The use of the electronic flow integrator Lambda integrator together with the LAMBDA peristaltic pumps allows a simple but precise integration of the amount of liquid, which has been transported by the pump..
The electric impulses, which move the motor, are registered and transformed into a direct current. The voltage can be measured or recorded by common recorders or voltmeters. The RS 485 interface allows the connection to a PC.
In processes where the pump is controlled e.g. by a pH-stat during a fermentation (to keep the pH of the medium constant), it is frequently important to know when and how much acid or base were added. This data yields important information about the process, its kinetics and time of completion..
The Integrator can also be used for measuring enzyme activity (e.g. esterases, amidases, acylases, lipases, proteases, lactamases and other enzymes).
The pump-flow integrator can be conveniently placed under the peristaltic pump. The Integrator connected to LAMBDA peristaltic pumps allows new and unusual applications of peristaltic pumps (gradient making, counter flow elution, liquid chromatography, electronic burette, etc.) as shown in the following figure: