Motorized micromanipulator MP-225A

In 2002, we created the MP-225 controller and motorized manipulator as a cost effective option for those who didn’t need all the features of the industry standard MP-285. While the MP-225 feature set is less comprehensive than the MP-285's, it includes the most popular features with an efficient user interface. The MP-225 was designed primarily for positioning patch and intracellular recording pipettes. We have retained and refined the features most desired for this type of work. In 2021, we’ve updated the MP-225 controller design, now called the MP-225A, by integrating the ROE and rack mounted controller box into a single unit to save you valuable space. This extended version of the popular rotary optical encoder (ROE) is the sole input device available with the MP-225A. The MP-225A mechanical continues to use a cable driven mechanical design that utilizes a miniature stepper motor and integral anti backlash gear head. Pre-loaded ball bearing slides provide smooth movement throughout the 25 mm of travel. The methodology for mounting pipette holders and headstages used with the MP-285 has been maintained in the MP-225A to allow for cross compatibility. A newly added RELATIVE mode allows the user to zero the display at any point, showing travel distance from that point onward. In addition to the fixed speeds, the MP-225A now has an option to use a logarithmic acceleration algorithm, which allows speed control proportional to the input speed.