General Specifications:
The document provides specifications for the MB10-25B and MB10-30B models, which are types of potentiometers. Key dimensions include diameters and radii for mounting holes and fixing screws. The operating temperature range is specified as -30°C to +60°C. The document also mentions the mass of the devices and the availability of special colors for housing and spin plates.

Mounting Instructions:
The document outlines the procedure for mounting MB Series counting dials on Helicalohm potentiometers. It includes details on using a mounting adaptor and securing the shaft with a screw. The importance of adjusting the gap between the 2-finger projections of the mounting adaptor is emphasized to prevent irregular turns of the dial.

Additional Notes:
There are specific instructions regarding the use of nuts depending on the type of potentiometer and panel thickness. The document also highlights that the inner diameters of the mounting adapter differ from the potentiometer shaft diameters, necessitating the use of the supplied adaptor.

Contact Information:
Contact details for Althen, the provider of the potentiometers, are included for various regions including Germany, Austria, Switzerland, Benelux, France, Sweden, USA, Canada, and other countries.