Diffraction Limited MD1 Benutzerhandbuch

MaxDome 

10 

 
The next picture shows how the sensor board is positioned. You want the head 
of the sensor to be approximately 3/8” from the shaft. The sensor has to be at the 
correct distance or it will not reliably detect shaft rotation. Once you have 
determined the correct spacing, drill two holes in the plate for the mounting 
screws.  
 

 

Sensor Position 

 
The sensor board is mounted upside-down; that is, with the connector and 
sensor underneath the board, facing the motor.  This is necessary to position the 
sensor at the correct height. Fasten it in place with two 4-40 screw, as shown 
below.  Be careful not to scratch the coating on the circuit board, lest the wiring 
be shorted out.  
 
Once the holes are drilled, mount the sensor using the supplied screws, washers, 
and nuts as shown below. Please note that there should be a washer under the 
sensor. Also avoid scratching the coating on the circuit board; it protects the 
tracks from short circuits.