mitutoyo 501s 用户手册

 

(3) Precautions for transparent object measurement 

To measure a larger diameter transparent glass rod, the external diameter of a 

plastic object, or the width of a transparent sheet, arrange the measuring units with 
the support bases fitted so the scanning laser beams are opposing one another, and 
set the segment    to (1 + 5). If the laser scanning direction of each unit is reversed to 
the direction shown below, measurement will be disabled. 

 
 

 
 

 

Scanning 

direction

 

Reception unit

 

Emission unit 

 

Measuring 

unit 2

 

 

１

５

 
 

Set the measuring units 
with the support bases 
facing one another.

 

 
 
 

Measuring 

unit 1

 

 
 
 
 

Scanning 

direction

 

 

 
If two measuring units are set up with the support bases 

facing one another, a step L will be produced between the 
two units through inconformity of the optical axis of the two 
units, as shown at the right. The step values according to 
model are listed below. 

 

L 

Measuring unit 
2 side

 

Optical axis

 

Side view 

 

 

Model Step 

L 

LSM-501S 10mm 
LSM-503S 10mm 
LSM-506S 10mm 
LSM-512S 22mm 

Measuring unit 
1 side

 

LSM-516S 33mm