Here's the important part: you can be assured of many useful years from this micrometer because we service what we sell. If there are ever any problems, whether during the 1-year warranty or afterwards, please return it to us. We have spare parts in stock and over 40 years of factory-trained experience.
- For repair service information, see page 30
- For spare parts, see page 72
Zero Setting the Display
- Carefully clean the exposed areas of the spindle well as the measuring faces.
- Except for the 0-25 mm (0-1") model, it will be necessary to use a gage block or micrometer setting standard.
- The micrometer and the gage block or standard must be at the same temperature. Allow them to acclimatize and stabilize for several hours if necessary.
- Close the measuring faces using the spindle's friction sleeve.
- For small deviations you can rotate the barrel slightly by using the setting key (supplied). There is a small hole near the front of the barrel for this purpose.
- For larger deviations, unscrew the end cap, loosen the lock screw using the 2 mm Allen wrench (supplied) and adjust the thimble into the proper position. Reassemble the micrometer.
- Repeat the measurements as necessary until the display reads correctly.
- End user maintenance is not recommended and, if necessary, the micrometer should be returned to a repair shop such as Long Island Indicator Service.
How to read the Tesamaster micrometer
Admittedly, it isn't easy at first. Spend some time with it and you will be able to figure it out.
The illustration, left, is for the metric model but the same principles apply for the inch models.
Here's a run down for the inch model:
A: Where the barrel reads 1, it equals .1" and so forth.
B: If the numerical display reads 10 it equals .010", (at 20 it equals .020"); this is when the line with the little black dot lines up with the zero marking. Chances are that you will be somewhat above the zero marking and then you have to check the following:
C: If you have gone beyond the line with the black dot, you increase the value by .0005" per line. Thus, if you have gone over by three lines (one long line and one short line), you will have travelled .0015" (three times .0005").
D: Finally, you use the vernier to decipher the .0001" Check to see which line on the vernier matches one of the lines on the thimble. If it is the third line, then you have travelled another .0003" (three times .0001"). If there is no perfect match between lines, then you can interpolate if you wish.
Adding it all up, your reading will be .1118"
And now, for that degree in Higher Mathematics...