ALPA_MICROMETER_EXACTO
ZERO SETTING PROCEDURE FOR EXTERNAL MICROMETER
If The zero setting error is more
than ±0.01 mm:
• Loosen the ratchet cap, using
the Spanner
• Press the thimble outward so
that it can freely move, then align
the thimble zero line with the
sleeve index line
• Lock the ratchet cap, using the
Spanner at the original position to
secure
10
5
0
45
40
Ratchet Cap