3
Brütsch/Rüegger Werkzeuge AG, Heinrich Stutz-Strasse 20, Postfach, CH-8902 Urdorf, Tel. +41 44 736 63 63, Fax +41 44 736 63 00, www.neriox.tools, [email protected]
MAN_BR
W
_vers.
July. 1
9_art. BR
W
120263
Brütsch/Rüegger Werkzeuge AG, Heinrich Stutz-Strasse 20, Postfach, CH-8902 Urdorf, Tel. +41 44 736 63 63, Fax +41 44 736 63 00, www.neriox.tools, [email protected]
MAN_BR
W
_vers.
July. 1
9_art. BR
W
120263
Attention: Ensure that the internal micrometer is checked with the aid of the supplied ring gauge prior to use.
7
9
8
a
c
1
2
3
4
5
6
b
d
THREE-POINT INTERNAL MICROMETER
operating instructions
Legend:
1. Measurement surfaces
2. Measuring head
3. Sleeve
4. Thimble
5. Lock screw
6. Ratchet
7. Ring gauge
8. Extension
9. Spanner
Clean measurement surfaces. Insert mea-
suring head in ring gauge. Rotate ratchet
three revolutions so that the gauge slides
are firmly fitted along the entire length.
Loosen lock screw with a hex
Allen key.
Rotate the sleeve until the sleeve reference
line is consistent with the "0" scale line of the
thimble. Adjust the sleeve in axial direction
so that the scale value is consistent with the
nominal value of the ring gauge.
Use the hex Allen key to fix the lock
screw in place at the set position.
Checking of internal micrometer
Clean the internal micrometer and the ring gauge; insert the measuring head in the ring gauge and rotate the ratchet three revolutions so that the gauge slides are firmly
fitted along the entire length. Compare scale indication with the nominal dimension of the ring gauge. The internal micrometer has to be re-adjusted unless the measurement
scale is consistent with the nominal dimension of the ring gauge.
Zero position adjustment
Measurement procedure
Insert the measuring head into the hole; rotate the ratchet three revolutions so that the gauge slides are firmly fitted along the entire length. Read measured value on scale.
Reading the scale
(example)
Measured value: 15.715 mm
Measured value: 12.285 mm
Care of instrument
We recommend using a suitable product to protect the measurement surfaces and the ring gauge against corrosion after use.
Technical data
Measurement range
mm
Graduation
mm
Max. error of measurement
mm
Measurable hole depth
(without extension) mm
6…12
0.001
0.005
55
12…20
0.005
0.005
80
20…30
0.005
0.005
90
30…50
0.005
0.005
97
50…100
0.005
0.005
115
Repair
If the instrument is defective, please contact our service centre [email protected]
120263
