Soft Touch Micro0 pages

Micrometer

The origin of Mitutoyo’s trustworthy brand of small tool instruments

ABSOLUTE Digimatic Micrometers
SERIES 227 — with Adjustable Measuring Force

B

• Digimatic micrometer dedicated to
applications requiring a constant/low
measuring force such as measuring wire,
paper, and plastic/rubber parts.
• Ratchet mechanism in the thimble applies
constant force to workpiece.
• Compact and easy to handle.
• Measuring force is adjustable (in steps) to
suit various kinds of workpiece.

• High-accuracy measurement can be
performed even by unskilled operators due to
the repeatability of the automatically applied
measuring force.
• Non-rotating spindle.
• Measuring faces: Carbide

Absolute Encoder

Technical Data

Flatness:t 0.3μm/.000012”
Parallelism: 2μm/.00008”
Measurement posture: horizontal orientation only
(Recommended spindle inclination: within ±3°)
SR44 (1 pc), 938882, for initial operational checks
(standard accessory)
Battery life:tApprox. 3 years under normal use
t
(1 year for No.227-201, 206, 207, 213, 216, 217)

Functions

Adjustable measuring force mechanism
Hold
Origin point setting
ABS measurement system
Low voltage alarm
Data output
Presetting (No.227-203, 206, 207, 213, 216, 217)

Optional accessories

227-201

SPECIFICATIONS
Metric
Order No.
Range
227-201
0 - 15mm
227-203
15 - 30mm
227-205
0 - 10mm
227-206
10 - 20mm
227-207
20 - 30mm
* Excluding quantizing error

Resolution

Accuracy*

0.001mm

Measuring force

±2µm

0.5N - 2.5N
2N - 10N

Connecting cables
t 1m: 937387
t 2m: 965013
USB Input Tool Direct
t USB-ITN-E (2m): 06ADV380E
Connecting cables for U-WAVE-T
t 02AZD790E 160mm
t For foot switch: 02AZE140E
t Refer to page A-21 for details.

Accuracy of the selected measuring force*1 Repeatability of measuring force*1 Mass
300g
within 0.1 N
0.5, 1.0, 1.5, 2.0, 2.5 N ± (0.1+ the selected measuring force/10) N
380g
340g
within 0.4 N
2, 4, 6, 8, 10 N
± (0.4+ the selected measuring force/10) N
425g
415g
Measuring force

Inch/Metric
Resolution
Measuring force
Order No.
Range
Accuracy*
Measuring force
Accuracy of the selected measuring force*1 Repeatability of measuring force*1
227-211
0 - .6"
within 0.1 N
0.5N - 2.5N
0.5, 1.0, 1.5, 2.0, 2.5 N ± (0.1+ the selected measuring force/10) N
227-213
.6"- 1.2"
227-215
0 - .4"
.00005"/ 0.001mm ±.0001"
within 0.4 N
2N - 10N
2, 4, 6, 8, 10 N
± (0.4+ the selected measuring force/10) N
227-216
.4"- .8"
227-217
.8"- 1.2"
* Excluding quantizing error
* 1: These values are guaranteed used in a horizontal orientation (within ±3 degrees)

Mass
300g
380g
340g
425g
415g

Constant-measuring-force mechanism

Measuring force is generated by the action of trapping a workpiece between the spindle face
and the anvil.
The constant-force unit applies the specified measuring force.
When the preset measuring force is reached, the count on the LCD is automatically held and
the hold symbol appears.
(To cancel the hold, reverse the thimble more than 1/10 revolution and press the hold button.)

B-11

Mitutoyo operates a policy of continuous improvement that aims to provide the customer with the benefit of the latest technological advances.
Therefore the company reserves the right to change any or all aspects of any product specification without notice.