日本三豐293-100數(shù)顯千分尺
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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.
Micrometer
The origin of Mitutoyo’s trustworthy brand of small tool instruments
High-Accuracy Digimatic Micrometer
SERIES 293
? Enabling 0.1μm resolution measurement, this
micrometer is ideal for customers who need
to make highly accurate measurements with
a hand-held tool.
? The High-Accuracy Digimatic Micrometer utilizes
Mitutoyo’s innovative 0.1μm resolution ABS
(absolute) rotary sensor*1 and high-accuracy
screw machining technology to reduce the
instrumental error to ±0.5μm, delivering
higher accuracy without sacrificing operability.
*1. Patent pending in Japan, the United States of
America, the European Union, and China.
? A highly rigid frame and high-performance
constant-force mechanism*2 enable more
stable measurement, while the clicks emitted
while the workpiece is being measured
assure the operator that measurement is
proceeding normally.
*2. Patent pending in Japan, the United States of
America, the European Union, and China.
? Body heat transferred to the instrument
is reduced by a (removable) heat shield,
minimizing the error caused by thermal
expansion of the frame when performing
handheld measurements.
? The ABS (absolute) rotary sensor also
eliminates the need to perform origin setting
each time the power is turned on, letting
you start measuring straight away. With no
possibility of overspeed errors, the High-
Accuracy Digimatic Micrometer also delivers
a higher level of reliability.
? The High-Accuracy Digimatic Micrometer
has a range of features to enable flexible
measurement, including switchable resolution
(0.0001mm/0.0005mm), function lock and
preset.
Function lock
293-100
Technical Data
Measuring force: 7 to 9N
Power supply: Lithium battery (CR2032) x 1
Battery life: Approx. two years when used under
normal conditions
Functions
Preset (ABS measurement system):
The measurement origin can be preset to any value within
the display range for convenience in measuring.
Zero-setting (INC measurement system):
The display can be zeroed at any position of the spindle,
making comparison measurement easier. Returning to the
absolute-measurement mode is easily accomplished.
Hold:
The displayed value is held while the spindle is withdrawn
and the micrometer moved so that the display can be
read at the operator's convenience. After cancelling the
hold, the instrument returns to the previous measuring
mode (absolute or incremental).
Resolution switching:
The resolution of the display can be switched. If 0.1μm
measurement is not required, the resolution can be
switched to 0.5μm.
Function lock:
Functions such as preset or zero-set can be locked to
avoid inadvertently changing the origin position.
On/off:
The power can be turned off after measurement is
complete. Even after the power is turned off, the origin or
last zero-set position remains in the memory.
Auto power off:
Even if the power is left on, the power turns off automatically
if the micrometer is not used within a 20-minute period.
Measurement data output:
Measurement data can be output, allowing easy
incorporation of this instrument into a statistical process
control or measurement system.
Error alarm:
In the unlikely event of a display overflow or calculation
error, an error message is displayed and measurement
stops. Measurement cannot continue until the error is
corrected.
Also, if the battery voltage drops below a certain point,
the battery indicator will turn on before measurement
becomes impossible, warning the user that the battery
needs to be replaced.
SPECIFICATIONS
Metric
Order No. Range Resolution Accuracy* Measuring surface Mass
293-100 0 - 25mm 0.0001mm/ 0.0005mm
(switchable) ±0.5μm ?3.2mm 400g
* Excluding quantizing error
Inch/Metric
Order No. Range Resolution Accuracy* Measuring surface Mass
293-130 0 - 1"
.000005"/.00002"
0.0001mm/0.0005mm
(switchable)
±.00002" ?3.2mm 400g
* Excluding quantizing error
日本三豐293-100數(shù)顯千分尺
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