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Mitutoyo-SERIES 293 — with Dust/Water Protection Conforming to IP65 Level -Coolant Proof Micrometers

Coolant Proof Micrometers

SPECIFICATIONS
Metric

  Order No Range Resolution Accuracy* Parallelism Constant-force device Mass

 

 

 

 

 

 

with SPC

data output

293-230-30 0 –   25mm

 

 

 

 

 

 

0.001mm

 

±1µm

1µm

 

 

 

 

 

With ratchet stop

270g
293-231-30 25 –   50mm 330g
293-232-30 50 –   75mm 2µm 470g
293-233-30 75 – 100mm

 

±2µm

625g
293-250-30 100 – 125mm

 

3µm

600g
293-251-30 125 – 150mm 740g
293-252-30 150 – 175mm

 

±3µm

800g
293-253-30 175 – 200mm

 

4µm

970g
293-254-30 200 – 225mm 1100g
293-255-30 225 – 250mm

 

±4µm

1270g
293-256-30 250 – 275mm 1370g
293-257-30 275 – 300mm 5µm 1590g
293-234-30 0 –   25mm

 

±1µm

1µm

 

With ratchet thimble

280g
293-235-30 25 –   50mm 340g
293-236-30 50 –   75mm 2µm 480g
293-237-30 75 – 100mm ±2µm 635g

 

 

 

without  SPC

data output

293-240-30 0 –   25mm

 

 

 

0.001mm

 

±1µm

1µm

 

With ratchet stop

270g
293-241-30 25 –   50mm 330g
293-242-30 50 –   75mm 2µm 470g
293-243-30 75 – 100mm ±2µm 625g
293-244-30 0 –   25mm

 

±1µm

1µm

 

With ratchet thimble

280g
293-245-30 25 –   50mm 340g
293-246-30 50 –   75mm 2µm 480g
293-247-30 75 – 100mm ±2µm 635g

* Excluding quantizing error
• All-Digit preset type: models over 125mm (5”) measuring range

Inch/Metric

  Order No Range Resolution Accuracy* Parallelism Constant-force device Mass

 

 

 

 

 

 

with SPC

data output

293-330-30 0  – 1″

 

.00005″

/0.001mm

 

±.00005″

.00004″

 

 

 

 

 

With ratchet stop

270g
293-331-30 1″ – 2″ 330g
293-332-30 2″ – 3″ .00008″ 470g
293-333-30 3″ – 4″

 

±.0001″

625g
293-350-30 4″ – 5″

 

 

.0001″

/0.001mm

 

.00012″

600g
293-351-30 5″ – 6″ 740g
293-352-30 6″ – 7″

 

±.00015″

800g
293-353-30 7″ – 8″

 

.00016″

970g
293-354-30 8″ – 9″ 1100g
293-355-30 9″ -10″

 

±.0002″

1270g
293-356-30 10″ – 11″ 1370g
293-357-30 11″ – 12″ .0002″ 1590g
293-334-30 0  – 1″

.00005″

/0.001mm

 

±.00005″

 

.00004″

With ratchet thimble 280g
293-335-30 With friction thimble 275g
293-336-30 1″ – 2″ 335g

 

 

 

without  SPC

data output

293-340-30 0  – 1″

 

 

 

.00005″

/0.001mm

 

±.00005″

.00004″

 

With ratchet stop

270g
293-341-30 1″ – 2″ 330g
293-342-30 2″ – 3″ .00008″ 470g
293-343-30 3″ – 4″ ±.0001″ 625g
293-344-30 0  – 1″

 

±.00005″

.00004″

 

With ratchet thimble

280g
293-345-30 1″ – 2″ 340g
293-346-30 2″ – 3″ .00008″ 480g
293-347-30 3″ – 4″ ±.0001″ 635g
293-348-30 0  – 1″ ±.00005″ .00004″ With friction thimble 275g

* Excluding quantizing error
• All-Digit preset type: models over 125mm (5”) measuring range
18

DIMENSIONS

Range Order No. L a b c
0-25mm 293-230-30/293-240-30 0 6.5 25

 

 

2.5

25-50mm 293-231-30/293-241-30 25 7.3 32.5
50-75mm 293-232-30/293-242-30 50 10.1 47
75-100mm 293-233-30/293-243-30 75 11.5 60
0-25mm 293-234-30/293-244-30 0 6.5 25
25-50mm 293-235-30/293-245-30 25 7.3 32.5
100-125mm 293-250-30 100 16.7 76 5.3
125-150mm 293-251-30 125 18.8 90 5.7
150-175mm 293-252-30 150 19.1 103 6.1
175-200mm 293-253-30 175 18.2 115 6.3
200-225mm 293-254-30 200 16.8 126 6.7
225-250mm 293-255-30 225

 

18

139 5.5
250-275mm 293-256-30 250 152 6.5
275-300mm 293-257-30 275 166

 

IP Codes
Level 6: Dust-proof.
No ingress of dust allowed.
Level 5:

Protected against water jets.
Water projected in jets against the enclosure from any direction shall have no harmful effects.
Technical Data
Flatness: 0.3μm/.000012”
Dust/water protection level: IP65 (IEC60529) *
Measuring force: 5 to 10N (ratchet thimble type is 7 to 12N.)*
Battery: SR44 (1 pc), 938882,
for initial operational checks (standard accessory)
Battery life: Approx. 2.4 years under normal use
Length standard: Electromagnetic rotary sensor
Standard accessories: Reference bar, 1 pc (except for 0-25mm (0-1”) models)
Spanner (301336), 1 pc *2 Rustproofing shall be applied after use.
*3 Refer to page B-6 for details.
Optional accessories
(Only for models with data output function)
Connecting cables with output switch
1m: 05CZA662
2m: 05CZA663
USB Input Tool Direct
USB-ITN-B (2m): 06ADV380B
Connecting cables for U-WAVE-T (160mm)
02AZD790B
For foot switch: 02AZE140B
Refer to page B-68 for details.
These are dedicated connecting cables for Coolant Proof micrometers.

Functions
Origin point setting (ABS measurement system): Resets the ABS origin at the current spindle position to the minimum value of the measuring range and switches to ABS mode.
Zero-setting (INC measurement system): A brief press on the ZERO/ABS button sets display to zero at the current spindle position and switches to the incremental (INC) measuring mode. A longer press resets to the ABS measuring mode.
Hold: Pressing the HOLD button freezes the current value in the display. This function is useful for preserving a
measurement in situations of poor visibility where the instrument must be moved away from the workpiece before the reading can be recorded.
Data output*4 : Models equipped with this function have an output port for transferring measurement data to a Statistical Process Control (SPC) system.
*4: Only models with the data output function
Auto power ON/OFF: The reading on the LCD disappears after this instrument is idle for about 20 minutes, but the reading and measurement mode are retained. Turning the spindle causes the reading to reappear.
Error alarm: In case of an overflow on the LCD or a computing error, an error message appears on the LCD, and the measuring function stops. This prevents an instrument from giving an erroneous reading. Also, when the battery voltage drops to a certain level, the low-battery-voltage alarm annunciator appears well before the micrometer becomes unusable.
Function lock :
This function allows the ORIGIN (origin point setting) function and the ZERO (zero-setting ) function to be locked to prevent these points being reset accidentally.

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