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Non-Rotating Spindle Digital Micrometer

Series 3631

MN-3631-E 

V0

Copyright     INSIZE CO., LTD. All Rights Reserved

                                     www.insize.com

Copyright     INSIZE CO., LTD. All Rights Reserved

                                     www.insize.com

OPERATION INSTRUCTION

Remove rust oil before use

Resolution: 0.001mm/0.00005"
Repeatability: 1

ȝ

m

Accuracy: 

“ȝ

Range: 0-50mm

“

3

ȝ

Range: 50-150mm

1-Fixed anvil
2-Carbide measuring faces
3-Spindle
4-Lock device
5-LCD display
6-Battery cover, data output

7-Ratchet stop
8-Frame
9-''REF mm/inch'' button 
10-''ON/OFF 0 HOLD'' button
11-Setting standard 

except 0-25mm

1

8

9

10

11

3

2

4

5

6

7

1. Non-rotating spindle is suitable for cylindrical workpiece. Rotate ratchet stop on circle, 
    spindle moves 1mm, quick measurement.

2. Install battery: 
    

Install and remove battery, the positive side of battery 

    should face out

fig.1

.

CR2032

+

Install

Remove

CR2032

A is for ''REF mm/inch'', B is for ''ON/OFF 0 HOLD''

Press any button to power on
Short press ''A'' to change inch and mm. Short press ''B'' to set zero or initial reading. Long 
press into standby mode, and then power off after 5s 
Press any button or rotate ratchet stop to power on when micrometer is in standby mode
Long press ''A'' for ''REF'', ''PRESET'', ''MIN MAX'' and ''TOL'' mode conversion, release 
the button when the screen displays the chosen mode.
I: ''REF'' mode: set two preset value: ''REF I''

ǃ

''REF II'' 

short press ''A'': preset data 

conversion

, short press ''B'' and screen displays ''HOLD'', and short press again to exit 

hold mode, long press ''A'' to exit

II: ''PRESET'' mode: set preset value

for an example: 25-50mm, the micrometer

s preset 

value should be set 25mm, use setting standard to calibrate micrometer

. Short press 

''A'' to position digit, short press ''B'' to change the digit from 0 to 9, long press ''A'' to 
finish setting and exit

III: ''MIN MAX'' mode: short press ''A'' for ''MIN''

minimum value

, ''MAX''

maximum value

 

and ''MIN MAX''

maximum range

 conversion. Short press ''B'' to re-record data and 

long press ''A'' to exit

IV: ''TOL'' mode: set tolerance. Short press ''A'' to set upper tolerance: short press ''A'' to 

position digit, short press ''B'' to change the digit from 0 to 9, long press ''A'' to finish 
upper tolerance set and enter into lower tolerance set, finish the lower tolerance and 
long press to exit  

Press ''A'' and ''B'' same time to change resolution 

0.01mm, 0.001mm, -0.01mm, 

-0.001mm

.

3. Button:

5. During measurement, let fixed anvil contact with the workpiece first, then rotate ratchet 

thimble or ratchet stop until spindle is close to, but not in contact with the piece, and then 
rotate ratchet stop until click, get the reading.   
Caution: When the measuring faces is close to, but not in contact with the piece, do not 

apply excessive force to rotate the ratchet thimble, as it will lead to inaccurate 
results and may damage the internal precision threads. 

4. Please clean the measuring faces and setting standard faces, calibrate micrometer. For 

0-25mm, do calibration in zero. For other sizes, set the initial reading as the value of 
setting standard. Micrometer measures the setting standard, set the initial reading as the 
value of the setting standard.

6. Automatic enter into sleep mode in about 20 minutes. Press any button or rotate ratchet 

thimble to turn on micrometer.

7. One battery can last for one year use. If there is nothing or ''B'' on screen, battery voltage 

is too low, please replace battery. If digits do not change when buttons are pressed or 
ratchet stop is rotated, take out battery and put it back after 1 minute. Remove battery if 
micrometer is not be used for a long period of time, otherwise, liquid may leak from the 
battery and damage the micrometer.

8. Working temperature is 0-40

O

C/32-104

O

F, relative humidity should not exceed 80%.

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