Mitutoyo Corporation 20-1, Sakado 1-Chome, Takatsu-ku, Kawasaki-shi, Kanagawa 213-8533, Japan
Date of publication: December 1, 2021
Printed in Japan
1. Names of Components
■ 293 Series
MDC-MB
① ② ③ ④ ⑤ ⑥ ⑦
⑧
⑨
■ 340 Series
OMC-MB
⑩
② ③
④
⑤
⑥ ⑦ ⑧
⑨
⑪
⑪
■ 389 Series
PMU-MB
S/N 00000000
BATTERY SR44×2
0.001mm
0-25
No.389-514
MADE IN JAPAN
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑫
① Anvil
② Spindle
③ Swivel clamp
(locks the spindle to prevent motion)
④ Display unit (LCD)
⑤ Battery compartment cover
⑥ Sleeve
⑦ Thimble
⑧ Ratchet stop
⑨ Data output connector
⑩ Tightening screw
⑪ Interchangeable anvil
⑫ Stand
■ Display Unit (LCD)
⑲
⑬
⑭⑯ ⑮
⑰
⑱
⑳
⑬ [ZERO/ABS] key
⑭ [HOLD] key
⑮ [in/mm] key (in/mm product only)
⑯ [PRESET] key
⑰ Sign display
⑱ Function Lock display
⑲ Hold display
⑳ Low voltage display
㉑ INC display
㉒ Preset display
㉓ Unit display
Safety Precautions
To ensure operator safety, use this product according to the directions, functions and specications given in
this User's Manual.
Use under other conditions may compromise safety.
• Always keep batteries out of reach of children, and if swallowed, consult a physician immediately.
•
Batteries should never be short-circuited, disassembled, deformed or come in contact with extreme heat or ames.
• If battery alkaline liquid comes in contact with the eyes, ush eyes immediately with clean water and consult
a physician. If battery alkaline liquid comes in contact with the skin, ush the exposed area thoroughly with
clean water.
• Never attempt to charge the primary battery or reverse the positive-negative terminals when mounting.
Improper battery handling or mounting may cause the battery to explode, cause battery leakage, serious
bodily injury, or malfunction.
• Always handle the sharp measuring faces of this product with care to avoid injury.
• Do not disassemble or modify.
• Do not use or store the product in a place with sudden temperature changes. Also, before using the product,
allow it to acclimate to room temperature.
• Do not store the product in a place with high humidity or a lot of dust. Do not use the product in an environ
-
ment where it may contact water or oil.
• Do not apply excessive force or subject the product to sudden impacts such as dropping.
• Remove dust, cutting chips, etc. before and after use.
• When cleaning, wipe this product with a soft cloth moistened with diluted neutral detergent. Do not use an
organic solvent such as thinner, which may cause the product to deform or malfunction.
• The spindle is structured so that it cannot be pulled out. Do not forcibly retract it in excess of the measuring range.
• Dirt on the spindle may lead to malfunction. If the spindle becomes dirty, wipe it clean with a cloth containing a
small amount of alcohol and apply a small amount of micrometer oil (Part No. 207000).
• If Micrometer Oil is not available and you must use a commercially available product, we recommend using
an anti-rust agent with low viscosity almost equivalent to ISO VG10.
• Do not write numbers, etc. with an electric pen.
• If the product is to be out of use for three months or more, remove the batteries before storage. Liquid leakage
from the battery may damage the product.
Digimatic Micrometer
User's Manual No. 99MAB034A1
1
Contents
1. Names of Components ............................................................................................................................Page 1
2. Installing the Battery ................................................................................................................................. Page 2
3. Precautions for Use ..................................................................................................................................Page 2
4. Interchangeable Anvil Replacement Method (340 Series Only) ............................................................... Page 2
5. PRESET Value (Reference Point) Setting ................................................................................................Page 2
6. Measurement Method ..............................................................................................................................Page 3
7. Display Unit Angle Adjustment .................................................................................................................Page 3
8. Key Functions ..........................................................................................................................................Page 3
9. Function Lock Function (Preventing Accidental Operation) .....................................................................Page 3
10. Errors and Troubleshooting ......................................................................................................................Page 3
11. Specications ...........................................................................................................................................Page 4
12. Output Function ........................................................................................................................................ Page 4
13. Optional Accessories ................................................................................................................................ Page 4
14. Off-Site Repairs (Subject to Charge)........................................................................................................Page 4
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