Mitutoyo 99MAB034A1 User manual

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
⑩② ③ ④⑤⑥ 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
①Anvil
②Spindle
③Swivel clamp
(locks the spindle to prevent motion)
④Display unit (LCD)
⑤Battery compartment cover
⑥Sleeve
⑦Thimble
⑧Ratchet stop
⑨Data output connector
⑩Tightening screw
⑪Interchangeable anvil
⑫Stand
■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
⑰Sign display
⑱Function Lock display
⑲Hold display
⑳Low voltage display
㉑INC display
㉒Preset display
㉓Unit display
Safety Precautions
To ensure operator safety, use this product according to the directions, functions and specications 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. Specications...........................................................................................................................................Page 4
12. Output Function........................................................................................................................................Page 4
13. Optional Accessories................................................................................................................................Page 4
14. Off-Site Repairs (Subject to Charge)........................................................................................................Page 4
Key operation icon
=
> 2 s
=
< 1 s
en

Mitutoyo Corporation 20-1, Sakado 1-Chome, Takatsu-ku, Kawasaki-shi, Kanagawa 213-8533, Japan Date of publication: December 1, 2021
Printed in Japan
2. Installing the Battery
Tips
• Be sure to use SR44 (button type silver-oxide battery Part No. 938882) for the battery.
• Do not rotate the thimble until the count is displayed. Initial setting of the control unit may fail and the product may
not count normally. If you mistakenly move the thimble, reinstall the batteries.
• The batteries supplied are for conrming the functions and performance of the product. Note that these batteries
may not fulll the predetermined life.
• Malfunction or damage due to depleted batteries, etc. is not covered by the warranty.
• Follow local rules and regulations regarding battery disposal.
The batteries are not installed into the product at purchase. Install the batteries as follows.
1 Use the supplied Phillips screwdriver (No.05CAA952) to loosen the battery compartment cover xing screw
(No.04GAB130), and then remove the battery compartment cover.
2If replacing the existing batteries, remove the old batteries.
3Install the batteries (SR44) with the positive side facing up.
4 Place the battery compartment cover over the battery compartment and hold down the edge with your ngers while
making sure there is no gap between the cover and body, and then tighten it using the screw.
》The "------" display blinks.
5Press the [PRESET] key.
》Count display appears and counting starts.
1 3
4
5PRESET
SR44 x 2
Tips
• Reinstalling the batteries will erase the PRESET value (reference point). Perform reference point setting again (see
"5. PRESET Value (Reference Point) Setting".
• If an abnormal display that indicates an error or counting failure, etc., is shown, try removing the batteries and
reinstalling.
Key operation icon
=
> 2 s
=
< 1 s
3. Precautions for Use
■Measuring Force
• Use the ratchet stop to ensure consistent measuring force.
• The appropriate measuring force is achieved with the following procedure:
bring the measurement surfaces and the workpiece into light contact with
each other, stop momentarily, and then manually turn the ratchet stop
about three to ve times.
■Precautions for Measurement
• Use caution when measuring magnetized workpieces. If the product
becomes magnetized, measurement results may be affected.
■Precautions after Use
• After use, clean the entire product and check that none of the parts
are damaged.
If using in places exposed to water-based cutting uid, always apply
anti-rust treatment after cleaning.
• For storage, leave a gap of 0.2 to 2 mm open for the measurement
surfaces, and release the swivel clamp.
• If the product will not be used for three months or longer, apply
micrometer oil (Part No. 207000) to the spindle to prevent rust, and
store it with its battery removed.
• 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.
4. Interchangeable Anvil Replacement Method (340 Series Only)
Install the interchangeable anvil for the 340 series and then measure.
1 See the following conversion table and select the specied interchangeable anvil that matches the length of the
workpiece.
Conversion table
Measuring range
[mm]
Measuring range for each anvil sign
[mm]
M3 M4 M5 M6
300–400 300–325 325–350 350–375 375–400
400–500 400–425 425–450 450–475 475–500
500–600 500–525 525–550 550–575 575–600
600–700 600–625 625–650 650–675 675–700
700–800 700–725 725–750 750–775 775–800
800–900 800–825 825–850 850–875 875–900
900–1000 900–925 925–950 950–975 975–1000
Measuring range
[in]
Measuring range for each anvil sign
[in]
M1 M2 M3 M4 M5 M6
12"–18" 12"–13" 13"–14" 14"–15" 15"–16" 16"–17" 17"–18"
18"–24" 18"–19" 19"–20" 20"–21" 21"–22" 22"–23" 23"–24"
24"–30" 24"–25" 25"–26" 26"–27" 27"–28" 28"–29" 29"–30"
30"–36" 30"–31" 31"–32" 32"–33" 33"–34" 34"–35" 35"–36"
Tips
Be aware that the M6 interchangeable anvil does not have a sign on the anvil itself.
<Example> When switching from interchangeable anvil sign M4 to M5
2Loosen the tightening screw and remove the
interchangeable anvil (M4).
Rotate about three
to ve times.
Release swivel clamp.
M4
2
Tightening screw
Interchangeable anvil sign
Interchangeable anvil
3Cleanly remove the dirt from surface A of the anvil
bush and surface B of the selected interchange-
able anvil (M5).
4Align the marking of the interchangeable anvil with
the marking of the anvil bush, and secure them with
the tightening screw.
5Use the standard bar to set the reference point
and begin measuring (see "5. PRESET Value
(Reference Point) Setting").
5. PRESET Value (Reference Point) Setting
Set an arbitrary preset value (reference point registration) prior to setting the reference point.
• For reference point setting, use a periodically inspected (calibrated) gage (gauge block, setting standard
for outside micrometer, etc.).
• Reference point setting and measurement should be made in the same orientation and conditions with
the procedure as below.
1) Reference point registration
Register (preset) zero or gage dimensions such as a standard bar, etc. to this product. Two preset values (P1 and P2)
can be registered to the product.
Tips
Press and hold the [HOLD] key to switch between P1 and P2.
<Example> Registering 300.000 mm to P1
1 Briey press the [PRESET] key.
》The previously registered number is displayed and [P1] blinks.
Tips
• Zero will be displayed immediately after replacing the batteries.
• If [P2] is blinking, press and hold the [HOLD] key to cause [P1] to blink.
2Press and hold the [PRESET] key.
》The sign blinks.
Tips
Briey press the [PRESET] key to switch between [+] and [-].
3Press and hold the [PRESET] key.
》The leftmost number blinks.
Tips
The numbers will switch in order from [0] to [1] to [2] up to [9] and
then [0] each time the [PRESET] key is briey pressed.
M5
3A
B
Anvil bush
M5
M5
M5
4Marking
3
5
4
2
1
PRESET
PRESET
PRESET
PRESET
PRESETPRESET
2

Mitutoyo Corporation 20-1, Sakado 1-Chome, Takatsu-ku, Kawasaki-shi, Kanagawa 213-8533, Japan Date of publication: December 1, 2021
Printed in Japan
4 Briey press the [PRESET] key until [3] is displayed.
5Press and hold the [PRESET] key.
》The number in the next digit blinks.
6Repeat steps 4and 5, so that [3], [0], [0], [0], [0], and [0] are
displayed for the digits.
7Press and hold the [PRESET] key until [P1] blinks.
8 Briey press the [PRESET] key.
》[P1] is cleared and registration is complete.
2) Reference point setting
1Remove any dirt or dust from both the anvil and spindle measurement surfaces and the gage.
2Bring the measurement surfaces into light contact with each other (or pinch the gage and bring the spindle into light
contact with the gage), stop momentarily, and then apply the appropriate measuring force (see "3. Precautions for
Use ■Measuring Force").
3Press the [PRESET] key.
》[P1] or [P2] blinks, and the registered preset value (zero if not registered) is displayed.
Tips
• Press and hold the [HOLD] key to switch between P1 and P2.
• To change the preset value, see steps 2through 7in "1) Reference point registration".
4 Briey press the [PRESET] key.
》[P1] or [P2] is cleared.
Tips
• The display of this product automatically turns off if not used for 20 minutes or more. To display again, either rotate
the thimble or press the [ZERO/ABS] key.
• If the [PRESET] key is accidentally pressed during measurement, press the [ZERO/ABS] key to return to the former
state. If this does not enable the product to recover, perform "5. PRESET Value (Reference Point) Setting" once
more.
• Do not handle gages (gauge blocks, setting standards for outside micrometers, etc.) with your bare hands. Use
precision work gloves such as cotton gloves.
6. Measurement Method
• Be sure to perform reference point setting before measurement.
• Bring the measurement surface of the spindle slowly into contact with the workpiece. Moving too quickly
could deform the workpiece and affect measurement results.
Gradually and lightly bring the measurement surfaces into contact with the workpiece in the same orientation and
conditions as for reference point setting, apply the appropriate measuring force, and then read the display value
(see "3. Precautions for Use ■Measuring Force").
3
5
4
2
1
PRESET
PRESET
PRESET
PRESET
PRESETPRESET
7
8
PRESET
PRESET
6
PRESET
PRESET
PRESET
Key operation icon
=
> 2 s
=
< 1 s
7. Display Unit Angle Adjustment
Turn the bezel to rotate the display unit. After mounting the product, adjust it to an angle which is easy to read.
The display unit can be rotated up to 240° to the right (clockwise) and 90° to the left.
The specication of the display unit does
not allow rotations in excess of the above
angles for the stopper. Exercise caution and
do not rotate beyond the specied range.
This may cause damage.
Do not pull the display unit out or press it in
forcefully. This may cause damage.
8. Key Functions
■[ZERO/ABS] Key
1 Briey press the [ZERO/ABS] key.
》[INC] is displayed, and the display is set
to zero.
2Press and hold the [ZERO/ABS] key (for at
least 2 seconds).
》[INC] is cleared, and the length from the
reference point (anvil measurement surface)
is displayed.
■[HOLD] Key
1Press the [HOLD] key.
》[H] is displayed, and the display value is held.
2Press the key again to release the value.
■[in/mm] Key (in/mm Products Only)
• Press the [in/mm] key.
》[in] and [mm] switch back and forth each time the key is
pressed.
330°
ZERO/ABSZERO/ABS
21
HOLD
21
HOLD
in / mm
3
9. Function Lock Function (Preventing Accidental Operation)
This product has the Function Lock function, which disables the PRESET function and ZERO/ABS function in order to
avoid accidental changes to the reference point position.
Setting the Function Lock causes [ ] on the display unit to light up and disables the [PRESET] key, [ZERO/ABS] key,
and [in/mm] key (in/mm product only), with only the Hold operation function enabled.
1First press and hold the [HOLD] key, and then additionally press and hold the [ZERO/ABS] key (for at least 2
seconds).
》[H] and [ ] light up in sequence ([H] turns off rst).
2Perform the same operation to release the Function Lock.
HOLD
+
ZERO/ABSHOLD
+
ZERO/ABS
21
10. Errors and Troubleshooting
Error display Causes and countermeasures
Power Voltage Drop
The battery voltage is low. Replace the batteries promptly.
Counting Error
A counting error has occurred due to excessive speed or noise. Try removing
the batteries and reinstalling.
If it does not recover after being reset, repair is required: please contact the
agent where you purchased the product or a Mitutoyo sales representative.
Counting Error
Initial setting of the control unit failed, or a counting error has occurred due to a
sensor signal error. Try removing the batteries and reinstalling.
If it does not recover after being reset, repair is required: please contact the
agent where you purchased the product or a Mitutoyo sales representative.
Display Overow
The display value exceeds ±999.999. Rotate the thimble in the opposite
direction so that it starts counting again correctly.

Mitutoyo Corporation 20-1, Sakado 1-Chome, Takatsu-ku, Kawasaki-shi, Kanagawa 213-8533, Japan Date of publication: December 1, 2021
Printed in Japan
4
11. Specifications
Series No. Maximum measuring length Maximum permissible error JMPE*1
293
325, 350, 375 mm ±6 μm
400, 425, 450 mm ±7 μm
475, 500 mm ±8 μm
13, 14, 15 in ±0.0003 in
16, 17, 18 in ±0.00035 in
19, 20 in ±0.0004 in
389
25 mm ±5 μm
1 in ±0.00035 in
Series No. Spindle feed error (20 °C)
340
3 μm
0.00015 in
*1: Maximum permissible error for indicated value via contact with the full measuring face JMPE (20 °C).
Resolution: 0.001 mm
0.00005 in (in/mm products only)
Display unit: LCD (6-digit and minus sign)
Power supply: Button type silver-oxide battery (SR44 No.938882), x2
Battery life: Approximately 1.8 years
Temperature range: 5 °C to 40 °C (operating temperature), -10 °C to 60 °C (storage temperature)
Standard accessories: Phillips screwdriver (No. 05CAA952)
CE marking/
UKCA marking:
EMC Directive/Electromagnetic Compatibility Regulations: EN 61326-1
Immunity test requirement: Clause 6.2 Table 2
Emission limit: Class B
RoHS Directive/The Restriction of the Use of Certain Hazardous Substances in
Electrical and Electronic Equipment Regulations: EN IEC 63000
12. Output Function
■Display Value External Output
The display value can be output to a device by connecting the product and the external device with a connecting cable
(optional accessory).
■Connecting Cable Installation Method
1Remove the connector cap.
2Mount the connecting cable plug.
Tips
Note that using this product in a location with high noise may cause malfunctions (ickering or errors).
1
2
■Output Data Format
(1) Output order
(2) All "F"
(3) Sign
(4) Measured value
(5) Decimal point
(6) Unit
（1）
MSD LSD
（5）
（2）
（1111）
（4）
（3）
+:0（0000）
–:8（0001）
3（1100
）
4（0010
）
5（1010
）
（6）
mm:0（0000）
in:1（1000）
■Timing Chart
0 ms ≤ T1 ≤ 200 ms
0.1 ms ≤ T2 ≤ 2 ms
0.1 ms ≤ T3 ≤ 2 ms
0.1 ms ≤ T4 ≤ 2 ms
0 ms ≤ T5 ≤ 130 ms
T6 ≤ 85 ms
*1: DATAsw is LOW while the data output key is being pressed.
*2: The time T6 until DATAsw goes to the LOW level and REQ is input is determined by the data processing device
performance.
13. Optional Accessories
■Connecting Cable
Recommended products: L-type (The cable will not interfere when the thimble is operated.)
• Connecting cable: No.04AZB512 (1 m)
• Connecting cable: No.04AZB513 (2 m)
Straight type (Be careful of the cable when operating the thimble.)
• Connecting cable: No.959149 (1 m)
• Connecting cable: No.959150 (2 m)
L-type
Straight type
For optional accessories other than the above, see the General Catalog.
14. Off-Site Repairs (Subject to Charge)
Off-site repair (subject to charge) is required in the case of the following malfunctions. Please contact the agent where
you purchased the product or a Mitutoyo sales representative.
• Faulty spindle operations
Scratches on the spindle may cause interference while the spindle is retracting, causing faulty operations.
Rust on the spindle may also cause faulty operations.
• Inconsistent measured values
Burrs or nicks generated by an impact on the measurement surfaces may affect measurement repeatability.
• Count value errors/faulty operations
If the thimble of this product is retracted too far, the internal sensor will be damaged. This may cause count errors or
faulty operations.