Starrett T436.1XRL-3 User manual

436.1 OUTSIDE MICROMETER
USER MANUAL

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READ THIS MANUAL BEFORE USING THE INSTRUMENT

ANTES DE UTILIZAR EL INSTRUMENTO,

LEA ATENTAMENTE ESTE MANUAL

LIRE CE MANUEL AVANT D'UTILISER L'INSTRUMENT

LEIA ATENTAMENTE ESTE MANUAL ANTES

DE UTILIZAR O INSTRUMENTO

使用仪器前请阅读本操作手册

DIESES HANDBUCH VOR DER VERWENDUNG

DES MESSGERÄTS LESEN

LEGGERE ATTENTAMENTE QUESTO MANUALE PRIMA

DI UTILIZZARE QUESTO STRUMENTO

03/16 PDF

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TABLE OF CONTENTS

Components 5
Characteristics 8
Precautions When Using the Micrometer 9
Precautions When Measuring 9
How to Read a Micrometer 10
Graduated in Hundredths of a Millimeter (0.01mm) 11
Graduated in One-Thousandth of a Millimeter (0.001mm) - (1μm) 12
Graduated in Thousandths of an Inch (.001") 13
Graduated in Ten-Thousandths of an Inch (.0001") 14
Spanish 15
French 23
Italian 31
German 39
Chinese 47
Portugese 55

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1 2 3 5

4

7
8

9

COMPONENTS

6

1. Measuring faces (stationary and movable)

- Superficies de medición (fija y móvil)

- Faces de mesure (fixe et mobile)

- Superfici di misurazione (fissa e mobile)

- Hartmetall-Messflächen

- 测量端面 (固定、活动测砧)

- Superfícies de medição (fixa e móvel)

2. Spindle

- Husillo micrométrico

- Tige

- Albero principale

- Messspindel

- 芯轴

- Fuso micrométrico

3. Lock nut

- Traba

- Bague de blocage

- Anello di bloccaggio

- Feststellung

- 固定钮

- Trava

4. Vernier Scale

- Nonio

- Vernier

- Nonio

- Skalenhülse

- 游标

- Nônio

5. Graduated thimble

- Tambor graduado

- Tambour gradué

- Tamburo graduato

- Skalentrommel

- 微分筒

- Tambor graduado

6. Ratchet (Friction Thimble)

- Carraca o Tambor de Fricción

- Bouton à rochet ou tambour à friction

- Comando o tamburo con frizione

- Ratsche

- 棘轮摩擦套管

- Catraca ou tambor de fricção

7. Graduated Sleeve

- Cilindro graduado

- Manchon gradué

- Bussola graduata

- Skalenhülse

- 固定套筒

- Cilindro graduado

8. Main reading line

- Línea de lectura principal

- Ligne de lecture principale

- Linea di fede

- Bezugslinie

- 主读数线

- Linha de leitura principal

9. Frame or Instrument Body

- Arco o cuerpo del instrumento

- Cadre ou corps de l'instrument

- Arco o corpo dello strumento

- Bügel

- 尺架

- Arco ou corpo do instrumento

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436.1 OUTSIDE MICROMETER

THIS IS A STARRETT USER GUIDE FOR THE 436.1 OUTSIDE MICROMETER.

ALL SPECIFICATIONS IN THIS DOCUMENT ARE CORRECT AT TIME

OF PRODUCTION AND ARE SUBJECT TO CHANGE. PLEASE CONTACT

STARRETT FOR FURTHER INFORMATION.

PKG08768-UM436.1 7

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ENGLISH

CHARACTERISTICS

INCH MILLIMETER RANGE (IN/MM)

0.0001 0.001

1

Resolution

Accuracy

1. Resolution: Smallest difference between indications of a displaying device that can
be meaningfully distinguished. For a digital displaying device, this is the change in
the indication when the least significant digit changes by one step (VIM).

2. Accuracy: Closeness of the agreement between the result of a measurement and
a true value of the measurand (VIM).

P.S.: VIM - International Metrology Vocabulary

• End Measuring Rod or "Standard" with spherical ends comes with
micrometers over 25mm range.

0.001 0.01

0.0001 0.002 0-3 (0-75)

2

0.0002 0.004 4-6 (100-150)

• Smooth ratchet stop or friction thimble for uniform pressure.

• Rigid one-piece steel tapered frame ribbed for extra strength. Black
enameled finish.

• Satin chrome finish thimble and sleeve, with staggered lines and
distinct figures for precise and easy readability.

NOTE: The pictures shown are illustrative; the components may vary according to the model.

0 to 6 (0 to 150)

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ENGLISH

PRECAUTIONS WHEN USING THE MICROMETER

• Clean the measuring faces with a smooth cloth or chamois.

• Do not expose the micrometer to direct sunlight or extreme temperatures.

• Avoid mechanical shocks so as not damage the instrument.

• Do not disassemble the micrometer.

• Do not use compressed air on the micrometer; this can contaminate
the spindle.

• After using the micrometer, clean it and apply a thin coat of special
lubricant for instruments on the measuring faces and spindle to
avoid oxidation.

• Keep the micrometer, preferably, in its own original package.

PRECAUTIONS WHEN MEASURING

• Do not measure a rotating part; it is dangerous and causes the faces
in contact to wear.

• Do not apply excessive pressure when measuring. Use the ratchet or
thimble to obtain the appropriate measuring pressure.

• Parallax Error: Be careful when measuring to avoid a parallax error.
This error occurs when the observation point is not perpendicular to
the display. Take the reading perpendicularly to the thimble, sleeve
and vernier lines.

right

wrong

wrong

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ENGLISH

HOW TO READ A MICROMETER

INITIAL ADJUSTMENTS

• Before taking a reading, verify that the instrument is set to zero. For
micrometers from 0 to 1" (25mm), carefully clean the measuring
surfaces (1) and bring them together to start the reading. On
micrometers over 1" (25mm), use the "standard" with the ends
properly cleaned.

• If necessary, adjust the micrometer to zero, insert the spanner wrench
in the small slot of the sleeve (7) and turn the sleeve until the line on
the sleeve (8) coincides with the zero line on the thimble (5). When
the micrometer resolution is 0.001mm, adjust the zero through the
vernier zero line (4).

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ENGLISH

GRADUATED IN HUNDREDTHS OF A MILLIMETER (0.01MM)

• The main reading line (8) has a split graduation to 0.5mm, created by
the 1mm graduated vertical lines above and below the main reading line.

• The thimble (5) is divided also in fifty equal parts, with each line
representing 0.01mm and every fifth line being numbered from 0 to

50. To read the micrometer, add the number of millimeters and half­millimeters visible on the sleeve (7) and the number of hundredths of a
millimeter indicated by the thimble. See the example:

HOW TO READ A MICROMETER

Follow the "eye path" below, along with the explanation for practice.

The 3mm sleeve graduation is visible ................................................... 3.00mm

One additional 0.5mm line is visible on the sleeve ................................ 0.50mm

The division of line "5" on the thimble coincides with the reading line

on the sleeve .......................................................................................

The micrometer reading is ................................................................... 3.55mm

5 x 0.01=

0.05mm

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ENGLISH

10

GRADUATED IN ONE-THOUSANDTH OF A MILLIMETER (0.001MM) - (1μM)

• Reading a 0.001mm micrometer with vernier (4) is exactly like reading
a 0.01mm micrometer, except that the reading in one-thousandths of
a millimeter is obtained from a vernier scale on the sleeve, which
consists of ten divisions numbered every two, and each division is
equal to 0.001mm.

• First obtain the hundredths of a millimeter (0.01mm), as previous
explained. Next, see which of the lines on the vernier coincides with a
line on the thimble (5). If it is the first line, add 0.001mm to the reading
etc. See example:

HOW TO READ A MICROMETER

Follow the "eye path" below, along with the explanation for practice.

0

8
6

4
2

0

0

5

The one-hundredths of a millimeter should be obtained as previous explained..... 3.55mm

Line "3" on the vernier coincides with one of the lines on the thimble .... 0.003mm

The micrometer reading is ................................................................... 3.553mm

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ENGLISH

GRADUATED IN THOUSANDTHS OF AN INCH (.001'')

• The reading line on the sleeve (8) is graduated to 0.025". Every fourth
line, which is longer than the others, designates hundred thousandths
(.100''). For example: the line marked "2" represents .200" etc.

• The thimble (5) is divided into 25 equal parts, each line represents
.001" and it is numbered consecutively. To read the micrometer,
observe the indicative lines of tenths of an Inch and the additional lines
(.025") visible on the sleeve, and the number of thousandths indicated
by the line on the thimble. See example:

HOW TO READ A MICROMETER

Follow the "eye path" below, along with the explanation for practice.

Line "6" on sleeve is visible ................................................................. .600"

There is one additional line visible representing .025" ........................... .025"

The division of line "5" on the thimble coincides with the reading line

on the sleeve .......................................................................................

The micrometer reading is ................................................................... .630"

5 x .001=

.005"

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ENGLISH

GRADUATED IN TEN-THOUSANDTHS OF AN INCH (.0001")

• The micrometers graduated in Ten-Thousandths of an Inch read like
micrometers graduated in thousandths, except that an additional
reading in ten-thousandths is obtained from a vernier scale (4). The
vernier consists of ten divisions on the sleeve, each one equal to one
ten-thousandth of an Inch (.0001").

• To read a ten-thousandths micrometer, first obtain the thousandths
reading, and then see which of the lines on the vernier coincides with
one of the lines on the thimble (5). If it is the line "7" on the sleeve, add
.0007" etc. See example:

HOW TO READ A MICROMETER

Follow the "eye path" below, along with the explanation for practice.

First obtain the thousandths as previous explained ................................... .630"

Line "9" on the vernier coincides with one of the lines on the thimble ........ .0009"

The micrometer reading is ....................................................................... .6309"

* THIS IS AN UNCONTROLLED COPY SO THAT THE PRODUCT MAY BE MODIFIED AT ANY
TIME WITHOUT PRIOR NOTICE.

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