Normas para verif de paquimetros

UDC 389 :531.714.8 :681.2 :620.1

DEUTSCHE N ORM

December 1988

Vernier callipers

DIN

Requirements and testing

862

MeBschieber; Anforderungen, Prufung

Supersedes March 1979 edition.

In keeping with current practice in standards published by the International Organization forStandardization (ISO), a comma hás been used throughout as the decimal marker.
See Explanatory notes for connection with International Standards ISO 3599-1976 and ISO 6906-1984 published by the International Organization for Standardization (ISO).
Dimensions in mm

1 Reld of application m >

This Standard applies both to analogue vernier callipers with a maximum measuring range f rom O to 2000 mm and a vernier or circular scale graduated in 0,1,0,05 or 0,02 mm, and to vernier callipers with digitized output over ranges from O up to a maximum of 1000 mm in 0,01 mm incrementa.

2 Terminology
See DIN 2257 Parts 1 and 2 for concepts relating to dimensional metrology, and DIN 1319 Parts 1 to 4 for basic metrological concepts. 3

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Designations and dimensions

Vernier callipers are not expected to conform to the designs illustrated here; compliance is only required in the case of the dimensions specified.
For general tolerances, accuracy grade m as specified in DIN 7168 shall apply.

3.1 Vemier callipers designed for internai, externai and depth measurement

o.-z: oO Type 1A, with clamping screw
Type 2A, with clamping device
The above types are normally designed for measuring lengths up to 160 mm.

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Knife-edge faces for measuring internai dimensions of 3 mm or more

5.5

'C 03

oE

Clamping screw
Slider

Depth-measuring blade

Beam

3

10

11

12

13

14

15

16

17

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Vernier with vernier scale

Fixed jaw

~7~
Main scale

Measuring faces for depth measurement Clamping device

Faces for externai measurement

Dimensions as specified in table 1; indication as per clause 4.