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DIN 2270 TESATAST D i a l T e s t I n d i c a t o r s
NF E 11-053
TESATAST Dial Test Indicators

These lever-type dial test indicators are especially intended for use on the shop
floor or in the inspection room – Ideally suited for comparative measurements on
a surface plate, for instance – Determine form, shape and position deviations as
well as axial and runout errors.
–– Bidirectional measuring with automatic reversal inside the movement.
–– Continuous clockwise pointer rotation providing error-free reading.
–– Insensitive to magnetic fields.
–– Jewelled movement with 7 rubies.
–– Ball-bearing lever system. Measuring insert swivelling through to 240°.
–– Very low measuring force.
–– Exceptionally robust with full-metal construction.

Standard model Perpendicular model Lateral Model
Well proven over thousands Lever test indicator with dial Dial test indicator with dial face
of times. The dial face is face mounted at right angle to mounted parallel to the axis of
parallel to the axis of the the axis of the measuring insert. the measuring insert but on the
measuring insert. flat side of the dial housing.

24 17,4
15 10,1

ø38,4 77 / 101 70 / 94
ø28,5
11,8 4513 11,8 11,8
35,88,3 35,8 35,8
70 / 94
ø2
7,6

8,54 Measuring direction Measuring direction
6,4 ø 1,5 B
A
α
1,65
Shorter lever length

Note on the use of TESATAST dial test indicators
With the measuring insert lying parallel to the workpiece surface (Fig. A), these indicators give true reading due to the
amplification factor to 1:1.
In another measuring position (angle α in Fig. B), the effective lever length changes so that the read value needs to be
corrected. With respect to this, also refer to the instruction manual.

Permissible limits of a metrological characteristic (MPE/MPL)

0,02 mm 0,01 mm 0,001 mm /
10 µm 0,002 mm
Deviation span, fe 0,20 mm 27 µm 2 µm
0,10 mm 12 µm 5 µm
Deviation span within the local measuring 0,02 mm 13 µm 1 µm
span, ft 31 µm 3 µm 3,5 µm
Total deviation span, fges 4 µm 3 µm 1 µm
Repeatability limit, fw 1,5 µm
0,15 N
Max. hysteresis, fu 4 µm 0,06 N 0,15 N
Measuring force with insert:
Length 12,53 mm
36,53 mm
0,06 N

G-3