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G a u ge B l oc k C o m pa r ato r s EN ISO 3650

TESA UPC– for Comparative Measurement For gauge blocks
ranging from 0,5 mm
TESA UPC Gauge Block Comparator for Comparative Measurement to 100 mm or 0.02 in
–– Measures gauge blocks of same nominal length by comparison. to 4 in
–– Comes with the new template system for positioning the gauge blocks. (0,5 to 500 mm on
–– Single or dual template system for optimum ease of gauge handling. request)
–– Features TESA high-precision inductive probes. Comparative mea-
–– Allows ultra-precise temperature measurement, integrated. surement procedure
–– Transfers on-line all measured length and temperature values. with transference of
–– Executes computer-aided data processing with all required correction values the length of a refe-
rence gauge block
included. to the gauge block
–– Performs calibrations that meet the requirements of both ISO standards and being measured.

EA guidelines (EAL – European cooperation for Accreditation of Laboratories). Measuring confi-
–– Includes an execution for greater accuracy along with a calibration certificate guration
2 probes connected
(optional). in sum measure-
ment (function
TESA UPC is specially designed for the If specified, TESA can also provide the +A+B) with mecha-
calibration – or dimensional inspec- temperature device available as an nical contact with
tion – of gauge blocks with nominal option. This device has 4 PT100 plat- the measuring face.
lenghts ranging from 0,5 to 100 mm. inum resistances, each capturing the
The configuration, which consists temperature of the two gauge blocks Measuring points
of two probes aligned opposite one along with that of both the measuring On the reference
another, associated with both the table and the support. Computer- gauge block: at
concept and quality of the measuring aided data processing lets you carry the centre of the
system provides full guarantee for an out any calibration most reliably and measuring face
extra low uncertainty of measurement. rationally – for sure. (point R). On the
Although TESA UPC is mainly intended gauge block to be
for manufacturers and end-users of measured: at the
gauge blocks, this comparator is also centre (point 1) as
widely used in nationally accredited well as the 4 corners
laboratories. of the measuring
face, each lying
2 mm away from
the adjacent faces
(points 2 to 5).

Central length lc is
defined by probing
both points R and 1.

Establishing lengths
at any point requires
measurements to
be taken at points R
plus 1 to 5.

Variation in length v
is the result of mea-
surements taken at
points 1 to 5.
≈ 23 kg (comparator
complete, but
without computer).
≈ 4 kg (temperature
device)
All instruments
with the option for
greater accuracy are
delivered with serial
numbers
In-house calibration
certificate for the
version with greater
accuracy or decla-
ration of
conformity for the
standard version.
Temperature device
with SCS certificate.

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