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DKD calibration certificates for roughness measuring devices
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DKD-DAkkS calibration certificates for roughness measuring devices

HOMMEL-ETAMIC is accredited by the DAkkS for the calibration of devices and entiresurface measurement units. The calibration can be carried out either in ourmeasuring laboratory or directly at your premises.
The issuing of a DKD-DAkkS calibration certificate is included.

Calibration cycle of a stylus measuring device:

  • Start-up of the complete device combination at the location
  • stylus profiles on optical flat glass: Rz
  • stylus profiles each on 6 grooves of the PTB calibrated depth settingstandard: Pt
  • 12 stylus profiles on PTB calibrated roughness standards: Ra, Rz, Rmax
  • If error < 3 times standard uncertainty: calibration certificate

 

Stylus measuring device according to DIN 4772, ISO 3274 (DKD-R 4-2)



Measuring range [µm]

Measurement uncertainty

Rillentiefe Pt

0,2 to 12

UNormal + 0,01 µm

Ra

0,1 to 3,5

UNormal + 1% Ra

Rz, Rz5

0,5 to 20

UNormal + 1% Rz

Rmax, Rz1max

0,5 to 20

UNormal + 1% Rmax




 

Contact Worldwide

Industrial Metrology
+49 7720 602-0
+49 7720 602-123

Contact North America

Industrial Metrology
+1 248 853-5888
+1 248 853-1505