DFT
www.atorn.de
Base material
Steel, iron, cast iron base materials (FE)
Non-ferrous metal base materials (NF)
Influence on base material (FE) permeability in
regard to factory calibration standards (master
calibration): 137 FN ± 0.2 FN
Measurement error of 10 % for ferrite content of
122 FN ± 1.1 FN
Influence of the el. conductivity of the base
material (NF) in the range from 30 to
100 % IACS: Measurement error ≤ 2 %, valid
for the total measurement range
Temperature
no influence
In a range of ± 20 °C: ± 3 µm
In a range of ± 68 °F: ± 0.12 mils
Scope of Supply
Gage; 2 batteries; USB cable type C to type A (1 m (39.4 inches)); guideline; calibration set
suitable to gage type
• Calibration set for gage type FE
(Test plate NF/FE (603-477) and 3 calibration foils (ca. 25 µm/0.98 mils (505-953),
75 µm/2.95 mils (505-955) and 540 µm/21.26 mils (505-965))
• Calibration set for gage type FE+NF
(Test plates NF/FE (603-477) and ISO/NF (603-478) as well as 3 calibration foils (ca.
25 µm/0.98 mils (505-953), 75 µm/2.95 mils (505-955) and 540 µm/21.26 mils
(505-965))
Order Information
Gages
Description
Order No.
ATORN DFT FE
Gage type for measurements on ferrous base materials (Fe) only
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ATORN DFT FE+NF
Gage type for measurements on both as measurements on ferrous (FE) as well as on non-ferrous
metal base materials (NF)
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Influence*
Steel, iron, cast iron base materials (FE)
Non-ferrous metal base materials (NF)
The following values are valid for a coating thickness with a nominal value of 75 µm / 2.95 mils.
The quantity of influences are stated with the expanded measurement uncertainty U with the expanded factor of k = 2 (defines an interval
with the confidence level of 95.45 %) - according to ISO/IEC Guide 98-3:2008-09 "Guide to the expression of uncertainty in measurement"
.
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