Yes, but it depends upon the particular type of nickel coating that has been applied to the steel. Subtract the BMR from subsequent coating thickness measurements to obtain the thickness of the coating over the ‘peaks’ of the rough surface.Ĭan the PosiTest measure nickel on steel? This average value is called the “base metal reading” or “BMR”.
To compensate for the influence of substrate conditions (including roughness), measure the uncoated substrate/part at a number of spots to obtain a representative average value. However, coating thickness gages will instead measure the coating thickness from the effective magnetic surface, which is located somewhere between the highest peaks and deepest valleys of the profile. It is generally accepted that coating thickness should be measured from the highest ‘peaks’ in the rough surface thus ensuring they are covered by the protective coating. Is the PosiTest affected by the roughness of the steel substrate below the coating?Īll coating thickness gages are influenced to some degree by substrate roughness. Owing to the mechanical (non-electronic) design of the PosiTest, it does not require certification as an “intrinsically safe” device. “Intrinsically Safe” (I.S.) is commonly used to describe electronic products destined for a hazardous (explosive) operating environment. A PosiTest gage that sits unused on a shelf for several years will not drift or lose its calibration. The PosiTest features a rare-earth permanent magnet that prevents any kind of drift over time. These typically do not include actual instrument readings, and are often insufficient to meet common quality requirements. Beware of ‘Certificates’ or ‘Certificates of Conformance’ offered by competitors. A Long-Form Certificate of Calibration traceable to NIST or PTB is included, which documents actual readings taken by your instrument at our calibration laboratory on standards traceable to a national metrology institute. The PosiTest arrives fully calibrated and ready to measure. (Frequently Asked Questions) Is the PosiTest calibrated at the factory? Hot dip galva-nizing, hard chrome metalizing, paint, enamel, plastic coatings on steelĪccessories for DeFelsko Inspection Instruments - Online Catalogį.A.Q. Hot dip galva-nizing, hard chrome metalizing, paint, enamel, plastic coatings on steel.
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Certificate of Calibration showing traceability to PTB included (Long Form)Ĭonforms to ASTM D7091/B499, ISO 2808 and othersĭeFelsko PosiTest Pull-off Gages: 4 Models Available.“V” grooves in probe housing and gage base allow correct positioning on cylindrical objects.Positive visual and audible indicators to designate when thickness reading is established.Unique overall design, fully supported, positive positioning, no pivoting tendencies during measurement.Extra rugged housing, not affected by mechanical shock, water, acid or solvents.Highly wear resistant Carbide Probe for longest life and continuous accuracy.PosiTest magnetic pull-off thickness gage for the non-destructive measurement of non-magnetic coatings on steel.
Press the white measuring button and read the result directly on the meter scale.Mechanical Dial-Type Coating Thickness Gage for Non-Magnetic Coatings on Steel
Recommended by official test and research laboratories, Aqua-Boy moisture meters are the automatic choice of industrial specialists and scientists worldwide. SupplierĬonstruction, Cork, Paper, Polystyrene, Timber, Wood Easy to use and highly portable, these compact meters deliver instant results with an accuracy of 0.1%. Aqua-Boy moisture meters analyse the moisture content of solid materials in a host of applications. The Aqua-Boy BM range of moisture meters are specifically calibrated and tailor made for the construction industry.
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