Posted July 5, 2018 by ndic_support
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The following values are approximate, and should be calibrated for each instrument and attachment before use as described in the Users Manuals. It is also advisable to recheck some calibrations periodically. This is because some properties, for example, of piezo-electric crystals, can depend not only on the temperature, but also on the humidity, time and usage (aging and previous history effects).
1 All stainless steel parts of internal surfaces are 316-type non-corrosive, non-magnetic steel. Other internal parts are either silica, PTFE (Teflon) of Kel-F.
2 Much smaller particles trapped between two surfaces can be “detected” due to the much larger deformations they produce on the surrounding surfaces.
3 Values quotes are for semiconductor gauges. Resistance (foil) strain gauges are about 100 times less sensitive (but sturdier and less prone to drift).