How should enveloping measurements with a hand-held sensor be performed?
Enveloping measurements with a hand-held sensor must be consistently applied to achieve consistent readings. You need a consistent pressure (2.2 Ibs or 1 kg force) of the sensor against the machine, a consistent angle of attack (90 10), consistent type of probe (magnetic vs non-magnetic), clean measurement area (surface dirt and paint can be a problem), and at the same place on the machine each time.
