Secondary Function - Smooth - AEMC 5070 User Manual

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NOTE:
During the procedure, pressing the DISPLAY button or turning the rotary
switch cancels the calculation in progress.
T used for the calculation is not known, the instrument can
temperatures (see § 3.10).
The insulation resistance varies with the measurement temperature. This
dependence can be approximated by the expression:
Where:
Rc: Corrected Insulation Resistance to the reference temperature Rc
Reference Temperature
RT: Measured Insulation Resistance at Probe Temperature
KT:
KT = (1/2) (Rc Temperature Reference-T) / T.
T: Probe Temperature.
T: Temperature change for which the Insulation Resistance is divided by 2.
A motor winding is tested at 1000 V in a 68°F environment. At the end
data is at 104°F. The corrected Insulation Resistance value corrected to 104°F
above when temperature correction is activated.
parameter down.
The SMOOTH function (activated by pressing the 2nd + SMOOTH buttons)
function is useful if the insulation values displayed are very unstable.
RSMOOTH = RSMOOTH + (R – RSMOOTH) / N
Therefore, displayed results are presented more smoothly.
Megohmmeter Model 5070
www.
Rc = KT * RT
Temperature to which the Insulation.
Resistance measurement is adjusted.
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