Table 6-4: Programmable Z Adjustment Pots; Table 6-5: Formulas To Calculate R And L - Ametek California Instruments MX15 Series User Manual

Controller (7003-718-5)
V = M easured RM S voltage under no load.
NL
V = M easured RM S voltage under load
L
I = M easured RM S current.
F = Source frequency (50 Hz).
∆Φ= Phase angle shift between load and no load conditions. Record phase angle from phase meter under NL and L
condition and determine phase shift.
Formulas to calculate R and L component of output impedance:
MX15
MX15 R resistive

Table 6-4: Programmable Z adjustment pots

Definitions:
R = (VNL * cos(
X = ( V
L NL
L = X / (2 * Pi * F)
L

Table 6-5: Formulas to calculate R and L

Xl inductive
R121 R122
∆Φ
) - VL ) / I
∆Φ
* sin( )) / I
121