GSM-20H10 User Manual
87
reading measured by the first programmed source
value, and V2 represents the voltage measurement
reading measured by the second programmed source
value. When calculating the Vceoff value, two
voltage source values need to be set.
VarAlpha:
The alpha (α) value defines the characteristics of the
varistor. The definition of α value is expressed by the
following formula:
α=log(I2/I1)/log(V2/V1)
V1 represents the voltage measurement reading
measured by the first programmed I-Source value,
V2 represents the voltage measurement reading
measured by the second programmed I-Source value,
(I2/I1) and (V2/V1) take the absolute value for
calculation. When performing VarAlpha calculation,
two I-Source values need to be set.
Dev:
Provides the percent deviation between the
measurement reading and the reference value set by
the user, as expressed by the following formula:
Dev=[(X-Y)/Y]*100%
X represents the displayed measurement reading
(voltage, current or resistor), and Y represents the
reference value. Y can be manually set by entering a
value in the Ref value box. The unit of Y (A, V or Ω)
is determined by X.
Parameter Description And Operation
Parameter operation
Vsrc/Isrc/Cmpl
* The detailed setting operations are the same as
the Source chapter decription, please refer to page
56.
