TX7410 Operation Manual
11
AUX BIN:
Primary parameter is within limits, but whose secondary parameter
measurement result is not within limits.
Sorting mode:
ABS (absolute deviation):
absolute deviation between measured result and nominal
value is compared with bin limit.
PER (percentage deviation):
percentage deviation between measured result and
nominal value is compared with bin limit.
2.3.3 Parameter display
Direct:
The actual measured values will be displayed.
⊿:
Absolute devation between measured result and nominal value is displayed.
⊿% :
Percentage deviation between measured result and nominal value is displayed.
2.3.4 Automatic LCZ
The instrument automatically selects L, C, Z and equivalent mode according to impedance
characteristics of the device under test, to automatically recogonize unkown and mixing
components.
At AUTO mode, primary and secondary parameters are selected according to impedance
angle:
Impedance angle Primary and secondary parameters
θ>5
o
L-Q
θ<-5
o
C-D
others
Z-θ
Equivalent mode is selected according to impedance:
Impedance
Equivalent mode
Z>1kΩ
parallel
Z<1kΩ
series
Keep the original parameter at similar status of short circuit or open circuit. If primary and
secondary parameters are modified, automatic LCZ function will be cancelled.
2.3.5 Discharging test
The instrument is operated with external bias, and generally external bias source has DC
isolated circuit. When discharging function is turned on, the instrument will perform
low-impedance discharge on sampling path to reduce the effect on test accuracy and
speed caused by charge on isolated capacitance. Low impedance lasts for 10 to 20ms.
