PCB Testing Equipments
PCB multiple coil tester

The MICROTEST PCB multi-coil impedance testing machine 9332 is the maximum efficiency detection solution for WPC wireless charging applications. With a precision four-wire impedance measurement mechanism, its impedance measurement frequency band may go up to 1MHz and is compliant with the working frequency required by Qi or PMA wireless charging association standards (205KHz by Qi and 304KHz by PMA).

The MICROTEST PCB multi-coil impedance testing machine 9332 enjoys a wide measurement range over the three major component electrical parameters: lower limit of resistance up to 1mΩ, inductance in the range of 0.1nH to 100H at an accuracy of 0.1% ± 1nH, and capacitance in the range of 0.01pF ~ 1F at an accuracy of 0.1%±1pF. In addition, it features a 48-point test for copper foil etching or silver printed winding coils to test up to 24 coils in one multi-row board to hugely outperform single channel LCR meters in terms of testing efficiency.

  • Multi-channel automated testing for up to 24 coils in row board
  • Impedance characteristic measurement frequency 20Hz~1MHz (Qi 1.2 & PMA Association standard compliance)
  • Optional 6630NFC for high frequency measurement (the Rezence standard proposed by PMA is of frequency range at 6.78MHz)
  • Four-wire precision impedance parameters measurement
  • 0.1% basic accuracy
  • Output impedance 100Ω


Model 9332
Test Pin 48 
Conductance Test
Test Frequency 20Hz-200kHz
AC Test level 10mV-2V
Resistance Test 0.01mΩ~100MΩ  
Capacitor Test 0.01pF~1F      
Inductor Test 0.1nH to 100H 
Open/Short Test 1KΩ ~ 50KΩ
Conductance Test Time 20 Points/Sec Approx.
Input 1. Editing
2. File Download 
Display option
Power Supply AC110/220V 500W
Working Temperature 10°C~40°C
Working Humidity Less than 50% Relative
Air Supply 5~8Kg/cm²
Test Area W*D 300 x 200 mm
Cylinder Distance 250mm
Cylinder Diameter Ø 12mm 
Size L*W*H 750 x 750x 700 mm 
Weight 120 Kg

Parameters Measurement Ranges

Parameter Range
L, LK 0.1nH ~ 9999.99H
C 0.00001pF ~ 999.99mF
Q,D 0.00001 ~ 99999
Z,X,R 0.00001Ω ~ 99.9999MΩ
Y 0.01nS ~ 99.9999S
θ -180°~ +180°
DCR 0.01mΩ ~ 99.999MΩ
Turn 0.01 ~ 99999.99turns
Pin-Short 12 pairs, between pin to pin


Wireless charging PCB coil board、NFC thick copper charging board、PCB Layout coil

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