UCE-CT220S Fault Locator & Curve Tracer


SKU: UCE-CT220S Category:
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V-I test method is widely used in the World for PCB repairing. Fault detection can be done without energizing PCB boards.

40 different test conditions can be created with different combinations of test voltage, source resistance and frequency values.

There are two modes in the PC Software.
1- Basic mode
2- Advanced mode

In Basic mode, test steps can be set manually. By activating the dual mode, two PCB boards can be compared instantly. The comparison is made within a certain tolerance and this variable can be adjusted by the user. The result of the comparison is reported visually and audibly by the program. If audible warning is not preferred, it can be turned off by the user.
Values ​​of basic circuit elements such as capacity and resistance are displayed on the screen.
In Advanced mode, a database can be created for the PCBA board. The impedance curve of each point on the PCB is recorded. These records can be matched with the visual image of the PCB. Thus, when testing the same card in the future, it is seen which impedance corresponds to which coordinate on the PCBA.

Another feature of the product is that it can be used in standalone mode regardless of the PC. In this case, impedance curves can be observed on any oscilloscope. In Standalone mode, the product works like the basic mode in the PC program. The result of comparison with a buzzer on the device can be audibly reported by the device.


  • Channels Number: 2
  • Waveform: Sine wave
  • Test Frequencies: 10Hz, 100Hz, 500Hz, 2000Hz
  • Open circuit Voltage:  ±2.5V, ±5V, ±10V, ±20V
  • Source Resistance: 47R (only @2.5V and @5V), 1kΩ, 10kΩ
  • Test probe connector: 4mm banana plug standard multimeter probe
  • Oscilloscope output: 2 BNC connector
  • PC connection: mini USB connector (USB HID protocol).
  • Storage: internal 8MB USB disk for firmware upgrade (bootload)
  • Power Consumption: 4W
  • Dimensions: 169 x 83 x 31 mm
  • Weight: 245gr

Package List:

  • 1 pc UCE-CT220S Tracer
  • 2 sets 4mm banana multimeter probes
  • 1 pc Banana to crocodile cable
  • 2pcs BNC to BNC cables for connection to any oscilloscope
  • 1 pc USB cable


Additional information

Weight 760 g
Dimensions 23 × 12 × 8 cm



How to update firmware of UCE-CT220S

PC Software:
The program compatible with Win8, Win10.
Requirement: Framework 4.5 or later

Firmware History

PC Software:
Released on 2021-06-21
Recent changes;
  • Added a checkbox to show all saved test points for database (it is on Load Image window).
  • Some optimizations.

Released on 2021-06-11
Recent changes;
  • Fixed some bugs in the comparison algorithm.
  • Some optimizations.

Released on 2021-05-23
Recent changes;
  • Improved the comparison algorithm.
  • Some optimizations.

Released on 2021-03-24
Recent changes;
  • Improved the comparison algorithm.
  • Improved USB connection algorithm.
  • Fixed some bugs.
  • Some optimizations.

Released on 2020-04-13
Recent changes;
  • Improved the comparison algorithm.
  • Fixed some bugs.
  • Some optimizations.

Device firmware:
Released on 2021-05-08
Recent changes;
  • Improved restoring of settings algorithm.

Released on 2020-12-05
Recent changes;
  • Some optimizations.

Released on 2020-04-13
Recent changes;
  • Improved the adc acquisition algorithm.
  • Improved the comparison algorithm for standalone mode.
  • Fixed some bugs.
  • Some optimizations.


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