Description
Would you like to add an LCR Meter to your electronics workbench? Build your own! The Elektor 2 MHz LCR Meter Kit is an automatic impedance measuring bridge with extended functionality.
Features
- Measures the resistance, capacitance and inductance of components with an impedance of 10 mΩ to 100 MΩ
- Test frequency from 50 Hz to 2 MHz
- Four possible test voltages (0.1, 0.2, 0.5 and 1 Vrms)
- Additional DC polarization up to 5 V for capacitors and 50 mA for inductors
- Two configurations possible:
- Standalone mode with main board + display extension
- Main board (without display) connected via USB to a computer running the user program (Windows, Linux, MacOS)
Specifications
| Display | Parameter values
Equivalent circuit
Frequency
Impedance ∣Z∣
Phase Φ
Q or D
Voltage and current of DUT
Test voltage (AC) and polarisation (DC)
Range hold status
Labels for multi-function buttons |
| Display size | 4.1' (10.5 cm) | 240 x 128 dots |
| Measurement range | Parameter | Value |
| | Inductance L | 10 nH - 100 H |
| | Capacity C | 1 pF - 100 mF |
| | Resistance R | 10 mΩ - 100 MΩ |
| | Q | 0 - 5000 for display |
| | Phase Φ | -90° / +90° |
| Test frequency | 50 Hz to 2 MHz in 54 predefined steps
or any frequency within the range |
| Accuracy | Up to ± 0.1% ±1 of last digit |
| Total current (MCU board + backlit display board) | without polarization
420 mA | when polarizing DUT
up to 650 mA |
| Power supply | 5 VDC/1 A USB A (not included)
e.g. mobile phone mains charger |
| PC software | Windows, Linux, MacOS |
| Dimensions (Hammond case) | 6.5 x 4.2 x 2.1' (166 x 106 x 53 mm) |
| Weight | 1 kg |
All the necessary components are included for assembly and calibration:
- 2 populated PCBs (pushbuttons, rotary switch, and LCD)
Note: Before shipping the operation of both assembled boards is carefully checked according to a protocol developed by the original designer Jean-Jacques Aubry. - 4 BNC sockets (not assembled)
- 4 jumpers
- Hammond case drilled, machined, with printed front and side panels
- Kelvin cables with clips and 4 plugs
- Mini-USB / USB-A cable
- 24-way flat cable (15 cm)
- Aluminium button for rotary switch
- Full-color printed assembly manual (32 pages)
- Adjustment tool for trimmers
Required tools
- Screwdriver, multimeter, and soldering iron.
Time
Total assembly and calibration time (depending on your skill): 60 to 90 minutes
Downloads
More downloads are available on the Elektor Labs platform.
Elektor Jumpstarter
This product is the result of a successful campaign on our electronics project support platform Elektor Jumpstarter. Readers and interested parties can submit their product ideas and, together with the Elektor development team, a finished product can be brought to market after extensive consideration and many tests. Note that these are always small series production runs, so the products are considered 'Elektor Collector Items'.
