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Reviewed in the United States on May 10, 2018
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Customer
Reviewed in the United States on November 29, 2016
LCR Research's LCR-Pro1 Handheld LCR Meter is an excellent, tweezers type device for testing and troubleshooting SMD circuits. It is accurate and super easy to use. By automatically identifying resistors, capacitors, and inductors, it chooses the best properties to display without manual range adjustments.The OLED display is 0.96" which is the largest size and resolution I can find in this form factor. The menu and measurement results are very easy to read. The display can be switched to left or right hand operation and its brightness can be adjusted in menu.The gold-plated tips are replaceable. They are shaped to hold loose SMD components, or test the components already soldered to a PCB. If you’ve ever tried to measure SMD components with a typical multimeter - balancing the probes on the SMD components pins to ensure reliable contact - the value of the LCR-Pro1 tweezer type probes is apparent - with LCR-Pro1 meter I had no problem identifying a few parts mixed together on my workbench.The LCR-Pro1 graphic menu is navigated with a 3-way joystick. The joystick control is very convenient and easy to use. The joystick shortcuts - single or double click – are a fast and intuitive way to change parameters without using a menu.The LCR-Pro1 measures both the real and imaginary impedances and to display the theta angle for resistance measurements, series or parallel equivalent resistance or D for capacitance and series or parallel equivalent resistance or Q for inductance measurements. It has many additional functions like continuity, component sorting, diode polarity and direct current measurement.The LCR-Pro1 saved me a lot of time debugging my latest surface mount electronic design projects. I have lots of tiny 01005 and 0201 SMD components placed close to each other on PCB. Probing with the LCR-Pro1 precise tweezers probes is faster and easier compared LCR meters I’ve used before. One handed operation allows the use of another hand to hold and properly position PCB during in-circuit testing. Test voltage can be selected between 0.20 V, 0.50 V and 1.0 V. for accurate in-circuit measurements without turning on semiconductor junctions I use 0.2V setting. The 1.0V is a best choice to measure some types of ceramic capacitors, such as X5R, whose capacitance varies with applied voltage.Another function I really liked is self-calibration. It can be done simply by shortening and opening tips. After self-calibration, I saw parasitic parameters were reduced significantly. For example, resistance was dropped down below 1 milli-ohm when two tips are closed together. It improves measurement results especially for small resistors, inductors and capacitors.The LCR-Pro1 uses a Li-ion rechargeable battery and can be charged from any USB port. The battery life is pretty good. I used my device around one hour a day for a week and it still shows 80% battery capacity.The LCR-Pro1 is a top quality handheld LCR meter for measuring SMD components. I do not use it all the time, but when I do need it, I can’t imagine using any other tool.
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