https://cablematic.com/en/products/vc830l-digital-multimeter-catiii-TM030/
VC830L Digital Multimeter Cat.III
- Digital multimeter for measuring voltage, current, resistance, frequency, transistors and diodeyou. Cat. III.
- DC voltage: 200mV/2V/20V/200V/600V. Accuracy ± (0.5% + 3).
- AC voltage: 200V/600V. Accuracy ± (0.8% + 5).
- Amperage: 2uA/200uA/2mA/20mA/200mA/10A. Accuracy ± (0.8% + 10).
- Resistance: 200/2k/20k/200k/2M Ohms. Accuracy ± (0.8% + 3).
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- Digital multimeter for measuring voltage, current, resistance, frequency, transistors and diodeyou. Cat. III.
- DC voltage: 200mV/2V/20V/200V/600V. Accuracy ± (0.5% + 3).
- AC voltage: 200V/600V. Accuracy ± (0.8% + 5).
- Amperage: 2uA/200uA/2mA/20mA/200mA/10A. Accuracy ± (0.8% + 10).
- Resistance: 200/2k/20k/200k/2M Ohms. Accuracy ± (0.8% + 3).
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Digital multimeter that allows you to check voltage (volts), current (amps), resistance (ohms), frequency (hertz), transistors (hFE) and diode check. It has an easy-to-read LCD viewfinder, selector and connections to terminals via cable. Ideal as a diagnostic tool.
Specifications
- Digital multimeter for measuring voltage, current, resistance, frequency, transistors and diodeyou. Cat. III.
- DC voltage: 200mV/2V/20V/200V/600V. Accuracy ± (0.5% + 3).
- AC voltage: 200V/600V. Accuracy ± (0.8% + 5).
- Amperage: 2uA/200uA/2mA/20mA/200mA/10A. Accuracy ± (0.8% + 10).
- Resistance: 200/2k/20k/200k/2M Ohms. Accuracy ± (0.8% + 3).
- It has test diodes and transistors.
- LCD screen with light and easy to read with 4 digits up to 1999 maximum number.
- Includes ca70 cm wide with terminal connections for easy testing.
- Works with a 9V 6LR61 6LF22 battery (included).
- Gross Weight: 240 g
- Product size (width x depth x height): 7.2 x 3.4 x 14.5 cm
- Number of packages: 1
- Packages size: 16.0 x 11.0 x 5.0 cm
Technical terms
- Impedance
- Types of batteries
Impedance (Z) is the total opposition that a circuit offers to alternating current (AC) flow when a specific voltage is applied.
Unlike simple resistance, impedance is a complex quantity comprising resistance (the real part) and reactance (the imaginary part, representing inductive or capacitive effects). In the frequency domain, impedance is represented as a phasor, accounting for both magnitude and phase shift between voltage and current. In DC circuits, impedance reduces to pure resistance with zero phase angle.
| Parameter | Technical Spec |
|---|---|
| Symbol | Z |
| Unit | Ohm (Ω) |
Impedance management is critical in high-speed hardware design and signal integrity. In modern PCB manufacturing, controlled impedance ensures that high-frequency signals reach their destination without reflections, which is vital for PCIe or DDR5 performance.
Complex Domain Analysis
Mathematical modeling of impedance using the j-operator allows engineers to optimize filter performance and resonance characteristics in electronic systems.
Key Advantages
- Maximum power transfer through impedance matching.
- Minimized signal reflections in high-frequency transmission lines.
- Improved electromagnetic compatibility (EMC).
Note: Impedance is the cornerstone of modern AC circuit theory and high-frequency design.
