https://cablematic.com/en/products/low-resistance-meter-model-tm-508a-TM093/
Low Resistance Meter Model TM-508A
- Large 3.5 "4-digit viewfindercough with a maximum reading of 2000 units.
- Current value blocking key.
- Zero value adjustment control.
- Very low impedance meter with 4 terminal system protected and covered.
- Wide measuring range: 0.1 mOhm to 20 KOhm.
2 yearswarranty
14 daysreturns
- Large 3.5 "4-digit viewfindercough with a maximum reading of 2000 units.
- Current value blocking key.
- Zero value adjustment control.
- Very low impedance meter with 4 terminal system protected and covered.
- Wide measuring range: 0.1 mOhm to 20 KOhm.
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More info
Low resistance digital type meter with large 4-digit LCD viewfinder. It is used to check the insulation of electrical installations. In this way, safe operation with sufficient insulation can be ensured and problems caused by leakage currents can be avoided. See the attached document for more information.
Specifications
- Large 3.5 "4-digit viewfindercough with a maximum reading of 2000 units.
- Current value blocking key.
- Zero value adjustment control.
- Very low impedance meter with 4 terminal system protected and covered.
- Wide measuring range: 0.1 mOhm to 20 KOhm.
- Multiplier based on 6-position selector.
- Size: 160 x 100 x 52 mm.
- It is supplied with quality transport bag.
- Gross Weight: 880 g
- Product size (width x depth x height): 9.5 x 16.0 x 5.0 cm
- Number of packages: 1
- Packages size: 14.0 x 19.0 x 10.5 cm
Technical terms
- Impedance
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.
