https://cablematic.com/en/products/digital-insulation-tester-model-tm-509-TM092/
Digital Insulation Tester Model TM-509
- Large 3.5 "4-digit viewfinder with readoutto a maximum of 2000 units.
- Keys to block current value and maximum value.
- Continuity test
- High insulation resistance measurements with manual range selection: 250V from 0.1M ~ 200M Ohm, 500V from 0.1M ~ 200M Ohm and 1000V from 1M ~ 2000M Ohm.
- Measures DC voltage (0V ~ 1000V) and AC voltage (0V ~ 750V).
2 yearswarranty
14 daysreturns
- Large 3.5 "4-digit viewfinder with readoutto a maximum of 2000 units.
- Keys to block current value and maximum value.
- Continuity test
- High insulation resistance measurements with manual range selection: 250V from 0.1M ~ 200M Ohm, 500V from 0.1M ~ 200M Ohm and 1000V from 1M ~ 2000M Ohm.
- Measures DC voltage (0V ~ 1000V) and AC voltage (0V ~ 750V).
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More info
Digital isolation 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 viewfinder with readoutto a maximum of 2000 units.
- Keys to block current value and maximum value.
- Continuity test
- High insulation resistance measurements with manual range selection: 250V from 0.1M ~ 200M Ohm, 500V from 0.1M ~ 200M Ohm and 1000V from 1M ~ 2000M Ohm.
- Measures DC voltage (0V ~ 1000V) and AC voltage (0V ~ 750V).
- It complies with the CAT III 1000V standard.
- Additional functions as low battery indicatorand overload.
- Size: 160 x 100 x 52 mm.
- It is supplied with quality transport bag.
- Gross Weight: 860 g
- Number of packages: 1
Technical terms
- Impedance
- Battery charging cycles
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.
