WB2681A — LISUN Insulation Resistance Tester
LISUN WB2681A Insulation Resistance Tester — 25V-1000V DC test voltage, guard-terminal design for accurate volume resistance measurement on components and equipment.
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Overview
The WB2681A Insulation Resistance Tester applies a stabilised DC voltage across the device under test and measures the resultant leakage current to determine insulation resistance, identifying hazards such as insulation aging, moisture absorption and damage. A guard terminal diverts surface leakage current away from the measurement circuit, isolating true volume resistance through the dielectric material.
Key Specifications
Test voltage: 25V to 1000V, selectable steps | Accuracy: ±2% | Measures: Insulation resistance via applied DC voltage and leakage current
Features
- Selectable DC test voltages from 25V to 1000V
- Guard terminal diverts surface leakage for accurate volume resistance measurement
- Programmable test time for polarization index (PI) testing
Applications
Factory motor winding and cable line insulation checks; Electronic component (capacitor, transformer, relay) insulation testing before shipment; R&D insulation reliability testing