Tentech MPK-256 Digital Micro-ohmmeter

Overview

The Tentech MPK-256 is a portable, microprocessor-controlled digital micro-ohmmeter for measuring low resistances in switches, circuit breaker contacts, transformer and motor windings, wire and cable samples, and busbar joints. It uses the Kelvin 4-wire measurement principle to achieve high accuracy by eliminating lead resistance errors, and features USB data output and Android app remote control.

Key Features

• Kelvin-type 4-wire (U/I) measurement method
• Test current range: 1 mA to 10 A
• Resolution: 1 μΩ with readings up to 2,000 Ω
• Basic accuracy: 0.1%
• Alphanumeric display with 4½ digit resolution
• Open circuit output voltage: up to 10 V for faster stabilization
• Measurement circuit protection against voltage peaks from inductances
• USB data output for computer analysis
• Rechargeable internal battery
• Remote control via Android app
• Rugged impact-resistant plastic case with carrying handle

Applications

• Testing switch and circuit breaker contact resistance
• Measuring transformer and motor winding resistances
• Assessing wire and cable sample integrity
• Evaluating busbar joint quality
• Field measurements under severe weather conditions
• Laboratory and on-site diagnostics