Hioki RM3548-50 Resistance Meter
The RM3548-50 is a precision handheld DC resistance meter that measures extremely low to relatively high resistances (from 0.1 μΩ up to 3.5 MΩ). It uses a four-terminal (Kelvin) method for accurate readings, supports multiple test currents, and offers robust features for field and laboratory use.
Description
The RM3548-50 is engineered for accurate and reliable resistance measurements across a wide span of values, ideal for tasks such as motor winding checks, cable resistance, connector quality inspections, and component testing. It employs a four-wire (Kelvin) measurement technique to eliminate the effects of lead resistance, ensuring high-precision results even at very low resistance levels.
This meter offers ten selectable resistance ranges, covering from a few microohms up to megohms, and can apply test currents up to 1 A for low-resistance ranges, increasing measurement stability and accuracy. It features intuitive operation, with automatic range selection and manual override options. The device can store up to 1,000 measurement data points in internal memory for later recall or download, making it convenient for logging over multiple tests.
Its user interface includes a clear display, status indicators, and a robust housing suited for field environments. Power is supplied via standard batteries, with auto-power-off to conserve energy. The compact and portable format makes the RM3548-50 suitable for both bench and on-site testing, and its accuracy and flexibility make it valuable for electrical maintenance, EV systems, and industrial diagnostics.
Features
- Wide Measurement Range — From 0.1 μΩ to 3.5 MΩ, covering both ultra-low and high resistance values.
- Four-Wire (Kelvin) Measurement — Eliminates the influence of lead and contact resistance from readings.
- High Measurement Current for Low Ranges — Up to 1 A in the lowest resistance ranges for enhanced accuracy.
- Ten Resistance Ranges — Enables optimal scaling across a broad spectrum of measurements.
- High Basic Accuracy — Typical accuracy specification: ±0.02% of reading (plus offset).
- Data Memory Storage — Stores up to 1,000 readings internally for later recall or download.
- Auto and Manual Range Selection — Flexibility to let the instrument choose range or set it manually.
- Portable, Handheld Design — Field-ready with sturdy casing, ergonomics, and battery operation.
- Auto Power-Off — Saves battery life when left idle.
- User-Friendly Interface — Clear display, function indicators, and intuitive operation.
Includes
- Clip Type Lead L2107 ×1
- Temperature Sensor Z2002 ×1
- Protector Z5041 ×1
- LR6 alkaline battery ×8
- Instruction Manual ×1
- USB Cable (A to mini-B) ×1
- Strap ×1
- Spare fuse ×1
