HIOKI RM3548-50 Handheld Resistance Meter
Benefits of the RM3548-50 Portable Resistance Measurement Device
- High-precision, handheld resistance meter for µΩ to MΩ range (3 mΩ to 3 MΩ).
- 0.02% basic accuracy, 0.1 µΩ max. resolution.
- Rugged and portable design; optional Bluetooth.
HIOKI RM3548-50 Handheld Resistance Meter
The HIOKI RM3548-50 is a high-precision, handheld 4-wire DC milliohm meter for resistance measurements in ranges from µΩ to MΩ. The RM3548-50 is the ideal solution for the testing and maintenance of large equipment, such as the winding and weld resistances in large motors and stators for hybrid and electric vehicles (high voltage connection tests in EVs), cable length testing, and mechanical connection tests.
- High-precision, handheld resistance meter.
- Measure from 0.1 µΩ (testing current 1 A) to 3.5 MΩ.
- 0.02% basic accuracy, 0.1 µΩ max. resolution, 500 nA to 1 A max. testing current.
- Automatic temperature correction ensures accurate results and faster testing.
- Advanced connectivity: Seamlessly integrate data with Excel and a mobile app to manage and analyze data efficiently (wireless adaptor Z3210 required).
- Protections for safe operation: Halts operation and triggers alerts when incorrect voltage inputs are detected.
- Withstand DC voltages of up to 70 V.
- Ideal for EV, aircraft, and motor/transformer maintenance with various probe options.
- Easily record up to 1,000 data points in memory simply by applying the instrument's probes.
- Smoothly capture temperature-rise test data using interval measurement.
- Portable design ideal for maintenance and test of large equipment.
Model Overview
| Model | HIOKI RM3548-50 |
| Resistance range | 3 mΩ (3.5000 mΩ display max., 0.1 µΩ resolution) to 3 MΩ range (3.5000 MΩ display max., 100 Ω resolution), 10 steps; measurement accuracy: ±0.020% rdg. ±0.007% f.s. |
| Testing current | 1 ADC (at 3 mΩ range)...500 nADC (at 3 MΩ range) |
| Open-terminal voltage | 5.5 VDC max. |
| Temperature measurement | -10.0...+99.9°C, accuracy: ±0.50°C (temperature sensor Z2002 and RM3548 combined accuracy) |
| Measurement speed | Fixed |
| Display refresh rate | Without OVC: approx. 100 ms, with OVC: approx. 230 ms |
| Functions | Temperature correction, temperature conversion, offset voltage compensation (OVC), comparator (ABS/REF%), length conversion, judgment sound setting, auto hold, auto power save (APS), averaging, panel store/panel load, USB communication interface (RM3548 internal memory is recognized as a mass storage device when connected to a PC), wireless communication via Bluetooth (Z3210 is necessary) |
| Memory storage | Number of recordable data points: Manual/auto up to 1,000, interval up to 6,000; interval: 0.2...10.0 s (0.2-s steps); acquisition of data from memory: Display, USB mass storage (CSV, TXT files) |
| Power supply | 8x LR6 (AA) Alkaline batteries, or 8x HR6 nickel-metal hydride batteries |
| Dimensions (mm) | 199 x 132 x 60; 890 gg |
Included: HIOKI RM 3548 -50, clip type lead L2107, temperature sensor Z2002, protector Z5041, 8x LR6 Alkaline battery, instruction manual, USB cable (A-to-mini B type), strap, spare fuse
Information on product safety:
Manufacturer:
HIOKI E.E. Corporation, 81 Koizumi Ueda, Nagano 386-1192/JPN
www.hioki.com
(EU branch Germany)
