Hioki Resistance Meter RM3548

Wide Range 3 mΩ to 3 MΩ Portable DC Resistance Tester with 0.1 μΩ Resolution for Equipment Maintenance and Quality Control

Hioki DC resistance testers measure a broad range of resistance values at a high level of precision. The RM3548 is a high-precision, portable resistance tester capable of measuring resistance levels from microohms to megaohms, and is intended primarily for use in testing and maintenance of large equipment, for example, measuring the winding and weld resistances in large motors.

Basic accuracy: 0.02%, Max. resolution: 0.1 μΩ, 1A max. testing current
• Measure from 0.0 µΩ (testing current 1 A) to 3.5 MΩ
• 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 is ideal for maintenance and testing of large equipment.

Basic specifications (Accuracy guaranteed for 1 year)

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 [at 3 mΩ range] 1 A DC to [at 3 MΩ range] 500 nA DC
Open-terminal voltage 5.5 V DC max.
Temperature measurement -10.0 to 99.9°C, accuracy: ±0.50°C (Temperature Sensor Z2002 and RM3548 combined accuracy)
Measurement speed Fixed
Display refresh rate Without OVC: approx. 100ms, With OVC: approx. 230ms
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)
Memory storage Number of recordable data points: (manual/auto) Up to 1,000, (interval) Up to 6,000; Interval: 0.2 to 10.0s (0.2s steps); Acquisition of data from memory: display, USB mass storage (CSV, TXT files)
Power supply LR6 (AA) Alkaline batteries ×8, Continuous use: 10 hours (Under our company’s conditions), Rated power consumption: 5 VA
Dimensions and mass 192 mm (7.56 in) W × 121 mm (4.76 in) H × 55 mm (2.17 in) D mm, 770 g (27.2 oz)
Accessories Clip type lead 9287-10 ×1, Temperature sensor Z2002 ×1, LR6 Alkaline battery ×8, Instruction manual ×1, USB Cable(A-to-mini B type) ×1, Strap ×1, Spare fuse ×1


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