Map

Resistance meter

REF 145TA8509

These DC resistance testers measure a broad range of resistance values at a high level of precision. It 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.

Features

• 0,02 % basic accuracy, 0,1 μΩ max. resolution, 1 A max. testing current, 1 A max. testing current
• Measure from 0,0 µΩ (testing current 1 A) to 3,5 MΩ
• Easily record up to 1000 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
 

Basis 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

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

Memory storage:  Number of recordable data points: (manual/auto) up to 1000, (interval) up to 6000; Interval: 0,2 to 10,0 s (0,2 s steps) - Acquisition of data from memory: display, USB mass storage (CSV, TXT files)

Power supply: 8 x LR6 (AA) alkaline batteries - Continuous use: 10 hours - rated power consumption: 5 VA

Dimensions (W x H x D) and mass: 192 mm (7.56 in) × 121 mm (4.76 in) × 55 mm (2.17 in), 770 g (27.2 oz)

Accessories: Clip type lead 9287-10 - Temperature sensor - 8 x LR6 alkaline battery - Instruction manual - USB Cable (A-to-mini B type) - Strap - Spare fuse