Digital Micro-ohm meter DM-141

Digital Micro-Ohm Meter DM-141 with RT, Temperature and R20 display. Measures 1 µΩ to 1.9999 kΩ with 4.5-digit LED accuracy, 2A test current, 4-terminal Kelvin sensing and SET ZERO control. Ideal for copper wire resistance testing up to 10 mm diameter.

SKU: DM-141

Description

Specifications

  • Model: DM-141
  • Measurement Range: 0.1 µΩ to 1.9999 kΩ (7 decimal ranges)

  • Display: 4½-digit bright LED

  • Displayed Parameters: RT, Temperature, R20 (auto temperature-corrected resistance)

  • Accuracy: ±0.2% of reading, ±0.05% of range

  • Test Current:
    • 2 A at lowest range (1999.9 µΩ)
    • Approx. 0.1 A at higher ranges

  • Temperature Compensation: Automatic R20 calculation (no chart or manual correction required)

  • Operation: Mains operated

  • Measurement Method: 4-terminal Kelvin connection

  • Zero Adjustment: SET ZERO knob provided

  • Dimensions: 8.5” × 4” × 6” (slim compact model)

  • Suitable Wire Diameter: 0.1 mm to 10 mm copper wire

  • Reading Stability: Noise-free, stable output

  • Applications: Wire & cable industry, R&D labs, QC testing


Product Description

The Digital Micro-Ohm Meter DM-141 is an advanced, high-precision low-resistance testing instrument designed specifically for the wire and cable industry as per IS 8130 or IS 10810 Part 5. It measures extremely low resistance values from 1 micro-ohm to 1.9999 kΩ across seven selectable ranges, delivering exceptional accuracy and stability for quality-critical applications.

Built-in RT, Temperature & R20 Display

What makes the DM-141 unique is its integrated RT, Temperature, and R20 display system, eliminating the need for manual correction charts or calculators.
The meter automatically calculates resistance at 20°C (R20), ensuring highly accurate and standardized resistance evaluation.

High Precision 4.5-Digit Measurement

With its 4½-digit LED display and high accuracy, the DM-141 provides precise and stable readings even at extremely low values

Designed for Wire & Cable Manufacturing

The instrument uses a 4-terminal Kelvin arrangement to eliminate lead resistance, making it ideal for measuring copper wire resistance from 0.1 mm to 10 mm diameter. Its stable test current of 2 A at lower ranges ensures high repeatability for fine conductor testing.

Compact, Stable & Easy to Operate

The DM-141 features a slim, lightweight body (8.5” × 4” × 6”) with a SET ZERO control, stable mains operation, and noise-free reading output—making it a perfect choice for production lines, quality control laboratories, and R&D environments.


Applications

  • Copper wire resistance measurement

  • Wire & cable production testing

  • Quality control labs

  • R20 temperature-corrected resistance evaluation

  • Research & development

  • NABL Electro Technical Testing Labs
  • Low-resistance component testing

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