Description
Specifications
- Model: DM-141
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Measurement Range: 0.1 µΩ to 1.9999 kΩ (7 decimal ranges)
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Display: 4½-digit bright LED
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Displayed Parameters: RT, Temperature, R20 (auto temperature-corrected resistance)
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Accuracy: ±0.2% of reading, ±0.05% of range
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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)
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Operation: Mains operated
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Measurement Method: 4-terminal Kelvin connection
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Zero Adjustment: SET ZERO knob provided
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Dimensions: 8.5” × 4” × 6” (slim compact model)
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Suitable Wire Diameter: 0.1 mm to 10 mm copper wire
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Reading Stability: Noise-free, stable output
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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
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Copper wire resistance measurement
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Wire & cable production testing
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Quality control labs
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R20 temperature-corrected resistance evaluation
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Research & development
- NABL Electro Technical Testing Labs
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Low-resistance component testing

