Description
Specifications
-
Model: DM-151
-
Resistance Range: 1 micro-ohm to 19.99 kΩ (8 ranges)
-
Display: 3½-digit LED, high stability
- Test Current: 2 Amps. at Lower range(1999 micro-ohm & 19.99 mohm) & Lower (approx. 0.1 A at higher ranges.)
-
Accuracy: ±0.5% of reading, ±0.1% of range
-
Measurement Method: 4-terminal Kelvin connection
-
Zero Adjustment: SET ZERO knob provided
-
Power Supply: AC mains operated
-
Body Size: 8.5 × 4 × 6 inches (compact design)
-
Weight: Under 2.5 kg
-
Standards: IS 694:2010, IS 1554:1988, IS 14255:1995, IS 12444:2020
-
Applications: Wire testing, Conductor Testing, Cable Testing, transformer winding testing, PT testing
-
Country of Origin: Made in India
The CR Meter or Digital Micro-Ohm Meter DM-151 is a high-precision instrument engineered for accurate measurement of very low resistances across a wide range—from micro-ohms to kilo-ohms. Featuring a 3.5-digit bright LED display, it delivers stable, reliable, and repeatable readings, making it ideal for research, production, and quality-control environments.
This conductor Resistance meter is designed with an 8-range measurement system, the DM-151 uses a 4-terminal Kelvin configuration to eliminate lead and contact resistance errors. With test currents up to 2A on lower ranges and built-in lead compensation, the instrument ensures superior precision for demanding low-resistance applications.
Its compact and lightweight build (under 2.5 kg) makes it highly portable, while the SET ZERO knob allows quick and easy calibration. The meter is mains-operated and suitable for NABL-accredited laboratory calibration.
Key Features
-
Highly accurate low-resistance measurement from 1 µΩ to 19.99 kΩ
-
3½-digit LED display for clear and stable readings
-
High test current (2A) on low ranges for improved precision
-
4-terminal Kelvin measurement to eliminate external resistance errors
-
Built-in lead resistance compensation
-
Compact bench model with SET ZERO adjustment
-
Suitable for copper and aluminium wires from 0.1 mm to 6 mm
-
Ideal for transformer winding and PT primary/secondary resistance testing
Applications
-
Measuring low resistance of copper and aluminium wires
-
Testing primary & secondary winding resistance of potential transformers
-
Calculating transformer temperature rise
-
Contact resistance testing in electrical manufacturing
-
Quality control in cable, conductor, and component testing
This digital micro-ohm meter offers accuracy, stability, and ease of use, making it an essential tool for laboratories, cable manufacturers, transformer makers, and electrical testing professionals.
