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MASTECH MS2301 Earth Resistance Clamp Meter

The MS2301 is a specialized clamp meter designed for accurate earth resistance and leakage current measurements without auxiliary ground rods. It features a large jaw opening, data logging for up to 99 groups, and a display with 9999 counts for precise readings. The user-friendly design includes auto/manual ranging, data hold, and a buzzer indicator, making it ideal for both field and laboratory use.

Key Features

  • Display with 9999 counts

  • Jaw opening size: 45 mm × 32 mm (1.8" × 1.3")

  • Data logging and recall for 99 groups

  • Alarm threshold setting: 1 to 100 Ω

  • Low battery display

  • Buzzer ON symbol

  • Data hold function

Technical Specifications

Earth Resistance Measurement

Range Resolution Accuracy
0.01 Ω – 0.999 Ω 0.001 Ω ±(1.5% + 0.01 Ω)
1 Ω – 9.99 Ω 0.01 Ω ±(1.5% + 0.3 Ω)
10 Ω – 99.9 Ω 0.1 Ω ±(3.0% + 0.3 Ω)
100 Ω – 199.9 Ω 1 Ω ±(5.0% + 3 Ω)
200 Ω – 400 Ω 5 Ω ±(6.0% + 5 Ω)
400 Ω – 500 Ω 10 Ω ±(10% + 10 Ω)
500 Ω – 1200 Ω 20 Ω Approx. 20%

AC Current Measurement

Range Resolution Accuracy
100 mA 0.1 mA ±(2.5% + 1 mA)
300 mA 0.3 mA ±(2.5% + 2 mA)
1 A 0.001 A ±(2.5% + 0.003 A)
3 A 0.003 A ±(2.5% + 0.01 A)
10 A 0.01 A ±(2.5% + 0.03 A)
20 A 0.03 A ±(2.5% + 0.05 A)

Additional Information

Parameter Specification
Display counts 9999
AC Current Range Up to 20 A
3 Pole & 4 Pole Resistance No
Resistance Range Up to 1200 Ω
Data Hold Yes
Soil Resistivity No
Overrange Indication No
Low Battery Indicator Yes
Backlight No
Data Logging 99 groups
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