Marmonix MEG725 Clamp-On Ground Resistance Tester

Short Description:

The Marmonix MEG725 Clamp-On Ground Resistance Tester combines precision, ease of use, and durability, making it a valuable tool for professionals to ensure the safety and efficiency of electrical grounding systems. Its advanced features and broad application range make it a reliable choice for accurate ground resistance and leakage current measurements.

  • 55 × 32 Jaw Size (mm)
  • 0.010Ω – 0.099Ω Resistance Measurement
  • 0.00mA – 9.95mA Current Measurement
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Buy Marmonix MEG725

The Marmonix MEG725 Clamp-On Ground Resistance Tester is an advanced instrument designed for measuring ground resistance and leakage current in electrical systems. Its clamp-on design allows for non-intrusive testing, making it an essential tool for electrical maintenance and safety inspection professionals.

Key Features

The Marmonix MEG725 offers a wide measurement range, capable of assessing ground resistance from 0.01 ohms to 1200 ohms. This broad range ensures accurate readings across various grounding conditions. Additionally, it can measure leakage currents from 1 milliampere to 30 amperes, providing comprehensive monitoring of electrical systems.

Designed for user convenience, the tester features a large jaw opening of 1.25 inches, accommodating ground rods and conductor cables up to 1000 kcmil. This design facilitates easy application in diverse testing environments. The device also includes a data hold function, allowing users to retain the last reading on the display after disconnecting from the circuit under test, which helps record measurements in the field.

The Marmonix MEG725 is equipped with an automatic power-off feature to conserve battery life, shutting down the device after inactivity. This ensures the tester is ready for use when needed without unexpected battery depletion.

Applications

The Marmonix MEG725 Clamp-On Ground Resistance Tester clamp-on ground resistance tester is suitable for a variety of applications:

  • Electrical Maintenance: Ideal for routine checks of grounding systems in industrial and commercial facilities to ensure safety and compliance.
  • Utility Services: Used by utility companies to assess the integrity of grounding in power distribution networks.
  • Telecommunications: Ensures proper equipment grounding to prevent electrical interference and enhance system reliability.

Marmonix MEG725 Specifications

The Marmonix MEG725 Clamp-On Ground Resistance Tester measures resistance from 0.010 Ω to 1000 Ω and current up to 30.0 A.

Parameter Details
Jaw Size (mm) 55 × 32
Power Source 6VDC (4pcs 5# alkaline batteries)
Working Temperature -10°C to 55°C
Relative Humidity 10% – 90%
LCD Display 4-digit LCD, 47mm (L) × 28.5mm (W)
Meter Size 275mm (L) × 85mm (W) × 56mm (H)
Meter Weight (including batteries) 995g
Protection Level Double insulation
Structural Feature Clamp and jaw type
Range Shift Automatic
External Magnetic Field <40A/m
External Electric Field <1V/m
Single Measuring Time 0.5 second
Measurement Resistance Frequency >1KHz
Maximum Resistance Measurement Resolution 0.001Ω
Resistance Measurement Range 0.01 – 1000Ω
Current Measuring Range 0 – 30A (C type)*
Measured Current Frequency 50/60Hz
Storable Measurement Data 99 groups
Setting Range of Resistance Alarm Critical Value 1 – 199Ω
Setting Range of Current Alarm Critical Value 1 – 499mA (C type)*
Note Items with “*” are limited to C type

Resistance Measurement Ranges and Accuracy

Range (Ω) Resolution (Ω) Accuracy
0.010Ω – 0.099Ω 0.001Ω ±(1%rdg + 0.01Ω)
0.10Ω – 0.99Ω 0.01Ω ±(1%rdg + 0.01Ω)
1.0Ω – 49.9Ω 0.1Ω ±(1%rdg + 0.1Ω)
50.0Ω – 99.5Ω 0.5Ω ±(1.5%rdg + 0.5Ω)
100Ω – 199Ω ±(2%rdg + 1Ω)
200Ω – 395Ω ±(5%rdg + 5Ω)
400Ω – 590Ω 10Ω ±(10%rdg + 10Ω)
600Ω – 1000Ω 20Ω ±(20%rdg + 20Ω)

Current Measurement Ranges and Accuracy

Range (A) Resolution (A) Accuracy
0.00mA – 9.95mA 0.05mA ±(2.5%rdg + 1mA)
10.0mA – 99.0mA 0.1mA ±(2.5%rdg + 5mA)
100mA – 299mA 1mA ±(2.5%rdg + 10mA)
0.30A – 2.99A 0.01A ±(2.5%rdg + 0.1A)
3.0A – 9.9A 0.1A ±(2.5%rdg + 0.3A)
10.0A – 19.9A 0.1A ±(2.5%rdg + 0.5A)
20.0A – 30.0A 0.1A ±(3%rdg + 1A)

Buy the Marmonix MEG725 Clamp-On Ground Resistance Tester for precision, ease of use, and durability. This valuable tool is essential for professionals seeking to ensure the safety and efficiency of electrical grounding systems. Its advanced features and broad application range make it reliable for accurate ground resistance and leakage current measurements.

Resistance Range (Ω), Resolution (Ω), Accuracy

0.010Ω – 0.099Ω

,

0.001Ω

,

±(1%rdg + 0.01Ω)
0.10Ω – 0.99Ω

,

0.01Ω

,

±(1%rdg + 0.01Ω)
1.0Ω – 49.9Ω

,

0.1Ω

,

±(1%rdg + 0.1Ω)
50.0Ω – 99.5Ω

,

0.5Ω

,

±(1.5%rdg + 0.5Ω)
100Ω – 199Ω

,

,

±(2%rdg + 1Ω)
200Ω – 395Ω

,

,

±(5%rdg + 5Ω)
400Ω – 590Ω

,

10Ω

,

±(10%rdg + 10Ω)
600Ω – 1000Ω

,

20Ω

,

±(20%rdg + 20Ω)

Current Range (A), Resolution (A), Accuracy

0.00mA – 9.95mA

,

0.05mA

,

±(2.5%rdg + 1mA)
10.0mA – 99.0mA

,

0.1mA

,

±(2.5%rdg + 5mA)
100mA – 299mA

,

1mA

,

±(2.5%rdg + 10mA)
0.30A – 2.99A

,

0.01A

,

±(2.5%rdg + 0.1A)
3.0A – 9.9A

,

0.1A ±(2.5%rdg + 0.3A)
10.0A – 19.9A

,

0.1A

,

±(2.5%rdg + 0.5A)
20.0A – 30.0A

,

0.1A

,

±(3%rdg + 1A)

Jaw Size (mm)

55 × 32

Power Source

6VDC (4pcs 5# alkaline batteries)

Working Temperature

-10°C to 55°C

LCD Display

4-digit LCD, 47mm (L) × 28.5mm (W)

Dimentions

275mm (L) × 85mm (W) × 56mm (H)

Weight

995g

Protection Level

Double insulation

Structural Feature

Clamp and jaw type

Range Shift

Automatic

External Magnetic Field

<40A/m

Measured Current Frequency

50/60Hz

Storable Measurement Data

99 groups

Setting Range of Resistance Alarm Critical Value

1 – 199Ω

Setting Range of Current Alarm Critical Value

1 – 499mA (C type)

Datasheet

Datasheet

Datasheet

Specifications

Parameter Details
Jaw Size (mm) 55 × 32
Power Source 6VDC (4pcs 5# alkaline batteries)
Working Temperature -10°C to 55°C
Relative Humidity 10% – 90%
LCD Display 4-digit LCD, 47mm (L) × 28.5mm (W)
Meter Size 275mm (L) × 85mm (W) × 56mm (H)
Meter Weight (including batteries) 995g
Protection Level Double insulation
Structural Feature Clamp and jaw type
Range Shift Automatic
External Magnetic Field <40A/m
External Electric Field <1V/m
Single Measuring Time 0.5 second
Measurement Resistance Frequency >1KHz
Maximum Resistance Measurement Resolution 0.001Ω
Resistance Measurement Range 0.01 – 1000Ω
Current Measuring Range 0 – 30A (C type)*
Measured Current Frequency 50/60Hz
Storable Measurement Data 99 groups
Setting Range of Resistance Alarm Critical Value 1 – 199Ω
Setting Range of Current Alarm Critical Value 1 – 499mA (C type)*
Note Items with “*” are limited to C type

Resistance Measurement Ranges and Accuracy

Range (Ω) Resolution (Ω) Accuracy
0.010Ω – 0.099Ω 0.001Ω ±(1%rdg + 0.01Ω)
0.10Ω – 0.99Ω 0.01Ω ±(1%rdg + 0.01Ω)
1.0Ω – 49.9Ω 0.1Ω ±(1%rdg + 0.1Ω)
50.0Ω – 99.5Ω 0.5Ω ±(1.5%rdg + 0.5Ω)
100Ω – 199Ω ±(2%rdg + 1Ω)
200Ω – 395Ω ±(5%rdg + 5Ω)
400Ω – 590Ω 10Ω ±(10%rdg + 10Ω)
600Ω – 1000Ω 20Ω ±(20%rdg + 20Ω)

Current Measurement Ranges and Accuracy

Range (A) Resolution (A) Accuracy
0.00mA – 9.95mA 0.05mA ±(2.5%rdg + 1mA)
10.0mA – 99.0mA 0.1mA ±(2.5%rdg + 5mA)
100mA – 299mA 1mA ±(2.5%rdg + 10mA)
0.30A – 2.99A 0.01A ±(2.5%rdg + 0.1A)
3.0A – 9.9A 0.1A ±(2.5%rdg + 0.3A)
10.0A – 19.9A 0.1A ±(2.5%rdg + 0.5A)
20.0A – 30.0A 0.1A ±(3%rdg + 1A)