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 | 1Ω | ±(2%rdg + 1Ω) | |
200Ω – 395Ω | 5Ω | ±(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) 0.01Ω ,±(1%rdg + 0.01Ω) 0.1Ω ,±(1%rdg + 0.1Ω) 0.5Ω ,±(1.5%rdg + 0.5Ω) 1Ω ,±(2%rdg + 1Ω) 5Ω ,±(5%rdg + 5Ω) 10Ω ,±(10%rdg + 10Ω) 20Ω ,±(20%rdg + 20Ω) |
---|---|
Current Range (A), Resolution (A), Accuracy |
0.00mA – 9.95mA ,0.05mA ,±(2.5%rdg + 1mA) 0.1mA ,±(2.5%rdg + 5mA) 1mA ,±(2.5%rdg + 10mA) 0.01A ,±(2.5%rdg + 0.1A) 0.1A ±(2.5%rdg + 0.3A) 0.1A ,±(2.5%rdg + 0.5A) 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) |
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 | 1Ω | ±(2%rdg + 1Ω) | |
200Ω – 395Ω | 5Ω | ±(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) |