Fluke 1630 Earth Ground Clamp Meter

Earth Ground loop resistance measurements for commercial, industrial, and utility applications

The clamp-on ground testing technique used by the Fluke 1630 simplifies ground loop testing and enables non-intrusive leakage current measurement. The compact and rugged design makes the Fluke 1630 easy to use in small places and harsh environments, while the ‘display hold’ and the continuity testing with an audible alarm function ensures convenience in use. The novel technique means that earth ground loop testing and continuity testing can be completed without breaking the circuit.

Stakeless testing system
The Fluke 1630 uses the Stakeless testing method, which eliminates the need to disconnect parallel ground rods and find suitable locations for placing auxiliary ground stakes. This saves time and enables users such as industrial and utility electricians, and field service electricians and contractors, to perform earth ground loop tests in locations where it is not possible to use other techniques, including inside buildings or on power pylons. With the Stakeless testing method, earth ground stakes are no longer necessary. The Fluke 1630 Earth Ground Clamp is placed around the earth ground rod or the connecting cable. A known voltage is induced by one half of the clamp and the current is measured by the other half. The tester automatically determines the ground loop resistance at this grounding connection.

Earth Ground loop resistance measurements for commercial, industrial, and utility applications

The clamp-on ground testing technique used by the Fluke 1630 simplifies ground loop testing and enables non-intrusive leakage current measurement. The compact and rugged design makes the Fluke 1630 easy to use in small places and harsh environments, while the ‘display hold’ and the continuity testing with an audible alarm function ensures convenience in use. The novel technique means that earth ground loop testing and continuity testing can be completed without breaking the circuit.

Stakeless testing system
The Fluke 1630 uses the Stakeless testing method, which eliminates the need to disconnect parallel ground rods and find suitable locations for placing auxiliary ground stakes. This saves time and enables users such as industrial and utility electricians, and field service electricians and contractors, to perform earth ground loop tests in locations where it is not possible to use other techniques, including inside buildings or on power pylons. With the Stakeless testing method, earth ground stakes are no longer necessary. The Fluke 1630 Earth Ground Clamp is placed around the earth ground rod or the connecting cable. A known voltage is induced by one half of the clamp and the current is measured by the other half. The tester automatically determines the ground loop resistance at this grounding connection.

More Information
Features
  • A wide ground loop resistance range, from 0.025 Ω to1500 Ω, to satisfy all requirements.
  • Large jaw opening of 35 mm (1.38 in) for tests on ground conductors and/or equipotential bus bars.
  • Measurement of ground leakage current, from 0.2 mA to 1000 mA, without needing to disconnect - ideal for system troubleshooting.
  • Wide ac current measurement range from 0.2 A to 30 A allows one instrument for multiple applications.
  • User-defined HI / LO Alarm limits, for rapid measurement evaluation.
  • Handy ‘display hold’ button for capturing readings in hard-to-reach places.
  • Time saving memory function automatically records and stores measured values.
  • Automatic self calibration ensures correct measurement every time.
  • Overload protection: 200 Amp.
  • Carrying case and resistance test loop included.
  • ≥ 8 hours battery life (continuous operation).
Model Fluke Model 1630 Earth Ground Clamp Meter
Specifications

Specifications

Measurement

Range

Accuracy

Ground Loop Resistance (Autorange)

0.025Ω to 0.250Ω

±1.5% of reading ±0.02Ω

0.250Ω to 9.999Ω

±1.5% of reading ±0.05Ω

10.00Ω to 99.99Ω

±2.0% of reading ±0.3Ω

100.0Ω to 199.9Ω

±3.0% of reading ±1.0Ω

200.0Ω to 400.0Ω

±5.0% of reading ±5Ω

400.0Ω to 600.0Ω

±10% of reading ±10Ω

600.0Ω to 1500Ω

±20%

Note: loop resistance with no inductance, external magnetic field <50A/m, external electrical field <1V/m, conductor centered

 

Display

999 digital LC display with special symbols

Range Selection

Auto

Measuring Time

0.5 second

Measuring Frequency

3.333kHz

Overload Indicator

'OL' on display

Low Battery Indication

Display symbol

Operating Error

Refers to the operating temperature range and is guaranteed for two years

Storage Temperature

-20°C to 60°C (-4°F to 140°F)

Reference Temperature

23°C ±5°C (73°F ±9°F)

Storage Humidity

< 75% R.H.

Operating Humidity

< 85% R.H.

 

Safety Specifications

Emission

IEC 1000 4-2, IEC 61326-1 Class B

Immunity

IEC 61000-4-2, 8kV (air) criteria A
IEC 61000-4-3, 3V/m performance criteria A

Safety

300V, CAT III pollution degree 2 IEC 61010-1 and IEC 61010-2-032

Protection

IP30 according to IEC 529/EN 60529

 

General Specifications

Conductor Size

35mm (1.38") approx.

Power Supply

9-volt Alkaline, IEC 6 LR61, battery

Battery Life

> 8 hours continuous operation

Power Consumption

40mA

Dimensions

276mm (L) x 100mm (W) x 47mm (D)

Weight

750g

 

Specifications

Measurement

Range

Accuracy

Ground Loop Resistance (Autorange)

0.025Ω to 0.250Ω

±1.5% of reading ±0.02Ω

0.250Ω to 9.999Ω

±1.5% of reading ±0.05Ω

10.00Ω to 99.99Ω

±2.0% of reading ±0.3Ω

100.0Ω to 199.9Ω

±3.0% of reading ±1.0Ω

200.0Ω to 400.0Ω

±5.0% of reading ±5Ω

400.0Ω to 600.0Ω

±10% of reading ±10Ω

600.0Ω to 1500Ω

±20%

Note: loop resistance with no inductance, external magnetic field <50A/m, external electrical field <1V/m, conductor centered

 

Display

999 digital LC display with special symbols

Range Selection

Auto

Measuring Time

0.5 second

Measuring Frequency

3.333kHz

Overload Indicator

'OL' on display

Low Battery Indication

Display symbol

Operating Error

Refers to the operating temperature range and is guaranteed for two years

Storage Temperature

-20°C to 60°C (-4°F to 140°F)

Reference Temperature

23°C ±5°C (73°F ±9°F)

Storage Humidity

< 75% R.H.

Operating Humidity

< 85% R.H.

 

Safety Specifications

Emission

IEC 1000 4-2, IEC 61326-1 Class B

Immunity

IEC 61000-4-2, 8kV (air) criteria A
IEC 61000-4-3, 3V/m performance criteria A

Safety

300V, CAT III pollution degree 2 IEC 61010-1 and IEC 61010-2-032

Protection

IP30 according to IEC 529/EN 60529

 

General Specifications

Conductor Size

35mm (1.38") approx.

Power Supply

9-volt Alkaline, IEC 6 LR61, battery

Battery Life

> 8 hours continuous operation

Power Consumption

40mA

Dimensions

276mm (L) x 100mm (W) x 47mm (D)

Weight

750g

 
  • A wide ground loop resistance range, from 0.025 Ω to1500 Ω, to satisfy all requirements.
  • Large jaw opening of 35 mm (1.38 in) for tests on ground conductors and/or equipotential bus bars.
  • Measurement of ground leakage current, from 0.2 mA to 1000 mA, without needing to disconnect - ideal for system troubleshooting.
  • Wide ac current measurement range from 0.2 A to 30 A allows one instrument for multiple applications.
  • User-defined HI / LO Alarm limits, for rapid measurement evaluation.
  • Handy ‘display hold’ button for capturing readings in hard-to-reach places.
  • Time saving memory function automatically records and stores measured values.
  • Automatic self calibration ensures correct measurement every time.
  • Overload protection: 200 Amp.
  • Carrying case and resistance test loop included.
  • ≥ 8 hours battery life (continuous operation).