Micro-Ohmmeter Model 6240

Model 6240 (with leads) - Cat. #2129.80: Includes extra large tool bag, optical USB cable, US 115 V power cord, (2) spare fuses (12.5A), 10 ft Kelvin Clips (10 A - Hippo , Cat. #1017.84) and 10 ft Kelvin Probes (1 A Spring loaded, Cat. #2118.73), NiMH rechargeable battery pack*, and USB thumb drive suppled with DataView® software and a user manual.

*Can be charged during operation

The 10A Micro-Ohmmeter Model 6240 is a rugged, low resistance tester designed for both plant maintenance and field use. Utilizing a four-lead Kelvin method of testing, the Model 6240 Micro-Ohmmeter accurately measures very low resistance within 0.25%.

Resistance measurements are automatically calculated from 5 µΩ to 400 Ω with resolutions down to 1 µΩ. The Model 6240 has selectable test currents of 10 A, 1 A, 100 mA and 10 mA and includes a polarity reversal function. The Model 6240 is designed to conduct tests on both resistive and inductive material. Up to 99 measurements can be stored and printed directly to a printer or from a PC.

DataView® (included) allows you to configure the instrument, temperature-compensate the test results, store data, and print reports.

▶ Learn how to properly connect leads to AEMC® Instruments Micro-Ohmmeters (Models 6240, 6250 & 6255)

Specifications

Specifications

Measurement Range

(5.0 to 3999 ) µΩ

(4.0 to 39.99 ) mΩ

(40.0 ­to 399.9) mΩ

(400 to 3999) mΩ

(4.0 to 39.99)  Ω

(40.0 to 399.9) Ω

Resolution

1 µΩ

10 µΩ

100 µΩ

1 mΩ

10 mΩ

100 mΩ

Accuracy

±(0.25%R + 2ct)

Measurement Current

10.2 A ±2%

1.02 A ±2%

102 mA ±2%

10.2 mA ±2%

Open Voltage

(4 to 6) V

Inductance

0.5 H Max

Voltage Measurement Indication

Measurement Range

(0.01 to 3.999) mV

(4 to 39.99) mV

(40 to 399.9) mV

(0.4 to 3.999) V

(4 to 4.70) V

Resolution

1 µV

10 µV

100 µV

1 mV

10 mV

Current  Measurement Indication

Measurement Range

(5.0 to 39.99) mA

(40.0 to 399.9) mA

(0.4 to 3.999) A

(4 to 11.00) A

Resolution

10 µA

100 µA

1 mA

10 mA

General Specifications

Storage Memory

99 tests, supplied with DataView® software for download and reporting

Automatic Storage of Test Results

Yes

Battery

Rechargeable NIMH battery pack 6V, 8.5Ah.

Battery Life

10 A

≥ 850  tests with a duty cycle of 5 seconds on and 25s off

1 A

≥ 3500 tests with a duty cycle of 5 seconds on and 25s off

100 mA

≥ 4500 tests with a duty cycle of 5 seconds on and 25s off

10 mA

≥ 5000 tests with a duty cycle of 5 seconds on and 25s off

In standby mode

Battery life 4 to 6 months

Dimensions (L x W x H)

(10.70 x 9.76 x 7.18) in (272 x 248 x 182) mm

Weight

10 lbs (4.5 kg)

Operating Temperature

(14 to 131) °F (-10 to 55) °C  & (10 to 85) % RH

Storage Temperature (without battery)

(-40 to 158) °F (-40 to 70) °C & (10 to 90) % RH

Altitude Operating

2000 m

IP Rating

IP 54 per IEC 60529 cover closed

Safety

IEC/EN 61010-1 category III 50V, Pollution Degree 2

User Manuals

Model 6240

Model 6240 - Español (CA France version)

Model 6240 - French (CA France version)

Spring-Loaded 25 A Test Probes - EN, ES, FR

Micro-Ohmmeter Models 6240 / 6255 / 6250 - Verification via a ZERO Test - English

Battery Recharge Time / Rechargeable NiMH Notice

Kelvin Probe Lead Connection for Micro-Ohmmeters

Tiempo de recarga de las baterías / Aviso de NiMH recargable

Datasheets

Model 6240 - English

Modelo 6240 - Español

Brochures

Micro-Ohmmeter Brochure

Ground Resistance Testers Brochure

Grounding Traffic Control Signal Equipment Simplified

AEMC® Instruments Product Line Brochure

Rent Now

Comparison Charts

Micro-Ohmmeter Comparison Chart

Micro-Ohmmeter Comparison Chart - Español

Software

Application Notes

Forms

Stored Measurement Results Form

Micro-Ohmmeter Measurement Result Form

Calculators

Slope Method Calculation - Automated way of calculating the S electrode placement when using the slope method - Excel

Three Measurement Method

Fall-of-Potential Plot

Cálculo por el método de la pendiente – Forma automatizada de calcular la ubicación del electrodo S al usar el método de la pendiente - en una hoja de cálculo de Excel

Technical Bulletins

Watts Current Issue 05

Watts Current Issue 01

Troubleshooting

Applications - Graphic Illustrations

Manufacturing and Data Center Maintenance Testing

Power Distribution (Switchgear)

Power Distribution (Motor)

Transformer Acceptance Maintenance Testing

Data Centers