AEMC 6240 [2129.80] Digital Micro-Ohmmeter, 10A, 5µΩ to 400Ω with Kelvin Clips/Probes. The AEMC 6240 10A Micro-Ohmmeter 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 1µΩ to 400Ω with resolutions down to 1µΩ. The Model 6240 has selectable test currents of 10A, 1A, 100mA and 10mA 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. The included DataView software allows you to configure the instrument, temperature-compensate the test results, store data, and print reports.
Performs reliable low resistance measurements from 5µΩ to 400Ω
Six selectable resistance ranges: 4000µΩ, 40mΩ, 400mΩ, 4000mΩ, 40Ω, 400Ω
Four-terminal Kelvin resistance measurement eliminates test lead resistance
Selectable test currents of 10A, 1A, 100mA and 10mA
±0.25% basic accuracy and resolutions down to 1µΩ
Reverse polarity switch on front panel
Overload and input fuse protection
Automatic decimal point and zeroing
Large terminals accept banana plugs and spaded lugs
Rechargeable NiMH battery with internal charger (110/220V)
Easy-to-read multifunctional backlit display
Includes DataView software for data storage, real-time display, analysis and report generation
Manufactured to IEC/EN 61010-1 category III 50V, Pollution Degree 2
Resistance
Measurement Range:
5.0 to 3999µΩ
4.0 to 39.99mΩ
40.0 to 399.9mΩ
400 to 3999mΩ
4.0 to 39.99Ω
40.0 to 399.9Ω
Resolution:
1µΩ
10µΩ
100µΩ
1mΩ
10mΩ
100mΩ
Accuracy: ± 0.25% ± 2ct
Measurement current:
10.2A ± 2% (1)
1.02A ± 2%
102mA ± 2%
102mA ± 2%
10.2mA ± 2% (2)
Open voltage: 4 to 6V
Inductance: 0.5H Max
(1) With nominal value of 10.2A, the measurement current is at least 10A whatever the charge condition of the battery.
(2) The current is 10mA only up to 300Ω. If the battery is low, it can fall to as low as 8mA.
Voltage Measurement Indication
Measurement Range:
0.01 to 3.999mV
4.0 to 39.99mV
40.0 to 399.9mV
0.40 to 3.999V
4.0 to 4.70V
Resolution:
1µV10µV
100µV
1mV
10mV
Current Measurement Indication:
Measurement Range:
5.0 to 39.99mA
40.0 to 399.9mA
0.40 to 3.999A
4.0 to 11.00A
Resolution
10µA
100µA
1mA
10mA
Influences on the Resistance Measurement:
Quantities of Influence:
Range of use:
Temperature: -10 to +55°C
Typical: 0.1% /10°C
Maximum: 0.5% /10 °C + 2cts
Relative Humidity: 10 to 85% RH @ 45°C
Typical: 0.1 %
Maximum: 0.5% + 2cts
Supply Voltage: 5 to 7V
Typical: 2cts
Maximum: 0.2% / V + 2cts
Series Mode Rejection, 50/60Hz*: U (AC) = (R measured x I measurement)
Typical: < 0.2%
Maximum: 2% + 1ct
Common Mode Rejection, 50/60Hz AC: 0 to 50 V AC
Typical: > 80 dB
Maximum: > 60 dB
*Example: If the measured resistance is 1mΩ and the measurement current is 10A, an alternating voltage of 1mV RMS in series with the resistance to be measured will induce an error of not more than 2%.
General Specifications
Storage Memory: 99 tests, supplied with DataView® software for download and reporting