The 10A Micro-Ohmmeter Model 6250 is a rugged, low resistance tester designed for plant maintenance, quality control in manufacturing and field use. Utilizing a four-lead Kelvin method of testing, the Model 6250 is one of the more accurate Micro-Ohmmeters available, with results within 0.05% accuracy.

Resistance measurements are automatically calculated and displayed, taking into account the measurement value, ambient temperature, reference temperature and metal temperature coefficient. Sample temperature can be manually entered by the operator or directly measured by the Model 6250 with an external RTD temperature probe.

The Model 6250 is uniquely designed to conduct tests on both resistive and inductive material, with operator selection directly from the front panel. Three test modes are available and automatically employed based on this selection: Resistive materials (i.e. ground bonding, coatings, contact resistances) are tested with an instantaneous test. Simply press the test button – the reading is taken and the test is concluded.

Inductive materials (i.e. coils, transformers, motor windings) are tested with a continuous test. The test is started and stopped by the operator at the push of a button.

Auto test mode is designed for multiple test points on resistive and/or low inductance material. The test is started at the press of a button. As the operator moves the probe from one point to another, the test is stopped, the results are displayed and a new test is started when the test probes again make contact – no need to press the test button! Residual voltage is measured between tests to ensure proper results. This test mode continues until the operator presses the button to conclude the testing.

The large, easy-to-read display shows the resistance measurement, ambient and reference temperatures, metal type and test method, as well as alarm conditions and memory utilization, all in real time. Previously stored test results can easily be called up for review on the display or sent directly to a printer or remote terminal.

Two programmable alarm set points are available. Each can be either active high or low and will sound an alarm when tripped, further adding to the ease of use by permitting quick Pass/Fail measurements.

External trigger operation is available through the communication port allowing the test to be conducted from a remote location.

• Measure from 0.0001mΩ (0.1μΩ resolution) to 2500.0Ω
• Test current selection of 1mA, 10mA, 100mA, 1A and 10A
• RTD temperature probe to check tested sample (optional)
• Selectable metal types
• Automatic and manual temperature correction
• EMF levels measured and eliminated in measurement
• Two programmable alarm set points
• Stores up to 1500 test results
• Selectable Inductive or Resistive test modes
• Automatic multiple test mode (multiple tests without pressing the test button)
• Large multi-line electroluminescent display
• Local or remote test setup and control
• Direct printout
• Internal rechargeable batteries – conduct up to 5000 10A tests
• Rugged, double insulated waterproof case
• CE Mark
• Aerospace metallic coating resistance measurement
• Winding resistance measurement of motors and transformers
• Bonding verification on earth/ ground systems
• Weld joint integrity verification
• Contact resistance measurement of breakers and switchgear
• Aircraft and rail bonding checks
• Wire to terminal connections and resistance checks
• Battery strap resistance checks
• Cable joint and bus bar connection checks
• Mechanical bond tests

Please contact us for more information on the AEMC 6250

Haefely ECOMPACT4

CA Instruments 5001ix

Voltech PM6000

IFI T4026-40

Teseq NSG437

Solar 2654-1