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720A Micro-Ohmmeter | 7 Range Digital Micro-Ohmmeter

The AMPTEC 720A Micro-Ohmmeter is an affordable 7 range, 4-Wire Kelvin based product that is used to test electrical resistance on a wide variety of applications including winding resistance, contact resistance, and component testing. The 720A micro-ohmmeter has an autorange feature (available with NSN package) and is compatible with an RS232C interface (OP-232). Thanks to the Amptec 720A’s wide-range capabilities, reliability, and ease of use this micro-ohmmeter is used commonly across the globe.


SKU: 720A Category:
Specifications
Range 200 mΩ 2 Ω 20 Ω 200 Ω 2K Ω 20K Ω 200K Ω
Nominal Current 100 mA 100 mA 10 mA 1 mA 100 uA 10 uA 1 uA
Resolution 10 uΩ 100 uΩ 1 mΩ 10 mΩ .1 mΩ 1 Ω 10 Ω
Accuracy ± .02% of reading & ± .05% of range ± .02% of reading & ± .03% of range ± .02% of reading & ± .03% of range ± .02% of reading & ± .03% of range ± .02% of reading & ± .03% of range ± .02% of reading & ± .03% of range ± .02% of reading & ± .03% of range
Display 4 1/2 digit LED Terminal 4-wire Kelvin
Overload Flashes Update 3/sec.
Temperature Coefficient ± .002% per 1° C Operating Temperature Range -20° to 70° C
Dimensions 9″ x 10″ x 3″ Weight 4 lbs.
Power 90 VAC/240 VAC 50-60Hz Max Input Voltage 264 VDC
Open Circuit 1.6 VDC Max Test Current 100 mA
Ordering Information

Our 720A micro-ohmmeter is available for purchase in two separate packages, as listed below.
For specific pricing information or to place an order for a 720A meter, please contact us today.

Package Description Price
NSN Package Includes 720A micro-ohmmeter, (OP-232) RS232C interface, autorange feature, (OP-110) lead pouch, (OP-300) leads, (OP-403) probes, & U.S. N.I.S.T Calibration Certificate. Request a quote!
Commercial Package Includes 720A micro-ohmmeter, (OP-110) lead pouch, (OP-300) leads,(OP-403) probes, & U.S. N.I.S.T Calibration Certificate. Request a quote!
Lead/Probe Sets The 720A micro-ohmmeter is compatible with most 620 Series and all 720A Series probe/lead sets and accessories. Please note that not all of our accessories are listed online.