Portable micro-ohmmeter 720A

4-wirefor the aeronautical industry

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. It is available in both battery powered or AC powered versions. 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 can form automated resistance measurements if our RS232C Interface is added to the product is known globally for its reliability and customization. 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 - 100 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 - 0° to 50° C Dimensions - 9″ x 10″ x 3″ - Weight - 4 lbs. Power - 90-240 VAC 50-60 Hz - Max Input Voltage - 264 VDC Open Circuit - ~15 VDC - Max Test Current - 100 mA