Amptec Research – 620UK-B Intrinsically Safe Electrical Bond Tester

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  • Intrinsically safe ohmmeter.
  • The AMPTEC 620UK-B bonding ohmmeter is an affordable, highly accurate, and intrinsically safe electrical bond tester. This meter is capable of performing bond measurements on a variety of components and metal-to-metal connections. The 620UK-B has been independently UL-913 certified, ensuring quality and safety at each step of manufacturing. Due to its safety certifications and high level of accuracy, the 620UK-B meter is the choice bond tester for countless USAF maintenance wings, while its sibling the 620LK is used by many commercial airliners.

Range, Resolution, Accuracy, and Current Levels

Range 200 mΩ 2 Ω
Nominal Current 100 mA 100 mA
Resolution .01 mΩ .1 mΩ
Accuracy ± .05% of reading & range ± .05% of reading & range


General Specifications

Terminal 5-pin Male Trident Display 4 1/2 digit LCD
Update 1 reading per 3 seconds Power 4ea AA 1.5 VDC alkaline batteries
Weight (Unit Only) 3.2 lbs. Dimensions 7.69″ x 7.56″ x 3″
Max. Internal Voltage 6 VDC Open Circuit ~5 VDC
Operating Temperature Range -20° to 50° C Max. Input Voltage 250 VDC
Temperature Coefficient ± .0025% per 1° C Warranty 365 Days