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620UK-B | Intrinsically Safe Electrical Bond Tester

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 bonding tester is the choice bond tester for countless USAF maintenance wings, while its sibling the 620LK is used by many commercial airliners.

Range 200 mΩ 2 Ω
Nominal Current 100 mA 100 mA
Resolution .01 mΩ .1 mΩ
Accuracy ± .05% of reading ± .05% of reading
Terminal Trident Display 4 1/2 digit LCD
Update 1 reading per 3 seconds Power 4ea AA 1.5 VDC alkaline batteries
Weight 3 lbs. Dimensions 7.69″ x 7.56″ x 3″
Max. Internal Voltage 5 VDC Open Circuit ~5 VDC
Operating Temperature Range -20° to 50° C Storage Temperature Range -40° to 75° C
Temperature Coefficient ± .0025% per 1° C Max. Input Voltage 250 VDC
Ordering Information

Our 620UK-B bonding ohmmeter is available for purchase as a part of an NSN package.
For specific pricing information or to place an order for a 620UK-B meter, please contact us today.

Package Description Price
NSN Package Includes 620UK-B bonding ohmmeter, (630-100) padded case, (630-406S) probes, & U.S. N.I.S.T Calibration Certificate. Request a quote!
Lead/Probe Sets The 620UK-B bonding ohmmeter is compatible with our 630/640/641 Series probe/lead sets and accessories. Please note that not all of our accessories are listed online.
Compatible Accessories
Part Number Description Link Price
630-100 Padded case for Bonding Ohmmeters and Ground Continuity Testers Click Here $95.00
630-406S 5′ spear Kelvin probe set Click Here $265.00
630-304 5′ banana jack calibration lead set Click Here $265.00
630 Series Leads The 620UK-B is compatible with our 630 Series probes and leads Click Here