• 1 to 200A programmable test current
• Resitance range: 1µΩ..10mΩ at 200A to 1µΩ..5Ω at 1A
• Very lightweight: 16.8 lbs. (7.6 Kg)
• Measures circuit breaker contact resistance with safety ground on (with the Dual Ground option)
• Stores test records on-board or on external USB Flash drive
• Rugged, 44-key "QWERTY" membrane keypad
• Windows XP/Vista/7 Analysis Software (included with purchase)

The Auto-Ohm-200 S3 is Vanguard’s fourth generation, microprocessor-based, true DC micro-ohmmeter. It is designed for testing EHV circuit-breaker contact resistances, bushing contact joints, welding joints, or for any low-resistance measuring application. This high current and very lightweight (16.8 lbs/ 7.6 Kg) micro-ohmmeter is designed to meet the IEEE C57.09-1999 (5.15) requirement for testing circuit breaker contact resistance.

Part number AUTO-OHM 200 S3 Auto-Ohm 200 S3 micro-ohmmeter with test cables

Part number DGO Auto-Ohm 200 S3 dual ground option

Part number AUTO-OHM 200 S3 CASE Auto-Ohm 200 S3 shipping case

Part number AUTO-OHM 200 S3 15 FT CABLE Auto-Ohm 200 S3 15-foot cable set

Part number AUTO-OHM 200 S3 30 FT CABLE Auto-Ohm 200 S3 30-foot cable set

Part number AUTO-OHM 200 S3 C-CLAMP SET Auto-Ohm 200 S3 C-clamp set (2 clamps)

Part number AUTO-OHM 200 S3 HAND SPIKE Auto-Ohm 200 S3 hand spike probe (15-foot)