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Home | Products | Micro-Ohmmeters | 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. It is available in both battery powered or AC powered versions.
 

Description

Range200 mΩ2 Ω20 Ω200 Ω2K Ω20K Ω200K Ω
Nominal Current100 mA100 mA10 mA1 mA100 uA10 uA1 uA
Resolution10 uΩ100 uΩ1 mΩ10 mΩ100 mΩ1 Ω10 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
Display4 1/2 digit LEDTerminal4-wire Kelvin
OverloadFlashesUpdate3/sec.
Temperature Coefficient± .002% per 1° COperating Temperature Range0° to 50° C
Dimensions9″ x 10″ x 3″Weight4 lbs.
Power90-240 VAC 50-60 HzMax Input Voltage264 VDC
Open Circuit~15 VDCMax Test Current100 mA

Additional information

Weight12 lbs
Features

Mil Std 810-511 Explosive Atmospheres Compliant, NASA Range Safety Approved, NSN, Safety Lockout Keylock Switch

Wide Dynamic Range

Widest Dynamic Range Capability (20Ω – 2.0MΩ)

USAF Approved

USAF Non-nuclear Munition Safety Board Approved for all Ordnance

Contact To Purchase
  • Specifications
  • Ordering Information
  • Downloads
Range200 mΩ2 Ω20 Ω200 Ω2K Ω20K Ω200K Ω
Nominal Current100 mA100 mA10 mA1 mA100 uA10 uA1 uA
Resolution10 uΩ100 uΩ1 mΩ10 mΩ100 mΩ1 Ω10 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
Display4 1/2 digit LEDTerminal4-wire Kelvin
OverloadFlashesUpdate3/sec.
Temperature Coefficient± .002% per 1° COperating Temperature Range0° to 50° C
Dimensions9″ x 10″ x 3″Weight4 lbs.
Power90-240 VAC 50-60 HzMax Input Voltage264 VDC
Open Circuit~15 VDCMax Test Current100 mA

Pricing Request

    Downloads

    Data Sheet Manual