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620LM

The AMPTEC 620LM failsafe ohmmeter was specifically designed for ultra-safe testing on squibs, flares, bridge-wire, and other explosive devices. The 620LM meets a wide-range of resistance requirements, and comes standard with an (OP-232) RS232C interface, (OP-247) optically isolated power, and a diode test capability. This product was derived from the USAF Non-Nuclear Munitions Safety Board approved AMPTEC 620A-4 meter – thus creating a product line that is the industry standard in igniter testing.

Specifications
Range Diode 2 Ω 20 Ω 2K Ω 2M Ω
Nominal Current .5 mA 5 mA 5 mA 50 uA 0.01 uA
Failsafe Current 25 mA 8 mA 8 mA 150 uA 0.015 uA
Resolution N/A 100 uΩ 1 uΩ 100 mΩ 1K Ω
Accuracy N/A ± .02% of reading & range ± .02% of reading & range ± .02% of reading & range ± 2% of reading, ± 0.2% of range
Display 4 1/2 digit LED Terminals 4-wire Kelvin
Storage Temperature Range -10° to 70° C Operating Temperature Range 0° to 50° C
Dimensions 9.75″ x 10″ x 3.25″ Weight 3 lbs.
Power 4 ea rechargeable 5AHr NICAD batteries Max. Input Voltage 250 VDC
Open Circuit 1.6 VDC Max. Internal Voltage 4.8 VDC
Update 3 readings/second Temperature Coefficient ± .002% per 1° C
Ordering Information

This product is unavailable for online purchase. For specific pricing information or to place an order for a 620LM failsafe ohmmeter, please contact us today.

Product Description Price
620LM Includes 620LM failsafe ohmmeter, (OP-232) RS232C interface, (OP-247) optically isolated power, diode test capability, (OP-300) lead set, & U.S. N.I.S.T Calibration Certificate. Unavailable online
Lead/Probe Sets The 620LM ohmmeter is compatible with our 620 Series probe/lead sets and accessories.
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