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620BH | Intrinsically Safe Igniter Tester

The AMPTEC 620BH failsafe ohmmeter was specifically designed for ultra-safe testing on squibs, flares, bridge-wire, and other explosive devices. The 620BH meets mid-range resistance requirements and offers a fail-safe current limiting resistor network circuitry to insure test currents cannot exceed 8 mA. 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.

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Range 2 Ω 200 Ω 200K Ω 20M Ω
Nominal Current 5 mA 0.5 mA 0.5 uA 0.05 uA
Failsafe Current 8 mA 1.5 mA 1.5 uA 0.015 uA
Resolution 100 uΩ 10 mΩ 10 Ω 1 KΩ
Accuracy ± .02% of reading & ± .05% of range ± .02% of reading & range ± .05% of reading & range ± 2% of reading & ± 0.2% of range
Display 4 1/2 digit LED Terminals Banana jack binding posts
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 ± 0.1 x accuracy per 1° C
Ordering Information

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

Product Description Price
620BH Includes 620BH failsafe ohmmeter, (OP-300) lead set, (620-DC) battery charger, & U.S. N.I.S.T Calibration Certificate. Request a quote!
Lead/Probe Sets The 620BH ohmmeter is compatible with our 620 Series probe/lead sets and accessories.