The AMPTEC 620EH failsafe ohmmeter was specifically designed for ultra-safe testing on squibs, flares, bridge-wire, and other explosive devices. The 620EH 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.
Range | 2 Ω | 20 Ω | 200 Ω | 2M Ω |
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Nominal Current | 5 mA | 5 mA | 50 uA | 5 uA |
Failsafe Current | 8 mA | 8 mA | 1.5 uA | 15 uA |
Resolution | 100 uΩ | 1 mΩ | 10 mΩ | 100 Ω |
Accuracy | ± .02% of reading & ± .05% of range | ± .02% of reading & range | ± .02% of reading & range | ± 1% of reading & ± 0.2% of range |
Display | 4 1/2 digit LED | Terminals | 4-wire Kelvin |
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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 |
Product | Description | Price |
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620EH | Includes 620EH failsafe ohmmeter, (OP-300) lead set, (620-DC) battery charger, & U.S. N.I.S.T Calibration Certificate. | Unavailable online |
Lead/Probe Sets | The 620EH ohmmeter is compatible with our 620 Series probe/lead sets and accessories. |
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