The AMPTEC 620MC failsafe ohmmeter was specifically designed for ultra-safe testing on squibs, flares, bridge-wire, and other explosive devices. The 620MC meets wide-range resistance requirements and offers a fail-safe current limiting resistor network circuitry to ensure 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||20 Ω||200 Ω||2 KΩ||200 KΩ||20 MΩ|
|Nominal Current||5 mA||0.5 uA||50 uA||0.5 uA||0.010 uA|
|Failsafe Current||8 mA||1.5 uA||150 uA||1.5 uA||0.015 uA|
|Resolution||1 mΩ||10 mΩ||100 mΩ||10 Ω||1 KΩ|
|Accuracy||± .02% of reading & range||± .02% of reading & range||± .02% of reading & range||± .05% 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|