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Home | Products | Igniter Testers | 620MC | Wide Range Digital Failsafe Ohmmeter

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.
 

Description

 

Range20 Ω200 Ω2 KΩ200 KΩ20 MΩ
Nominal Current5 mA0.5 uA50 uA0.5 uA0.010 uA
Failsafe Current8 mA1.5 uA150 uA1.5 uA0.015 uA
Resolution1 mΩ10 mΩ100 mΩ10 Ω1 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
Display4 1/2 digit LEDTerminals4-wire Kelvin
Storage Temperature Range-10° to 70° COperating Temperature Range0° to 50° C
Dimensions9.75″ x 10″ x 3.25″Weight3 lbs.
Power4 ea rechargeable 5AHr NICAD batteriesMax. Input Voltage250 VDC
Open Circuit1.6 VDCMax. Internal Voltage4.8 VDC
Update3 readings/secondTemperature Coefficient± .002% per 1° C
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Range20 Ω200 Ω2 KΩ200 KΩ20 MΩ
Nominal Current5 mA0.5 uA50 uA0.5 uA0.010 uA
Failsafe Current8 mA1.5 uA150 uA1.5 uA0.015 uA
Resolution1 mΩ10 mΩ100 mΩ10 Ω1 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
Display4 1/2 digit LEDTerminals4-wire Kelvin
Storage Temperature Range-10° to 70° COperating Temperature Range0° to 50° C
Dimensions9.75″ x 10″ x 3.25″Weight3 lbs.
Power4 ea rechargeable 5AHr NICAD batteriesMax. Input Voltage250 VDC
Open Circuit1.6 VDCMax. Internal Voltage4.8 VDC
Update3 readings/secondTemperature Coefficient± .002% per 1° C

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