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Home | Products | Explosive Bridge Wire Testing | 620EH | Mid Range Failsafe Igniter Tester

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.

 

Description

Range2 Ω20 Ω200 Ω2M Ω
Nominal Current5 mA5 uA50 uA5 uA
Failsafe Current8 mA8 uA1.5 uA15 uA
Resolution100 uΩ1 mΩ10 mΩ100 Ω
Accuracy± .02% of reading & ± .05% of range± .02% of reading & range± .02% of reading & range± 1% of reading & ± .2% of range
Display4 1/2 digit LEDTerminals4-wire Kelvin
Accurate Temperature Range0° to 50° CUpdate3/sec.
Temperature Coefficient± .002% per 15° COperating Temperature Range0° to 50° C
Dimensions9″ x 10″ x 3″Weight8 lbs.
Power4 ea rechargeable 5AH NICAD batteriesMax. Input Voltage250 VDC
Open Circuit1.6 VDCMax. Failsafe Current8 mA

Additional information

Weight5 lbs
Dimensions36 × 36 × 36 in
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  • Specifications
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Range2 Ω20 Ω200 Ω2M Ω
Nominal Current5 mA5 uA50 uA5 uA
Failsafe Current8 mA8 uA1.5 uA15 uA
Resolution100 uΩ1 mΩ10 mΩ100 Ω
Accuracy± .02% of reading & ± .05% of range± .02% of reading & range± .02% of reading & range± 1% of reading & ± .2% of range
Display4 1/2 digit LEDTerminals4-wire Kelvin
Accurate Temperature Range0° to 50° CUpdate3/sec.
Temperature Coefficient± .002% per 15° COperating Temperature Range0° to 50° C
Dimensions9″ x 10″ x 3″Weight8 lbs.
Power4 ea rechargeable 5AH NICAD batteriesMax. Input Voltage250 VDC
Open Circuit1.6 VDCMax. Failsafe Current8 mA

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    Data Sheet Manual