The AMPTEC 641N Igniter Tester was designed for military ordnance programs as a ruggedized product that can safely measure resistance on explosive devices such as squibs, flares, and explosive bridge wire. The 641N meter is an impressive 40% lighter and significantly more intelligent than its predecessor the 640N (thanks to the introduction of the self-test function). With multiple safety approvals, a durable/waterproof yet compact case, self-contained DC milliammeter and test resistors, a shielded Faraday cage design, and the new self-test feature, the 641N is among the safest and smartest products of its kind.
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|Range||2 Ω||20 Ω||200 Ω||2K Ω||20K Ω||200K Ω||2M Ω|
|Nominal Current||5 mA||5 mA||.5 mA||50 uA||5 uA||.5 uA||50 nA|
|Failsafe Current||8 mA||8 mA||1.5 uA||150 uA||15 uA||1.5 uA||15 uA|
|Resolution||100 uΩ||1 mΩ||10 mΩ||100 mΩ||1 Ω||10 Ω||100 Ω|
|Accuracy||± .02% of reading & range||± .02% of reading & range||± .02% of reading & range||± .02% of reading & range||± .02% of reading & range||± .02% of reading & range||± 1% of reading, ± 0.2% range|
|Display||4 1/2 digit LED||Terminal||Trident|
|Temperature Coefficient||± .002% per 1°C||Operating Temperature Range||0° to 50° C|
|Dimensions||10.62″ x 9.68″ x 4.87″||Weight||6.5 lbs.|
|Power||4 ea rechargeable 5AH NICAD batteries||Max Input Voltage||250 VDC|
|Open Circuit||1.6 VDC||Max Failsafe Current||8 mA|