The AMPTEC 620LM failsafe ohmmeter was specifically designed for ultra-safe testing on squibs, flares, bridge-wire, and other explosive devices. The 620LM meets a wide-range of resistance requirements, and comes standard with an (OP-232) RS232C interface, (OP-247) optically isolated power, and a diode test capability. 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||2 Ω||20 Ω||2 KΩ||20 KΩ||200 KΩ||20 MΩ||Diode|
|Nominal Current||5 mA||5 mA||50 uA||5 uA||0.5 uA||.01 uA||.5 mA|
|Failsafe Current||8 mA||8 mA||8 mA||8 mA||8 mA||.015 uA||25 mA|
|Resolution||100 uΩ||1 mΩ||0.1 Ω||1 Ω||10 Ω||1K Ω||–|
|Accuracy||± .02% of reading & of range||± .02% of reading & range||± .02% of reading & of range||± .02% of reading & of range||± .02% of reading & of range||± 2% of reading & ± .2% of range||–|
|Display||4 1/2 digit LED||Terminals||4-wire Kelvin|
|Accurate Temperature Range||0° to 50° C||Update||3/sec.|
|Temperature Coefficient||± .002% per 15° C||Operating Temperature Range||0° to 50° C|
|Dimensions||9″ x 10″ x 3″||Weight||8 lbs.|
|Power||4 ea rechargeable 5AH NICAD batteries||Max. Input Voltage||250 VDC|
|Open Circuit||1.6 VDC||Max. Failsafe Current||8 mA|
|620LM||Includes 620LM failsafe ohmmeter, (OP-232) RS232C interface, (OP-247) optically isolated power, diode test capability, & U.S. N.I.S.T Calibration Certificate.||Request a quote!|
|Lead/Probe Sets||The 620LM ohmmeter is compatible with our 620 Series probe/lead sets and accessories.|