Description
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.
Specifications
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 |
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