Portable megohmmeter 620LM

4-wirefor the aeronautical industry

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. The AMPTEC 620LM Safety Igniter Tester is an ATE system dedicated portable digital ohmmeter specifically designed for ultra-safe resistance testing on squibs, igniters, flares, and other explosive devices. The 620LM provides ultrasafe measurements for THAAD related ordnance. With a built-in diode test capability, autorange, an RS232C Interface, and Optically Isolated Power, the 620LM will provide an effective measurement every time. 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