Amptec 620ES Intrinsically-Safe EED Tester
The AMPTEC 620ES Low Resistance Explosive Safety Igniter Tester is a portable digital fail-safe ohmmeter Igniter Tester which has been specifically designed for ultra-safe resistance testing on explosive devices (i.e. squibs, igniters, flares, detonators, warheads, etc.).
Low Resistance Explosion-Safe Igniter Tester
The AMPTEC 620ES is primarily for indoor laboratory and computer automated (optional) use. Other AMPTEC versions with the same basic circuitry and resistance ranges include the AMPTEC 620ESR and AMPTEC 630ES (Low Resistance Ruggedized Explosion-Safe meter) are ruggedized water proof versions. The AMPTEC 620ES Igniter Tester features five way gold panel jacks that directly accept wiring, spade lugs and banana jacks (i.e. with 4 wire Kelvin Clips). The 620ES has had the unit’s circuitry reviewed and approvals are pending by many U.S. Gov. Safety Boards as well as most branches of the armed forces for specific military programs.
Low Ohm Range – Accuracy and Resolution
A common question is “What does AMPTEC offer to improve the measurement accuracy and resolution with a low resistance value squib/detonator measurement/application?” This lead to the development of the AMPTEC 620ES Explosive Safety Igniter Tester. The AMPTEC 620ES offers the following fullscale ranges – 2.0 Ohms, 20 Ohms, 200 Ohms and 200 Kohms. The 2.0 Ohm fullscale range provides a four-wire Kelvin resistance measurement from 0.0000 ohms to 1.9999 ohms. The 2.0 Ohm range also offers a low (1/10) 0.1 milliohm or 100 microhm resolution. AMPTEC RESEARCH offers an optional Four Wire Kelvin (OP300) Lead set that eliminates the effects of test lead length resistance and contact resistance errors. The 200 Kohm range provides a relatively high resistance range for determining open circuit” (>200 Kohms) status on ordnance wiring and detonators.
Incredibly Safer than a DMM
Multifunction DMM’s have many modes (i.e DC Voltage, AC Voltage, DC current, AC current, frequency, shift keys, capacitance and more) that can accidentally mis-measure igniter circuit resistance. If the DMM has an electrical fault, the igniter circuit may accidentally fire. The 620ES Igniter Tester only measures resistance, it is not a complex multifunction DMM. If the 620ES has an electrical fault, it offers the life saving advantage of failing safe. The lowest Ohm range on most DMMs is 200 Ohms. DMMs also aren’t optimized for squib resistance measurements, most squibs are around 1.0 Ohm and the AMPTEC 620ES Explosive Safety Igniter Tester offers a 2.0 Ohm full scale range.
Options
- OP110 Test Lead Pouch
- OP232 Isolated RS-232 Interface
- OP247 Continuous Power
- OP300 Kelvin Clip Test Leads
- OP302 Banana-Jack Kelvin Test Leads
- OP350 Large Kelvin Clip Test Leads
- OP401 Single-Point Mini Probe Test Leads
- OP403 Kelvin Mini Probe Test Leads
- OP519 Rack Mount Adapter
- OP620-ISO Isolated Analog Interface
- OPDBP Dual Battery Pack