Amptec 620EH Intrinsically-Safe EED Tester
The AMPTEC 620EH Low Resistance Explosive Safety Igniter Tester is a portable digital ohmmeter which has been specifically designed for ultra-safe resistance testing on explosive devices (i.e. squibs, igniters, flares, detonators, warheads). The 620EH is primarily for indoor lab use.
Explosive Safety Igniter Tester – High and Low Ohm Ranges
The AMPTEC 620EH features five way gold panel jacks that directly accept wiring, spade lugs and banana jacks (i.e. with 4 wire Kelvin Clips). The AMPTEC 620EH 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.
High and 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 620EH Explosive Safety Igniter Tester. The 620ES offers the following fullscale ranges – 2.0 Ohms, 20 Ohms, 200 Ohms and 2.0 Megohms. 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 several optional Four Wire Kelvin Test Lead sets that eliminate the effects of test lead length resistance and contact resistance errors.
Isolation Testing to 2.0 Megohms
The 2.0 Megohm range on the AMPTEC 620EH provides a relatively high resistance range for determining open circuit or “electrical isolation between any two contact test points or wires” (>2.00 Megohms) status on ordnance wiring and detonators. See the AMPTEC 620BH or 640SL if you need to measure resistance to 20 Megohms.
Incredibly Safer Than a Commercial DMM
Commercial 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 620EH Igniter Tester only measures resistance, it is not a complex multifunction DMM. If the 620EH has an electrical fault, it offers the life saving advantage of failing safe.
Options
- OP100 Hardshell Carrying Case
- 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