Valhalla Scientific 4314A 4314AF or Space Electronics 101 Igniter Circuit Tetesr. Amptec Research squib meter can be a Low Resistance Ohm meter including NSN 6625-01-542-7487  Igniter Tester. In addition the Failsafe Ohmmeter, DLRO, squib tester, or AMPTEC 620A or valhalla 4314A or alpha the amptec dlro micro-ohmmeter. The amptech, or amptek EEX or Eex and  EEX Intrinsically safe EBW also ebw or eed tester can also be a ETL tester or EED or squib checker  continuity tester. AMPTEC 620A-4 or 620ES, 630ES,

The AMPTEC 620A4 replaces the  620A4R replaces the  Alinco 101BFG,  4000ITS, 4314, ohmmeter, ohmeter , Failsafe Ohmmeter or DLRO or squib tester and explosive safety meter. AMPTEC 620A or 620A4R can replace the 620A-4R or 620ES igniter tester failsafe ohmmeter. In addition the Alinco or NSN 6625-99-833-7949, NSN6625-01-460-1499, cage code 1CRL2.

The AMPTEC 620A-4 Igniter Tester is a portable, battery powered 4 ½ digit DC Ohmmeter that safely measures electrical resistance on a variety of squibs and other explosive elements and components (using 1/100th to 1/1000 less current levels that most meters).  It has also had its circuitry reviewed and approved by U.S.A.F. NonNuclear Munition Safety Board for use on all NonNuclear Munitions (i.e. U.S.A.F. AIM-7 Sparrow Missile Warhead squibs, AIM-9 Sidewinder  Warhead and Rocket Motor squibs - AIM 120 AMRAAM Missiles, Stinger, Army Standard Missile, Flares, C-130 Fire Bottle Squibs, US ARMY TOW Missile and more).  This igniter tester was specifically designed for ultra-safe resistance testing on explosive devices (i.e. squibs, igniters, flares, detonators). The AMPTEC 620A-4 is the only digital igniter tester used by the USAF. Some competitors may claim to have a Munition Safety Board Approval but we are the only company to offer proof in writing that the USAF, US NAVY ORDNANCE SAFETY and MUNITION SAFETY BOARDS have Approved and are actively using the AMPTEC 620A-4 Fail Safe Igniter Circuit Tester. Below are password protected links to get a copy of any of our multiple active Safety Certifications: contact the Sales Dept. at AMPTEC RESEARCH for access. Insist to get a copy from the competitors who claim they sold one of their testers to "a USAF or a NAVY dept. somewhere in the World" that doesn't mean Munition Safety Approved - See for yourself - You be the Judge.

.  .  The AMPTEC 620AA-4 is also the only Igniter Circuit Tester that is MIL STD 810 Method 511 rev F, Explosive and Volatile Atmospheres Certified to +50°C. It is also approved for use on USAF C-130 Transport (for Emergency Engine Fire Control - Fire Bottle Extinguishing Squib System), approved for the USAF C3 AWACS ( Airborne Warning and Control Systems - Fire Supression System). 

It is Munition Safety Board Approved for * every type of EED (Electrically Ignitiated Device and Explosive used by the USAF except for NUCLEAR WARHEADS ( see AMPTEC 640SL). Used for USAF Electrically Activated Explosive Devices Training Center, Replaces the Alinco 101 Igniter Tester, SIMPSON 4000ITS that was used by the USAF ( in 1998) and more .  .  .    

NSN 6625-01-460-1499NM Igniter Tester Package
The AMPTEC 620A-4 Circuit Igniter Tester NSN package includes: a 48" Dual Banana to Alligator Igniter Circuit Tester Lead set (OP290), Battery Charger (OPDC), Operator Mantenance Manual (OPMAN), Dual Banana to 2 pin Circular Plug Adapter (AIM 7 Adapter -OP430), the foam lined transit case also holds all accessories (OP100), and a N.I.S.T. traceability calibration certificate under the NSN 6625-01-460-1499NM.  The accessories described above may also be purchased separately as options.  In addition a single pointed handheld Kelvin Lead probe set (OP401) for testing wiring continuity on items such as recessed sockets/pins on connectorsis also available. For a data sheet of all the accessories, test leads, probes and options that are compatible with the AMPTEC 601ES DMM, 620A-4, 620BH, 620ES, 620GD, 620RK etc select here.

 AMPTEC 620A Igniter Tester is shown with
accessories in the transit case (NSN Package)

Optically Isolated RS232C Interface Option with full remote control

Now any AMPTEC 620A series Igniter Circuit Tester ( AMPTEC 620A-4, 620ES, 620BH, 620RK etc.) can be safely operated remotely with an "optically isolated RS232C interface" option.  The AMPTEC's optically isolated serial interface allows complete remote control (i.e. change to the desired range). Remote reading of the actual igniter (squib) resistance is completely controlled by the serial interface of a PC (i.e. COM2 port). For safety purposes, the optically coupled interface is designed to be electronically isolated (protected) and will withstand up to 5,300 VRMS input or output via the Option "232" isolated serial interface.

In addition the Option "232" RS232C Remote Control Serial interface includes a rear panel Gold Plated 4 Wire Terminal strip (Voltage high, Currrent high, Voltage low, and Current Low) which is wired in parallel with the unit's front panel measurement input jacks.

Alligator Clip Test Leads, Kelvin Clip Leads and Gold Plated Handheld Probes

For a data sheet of all the accessories, test leads, probes and options that are compatible with the AMPTEC 601ES DMM, 620A-4, 620BH, 620ES, 620GD, 620RK etc select here.