Whether its' an igniter tester, bonding meter, explosive safety or failsafe ohmmeter for use in an explosive and volatile evironment ( EEX ) , a low resistance micro ohmmeter or any of our products, do you need price and delivery information?  Go to our fast e-mail quote back we will almost immediately get back to you, usually the same day with quotation including accessories and shipping. 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 601ES Explosive Safety DMM - Ideal for Stray Voltage Measurements 

The AMPTEC 601ES Explosive Safety DMM integrates the ultimate in failsafe circuitry to provide AC-DC Voltage measurement ( multiple ranges up to 600 VRMS) ,  AC-DC Current ( from 0 to 2 amperes for the standard version) , and DC resistances ( from 2.0 ohm range to 20 Kohms) . Designed originally for U.S. Military/Defense system programs, (i.e. Air Launched Cruise Missile - Boeing Defense Systems ) to replace the aging and obsolete Dupont 101 Blaster meter. The AMPTEC 601ES Explosive Safety DMM features:  1) a ruggedized, water- resistant main front panel, 2) self-contained DC milliammeter (to independently verify it's USAF Munition Safety Board Approved failsafe "ohms" current source level,   3)  low level fail-safe voltage  (50 mV) signal source , 4) fail-safe signal sources ( to independently verify unit's DMM stray voltage and stray current measurement function), 5)  4 wire Kelvin resistance or 2 wire "ohms" modes at the flip of a switch (silicone rubber boot protected),  6) standard DMM style gold plated 5-way binding posts ( accepts banana jacks, spade lugs, bare wires and other test lead connections, 7) wide viewing angle (tilted) ergonomic display - readable in direct sunlight,  8) separate battery compartment allows user to replace the unit's 4 ea. "AA" batteries without breaking the calibration seal, a shielded Faraday cage design for EMP , ESD protection, noise immunity, and more .

 ALSO SEE THE AMPTEC 620EXV Intrinsically Safe Voltmeter EEx

Ideal for Stray Voltage Measurements

AMPTEC 620A-4 Igniter Tester / Failsafe Ohmmeter

The AMPTEC 620A-4 Igniter Tester (NSN 6625-01-460-1499NM)  is the only digital igniter tester the USAF uses on all it's missile warhead squibs, rocket motor squibs and all general purpose ordinance. The AMPTEC 620A-4 Igniter Tester is a portable, battery powered 4 ½ digit DC FailSafe Ohmmeter that safely measures electrical resistance on a variety of squibs and other explosive elements and components.  It has 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, AIM-9 SIDEWINDER Missiles - Army Standard Missile, Flares, C-130 Fire Bottle Squibs, AGM Maverick series and more). This failsafe igniter tester was specifically designed for ultra-safe resistance testing on explosive devices (i.e. squibs, igniters, flares, detonators). Ranges: 20 ohms (0.001 ohm resolution), 200.0 ohm, 2.0 Kohm, 20.0 Kohm

AMPTEC 620A-4R Water-Resistant Igniter Tester

The AMPTEC 620A-4R Water Resistant Safety Ohmmeter (Igniter Tester) internally is identical to the US Air Force safety board approved AMPTEC 620A-4 Igniter Tester circuitry.  The advantage is that the 620A-4R is ruggedized, and water-resistant.  The 620A-4R case is water proof when closed to a depth of 3 feet. The 620A-4R also floats in water.  Since it has silicon boot seals over all of its switches, it can even be operated outside in direct rain. Ranges: 20 ohm, 200.0 ohm, 2.0 Kohm, 20.0 Kohm

AMPTEC 620BH High Isolation Explosive Safety Igniter Tester

The AMPTEC 620BH High Isolation Explosive Safety Igniter Tester is a portable digital fail-safe ohmmeter which has been specifically designed for ultra-safe resistance testing on explosive devices (i.e. squibs, igniters, flares, detonators, warheads).  The AMPTEC 620EH features the best of both worlds (low level and very high level resistance testing) a low 2.0 ohm fullscale range, 200 ohm, 200.0 Kohm and 20 Megohm resistance range. The 20 Megohm range allows the user to safely perform "isolation tests" on any two test points to determine electrical isolation to at least >20 Megohms. 

AMPTEC 620UK    EU EEX Approved Tester Ohmmeter for Explosive and Volatile Atmospheres

The AMPTEC 620UK Low Resistance Explosive Safety Ohmmeter/Igniter Tester is a portable "Intrinsically Safe" Explosive Safety Digital Ohmmeter.  It was specifically designed (UK Ministry of Defense EEX Approved) for ultra-safe resistance testing on Aircraft bonds/connections and explosive devices (i.e. squibs, igniters, flares, detonators, munitions, warheads) in Volatile and Explosive Atmospheres. Ranges: 2.0 ohm, 20.0 ohm, 200 ohm, 2.0 Kohm, 20.0 Kohm, 200.0 Kohm, and 2.0 Megohm - MIL STD 810, Method 511 Explosive Atmosphere Compliant from 0°C to 50°C.  

The USAF's NEW Bonding Milli-Ohmmeter - AMPTEC 620UKB Explosive Safety Bonding Milli-Ohmmeter for Explosive and Volatile Atmospheres (NSN 6625-01-542-7487)

The AMPTEC 620UKB Explosive Safety Bonding Milli-Ohmmeter is a portable 4 Wire Kelvin "Intrinsically Safe" Explosive Safety Bonding Ohmmeter.  It was specifically selected and is used by the USAF for use on Aircraft bonds in explosive (fuel-air) and volatile environments for ultra-safe low level bond meter resistance testing on aircraft electrical bonds/connections and or metal to metal connections and related chassis grounds (ideal replacement for obsolete, aging and over-priced 3 ½ digit AC Bonding Meters). As a ruggedized milliohmmeter it offers high accuracy (DC), 4 ½ digit resolution, 0.1 milliohm resolution with "No Warm-up" required its ready to use when turned on. NSN 6625-01-542-7487 includes 4-Wire Kelvin probes and carrying case. 

Range (in milliohms): Displays from 0.0 milliohms to 1999.9 milliohms fullscale -  0.5 milliohm accuracy , 0.1 milliohm resolution

MIL STD 810, Method 511, rev F, Explosive and Volatile Atmosphere Compliant from 0°C to 50°C 

AMPTEC 630BN Multipurpose Igniter Tester / Ruggedized Explosive Safety Meter

The AMPTEC 630BN Igniter Tester is approved for use on US NAVY Submarine launched TOMAHAWK Cruise Missile and STANDARD Missile squibs by the NAVAL ORDINANCE CENTER.  Designed for military ordinance programs as a ruggedized Igniter Tester, the AMPTEC 630BN features: a completely water-resistant main operation panel, self-contained DC mill-ammeter and test resistors (to verify 630BN test current levels are safe and resistance ranges accurate), a notched limited access external connection port (see impossible to connect Charger when Measuring discussion below), wide viewing angle (tilted) ergonomic display - readable in direct sunlight, shielded Faraday cage for EMP protection, Electro Static Discharge (ESD) prevention, noise immunity, and more... Ranges: 20.0 ohm, 200.0 ohm, 2.0 Kohm, 200.0 Kohm

AMPTEC 630ES Explosive Safety Igniter Tester

The AMPTEC 630ES Explosive Safety Ohmmeter/Igniter Tester is a ruggedized, water-resistant, feature packed portable digital failsfe ohmmeter which has been specifically designed for ultra-safe resistance testing in the field on explosive devices (i.e. squibs, igniters, flares, detonators).  The 630ES also floats in water.  It is both mechnically and electrically impossible to charge the batteries while measuring and vice versa. Features:  a self-contained DC milli-ammeter and built-in function test resistors (to verify 630ES test current levels are safe and resistance ranges accurate) and a "Safety Lock Out Keyswitch" that disables all operation and shorts the Igniter Tester's measurement wiring from the outside world internally (when the key is removed) and more . . . Since it has silicon boot seals over all of its switches, it can even be operated outside in direct rain. The AMPTEC 630ES series has had its circuitry reviewed and approved by Los Alamos National Laboratories Explosive Safety committee as their HE ( High Explosive) meter. It is also used by NASA and Boeing and most branches of the armed forces for specific military programs (i.e. U.S. Navy Cruise Missile, U.S.A.F Non-nuclear munitions). Ranges: 2.0 ohm, 20.0 ohm, 200 ohm, 200.0 Kohm

AMPTEC 640N Ruggedized Igniter Tester

The AMPTEC 640N Ruggedized Failsafe Igniter Tester is ruggedized, water-resistant, portable and was specifically designed for ultra-safe resistance testing on explosive devices (i.e. Tomahawk Cruise Missile Evolved Sea Sparrow Missile rocket motor squibs, igniters, flares, detonators). The 640N case is water proof when closed to a depth of 3 feet. The 640N also floats in water.  Since it has silicon boot seals over all of its switches, it can even be operated outside in direct rain.  It also features a high level 2.0 MegOhm range to facilitate "isolated" electrical resistance measurements. Ranges: 20.0 ohm, 2000 ohm, 200.0 Kohm, 2.0 Megohm

AMPTEC 640SL Ruggedized Explosive Safety Igniter Tester

AMPTEC 720A Digital Micro-Ohmmeter

Awarded a multi-year USAF contract as the ideal replacement for the Keithley 580 Digital Micro-Ohmmeter, the AMPTEC 720A Micro-Ohmmeter is an accurate and affordable seven range, four wire Kelvin based digital micro-ohmmeter.  Low level resistance measurements can be made from 10 µOhms to 200 KOhms on seven ranges with 4 ½ digit (19999) resolution.  The 720A Digital Micro-ohmmeter is used to test electrical resistance on a wide variety of applications such as motors, transformers, contacts, copper coils, components, bonds and a host of metal to wire connection integrity (i.e. splices) tests. Available options include an RS232C control I/O interface, Autorange, Kelvin mini-probes and gold plated 4 wire Kelvin Clip test leads. Ranges: 200 milliohm, 2.0 ohm, 20.0 ohm, 200 ohm, 20.0 Kohm, 20.0 Kohm - Portable battery powered version is also available.

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