Safety First in Testing Explosive Ordinance Circuits 
The 630ES Explosive Safety Igniter Tester was developed by AMPTEC to advance and modernize ultra-safe testing of explosive ordinance devices associated with most missile and aircraft programs. AMPTEC’s 630ES not only provides greater accuracy and resolution than older, obsolete igniter testers, e.g., Alinco 101BFG or the Simpson 4000ITS, it additionally advances safety features previously unavailable. The Keylock Safety Feature shorts and disconnects the input lead from the internal electronic circuitry. The output and measurement circuitry of the 630ES is certified to limit the output test current to specified maximum values several orders of magnitude below that required to fire or detonate ordinance devices. Fail-Safe analysis has been performed by all branches of the US Military, Nuclear Agencies and foreign defense Ministries. The reports are available for reference purposes.
USAF Munitions Safety Committee Approved
The 630ES Water Resistant Safety Ohmmeter (Igniter Tester) internally is identical to the US Air Force Munitions Safety Board approved AMPTEC 630ES Igniter Tester circuitry. The advantage is the AMPTEC 630ES is a ruggedized, water-resistant, portable digital ohmmeter which have been specifically designed for ultra-safe resistance testing on explosive devices (i.e. squibs, igniters, flares, detonators). The 630ES case is water proof when closed to a depth of 3 feet. The 630ES also floats in water. Since it has silicon boot seals over all of its switches, it can even be operated outside in direct rain.
Keylocked Safety Switch when Connecting or Measuring Squibs and/or Explosive Devices
The Key Locked Safety/Measure Switch has two modes, the shorted safe mode shorts the inputs together and disconnects them from the 630ES. If the user removes the key, the AMPTEC 630ES is locked in "Safe Mode" ( it can’t be accidentally switched to measure mode). When the 630ES user removes the key , the 630ES cannot be made to measure or provide any electrical stimulus to the squib under test, whatsoever. While the key is removed, the 630ES user can connect the test wiring to the explosive device without fear of any stimulus current or voltage actively coming from the 630ES. Only when the key is inserted into the unit's keyswitch can the 630ES be enabled to measure resistance (and only then is it measuring with it's Nuclear Explosive Safety Board Approved measurement circuitry).
 
Physically Impossible to Simultaneoulsy Connect the Charger while Measuring
In addition, the limited access (one use at a time) external connection port on the 630ES also makes it physically impossible to simultaneously connect the AC/DC Charger while measuring with the test leads. Whether charging the NI-CAD batteries or measuring a squib’s resistance, there is only one connection port, it's a case of "either/or" but never both. The 630ES operator can connect the AC/DC Battery Charger to the 630ES limited access connection port for recharging the NI-CAD Batteries thus mechanically blocking access for the measuring sense leads. When measuring, using the sense leads, the same limited access connection port then blocks any battery charger connection.
Link to Safety Approval Test Reports |
Fail Safe Current 8mA Maximum
