Ultra-Safe Resistance and Circuit Continuity Tester for Squibs, Bombs, Detonators and Other Explosive Devices. Designed and proven to operatesafely in explosive gaseous volitle atmospheres.

AMPTEC 620UK

Intrinsically Safe Ohmmeter - EeX-ib-IIC-T4 British Defense Standard Compliant

 Fail Safe Current 8mA Maximum
 47 Resistance Ranges:2Ω-20Ω-200Ω-2KΩ-20KΩ-200KΩ-2MΩ
 100 micro-ohm Resolution (100mW)
 Battery Powered ~ Portable
2-Wire Resistance Measurement

 Display: 19999 ~ High Accuracy
 Ultra Power Line Isolation Igniter Testing
 Digital Low Resistance Ohmmeter (DLRO)
Lead Resistance Compensation Adjustment
 MIL STD 810, Method 511F Compliant

The 620UK Intrinsically Safe Explosive Ordinance Igniter Tester-Ohmmeter

The 620UK Low Resistance Explosive Safety Ohmmeter/Igniter Tester is a portable Intrinsically Safe Explosive Safety Digital Ohmmeter.  It was specifically designed (and UK Ministry of Defense EEX Approved) for ultra-safe resistance testing around fueling depots (flammable vapours present), Aircraft bonds/connections, refineries and explosive devices (i.e. squibs, igniters, flares, detonators, munitions, warheads) in volatile and explosive atmospheres.  The AMPTEC 620UK Ohmmeter complies with the EU ATEX Directive and is Intrinsic Safety Standard (Eex-ib-IIc-T4) compliant and certified under the ATEX Laboratory Certificate # SIRA03ATEX2076.  The 620UK is Intrinsically Safe certified and can be safely used and "located where flammable gases and vapours of groups IIA, IIB, and IIC are present".  The 620UK Ohmmeter is only certified for use in ambient temperatures in the range of -20°C and +40°C and should not be used outside this temparature range. The AMPTEC 620UK Safety Ohmmeter is also: EMC tested in accordance with British Defence Standard 59-41 and British Defence Standards 66-31, 07-85 and 05-34 (-40° Cold temperature, Damp Heat +°70C, Humidity and Altitude tests) compliant.  The 620UK Ohmmeter provides a reliable and safe means of measuring resistance in explosive and volatile atmospheres.

Link to Safety Approval Test Reports

Intrinsically Safe Ohmmeter - EeX-ib-IIC-T4 British Defense Standard Compliant

The 620UK circuitry has been independently laboratory certified as EEx "Intrinsically Safe" more than just safe in the unlikely event of a worst case component failure.  The AMPTEC 620UK Explosive Safety Ohmmeter output current limiting is still in effect, regardless of component failure by total design insite and compliance to the International Safety Standard of EeX-ib-IIC-T4.

MIL STD 810, Method 511, rev F "Explosive and Volatile Atmosphere" Laboratory Tested
The AMPTEC 620UK Explosive Safety Ohmmeter has been independently laboratory certified as MIL STD 810, Method 511 (revision F) Explosive and Volatile Atmosphere compliant up to +50°C. The AMPTEC 620UK Safety Ohmmeter was remotely operated in an explosive atmospheric chamber ( Air fuel mixed with highly volatile hexane ). While fully operational, the AMPTEC 620UK  test lead contacts were successfully shorted then and disconnected 400 times in the explosive atmospheric fuel air mixture and shown to be fully compliant @ +50°C. A copy of the test report is available ( 620UK MIL STD 810_511 test ) .
U.S. NAVY Ordnance Safety Board ( Indianhead MD) Approved -  For use on Evolved Sea Sparrow Missile Squibs (ESSM )

Ultimate Safety Isolation for Ground Loop Prevention

The 620UK Portable Igniter Tester is battery powered to insure measurement isolation from the power mains to prevent potentially harmful ground current loops.

No Hazardous Mercury Batteries

The 620UK does not use hazardous mercury batteries like those used in the older model igniter testers.  All 620UK Igniter Testers are powered by 4 AA Alkaline batteries that have been officially approved as EEX battery type compliant.  The AMPTEC 620UK Ohmmeter may be used with the Duracell MN1500 mfg. of AA batteries as well as several other approved brands.