本質安全型爆炸性安全歐姆表

AMPTEC 620UK-V4歐姆錶是4線式版本。它是一款可攜式EEX數位點火器測試儀，設計用於對爆竹、信號彈、點火線和其它爆炸性裝置進行高度安全性的電阻測試。620UK-V4的故障安全設計使其符合歐盟ATEX指令、本質安全標準EEX-9B-IIC-T4和美國MIL. STD. 810F，以及許多其他國際防禦標準。

Range	2 Ω	20 Ω	200 Ω	2K Ω	20K Ω	200K Ω	2M Ω
Nominal Current	5 mA	5 mA	.5 mA	50 uA	5 uA	.05 uA	50 nA
Failsafe Current	8 mA	8 mA	1.5 mA	150 uA	15 uA	1.5 uA	150 nA
Resolution	100 uΩ	1 mΩ	10 mΩ	100 mΩ	1 Ω	10 Ω	100 Ω
Accuracy	± .02% of reading & ± .05% of range	± .02% of reading & range	± .02% of reading & range	± .02% of reading & range	± .02% of reading & range	± .05% of reading & range	± 1% of reading & ± .2% of range

Display	4 1/2 digit LED	Terminals	Amphenol 4-wire Kelvin
Temperature Coefficient	± .002% per 1° C	Update	3/sec.
Accurate Temperature Range	25° ± 10° C	Operating Temperature Range	-20° to 40° C
Dimensions	7″ x 8″ x 3″	Weight	8 lbs.
Power	1.5V alkaline	Max. Input Voltage	250 VDC
Open Circuit	<1.4 VDC	Max. Failsafe Current	8 mA

The AMPTEC 620UK-V4 Ohmmeter is the 4-Wire version of our 620UK meter. It is a portable EEX digital igniter tester designed for ultra-safe resistance testing on squibs, flares, bridge-wire, and other explosive devices. The 620UK-V4’s failsafe design allows it to comply with the EU ATEX Directive, the Intrinsic Safety Standard EEX-9B-IIC-T4, and USA MIL. STD. 810F, as well as many other international defense standards.

Range	2 Ω	20 Ω	200 Ω	2K Ω	20K Ω	200K Ω	2M Ω
Nominal Current	5 mA	5 mA	.5 mA	50 uA	5 uA	.05 uA	50 nA
Failsafe Current	8 mA	8 mA	1.5 mA	150 uA	15 uA	1.5 uA	150 nA
Resolution	100 uΩ	1 mΩ	10 mΩ	100 mΩ	1 Ω	10 Ω	100 Ω
Accuracy	± .02% of reading & ± .05% of range	± .02% of reading & range	± .02% of reading & range	± .02% of reading & range	± .02% of reading & range	± .05% of reading & range	± 1% of reading & ± .2% of range

Display	4 1/2 digit LED	Terminals	Amphenol 4-wire Kelvin
Temperature Coefficient	± .002% per 1° C	Update	3/sec.
Accurate Temperature Range	25° ± 10° C	Operating Temperature Range	-20° to 40° C
Dimensions	7″ x 8″ x 3″	Weight	8 lbs.
Power	1.5V alkaline	Max. Input Voltage	250 VDC
Open Circuit	<1.4 VDC	Max. Failsafe Current	8 mA