เซนเซอร์ก๊าซไฮโดรเจน 1000d

na1000dii hydrogen monitoring transmitter
1. applicable scope and the use of the product
na1000d ii hydrogen monitoring transmitter is an intrinsically safe explosion-proof type on-line hydrogen leak monitoring product specially developed by henan relations co., ltd. for hydrogen-cooled generator of the power station. 
this product is a standard 4 - 20ma transmitter of two-wire system, which transforms hydrogen content into current signal and output it to the dedicated control device. the detecting unit is a smart sensor module (rds-h2) integrating complete calibration information, which is convenient for maintenance and replacement. the product housing is processed and made by die casting aluminum alloys, with beautiful appearance and firm structure, which can adapt to most of the bad environment. 
the product design, manufacture and verification comply with the following national standard: 
gnaq [2014] no. 161 "twenty five key requirements for preventing power generation grave accident"
gb 12358-2006 "general technical requirements for detection alarming device of environmental gas in operation place"
gb 3836.1-2010 "explosive gases environment- part 1: device general requirement"
gb 3836.4-2010 "explosive gases environment - part 4: device protected by intrinsically safe 'i'"
gb 4208-2008 "enclosure protection class (ip code)"
gb/t 15479-1995 "technical requirements and test methods of insulation resistance and insulating strength for use in industrial process measurement and control instruments"
gb/t 17626.2-2006 "electromagnetic compatibility testing and measurement techniques immunity test for electro-static discharge"
gb/t 17626.3-2006 "electromagnetic compatibility testing and measurement techniques immunity test for radiofrequency electromagnetic fields"
gb/t 17626.4-2008 "electromagnetic compatibility testing and measurement techniques immunity test for electrical fast transient burst"
gb/t 17626.5-2008 "electromagnetic compatibility testing and measurement techniques immunity test for surge (impact)"   




2. main technical parameters

3. structure characteristics and operating principle of the product
the transmitter case is processed and made of die casting aluminum alloys, and the sensor element is of a smart sensor module (rds-h2). since the sensor element is a component with relatively shorter life in the transmitter and it needs to be replaced regularly according to the different use situation and the needs of site environment, for the convenience of maintenance and in order to reduce the waste of manpower and material resources, therefore the interior is modularly designed, and the smart sensor module can be replaced in case of maintenance or repair, this module integrates the complete calibration information.