? 483mm (19 inch rack) 4U highly embedded chassis, suitable for installation in a complete set of equipment can also be used in laboratories; 
 ? Single compensation measure Line Compensation gas; 
 ? digital adaptive temperature control; 
 ? The temperature sensing elements using seismic anticorrosive structure; 
 ? measure the output of a linear expression; 
 ? Digital temperature compensation; 
 ? Multi-channel optional configuration components: CO, H2,, of O2, CH4, and other multi-gas; 
 ? full Chinese menu operation (English version ordering instructions); 
 Use and range of applications 
 JNYQ-H-31 hydrogen analysis of the digital instrument can be used for continuous automatic analysis of a variety of gas mixtures of hydrogen percentile concentration. Its structure is suitable for installation in complete sets of equipment, with a simple structure, small amount of maintenance and long life. Applicable to thermal power plants, chemical plants and other non-explosion-proof, can also be used for scientific research institutions and laboratories. 
 Typical applications are in 
 A. Power plant: generator hydrogen cooling system to cool the percentage content of hydrogen in the hydrogen purity analysis and measurement of environmental; 
 Two. In fresh gas and recycle gas hydrogen contents of the fertilizer plants: nitrogen ammonia process; 
 3. Steel plants: blast furnace gas dust net gas analysis. 
 Working principle 
 JNYQ-H-31 digital hydrogen analysis of the working principle of the instrument is based on the thermal conductivity of the gas and determine their composition, the measurement of the thermal conductivity of the gas mixture to determine the hydrogen content in the gas mixture. 
 The main technical parameters 
 ◆ Measuring range: 0.00 to 100%; 
 ◆ The main indicators: Zero drift: ≤ ± 2% FS/7d; 
 Span drift: ≤ ± 2% FS/7d; 
 Linearity error: ≤ ± 1.5% FS; 
 ◆ Signal output: (1) measuring the output 
 Large-screen liquid crystal blue, the direct reading of data, information-rich; 
 English in two versions (English version, ordering instructions); 
 The user-friendly menu operation, a simple and neat; 
 Isolated current: (0/4 ~ 20) mA (500Ω); 
 Isolation communication: RS232; 
 (2) state control output (isolated) 
 The upper and lower limits of passive electric shock (adjustable); 
 RS232 communication and information; 
 ◆ working environment: the supply voltage: 220VAC ± 10% 50Hz ± 5%; 
 Ambient temperature: (5 ~ 45) ° C; 
 Allow humidity: ≤ 80% RH; 
 Power: 90W; 
 Weight: 6kg;