|product name:||NOx detector|
Nitrous oxide (laughing gas) in nitrogen oxides is used as an inhalation anesthetic, and it is not based on industrial poisons. In addition to nitrogen dioxide, the rest can produce nitrogen dioxide when exposed to light, humidity or heat, mainly due to the toxic effects of nitrogen dioxide. Mainly damage the deep respiratory tract. Nitric oxide can still combine with hemoglobin to cause methemoglobinemia. The MLC of a person inhaling nitrogen dioxide for 1 minute is 200 ppm.
There may be no obvious symptoms or eye and upper respiratory tract irritation symptoms when inhaling gas, such as throat discomfort, dry cough, etc. Delayed pulmonary edema and respiratory distress syndrome in adults usually occur after a 6-7 hour incubation period. May be complicated by pneumothorax and mediastinal emphysema. Cough, progressive chest tightness, respiratory distress, and cyanosis occurred after about 2 weeks after the pulmonary edema subsided. A few patients had no obvious symptoms of poisoning after inhaling the gas and the above lesions occurred after 2 weeks. Blood gas analysis showed reduced arterial oxygen pressure. X-ray of the chest showed pulmonary edema or miliary shadows on both lungs. High nitric oxide in nitric gas can cause methemoglobinemia.
Nitrogen Oxygen Detector is an instrument used to detect the leakage or concentration of nitrogen oxide gas. It can choose different parameters according to the same environment. Currently there are two physical methods or electrochemical methods on the market. The principle is to use a gas sensor to detect the presence of nitrogen oxide gas in the environment, and convert the current signal into readable data and output or edit it. Nitrogen oxide gas detectors are generally divided into two types: portable or fixed, also called handheld or online. Different ranges of sensors need to be configured in different environments.
The output of electrochemical gas sensors, infrared gas sensors, and catalytic combustion gas sensors are tiny analog signals. General users cannot directly use these sensors. Therefore, Shenzhen Dongri Energy Technology Co., Ltd. has developed a relatively independent miniature digital intelligent unit. This unit outputs with analog signal 0-5V / 4-20mA and digital serial port signal.
Nitrogen oxide smart sensors are realized by transmitting or receiving test data instructions: calibration, compensation for drift and non-linearity, compensation for zero temperature drift, parameter setting, internal inspection parameter setting, test data output, etc. The use of smart sensors has changed significantly. First, the self-diagnostic function performs a self-test when the power is turned on, and the diagnostic test determines whether the module is faulty. Second, it can be calibrated online based on the use time. The data are compared and collated.
feature of product:
1. Patented standard interface, directly replacing different types of sensors constitutes different types of detectors
2. Humanized design, support electric hot plug
3. Professional selection, imported, compatible with infrared, electrochemical, catalytic, semiconductor and other sensors
4, comes with temperature compensation, factory accurate calibration, no need to recalibrate when in use
5. Simultaneous output of voltage and serial port, convenient for customer debugging and use;
6, the most simplified peripheral circuit, simple production and easy operation
： Technical parameters :
0-1、20、100、500、1000PPM等（可定制量程，详情联系在线客服） Detection range: 0-1, 20, 100, 500, 1000PPM, etc. (customizable range, please contact online customer service for details)
0.1ppm、0.01PPM、1PPM （根据量程和传感器而定） Resolution: 0.1ppm, 0.01PPM, 1PPM (depending on range and sensor)
Display mode: LCD display
Detection method: diffusion type, flow type, pump suction type are optional
Signal output: ① 4-20mA signal: standard 16-bit precision 4-20mA output chip, transmission distance 1Km
② RS485 signal: using standard MODBUS RTU protocol, transmission distance 2Km
③ Voltage signal: 0-5V, 0-10V output, can be set by yourself
④ Pulse signal: also known as frequency signal, adjustable frequency range (optional)
⑤ On-off signal: 2 groups of relays as standard, optional third group of relays, passive contacts of relays
Transmission method: ① Cable transmission: 3 core, 4 core cable, long distance transmission (1-2 km)
② GPRS transmission: can be built-in GPRS module, real-time remote transmission of data without distance limitation (optional)
用户电脑、控制报警器、 PLC、DCS、等 Receiving equipment: user computer, control alarm, PLC, DCS, etc.
Alarm method: live sound and light alarm, external alarm, remote controller alarm, computer data acquisition software alarm, etc.
Alarm settings: Standard configuration of two-level alarm, optional three-level alarm; alarm modes can be set: conventional high-low alarm, interval control alarm
3/4″NPT内螺纹、1/2″NPT内螺纹，同时支持2种电器连接方式 Electrical interface: 3/4 ″ NPT internal thread, 1/2 ″ NPT internal thread, and supports 2 electrical connection methods
压铸铝 +喷砂氧化/氟碳漆，防爆防腐蚀 Housing material: die-cast aluminum + sandblasted oxidation / fluorocarbon paint, explosion-proof and anti-corrosion
24VDC（12～30VDC） Working power: 24VDC (12 ～ 30VDC)
183×143×107mm(L×W×H）1.5Kg(仪器净重) Dimension and weight: 183 × 143 × 107mm (L × W × H) 1.5Kg (net weight of the instrument)