Nitrogen oxide detection alarm-Fornitore globale

2nd Floor, Innovation Building, Seven Star Creative Factory, Baotian 1st Road, Xixiang, Bao'an District, Shenzhen (Fenghuanggang)

Online nitrogen oxide gas alarm

Detecting combustible and toxic gas leaks in industrial sites with sound and light alarms
Full software automatic calibration, sensor up to 6 levels of target point calibration function, ensuring accuracy and linearity of detection, and with data recovery function
Suitable for environmental monitoring, municipal gas, tobacco industry, power industry, pharmaceutical industry, water treatment industry, petrochemical industry, coal, metallurgy, etc

Various on-site precise testing

• Includes technologies such as electrochemical, catalytic combustion, infrared, semiconductor, heat conduction, PID photoionization, etc
• Anti corrosion shell, sturdy and durable, explosion-proof protection
Compliant with the latest national standards and obtained qualifications such as CMC measuring instrument production license and explosion-proof certification
Equipped with an infrared remote control, it can be operated without opening the cover in dangerous situations

On site sound and light alarm

On site concentration display and excessive sound and light alarm
• Intrinsic safety circuit design, explosion-proof certification, obtained multiple software copyright patents
Select original imported sensors from multiple countries, with a wide range of sensors and long lifespans

Technical Parameter

Gas detection:Nitrogen oxides (NOx), imported high-performance electrochemical nitrogen oxide sensors
Measurement range:0-20, 100, 500, 1000, 2000, 5000ppm optional
resolving power:0.01ppm（0～100ppm）； 0.1ppm（0～1000ppm）； 1ppm (above 1000ppm)
Response time:≤ 20 seconds (T90)

Detection accuracy:≤± 3% (depending on the specific sensor)
Linear error:≤±1%

Zero drift:≤± 1% (F.S/year)
Recovery time:≤ 20 seconds

Gas expansion:Supports 1-6 sensors (optional)
Repeatability:≤±1%

Explosion proof certification:CNEx16.0547
Protection level:IP65

Production License:Guangdong System (CMC Metrology Certification)
Temperature and humidity:Optional accessories, temperature detection range: -40~120 ℃, humidity detection range: 0-100% RH
Detection method:Diffusion, circulation, and pump suction options are available
Installation method:Wall mounted, pipe mounted (thread size: M40X1.5mm)、 flow-through
Signal output: ① 4-20mA signal: standard 16 bit precision 4-20mA output chip, transmission distance of 1km
② RS485 signal: using standard MODBUS RTU protocol, transmission distance of 2Km
③ Voltage signal: 0-5V, 0-10V output, customizable
④Switching signal: Standard configuration includes 2 sets of relays, optional third set of relays, passive contacts, capacity 125VAC/0.3A 30VDC/1A
Transmission method: ① Cable transmission: 3-core and 4-core cables for long-distance transmission (1-2 kilometers)
② TCP/IP transmission: Supports TCP/IP protocol, utilizing fiber optic and Ethernet cables for real-time transmission over long distances via internal and external networks (optional)
③ GPRS transmission: Equipped with a built-in GPRS module, real-time remote data transmission is possible without distance limitations (optional)
④ Wireless transmission: Supports 433MHz, wireless radio transmission mode, transmission distance 2-10Km, depending on different power levels (optional)
Receiving device:User computer, control alarm PLC、DCS、 Mobile phones, tablets, and other optional devices
Alarm method:On site sound and light alarm, remote controller alarm, computer data acquisition software alarm, SMS alarm optional
Alarm settings: ① Standard configuration with two-level alarm, optional three-level alarm
② The gas sensor can be set with two alarm modes: conventional high and low alarm, and interval control, which can control the concentration range of the gas
Shell material:Die cast aluminum+sandblasting oxidation/fluorocarbon paint, explosion-proof and corrosion-resistant
Work environment: Working temperature -30~50 ℃ (customized or optional pre-treatment system required for use in higher temperature and humidity environments)
Working humidity ≤ 95% RH, no condensation
Work pressure 90-110Kpa
Working power supply 24VDC (12-30VDC)
Electrical interface with 3/4 "NPT internal thread and 1/2" NPT internal thread, supporting two electrical connection methods simultaneously
Size and weight:196 * 170 * 80mm (L × W × H) 1.5Kg (net weight)
Standard accessories:Instruction manual, certificate of conformity, calibration cover
Execution standards: GB3836.1-2010 Explosive Atmosphere Part 1: General Requirements for Equipment
GB3836.2-2010 Explosive Atmosphere Part 2: Equipment Protected by Flameproof Enclosures "d"