Technical Parameter

• Gas detection:Sulfur dioxide (SO2), imported high-performance electrochemical sulfur dioxide sensor
• Measurement range:0~1, 10, 20, 100, 200, 500, 1000, 2000, 5000, 10000, 50000ppm 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, external 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"