Technical Parameters

• Gas Detection： Formaldehyde (CH2O), imported high performance electrochemical formaldehyde sensor
• Detection Range： 0～10、20、50、100、500、1000PPM(optional)
  
• Resolution： 0.01ppm（0～50ppm）；0.1ppm（0～500ppm）；1ppm（0-1000ppm）
  

• Response time： ≤20S（T90）

  Detection Accuracy： ≤±3%（Depending on the specific sensor）

• Linearity Error： ≤±1%

  Zero drift： ≤±1%（F.S/Year）

• Recovery Time： ≤20S

  Scalable Gas Sensor： User can customize 1-6 gas sensors in any combination(optional)

• Repeatability： ≤±1%

  Explosion Proof Sign： CNEx16.0547

• IP Rating： IP66

  Production License： Guangdong system 00001052 (CMC Metrology Certification)

• Temperature and Humidity(Optional)： Temperature detection range:-40 ～ 120℃ Humidity detection range:0-100%RH
• Detection Method： diffusion,circulation,pumping mode is available,online detection
• Installation Method： wall mounting type, pipe type (screw thread size:M40*1.5MM), circulation type
• Signal Output： ① 4-20mA signal : standard 16bit 4-20mA output chip, transmission distance 1Km
  ② RS485 signal: standard MODBUS RTU protocol, transmission distance 2Km
  ③ 0-5V,0-10V output are optional
  ④ 4-20mA+Hart signal is available
  ⑤ 2-3 relays output: Concentration alarm value adjustable contact rating：30VDC 1A/125VAC 0.3A
• Transmission Mode： ① Cable transmission :3-core, 4-core cable, long distance transmission (1-2 km)
  ② TCP/IP transmission: supporting TCP/IP protocol, using optical fiber, network cable, long-distance real-time transmission via intranet and extranet network (optional)
  ③ GPRS transmission: built-in GPRS module, real-time remote transmission of data, not limited by distance (optional)
  ④ Wireless transmission: supporting 433MHz, radio transmission mode, transmission distance 2-10Km, depending on power (optional)
• Data Receiving Device： PC, Gas Alarm Controller, PLC, DCS, Mobile Phone and Tablet Computer is optional
• Alarm Mode： audible and visual alarm, external alarm, remote controller alarm, computer data acquisition software alarm, mobile phone APP notification, SMS alarm are optional
• Alarm Setting： ①standard configuration two-level alarm, three-level alarm is optional
  ②two alarm mode:high alarm & low alarm mode, interval control alarm mode
  ③interval control alarm for temperature sensor
  ④interval control alarm for humidity sensor
• Material： die-cast Aluminum , explosion and corrosion proof
• Working Environment： Operating Temperature: -30℃ ～ 50℃（High temperature and humidity environment need to be customized or optional pretreatment system）
  Relative Humidity: ≤90%RH，Non-condensing
  Pressure： 0 ～ 100Kpa
  Power : 24VDC(12～30VDC)
  Connection： 3/4″NPT,1/2″NPT, two connection modes are supported at the same time
• Dimensions / Weight:： 200*220*80mm(L×W×H） 1.4Kg(Net weight)
• Standard Accessories： User manual, certificate, calibration cover
• Executive Standard： GB3836.1-2010 "Explosive Environment Part 1: general requirements for equipment"
  GB3836.2-2010 "Explosive Environment Part 2: equipment protected by flameproof enclosure ”d””