Technical Parameters

• Gas Detection:Formaldehyde (CH2O), import electrochemical formaldehyde (CH2O) gas sensor
• Detection Range:0～10、20、50、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 Manufactured 00000052 (CMC China Metrology Certification)

• Temperature &Humidity(optional function):temperature detection range:-40 ～ 120℃,humidity detection range:0-100%RH
• Detection Pattern：diffusion, circulation, pumping mode is available，online detection (optional)
• 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℃（Higher temperature and humidity require custom sensors or optional preprocessing systems）
  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：200*170*80mm(L×W×H） 1.2Kg（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””