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Quick Details

  • Place of Origin: Shanghai, China (Mainland)
  • Brand Name: Chang Ai
  • Model Number: CI-IN93

Packaging & Delivery

Packaging Details carton
Delivery Time within 15 working days upon receipt of purchase order


CI-IN93 portable trace oxygen analyzer
electrochemical sensor
latest developed product

CI-IN93 portable trace oxygen analyzer


CI-IN93 trace oxygen analyzer is an intelligent analyzer which based on microprocessor. The sensor it uses is fuel cell type oxygen sensor and it can measure 0-25% of oxygen concentration, but it is best to measure oxygen concentration in 0-1000ppm environment.



Oxygen concentration, data and instrument working state are shown on the 128×64 LCD, not easy to damage;

Over pressure protecting function,

Pressure compensation function,

Over range protection function,

Oxygen concentration controlling function,

Latest touch the key technology

Unique magnetic valve protective gas path

Technical Specifications

Sensor:Electrochemical sensor

Accuracy: 0-10ppm  ±5%FS.

      0-100ppm ±3% FS.

      0-1000ppm ±2% FS.

Repeatability: 0-10ppm  ±2.5%FS.

         0-100ppm ±1.5% FS.

         0-1000ppm ±1% FS.

Stability:0-10ppm   ±2.5% F.S/7d  0-100ppm  ±1.5% F.S/7d  0-1000ppm  ±1% F.S/7d


Response time:T90<60S(25°C)

Contact Capacity:  240V.AC,0.2A 

Power supply:200-240V.AC,50/60Hz

Ambient Temp:0-45°C 

Ambient humidity:<80%RH

Sample Gas Temp.:0-45°C

Sample gas pressure: 35-210KPa   

Gas Flow:1-1.5L/min(suggesting 1.2L/min)

Measuring Medium: Anti-H2: N2, H2, He, Ar and carbon dioxide gas;

                  Anti-CO2: N2, H2, He, Ar and gases whose CO2 concentration is higher than 1000ppm and carbon dioxide gas

Sensor Life: 24 months   Instrument Life:>50, 000 hours

Dimension:260.5mm(L)×160mm(W) ×194mm(H) Communication:RS232/RS485



It can be used to measure oxygen concentration in the fields of air separation, gas production, semiconductor Industry, reflow and wave soldering, food production, petrochemical engineering etc.

Order Knowledge


l  Measure range

l  Tested gas pressure & temperature

l  Gas composition & impurities 

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