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Quick Details

  • Place of Origin: Shanghai, China (Mainland)
  • Brand Name: Chang Ai
  • Model Number: CI-IN191

Packaging & Delivery

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


CI-IN191 oxygen analyzer
flue oxygen sensor
fast response and high accuracy
long service life

CI-IN191 oxygen analyzer



It is combined by gauge outfit and probe, the gauge outfit is based on microprocessor, the probe adopts frequency conversion oxygen analyzer as the measuring unit. The analyzer measure most accurate in 0~25.00% nitrogen- oxygen mixed gases.



u  Intelligence, good stability, high reliability and long calibration cycle;

u  Oxygen Concentration, menu, PUT DATA and instrument working state are shown on the 128×64 LCD, with one toughened glass on the surface of screen to protect the LCD and button;

u  Menu Lock Function, temperature alarm and protection system;

u  RS232/RS485(optional)two communication function

u  The probe can go through correct test under such circumstances as 500°C;

u  Latest touch the key technology.

Technical Specifications

Power Supply:24V.DC,power loss ≤35VA

Sensor:Iron Current

Range:0~25.00%  O2

Accuracy: 0~100ppm ±5%FS;0~1000ppm ±3%FS; 0~1% ±3%FS; 0~25% ±2%FS

Stability:±1% FS./7d

Response Time:T90≤60S(25°C)

Contact Capacity:240V.AC,0.2A(optional)


Sensor Life:18,000 hours(normal use)

Gauge Outfit Life:50,000 hours(normal use)

Power Supply: 24V.DC, power consumption<35VA

Ambient Temperature: 0~50°C

Ambient Temperature: 0~500°C

Gauge outfit size:L×W×H=158(mm)×158(mm)×91(mm)

Installation:Flanged mounting

Measuring Method: Inserting type



It can be used to measure oxygen concentration in detection of oxygen concentration in funnel, high temperature smelter, plants and animals cultivation, vegetables as well as food and processing and storage; naval vessels, subterranean command centre, tunnel, bore, air-raid shelters, city gallery.

Order Knowledge


l  Measure range

l  Tested gas pressure & temperature

l  Gas composition and impurities 

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