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  • Place of Origin: Shanghai, China (Mainland)
  • Brand Name: ChangAi
  • Model Number: GNL-B1A
  • Name: Portable trace oxygen analyzer

Packaging & Delivery

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


Electrochemistry Principle
Portable trace oxygen analyzer
Measure range:0~10/100/1000ppm, 1% O2
Composition:H2,He,Inert, etc

GNL-B1A Portable trace oxygen analyzer


1  this portable trace oxygen analyzer uses advanced electrochemical oxygen sensor, long life, high precision and fast response

2  Measuring oxygen concentration in H2 or deoxidize gas

3  Inner special gas-route protects the sensor when the Portable trace oxygen analyzer exposures in the air for a long time by out of power or cutting off the gas-route automatically.

4  Concise menu, simple operation and portable handle.

5  Automatic temperature compensation, eliminating the impact of environmental temperature.

6  DC power supply, using neatly. Full charging battery can use continually about 8 hours.

7  Inner air pump(option)


Technical Specifications of Portable trace oxygen analyzer                                                                                          

Measure Range:                0-10ppm, 0-100ppm, 0-1000ppm, 0-1% O2

Accuracy:                      ≤±4% in the range of 0-10ppm;

≤±2% in the range of 0-100ppm;

≤±2% in the range of 0-1000ppm;

Display Resolution:              0.01ppm

Response Time:                90% of FS reading ≤ 10 seconds

Measure Medium:               H2, He, hydrocarbons, inert gas, mixed gas & acidic gases

Stability:                        Zero drift ≤±1% of FS/7d

Span drift ≤±1% of FS/7d

Sample Gas Flow:               300-500ml/mim

Repeatability:                   ≤±1%

Sample Gas Pressure:           0.05MPa≤Inlet pressure≤0.5MPa

Recovering Time:                Reducing concentration in the air to 1ppm in 60mins

EX. mark:                       ExiallCT5

Sensor Life:                     24 months at 25°C and 1 atm.

Sensor Principle:                 Electrochemical Sensor

Warranty:                       12 months analyzer; 12 months sensor

Weight:                         4.5kg

Appearance dimension:           255mm×250mm×160mm (L×W×H)


This Portable trace oxygen analyzer can be used to measure the trace oxygen concentration in the fields of nitrogen separation from air, chemical process, magnetic materials such as high temperature sintering furnace gas protection, the electronics industry protective gas, glass & building materials industries, various mixed gases, etc.

Order knowledge                                                                                              

Measure range

Tested gas contains acidic gas (e.g. CO2) or not

Tested gas pressure

Gas composition and impurity

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China (Mainland) | Trading Company
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