Shanghai ChangAi Electronic Science & Technology Co., Ltd.

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GNL-9100 Online Trace Oxygen Analyzer

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Shanghai ChangAi Electronic Science & Technology Co., Ltd.
China China
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Computer Products, Electrical & Electronics

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Item specifics

  • Port: Shanghai
  • Brand Name: CHANGAI
  • Model Number: GNL-9100
  • Place of Origin: Shanghai China (Mainland)
  • Supply Ability: 60 Piece/Pieces per Month
  • Payment Terms: T/T,Western Union,MoneyGram


1. Adopting advanced fuel cell oxygen sensor with single chip technology
2. Long life, high precision and fast response


GNL-9100 oxygen analyzer is the online intelligent measurement instrument, which adopting advanced fuel cell oxygen sensor with single chip technology.



1. Imported fuel cell type 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 it exposures in the air for a long time by out of power or cutting off the gas-route automatically.

4. Concise menu, simple operation

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

6. Automatic data storage in a certain interval time, and browsing data at any time

7. Big screen dot-matrix LCD, showing oxygen concentration, date and time synchronously

8. Setting upper and lower alarm values freely during the measure ranges

9. It can achieve two-way communication by connected to a computer via the standard RS232 or RS485 interface.  


Technical Specifications 

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

Stability:                              Zero drift ≤±2% of FS/7d; Span drift ≤±2% of FS/7d

Response Time:                   90% of final FS reading ≤10 seconds

Repeatability:                      ≤±1%

Sampling Gas Pressure:        0.05MPa≤Inlet pressure≤0.5Mpa

Measure Medium:                 H2, N2, Ar, inert gas, hydrocarbons & mixed gases

Signal Output:                      4-20mA

Contact Capacity:                 125VAC 0.3A, 110VDC 0.3A, 30VDC 1A

Power Supply:                       220±10% VAC, 50/60Hz, power loss≤10VA

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

Warranty:                             12 months analyzer; 12 months sensor

Weight:                                 3kg

Installation Dimension:         133mm×133mm×250mm (W×H×D)



It can be used to measure the trace oxygen concentration in 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, and so on.


Order knowledge                                                                                           

Measure range

Tested gas pressure

Gas composition and impurity

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