Dimensions(mm)

Technical Parameter: 

* Measuring principle: fuel cell

* Display mode: 320×240 dot matrix color LCD

* Measuring range: 0~10/100/1000PPm O2 (trace) 

                                0~10%/21%/25%/100% O2 (constant)

* Measurement accuracy: 0~1000PPm/10%/21%/25%/100% ≤±1%FS                            

                                          0~100PPm≤±2%FS 

                                          0~10PPm≤±5%FS

* Resolution: 0.1PPm (trace)

                      0.01% (constant)

* Repeatability: ≤±1.0%FS

* Response time: T90≤60S (trace) 

                             T90≤40S (constant)

* Output interface: 4-20mA.DC (non-isolated output, load resistance <1KΩ) 

                              0-10V.DC (non-isolated output, load resistance>10KΩ) 

                              1 channel programmable dry contact type passive alarm output, the maximum capacity of the contact AC220V/2A 

                              2-way instrument status signal output

* Communication method: RS232 (default) or RS485

* Working power supply: AC85~264V 50/60Hz, power consumption <25VA

* Ambient temperature: -10℃~+50℃

* Storage environment humidity: <90%RH, non-condensing

* Working environment humidity: <100%RH, non-condensing

* Sample gas temperature: 0℃~40℃

* Sampling method: inlet type or suction type (please specify when ordering)

* Sample gas flow: 400~600mL/min

* Inlet pressure: Inlet type: 5kPa≤relative pressure≤100kPa (>100kPa is recommended to install a pressure reducing valve) 

Exhaust type: -10kPa≤relative pressure≤5kPa (when <5kPa, please specify the specific negative pressure value when ordering, and decide its gas path structure)

* Exhaust pressure: free emptying (under safe conditions)

* Background gas: N2, inert, acidic, reducing and other gases

* Size: 176mm×251mm×302mm (H×W×D)

* Hole size: 178mm×212mm (H×W), in the case of embedded installation

* Sensor life: > 24 months (under normal use conditions)

* Pneumatic interface: NPT 1/8 female thread

* Meter weight: net weight 5.0kg

* Installation method: embedded / bench-mounted

Instrument Features:

a.  Chinese and English menu switching function, intuitive and convenient operation; 

b.   320×240 graphic dot matrix color LCD display, the display is delicate and clear; 

c.   The imported fuel cell sensor is used, which has the advantages of fast response speed, high measurement Features of strong anti-interference ability; 

d.   Gas circuit blockage alarm and self-protection function, automatically shut down sampling pump in case of gas circuit failure, effectively prolonging the service life of sampling pump and sensor; 

e.   Over-range protection function, when the oxygen concentration is higher than the protection function When the concentration is high, the gas circuit will be automatically cut off to avoid affecting its life due to the long-term exposure of the sensor in an environment with high oxygen concentration; 

f.   Automatic temperature compensation function, reducing the impact of temperature changes on the measurement accuracy; 

g.   The instrument supports multi-point separation Segment linear calibration to meet the accurate measurement of oxygen content in the full range; 

h.   40,000 pieces of historical data are automatically stored, and users can check historical data locally at any time; 

i.   Built-in imported sampling pump (pumping type), reliable and easy to use Long service life;

j.   According to user needs, optional RS232 (default) or RS485 data communication interface can be used for direct one-way or two-way communication with computer or other digital communication equipment.