ZA-3000 Portable trace oxygen analyzer system adopts polarographic diaphragm oxygen electrode sensor,the sensor is a imported long-lived international new sensor with high stability .This instrument adopts four field digital display. It can also be both continuous monitoring and interruption monitoring. It is widely used in sectors of national economies. Such as Industrial gas, shipping storage, chemical equipment, oxygen monitoring and so on.

Technical Data:

Measuring range: 0-30%/0-10ppm/0-100ppm/0-1000ppm/0-10000ppm O2 (optional)

Accuracy:0~10ppm:±1ppm/other: ±3% FS(under atmospheric)

Sensor life: ≥2 years

Display resolution: 0. 1 ppm (automatic-shift)

Response Time: Sensitive element < 5 seconds, the overall unit < 60 seconds

Display: four fields type display (word high 0.6 ")

Minimum detectable quantity: 0.1ppm

Operation environment: Temperature          0…40°C

                    Relative humidity <85%RH

                    Pressure            0.1±0.01 MPa

Working flow: 250 ml/min

Power supply: AC 220±10% V

Power consumption: < 30W

Dimension: 280×150×345(mm)

Principle:

The instrument is composed of the oxygen electrode, the signal acquisition, the integrated amplifier and the display circuit etc. Oxygen electrodes are extremely permeability diaphragm type, the oxygen in the air go through the diaphragm and react to both the cathode and anode, and then the formation of the electronic transfer generate an electric current, the current size is proportional to the gas of oxygen pressure points, the electricity flows through the amplification and conversion to the second instrument shows that the output data is for the concentration of oxygen.

The operation of the instrument:

Preparation:

1. link the gas pipeline, to ensure that the interface is sealing .

2. Instrument panel on the valve is in the" off" state.

3. Ventilation. Regulation of flow so that the gas pressure is less than or equal to about 0.2Mpa, flow rate is about 500ml / min, continuous blow after 3 minutes, please change panel on the valve moved to" test" position.

Notice:

A . before the instrument system in shutdown and blowing apparatus gas path system , the valve must be in the " off" position.

B . The detection process, need to strictly control the system pressure and flow. Otherwise it will affect the accuracy of the detection sensor.