ZO-12B Power Plant Zirconia Analyzer

1、 Main technical parameters**

1. * * Measurement range**

-Conventional range: 0-25% O ₂ (some models can be extended to 0.05% -20.6% or 0.1% -100%).

-Accuracy level: Level 1 (basic error<± 3% F.S), and the accuracy of some secondary instruments can reach ± 0.2%.

2. * * Environmental adaptability**

-* * Smoke temperature * *:

-Low temperature type (such as ZO-4): ≤ 600 ℃ or 800 ℃ (slightly different definitions from different manufacturers);

-High temperature type (such as ZO-5): 600-1200 ℃ or 800-1300 ℃.

-Working pressure range: -100kPa to+100kPa (some models support ± 50kPa).

3. * * Output and Communication**

-Output signal: 4-20mA (mainstream) or 0-10mA, partially supports RS-485/RS-232 communication.

-Load capacity: Load resistance ≤ 600 Ω when outputting 4-20mA, ≤ 1.2k Ω when outputting 0-10mA.

4. * * Power consumption and response time**

-Power consumption of transmitter: about 8W, average power consumption of heating furnace is 50W (some high-temperature models reach 120W).

-Response time: 90% response takes about 3 seconds.

5. * * Structure and Installation**

-Probe material: High temperature resistant stainless steel (such as 304, 316L) or ceramic, with a protection level of IP65/IP66.

-Insertion depth: 400-1400mm, supports flange installation (common for DN50).

6. * * Other parameters**

-Background potential correction range: -20mV to+20mV.

-Service life: Zirconia tubes are guaranteed to last for six months to one year, with a main lifespan of up to eight years (depending on the type of fuel, such as shorter lifespan under coal-fired conditions).

2、 Application scenarios**

1. * * Industrial combustion equipment**

-Used for monitoring the oxygen content of flue gas in boilers, kilns, heating furnaces and other equipment, achieving low oxygen combustion control, reducing energy consumption and pollutant emissions.

2. * * Power industry**

-Thermal power plants, waste to energy plants, biomass power plants, etc. monitor the combustion efficiency of coal-fired and gas-fired boilers. For example, the ZO-12B model is designed specifically for power plants and is suitable for temperatures ranging from 0 to 700 ℃.

3. * * Chemical and Metallurgical Industry**

-High temperature furnace flue gas monitoring in the petrochemical and steel metallurgy industries supports high temperature (≤ 1300 ℃) and corrosive environments.

4. Environmental protection field**

-Control the oxygen content in the flue gas of garbage incinerators and hazardous waste treatment equipment to ensure compliance with emission standards.

5. * * Other industries**

-Optimization of combustion equipment in industries such as glass manufacturing, pharmaceuticals, and textiles, suitable for various fuel types such as natural gas and fuel oil.

3、 Selection and installation precautions**

1. * * Selection points**

-Select probe materials based on flue gas temperature, pressure, and medium corrosiveness (such as 316L, which has stronger corrosion resistance).

-Determine the installation method (direct insertion, bypass) and the type of secondary instrument (panel mounted, wall mounted, or explosion-proof).

2. * * Installation requirements**

-The probe should be tilted and inserted into the flue to avoid the accumulation of condensed water; The flange connection needs to be sealed, and the signal line needs to be shielded.

-The inner diameter of the bypass flue is ≥ 100mm, and sampling holes are set up to ensure representativeness.