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The Yokogawa ZR802G is an intelligent online zirconia oxygen content monitoring instrument from Yokogawa Electric. The following is the specific introduction:
Product Description
ZR802G can accurately measure the concentration of oxygen (O₂) in industrial combustion processes based on the principle that zirconium oxide forms an oxygen potential difference when it generates a difference in oxygen concentration at high temperatures.
1. Measuring range: usually 0-25% O₂. 2.
2. Accuracy: ±1% FS. 3.
3. Operating temperature: 700℃.
4. Output signal: 4-20mA or RS485. 5.
5. Supply voltage: 220VAC.
6. Display: LCD liquid crystal display.
7. Flange: outer diameter 155mm, hole distance 130mm (support customization).
8. Insertion depth: 300-1200mm.
9. Protection tube material: 304 and 316.
10. Protection pipe diameter: 48mm, 51mm, 57mm.
1. Electric power industry: used in power plant boiler combustion process oxygen monitoring, through accurate control of the oxygen content in the combustion process, can improve combustion efficiency, reduce energy consumption, reduce pollutant emissions, to ensure the safe and stable operation of boilers.
2. Chemical industry: In various reactors, cracking furnaces and other equipments in chemical production, real-time monitoring of oxygen concentration helps to control the process and efficiency of chemical reaction, ensure product quality and prevent safety accidents caused by abnormal oxygen content.
3. Iron and steel industry: In the smelting process of blast furnace and converter, monitoring the oxygen content can optimize the combustion process, increase the furnace temperature, promote the reduction reaction of iron, reduce energy consumption and cost, and at the same time, reduce the emission of harmful gases.
4. Glass and ceramic industry: precise control of oxygen content in the kiln can improve the combustion effect, increase the temperature uniformity in the furnace, make the quality of glass and ceramic products more stable and reduce the rate of defective products.
5. Environmental protection field: It can be used to monitor the oxygen content in industrial waste gas emission, provide data support for the operation of waste gas treatment equipment, ensure that the waste gas is discharged in accordance with the standard, and reduce the pollution of the environment.
Series Models and Hot Models:
1. Series Models: The common ones are ZR802S Explosion-proof Zirconia Oxygen Analyzer, ZR22S Explosion-proof Zirconia Oxygen Analyzer, ZOA-300 Oxidation Analyzer, ZR202S-A-040 Zirconia Analyzer, ZR202S-A-070 Zirconia Analyzer, ZR402G-T-C-C-A Zirconia Analyzer, ZR22G Zirconia Analyzer, ZR22G-150 Zirconia Analyzer, ZR22G-070 Zirconia Analyzer and so on.
2. Hot models: from the market feedback, ZR802G and ZR802S belong to the hot models in the series, ZR802G is suitable for oxygen content monitoring in general industrial occasions, while ZR802S is explosion-proof split flange mounting, in-line, with explosion-proof function, more suitable for hazardous places with explosion-proof requirements.
Translated with DeepL.com (free version)
The Yokogawa ZR802G is a model in its own right, with subdivided models underneath. Depending on the configuration options, it can be subdivided into the following models:
**By converter interface**: ZR802G|01|-t - t1/2 NPT, indicating a converter with a t1/2 NPT interface.
**By digital communication method**: ZR802G|02|-t
- ZR802G|02|-h-h HART, indicates that the HART communication protocol is used.
- ZR802G|02|-e-e HART+Modbus TCP, indicates that HART and Modbus TCP communication protocols are supported.
- ZR802G|02|-m-m HART+Modbus RTU, indicates support for HART and Modbus RTU communication protocols.
**Press other options**
- ZR802G|03|-n-n always-n and ZR802G|04|-n-n always-n, the exact meaning is not clear at this time, but it is presumed to be related to some default configurations or specific functions.
- ZR802G|001|/sct/sct indicates an analyzer with a stainless steel label plate.
- ZR802G|005|/rc/rc indicates an analyzer with a ruggedized coating (epoxy + polyurethane coating).
- ZR802G|006|/br/br indicates a wall bracket for ZR402G replacement.
