Zirconium Oxide Oxygen Analyzer
The Single Channel Zirconia O2 Analyzer System delivers accurate O2 and humidity measurements utilizing Yokogawa’s zirconia oxygen analyzers for combustion monitoring and control, helping industries achieve lowered CO2, SOx, and NOx emissions. The oxygen analyzer system provides minimized downtime and simplified maintenance with advanced diagnostics, an intuitive design and technician training.
Zirconia Oxygen Probe System
The Zirconia Oxygen Analyzer System includes the ZR402G converter and ZR22 detector and is capable of measuring oxygen concentration or humidity in non-combustion applications with a single analyzer. Its LCD touch screen provides easy operation, and digital communications are standard, allowing for remote configuration and troubleshooting.
ZR402G Converter
The ZR402G converter is equipped with an LCD touch screen featuring an intuitive operating system with a variety of display modes and error codes with built-in error details. Other standard functions include measurement, calculation, and self-test maintenance functions to enable easier operation and troubleshooting.
ZR22G/ZR22S Detector
The ZR22G separate-type detector is an in-situ probe that uses a high-reliability zirconia sensor. The zirconia cell and heater assembly can be replaced in the field, reducing maintenance costs. The ZR22S separate-type detector for explosion-proof applications is also available and offers the following explosion-proof certifications:
- ATEX
- FM
- CSA
Features
Accurate Maintenance Scheduling with Advanced Diagnostics
Predictive diagnostics from the analyzer simplify troubleshooting and provide technicians with the necessary data to create a minimal calibration schedule.
Reduced Downtime with a Robust Cell Design
The probe's cell is designed with a large measurement surface area, making it less susceptible to contaminants, which allows for longer periods between cell replacements and calibrations.
Increased Measurement Availability with an Intuitive Design
The probe uses a long-life, high-reliability zirconia sensor and has an intuitive design that enables easy troubleshooting and repair in the field, minimizing downtime and reducing costs since technicians only need to replace the needed parts.
Increased Process Uptime with Customized Training Resources
Yokogawa’s knowledgeable representatives and support technicians provide operation and repair training for all Yokogawa products both in the factory and in the field. Training ranges from basic operation to advanced troubleshooting, helping you achieve more efficient operations and simplified maintenance.
Details
| Measurement object | Oxygen concentration in combustion exhaust gas and mixed gas |
|---|---|
| Measurement system | Zirconium oxide sensor |
| Measurement range | 0.01 to 100 vol% O2 |
| Output signal | 4 to 20 mA DC, two points (ZR402G) (maximum load resistance 550Ω) |
| Setting range | Any setting in the range of 0 - 5 vol%O2 to 0 - 100 vol%O2 (in 1 vol% O2), or partial range |
| Digital communication (HART) | 250 to 550Ω, depending on number of field devices connected to the loop (multi-drop mode) |
| Sample gas pressure | -5 to +250 kPa (Pressure compensation option necessary over +5 kPa) |
| Sample gas temperature | 0 to 700℃ (Probe only) 700 to 1871℃ (with 0.15m probe with JIS 5K 32 FF flange and ZR22P High Temperature Probe Adapter) |
| Probe length | 0.15, 0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0, 3.6, 4.2, 4.8, 5.4 m |
| Contact output | Four points (one is fail-safe, normally open) |
| Contact input | Two points |
| Calibration | Method; zero/span calibration Calibration mode; automatic, semi-automatic and manual (with an LCD touchscreen) |
| Construction of detector (ZR22G) | Heater and thermocouple replaceable construction. Non-explosion-proof. Equivalent to NEMA4X/IP66 |
| Construction of converter (ZR402G) | Non-explosion-proof, outdoor installation, equivalent to NEMA4X/IP66 |
| Ambient Temperature | Probe (ZR22G): -20 to 150℃ Converter (ZR402G): -20 to 55℃) |
| Reference Gas System |
Instrument Air (preferred): 50 kPa (200 kPa with check valve) + the pressure inside the furnace; Approx. 1 Nl/min consumption Natural convection |
| Power supply | 85 to 264 V AC; 45 to 66 Hz |
| Measurement object | Oxygen concentration in combustion exhaust gas and mixed gas |
|---|---|
| Measurement system | Zirconium oxide sensor |
| Explosion-proof Approval | ZR22S-A (ATEX); EEx d IIB + H2, ZR22S-B (FM); Class I, Division1, Groups B, C and D ZR22S-C (CSA); Class I, Division1, Groups B, C and D ZR22S-D (IECEx); Ex d IIB + H2, T2 |
| Measurement range | 0.01 to 100 vol% O2 |
| Output signal | 4 to 20 mA DC, two points (ZR402G) (maximum load resistance 550Ω) |
| Setting range | Any setting in the range of 0 - 5 vol%O2 to 0 - 100 vol%O2 (in 1 vol% O2), or partial range |
| Digital communication (HART) | 250 to 550Ω, depending on number of field devices connected to the loop (multi-drop mode) |
| Sample gas pressure | ±5kPa For 0.15m probe, -0.5 to +5 kPa. No pressure fluctuation in the furnace should be allowed |
| Sample gas temperature | 0 to 700℃ 700 to 1871℃ (with 0.15m probe with JIS 5K 32 FF flange and ZR22P High Temperature Probe Adapter (certain options only)) |
| Probe length | 0.15, 0.4, 0.7, 1.0, 1.5, 2.0 m |
| Contact output | Four points (one is fail-safe, normally open) |
| Contact input | Two points |
| Calibration | Method; zero/span calibration Calibration mode; automatic, semi-automatic and manual (with an LCD touchscreen) |
| Construction of detector (ZR22S) | Heater and thermocouple replaceable construction, equivalent to NEMA4X/IP66 |
| Construction of converter (ZR402G) | Non-explosion-proof, outdoor installation, equivalent to NEMA4X/IP66 |
| Ambient Temperature | -20 to +60℃ (-20 to +150℃ on the terminal box surface) (ZR22S) -20 to +55℃ (ZR402G) |
| Reference Gas System | Instrument Air: 50 kPa + the pressure inside the furnace; Approx. 1Nl/min consumption |
| Wiring Connection | ATEX; M20 by 1.5 mm or 1/2 NPT select one type (4 pieces) FM; 1/2 NPT (4 pieces) CSA; 1/2 NPT (4 pieces) IECEx; M20 by 1.5 mm or 1/2 NPT select one type (4 pieces) |
| Power supply | 85 to 264 V AC; 45 to 66 Hz |
| Repeatability | ±0.5% Maximum value of set range |
|---|---|
| Linearity | ±1% Maximum value of set range |
| Drift | ±2% Maximum value of set range/month |
| Response time (T90) | 90% response within 5 sec (60 sec for explosion-proof ZR22S) |
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WZ-H Cables
- WZ-H cables
- Compatible with ZR22, ZR402, and AV550G Oxygen Analyzer Systems
- Transmit sensor/detector signal to analyzer
- Electrical input for cell temperature control
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FLY ASH Filter
The accumulation of fly ash on the zirconia cell affects its ability to measure oxygen concentration. Fly ash and its constituents can reduce the life of the zirconia cell and affect the cells response time to changes in gas concentration. Yokogawa's large surface area sintered metal filters are designed to keep particulate and ash off the measurement cell.
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Calibration Units
Yokogawa's Zirconia oxygen detector systems offer a variety of calibration units for quick, easy control of calibration gases giving the user simple, accurate calibration.
Resources
To technology in iron & steel industry is continuously improved to obtain the best possible performance. The improved plant performance gives rise to the higher quality improvement and lower cost, and simultaneously environmental friendly plant operation.
Humidity is a good indicator of drying progress as it expresses the amount of vapor in the carrier gas stream. Humidity affects the dryness of the solids with which it comes into contact. Therefore, humidity control is crucial for final product quality in drying processes such as in food manufacturing, tobacco production, and malt drying. Challenges vary from too much drying, which can cause cracking, to too little drying, which results in poor taste and texture quality.
Drying is an important part of the papermaking process that evaporates the remaining water in the wet paper web. This is performed with a dryer, and the humidity control in this dryer is essential to maintaining high paper quality (e.g., strength, paper surface) and high heat energy efficiency.
Tantalum Capacitors are electrolytic capacitors that use a material called tantalum for the electrodes. Large values of capacitance similar to aluminum electrolytic capacitors can be obtained.
Downloads
Instruction Manuals
- ZR22S, ZR402G Separate type Explosion-proof Zirconia Oxygen Analyzer (11.4 MB)
- AV550G, ZR402G, ZR22G, ZR22S, ZR202G, ZR202S, ZA8F, ZR20H, ZR40H, ZO21P, ZO21R, ZH21B Protection of Environment (Use in China) (185 KB)
- MC1/AC1 Single Channel Calibration Units (3.3 MB)
- EXAxt ZR Series HART Protocol (441 KB)
General Specifications
- *Discontinued: ZR22G,ZR402G,ZR202G Direct In Situ Zirconia Oxygen Analyzers and High Temperature Humidity Analyzers (2.6 MB)
- ZR22S and ZR202S Explosionproof Zirconia Oxygen Analyzers (1.6 MB)
- IAC-24 Compact Single Channel Calibration Unit (232 KB)
- M1234SE-A and M1200DB-06 Fly-Ash Filters (62 KB)
- ZR22G/ZR402G/ZR202G GS Sheets 9th Edition (1.9 MB)
- ZR22S/ZR202S GS Sheets 7th Edition (1.6 MB)
Technical Information
- Analytical Oxygen Product Selection Guide (759 KB)
- *Discontinued: ZR22G, ZR402G Direct In Situ Separate Type Zirconia Oxygen Analyzers (Hardware Edition) (2.8 MB)
- Filter for Oxygen Probes (694 KB)
- Zirconia Crystal Clear - O2 Learning Handbook (7.9 MB)
- The Difference of an In-Situ Zirconium Oxide Measurement
- Oxygen Sensor Spare Parts (219 KB)
- Portable Calibration Kit (97 KB)
- Pressure Compensated Oxygen Probes Explained (273 KB)
- Oxygen Probe Troubleshooting Guide (209 KB)
- Quick Zirconia Probe Diagnostics (585 KB)
- Quick Zirconia Probe Diagnostics (584 KB)
- ZR22P - High Temperature Probe Adapters
- ZR22R - Oxygen Probe Protectors and Support
Certificates
- C-Tick: Australian Government (30 KB)
- C-Tick: Australian Government (32 KB)
- CE (44 KB)
- CE (31 KB)
- CSA (237 KB)
- CSA (139 KB)
- CSA (171 KB)
- IECEx (308 KB)
- IECEx (169 KB)
- KC (110 KB)
- KC (190 KB)
- ZR22S & ZR202S ATEX (162 KB)
- ZR22S & ZR202S FM (138 KB)
Forms
- Oxygen Application Data Sheet (35 KB)
Videos
Replacing a ZR22A heater strut on a ZR22G zirconia oxygen probe. While we strive to provide the most safe and accurate information possible, we are not responsible for any loss or damages resulting from attempting to replicate the acts conducted in this video. Furthermore, we shall not be held liable for use or misuse of information contained in this video.
Replacing the zirconium oxide cell on a Yokogawa ZR series probe with the E7042UD cell kit. Note that the removal of the heater nut with the special service tool is not required, but makes the contact spring easier to see and remove/install. While we strive to provide the most safe and accurate information possible, we are not responsible for any loss or damages resulting from attempting to replicate the acts conducted in this video. Furthermore, we shall not be held liable for use or misuse of information contained in this video.
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