Yokogawa ZR22G Zirconia Oxygen Humidity Analyzer 4-20mA Output
| Attribute |
Value |
| Output Signal |
4-20MA |
| Contact Input |
Two Points |
| Power Supply |
85 To 264 V AC; 45 To 66 Hz |
| Measurement Range |
0.01 To 100 Vol% O2 |
| Highlight |
Zirconia Oxygen Analyzer Zr22g, Single Channel Zirconia Oxygen Analyzer, Zirconia Oxygen Humidity Analyzer |
Yokogawa Single-Channel Zirconia Oxygen & Humidity Analyzer
This analyzer is composed of a probe and a converter, and it functions as both a Zirconia Oxygen Analyzer and a High-Temperature Humidity Analyzer.
Product Introduction
As a Zirconia Oxygen Analyzer, it is highly suitable for monitoring the oxygen concentration in combustion gases of large or small boilers, various industrial furnaces, and combustion devices. It also plays a role in controlling low-oxygen combustion.
As a Zirconia High-Temperature Humidity Analyzer (of the separate type), it is used for continuous humidity measurement of hot gases in driers that rely on electrical heaters or hot gas as the heat source. Additionally, it finds application in a range of manufacturing processes involving humidifiers and driers, aiding in humidity measurement and control to enhance productivity in these fields.
Specific application scenarios include:
For Zirconia Oxygen Analyzer: Large, medium, or small-sized boilers (used for electric power, heavy oil, gas, coal, etc.) and various industrial furnaces (such as oil/steel heating furnaces, coal kilns, etc.).
For Zirconia High-Temperature Humidity Analyzer: The coloring process in textile factories, the steam curing process for concrete products, various manufacturing and drying processes of building materials, wood, food, etc., and various manufacturing and humidification processes of food products.
Product Features
- The ZR802G converter is equipped with a digital display that shows not only the oxygen concentration but also the cell temperature and cell emf.
- It includes a Human Machine Interface (HMI) with an easy-to-use touch-screen operation, making the operation more convenient.
- It has dual functions, serving as both an oxygen analyzer and a high-temperature humidity analyzer, meeting diverse measurement needs.
- The separate type Zirconia High-Temperature Humidity Analyzers can continuously measure the humidity of hot gases, which is beneficial for improving productivity in relevant application fields.
Product Parameters
Technical Specs at a Glance
| Measurement Object |
Oxygen analyzer: Oxygen concentration in combustion exhaust gas and mixed gas
Humidity Analyzer: Water vapor (in vol%) in mixed gases (air and water vapor) |
| Measurement System |
Zirconia System (Detector ZR22G) |
| Measurement Range |
O2: 0.01-100 vol%
H2O: 0-100 vol%
Mixture ratio: 0-1.000 kg/kg |
| Digital Communication |
HART7 (AO1, 250 to 550 Ω)
Ethernet (Modbus TCP)
RS-485 (Modbus RTU) |
| Repeatability |
O2: ± 0.5% F.S. (0 to 5 vol% O2 or more and less than 0 to 25 vol% O2 range)
O2: ± 1% F.S. (0 to 25 vol% O2 or more and up to 0 to 100 vol% O2 range)
H2O: ± 1 vol%H2O (Sample gas pressure 2 kPa or less) |
| Linearity |
O2: ± 1% F.S. (0 to 5 vol% O2 or more and less than 0 to 25 vol% O2 range)
O2: ± 3% F.S. (0 to 25 vol% O2 or more and less than 0 to 50 vol% O2 range)
O2: ± 5% F.S. (0 to 50 vol% O2 or more and up to 0 to 100 vol% O2 range)
H2O: ± 2 vol%H2O (sample gas pressure: within ± 0.49 kPa)
H2O: ± 3 vol%H2O (sample gas pressure: 2 kPa or less) |
| Drift |
O2: Both zero and span ± 2% F.S. /month
H2O: Both zero and span ± 3 vol%H2O /month |
| Response Time |
Response of 90% within 5 seconds. |
