Yokogawa Single - Channel Zirconia Oxygen & Humidity Analyzer
Product Introduction
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.
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, etc.
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. |
