General Specications Model ZR22G, ZR402G, and ZR202G Direct In Situ Zirconia Oxygen Analyzers and High Temperature Humidity Analyzers Overview This analyzer consists basically of a probe and a converter that are used as both a Zirconia Oxygen Analyzer and High Temperature Humidity Analyzer. The probe is of direct insertion type, and the converter uses a digital display. Two types of analyzers are available: separate type and integrated type. As its name implies, the integrated type combines probe and converter. Separate and integrated type Zirconia oxygen analyzers need not use a sampling device, and allow direct installation of the probe in the wall of a ue or furnace to measure the concentration of oxygen in the stack gas. The converter displays the cell temperature and cell emf in addition to the oxygen concentration. This analyzer is most suitable for monitoring the oxygen concentration of combustion gases in large or small boilers, various industrial furnace and combustion devices, or for the control of low-oxygen combustion. Separate type and integrated type Zirconia High Temperature Humidity Analyzers are used to measure the humidity of hot gases continuously in driers which use an electrical heater or hot gas as the heat source. They can also be used in a variety of manufacturing applications in humidiers, as well as in driers, for humidity measurement and control. They can help improve productivity in these application elds. Features: • The built-in heater assembly of the probe can be replaced on site, reducing maintenance costs. • The probe uses a long-life, high-reliability Zirconia sensor. • The probe uses three-reference gas supply methods (natural air convection, instrument air, and pressure compensated) in its applications. • The separate type converter incorporates a LCD touchscreen for ease of operation. • This converter can be used as an oxygen analyzer as well as a high temperature humidity analyzer. • The integrated type integrates both probe and converter, to reduce wiring, piping, and installation costs. This type of unit uses an optical switch for ease of operation at the site. • Remote maintenance using digital communications (HART) reduces maintenance costs. *1 *1: HART is a registered trademark of HART Communication Foundation 4 to 20 mA DC signal line with superimposed HART AC signal Relaying terminals Ao+ + Control room Terminal board Receiving instrumen load resistance: 250 Ω to 550 Ω HART Communicator Model 275 HART Communicator Model 275 HART Communicator Model 275 Yokogawa Electric Corporation 2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 Japan Tel.: 81-422-52-5617 Fax.: 81-422-52-6792 GS 11M12A01-01E ©Copyright June 2000 12th Edition Dec. 2012

Basic System Conguration System conguration - Separate type System configuration Example 1 of Separate type Analyzer Automatic calibration system uses instrument air for reference gas. For the calibration gas, a standard gas cylinder may be used for more accurate calibration. Applications: Oxygen concentration monitoring and control in large boilers (for private power generation and for business use) and in heating furnaces, and the like. Humidity monitoring and control in drying furnaces and humidifiers. ZR22G Separate type Zirconia Oxygen/High Temperature Humidity Analyzer, Detector *2 *1 Signal...

Basic System Conguration System conguration — Separate type System configuration Example 2 of Integrated type Analyzer System configuration Example 2 of Separate type Analyzer Instrument air is used as the reference gas. A standard gas cylinder can be used for the calibration gas for more accurate calibration. Application example: Oxygen concentration monitoring and control in large boilers (for private power generation and for business use) and in heating furnaces. Humidity monitoring and control in drying furnaces and humidifiers. ZR22G Separate type Zirconia Oxygen/High Temperature Humidity...

System Components Separate type Integrated type Model ZR22G Separate type Zirconia Oxygen / High Temperature Humidity Analyzers,Detector Model ZR402G Separate type Zirconia Oxygen / High Temperature Humidity Analyzer, Converter(*1) Model ZR202G Integrated type Zirconia Oxygen / High Temperature Humidity Analyzers Model ZO21P High Temperature Probe Adapter for separate type Zirconia Oxygen Analyzer E7046EC, E7046EN Auxiliary Ejector Assembly for High Temperature Probe of separate type Oxygen Analyzer Model ZO21R Probe Protector for Zirconia Oxygen Analyzers K9471UA Dust Filter for Oxygen Analyzer...

■STANDARD SPECIFICATIONS (Oxygen Analyzer) Example of Application Separate and integrated type Zirconia Oxygen Analyzers • Large, medium and small boilers (boilers for power generation: heavy oil, gas or coal) • Various industrial furnaces (renery process/iron manufacture heating furnace, coal kiln, and black liquid recovery boilers) For other applications, contact Yokogawa Electric Corporation. • May not be applicable corrosive gas such as ammonia, chlorine is present-check wit YOKOGAWA. General Specications Oxygen Analyzer Measurement Object: Oxygen concentration in combustion exhaust gas and...

<> <> When the probe insertion length is 2.5 m or more, mount vertically downward (within ±5°) and use a probe protector. Weight: Insertion length of 0.4 m: approx. 6 kg (JIS 5K 65) / approx. 11 kg (ANSI 150 4) Insertion length of 1.0 m: approx. 8 kg (JIS 5K 65) / approx. 13 kg (ANSI 150 4) Insertion length of 1.5 m: approx. 10 kg (JIS 5K 65) / approx. 15 kg (ANSI 150 4) Insertion length of 2.0 m: approx. 12 kg (JIS 5K 65) / approx. 17 kg (ANSI 150 4) Insertion length of 3.0 m: approx. 15 kg (JIS 5K 65) / approx. 20 kg (ANSI 150 4) Insertion length of 3.6 m: approx. 17 kg (JIS 5K 65) / approx....

<> <> Password Functions: Enter your password to operate the analyzer excepting data display. Individual passwords can be set for maintenance and setup. Display and setting content: Measuring Related Items: Oxygen concentration (vol% O2), output current value (mA), air ratio, moisture quantity (in hot gases) (vol% H2O) Display Items: Cell temperature (°C), thermocouple reference junction temperature (°C), maximum/minimum/average oxygen concentration (vol% O2), cell e.m.f. (mV), cell internal resistance (Ω), cell condition (in four grades), heater on-time rate (%), calibration record (ten times),...