Yokogawa Multi Channel Oxygen Analyzer System ZR22/AV550G

Zirconia Oxygen Probe/Sensor – ZR22

The industry leading ZR22 in-situ type Zirconia detector provides dependable and accurate oxygen measurement. Available in lengths from 15 cm to 5.4 meters, the ZR22 can be used in process temperatures up to 700ºC (up to 1871ºC with our close-coupled extractive adapter ZR22P), and pressurized ducts up to 2.5 bar with the pressure compensating option.

The ZR probe’s in-situ measurement method does not require any process conditioning or extractive sampling. This reduces maintenance costs and allows faster measurement response to changes in the process. The new probe’s modular design incorporates a rebuildable heater and thermocouple assembly, the industry standard field replaceable Yokogawa Zirconia cell, and removable reference and calibration lines to create an oxygen measurement product designed for simple, quick and low-cost field maintenance.

  •     Rebuildable, field maintainable design
  •     Proven Zirconia sensor technology
  •     Can be used in pressurized ducts up to 2.5 bar, 700°C (up to 1871ºC with ZR22P adapter)
  •     Optional filters or flame arrestors
  •     Multiple flange size options
  •     Hazardous area probe available (ZR22S)

Multi Channel Zirconia Oxygen Analyzer – AV550G

The O2mation, model AV550, averaging oxygen analyzer was designed with a focus on practical performance. Yokogawa has refined our expertise in the combustion oxygen business into this new and creative product. It is packed with features designed to minimize plant down time and technical support for the oxygen measurement. A multiple point oxygen measurement system may be required for situations when gas stratification in the flue duct affects combustion control. The AV550G averaging analyzer is ideal for combustion control in large utility boilers or various industrial furnaces.

  • Can accept inputs from up to eight ZR22 detectors
  • Sends both individual and averaged sensor outputs
  • Multipoint analyzer reduces installation and maintenance costs
  • Large 5.7-inch color LCD display shows various measurement, setup, calibration, and trend screens
  • Intuitive touchscreen is easy to read and simplifies setup and maintenance
  • Individual channel cards can be “hot swapped”
  • 4-20 mA standard outputs with HART or Foundation Fieldbus

 

  • Full color touch screen operation
  • Multiple display modes shows average data, single detector or all detector gas concentrations
  • Handles input of up to 8 oxygen detectors
  • Redundant system using multiple CPUs
  • "Hot swap" of channel cards to minimize analyzer down time
  • Eight 4/20mA outputs for individual detectors
  • Three 4/20mA outputs for average oxygen concentration outputs
  • Failed, in calibration, or alarming, detectors are automatically excluded from average calculations
  • Automatic or manual type calibration methods
  • 24V or 120VAC auto-calibration power option
  • Allows contact input, calibration activation, range change and detector performance validation
  • Intuitive "common language" operation
  • Housing temperature alarm to notify user of over temperature conditions on the electronics
  • Trend graphing – allows trend view and stacked trend view of oxygen concentrations
  • Smart calibration – uses historical calibration data to estimate when the next calibration should occur
  • Asymmetry alarm – uses historical calibration data to determine possible measurement errors due to process condition changes
  • Remote Validation – permits control room activation of zero, span or midpoint gas concentrations without running an actual calibration.
  • Cal line purge function – allows the gas purge of calibration lines of condensation before the detector is heated up to prevent water damage to the zirconia cell.

In the spirit of the zirconia sensor “remaining life” diagnostic, Yokogawa introduces predictive calibration dates, cell asymmetry alarms and detector validation features. These new process diagnostic tools use historical process data to provide operators new ways to reduce measurement down time. The predictive calibration and detector validation features reduce the number of redundant calibrations. The sensor asymmetry alarm provides users a new look into the problem of fly ash plugging by monitoring the particular symptoms of the pressure-induced drift.

O2mation is a modular design. Channel cards can be changed without powering off the analyzer and the unit is easily expandable to accept up to 8 zirconia detectors. O2mation has the capability to output the average oxygen concentration from a user-selected group of zirconia detectors. Detectors that are in alarm, calibration, or that are not in service, are automatically removed from the average output. This feature is especially useful when plant maintenance schedules call for frequent calibrations.

Standard Specifications

Measurement objectO2, CO, CO or CH4, CO2, CO + CO2, H2O, NH3, NH3 + H2O, H2S, HCl concentration in combustion exhaust gas and process gas
Measurement systemTunable diode laser spectroscopy
Measured components and rangeMeasured componentMin. rangeMax. range
O20-1%0-25%
CO(ppm)0-200 ppm0-10,000 ppm
CO+CH4CO0-200 ppm0-10,000 ppm
CH40-5 %
NH30-30 ppm0-50,000 ppm
H2O (ppm) in non HC0-30 ppm0-30,000 ppm
H2O (ppm) in HC0-30 ppm0-30,000 ppm
CO (%)0-20 %0-50 %
CO (%) + CO2 (%)0-30 %0-100 %
 NH3 + H2ONH30-30 ppm0-5,000 ppm
H2O0-5 %0-50 %
H2S0-5 %0-100 %
CO2 (%) High Range0-1 %0-5 %
CO2 (%) Extend.Range0-30 %0-50 %
H2O (%)0-10 %0-100 %
HCl0-50 ppm0-5,000 ppm
Output path lengthOptical distance between the laser unit and the sensor control unit Standard; 0.5 to 6 m, Max; 30 m
Output signal2 points, 4 to 20 mA DC
Output types; Gas concentration, Transmission, Process gas temperature, Process gas pressure
Output range; 3.0 to 21.6 mA DC
Digital communicationHART, Ethernet
Contact outputs2 points, contact rating 24 V DC, 1 A
DO;
Function: Activate during Warning / Calibration / Validation / Warm up / Maintenance conditions
Fault;
Function: Activate during normal condition, not activate during fault condition or when the system power is off
Valve control output2 points
Function; Activate calibration or validation solenoid valves for zero, span or validation gas
Output signal; 24 V DC, 500 mA Max. per terminal
AlarmWarning;
Gas concentration low/high, Transmission low, Process pressure low/high, Process temperature low/high, Validation required, Validation failure, Zero/Span calibration error, Non process alarm, External alarm
Fault;
Laser module temperature low/high, Laser temperature low/high, Detector signal high, Peak center out of range, Reference peak height low, Absorption too high, Transmission lost, Reference transmission low, Reference peak height high, Laser unit failure, Laser module error, File access error, E2PROM access error.
Contact inputs
(Digital input)		2 points
Function;
External alarm/Calibration start/Validation start/Stream switch
Contact specification;
Zero voltage contact input
Input signal; Open signal;
100 kΩ or more, Close signal; 200 Ω or less
Input signal
(Analog input)		2 points, 4 to 24 mA DC
Input types; Process gas temperature, Process gas pressure
Self-diagnosticsLaser Unit temperature, Sensor Control Unit temperature, Laser temperature, Detector signal level, Memory read/write function, Peak locking condition
CalibrationCalibration method; Zero/Span calibration
Calibration mode; Manual, Auto, Local initiate (HMI)
ValidationValidation method; Up to 2 points
Validation mode; Manual, Auto, Local initiate (HMI)
Power supply24 V DC ±10%
Warm-up time5 min.
Protection degreeIP66, NEMA Type 4X
Hazardous area classificationsDivision 1, Zone 1; Explosion-proof/ Flame-proof type; FM, cFM, ATEX, IECEx (Pending)
Division 2, Zone 2; Non-Incendive/Type n; FM, cFM, ATEX, IECEx
Process gas conditionProcess gas temperature; Maximum 1500℃
Process gas pressure; Max. 1 MPa, Min. 90 kPa
Dust in process gas; 20 g/m3 or less
Installation conditionAmbient operating temperature; -20 to 55℃
Storage temperature; -30 to 70℃
Humidity; 0 to 95%RH at 40℃ (Non-condensing)
Mounting flange type; ASME B 16.5, DIN, JIS
Gas connections; 1/4 NPT or Rc1/4
Purge gas;
Recommended purge gasses
O2 analyzer; N2 (99.99% or greater, application dependent)
H2O ppm analyzer; N2 (99.99% or greater with < 20 ppm H2O for feed to the optional dryer package)
CO, CO or CH4, CO2, CO+CO2, NH3, NH3+H2O, H2S, HCl;
N2 (99.99% or greater, application dependent) or Instrument air  CO, NH3 analyzer: N2 (99.99% or greater, application dependent) or Instrument air
Purge gas flow rates;
5-20 L/min for optic
5-30 L/min for process window
Purge gas connections;
1/4NPT (-G1, -C2, -D2, -C2, -D1, -C1),
Rc1/4 (-G2, -S2, -E2, -J2, -E1, -J1)

Performance

Measurement gasRepeatabilityLinearity
O2± 1% reading or ± 0.01% O2, whichever is greater± 1% F.S.
CO (ppm)± 2% reading or ± 1 ppm CO, whichever is greater± 1% F.S.
CO + CH4CO± 1% reading or ± 1 ppm CO, whichever is greater± 2% F.S.
CH4± 4% reading or ± 0.02% CH4, whichever is greater± 4% F.S.
NH3± 2% reading or ± 1 ppm NH3, whichever is greater± 2% F.S.
H2O (ppm) in non
HC		± 2% reading or ± 0.1 ppm H2O, whichever is greater± 1% F.S.
H2O (ppm) in HC± 2% reading or ± 0.1 ppm H2O, whichever is greater± 1% F.S.
CO (%)± 1% reading or ± 0.01% CO, whichever is greater± 1% F.S.
CO (%) + CO2 (%)CO± 1% reading or ± 0.1% CO, whichever is greater± 1% F.S.
CO2± 1% reading or ± 0.1% CO2, whichever is greater± 1% F.S.
NH3 + H2ONH3± 2% reading or ± 1 ppm NH3, whichever is greater± 2% F.S.
H2O± 4% reading or ± 0.05% H2O, whichever is greater± 2% F.S.
H2S± 1% reading or ± 0.005% H2S, whichever is greater± 1% F.S.
CO2 (%) High Range± 1% reading or ± 0.005% CO2, whichever is greater± 1% F.S.
CO2 (%) Extend. Range± 1% reading or ± 0.02% CO2, whichever is greater± 1% F.S.
H2O (%)± 1% reading or ± 0.004% H2O, whichever is greater± 1% F.S.
HCL± 1% reading or ± 2.5 ppm H2O, whichever is greater± 2% F.S.

YH8000 HMI Unit

The YH8000 is a HMI designed specifically for the Tunable Diode Laser Gas Analyzer, the TDLS8000.

  • Touchscreen 7.5 inch color LCD on HMI
  • Makes it simple to operate
  • Can be remotely installed
  • Up to 4 units connection available

Specification

DisplayTouchscreen 7.5 inch TFT color LCD panel, 640 x 480 (VGA)
CommunicationEthernet; RJ-45 connector, Communication speed; 100 Mbps
Protection degree
of enclosure		IP65, NEMA Type 4X
Weight4 kg
MountingAnalyzer mount (Front, left-side, right-side) with tilt function, Pipe mount or Panel mount
Cable Entries1/2NPT or M20 x 2
Installation
conditions		Ambient operating temperature; -20 to 55℃
Storage temperature: -30 to 70℃
Humidity: 10 to 90%RH at 40℃ (Noncondensing)
Power Supply24 V DC ±10%
Hazardous area
classifications		Division 2, Zone2: Non-Incendive/Type n; FM, cFM, ATEX, IECEx

Brochures
Instruction Manuals
General Specifications
Software
Technical Information
Certificates
Drawings
Forms

Resources

Measurement of O2 Concentration in Hot Blast Stoves

Tantalum Capacitor

How Tos

AV550G Channel Card Replacement

ZR22G Heater Strut Replacement

Yokogawa Canada

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Multi Channel Oxygen Analyzer System ZR22/AV550G