1. O 2 ANALYSER A Seminar on PRESENTED BY:- NITISH CHAND BINDAL INSTRUMENTATION E.CODE:- 11077

3. Cabling and Installation

4. Principle of Zirconia Oxygen Analyzer

5. Mathematical Calculation 1.Electrode with high oxygen partial pressure: 2.Electrode with low oxygen partial pressure: 3.EMF CALCULATED BY Nemst's formula. Where, R: Gas constant; T: Absolute temperature; n: 4; F: Faraday's constant ; Px: Oxygen partial pressure of zirconia element on the measuring gas side(%); PA: Oxygen partial pressure of zirconia element on the reference air side(%); Atmospheric air: 20.6(%); Instrument air: 21.0(%)

6. Separate-type Detector (ZR22G) It is Used in 2x50 MW AFBC and CFBC Boilers. Standard Specifications: 1. Sample Gas Temperature : 0 to 700 deg C (Probe only) 2. Sample Gas Pressure :-5 to +250 kPa 3. Probe Length(L) : 0.15, 0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0, 4.2 m 4. Ambient Temperature : -20 to +150 deg. C 5. Installation : Flange mounting 6. Probe Mounting Angle : Horizontal to vertically downward. Note:1. When the probe insertion length is 2 m or less, can install at angles from horizontal to vertically downward. 2. When the probe insertion length is 2.5 or more, mount vertically downward (within 2.5 deg. )

7. Internal Wiring Diagram

8. Basic Panel Display Sensor Display During Warm up

9. Separate-type Converter (ZR402G) Standard Specifications: 1.Output Signal : 4 to 20 mA DC 2. Ambient Temperature : -20 to +55 deg C 3. Power Supply Voltage : 100 to 240 V AC 4. Power Supply Frequency : 50/60 Hz 5. Maximum Distance between Probe and Converter: Conductor two-way resistance must be 10 ohm or less (when a 1.25 mm2 cable or equivalent is used, 300 m or less.)

10. Calibration Procedure of O2 Analyzer MANUALAUTOMATIC SPANZERO DISPLAY -1DISPLAY -2DISPLAY -3

11. Abnormalities and Alarms

12. QUERIES ???