Yokogawa Integral Oxygen Analyzer ZR202 Manuel d'utilisateur Page 130
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Noté. / 5. Basé sur avis des utilisateurs
<9. Calibration>
9-2
IM 11M12A01-02E 8th Edition : Jan.13,2012-00
Figure 9.1 Oxygen concentration in a Sample Gas vs Cell Voltage (21 vol%O
2
Equivalent)
The measurement principles of a zirconia oxygen analyzer have been described above.
However, the relationship between oxygen concentration and the electromotive force of a cell is
only theoretical. Usually, in practice, a sensor shows a slight deviation from the theoretical value.
This is the reason why calibration is necessary. To meet this requirement, an analyzer calibration
is conducted so that a calibration curve is obtained, which corrects the deviation from the
theoretical cell electromotive force.
9.1.2 Calibration Gas
A gas with a known oxygen concentration is used for calibration. Normal calibration is performed
using two different gases: a zero gas of low oxygen concentration and a span gas of high oxygen
concentration. In some cases, only one of the gases needs to be used for calibration. However,
even if only one of the gases is normally used, calibration using both gases should be done at
least once.
The zero gas normally used has an oxygen concentration of 0.95 to 1.0 vol%O
2
with a balance of
nitrogen gas (N
2
). The span gas widely used is clean air (at a dew-point temperature below -20
°C and free of oily mist or dust, as in instrument air).
For best accuracy, as the span gas use oxygen whose concentration is near the top of the
measurement range, in a nitrogen mixture.
0.1
0.5 1 5 10 21.0
50 100
120
100
80
60
40
20
0
-20
-40
0.51 vol% O2,81.92mV(Zero origin of calibration)
21.0 vol% O2, 0mV
(Span origin of calibration)
Oxygen concentration (vol % O
2)
Cell
voltage
(mV)
F9.1E.EPS
- Model ZR22G, ZR402G 1
- Separate type 1
- Zirconia Oxygen Analyzer 1
- Introduction 3
- T-Int2E.ai 4
- CONTENTS 9
- IM 11M12A01-02E 10
- 8th Edition : Jan.13,2012-00 10
- 1. Overview 15
- 1.1.2 System 2 16
- 1.1.3 System 3 17
- 1.2.1 System Components 18
- 2. Specications 19
- Related Equipment 20
- <2. Specications> 21
- Model and Codes 22
- EXTERNAL DIMENSIONS 23
- □*B to reinforce the probe 25
- Temperature 26
- Flange <1> 28
- 2.4.1 Standard Specication 29
- 2.4.2 Functions 30
- Accessories 33
- ● External Dimensions 35
- • Piping Diagram 37
- 2.7 Other Equipments 39
- Part No. Description 39
- K9471UA Filter 39
- K9471UX Tool 39
- 2.7.6 Air Set 43
- (G7013XF, G7014XF) 44
- (E7044KF) 45
- F2-16E.ai 46
- 3. Installation 47
- <3. Installation> 48
- (ZR22G-015) 51
- F3-5E.ai 52
- F3-6E.ai 53
- 3.3.1 Installation Location 54
- Figure 3.8 Mounting holes 55
- Figure 3.9 Wall Mounting 55
- 3.4.1 Installation Location 56
- 4 - Φ6.5 hole, or M6 screw 57
- Unit : mm 57
- F3-16_1E.ai 58
- A pipe to be mounted 59
- 4. Piping 61
- NippleStop valve 63
- Tube connection joint 63
- Reducing nipple 64
- (R1/2-R1/4 or R1/2-1/4NTP) 64
- Needle valve 64
- F4-6E.ai 64
- 4.2 Piping for System 2 65
- <4. Pipomg> 67
- 4.3 Piping for System 3 68
- F4-11E.ai 69
- Compensation 70
- Pressure Compensation 72
- 5. Wiring 73
- Front door 74
- Cable inlet 74
- Terminals are visible 74
- 5.1.2 Wiring 75
- F5-4E.ai 76
- 5.2.1 Cable Specications 77
- F5-6E.ai 78
- 5.3.1 Cable Specications 79
- Lock screw 80
- Detector cover 80
- 5.4.1 Cable Specications 81
- 5.4.2 Wiring Procedure 81
- 5.5.1 Power Wiring 81
- 5.6 Contact Output Wiring 82
- 5.7.1 Cable Specications 83
- 5.7.2 Wiring Procedure 83
- 5.8.1 Cable Specications 84
- 5.8.2 Wiring Procedure 84
- 6. Components 85
- F6.2E.ai 86
- 6.2 ZR402G Converter 87
- Calibration Unit 88
- 7. Startup 89
- 4.00mA -Output1 90
- 4.00mA -Output2 90
- 17.43mA -Output1 91
- 17.43mA -Output2 91
- <7. Startup> 92
- Commissioning 95
- 7.7 Selection of Sample Gas 96
- 7.8 Output Range Setting 96
- 7.9 Setting Display Item 97
- Primary value 97
- Secondary value 97
- Tertiary value 97
- F7.13.ai 97
- Display item 98
- mA - output 1 99
- mA - output 2 99
- Output contacts 100
- Input contacts 101
- 7.12.1 Calibration Setup 102
- 7.12.2 Manual Calibration 103
- Manual calibration 104
- Blank Page 106
- 8. Detailed Data Setting 107
- 8.1.5 Default Values 108
- 8.2 Output Hold Setting 109
- 8.2.2.siki 110
- 8.2.3 Output Hold Setting 110
- 8.2.4 Default Values 111
- 8.3.2 Alarm Output Actions 112
- 8.3.4 Default Values 114
- 8.4 Output Contact Setup 115
- Contact setup 116
- 8.4.3 Default Values 118
- 8.5 Input Contact Settings 119
- F8.9E.ai 119
- 8.5.2 Setting Procedure 120
- 8.5.3 Default Values 120
- Minimum Values Are Monitored 121
- 8.6.3 Setting Fuels 122
- For liquid fuel 123
- For gas fuel 123
- For solid fuel 123
- Absolute 124
- Dry-bulb temperature, °C 124
- Table 8.8 Fuel Data 125
- Fuel setup 126
- 8.6.4 Setting Purging 127
- 8.6.5 Setting Passwords 128
- 9. Calibration 129
- 9.1.2 Calibration Gas 130
- 9.1.3 Compensation 131
- Calibration 132
- 9.2 Calibration Procedures 133
- Calibration setup 134
- F9.4E.ai 134
- F9.5E.ai 134
- Calibration timing 135
- 9.2.2 Default Values 136
- 9.2.3 Calibration 137
- <9. Calibration> 138
- 10. Other Functions 139
- F10.3E.ai 140
- T10.1E.ai 141
- 10.1.2 Trend Graph 143
- 10.1.3 Auto-Return Time 145
- 10.1.4 Entering Tag Name 145
- 10.1.5 Language Selection 145
- 10.2 Blow Back 146
- Blow back setup 147
- Defaults 149
- Start reset 153
- Cancel reset 153
- 10.5.3 Calibration Gas Flow 155
- Flow Setting Unit 158
- Calibration gas tube 162
- Exploded view of components 162
- (with outside diameter 162
- Groove in which the contact 163
- (E7042BS) is placed 163
- Converter 168
- F11.5E.ai 168
- 11.2.2 Cleaning 169
- Fig. 11.9 Fixing Flowmeter 170
- 12. Troubleshooting 171
- F12.1.2E.ai 172
- 12.2.1 Alarm Types 175
- F12.7E.ai 177
- Shows Error 181
- Customer 183
- Maintenance 183
- Parts List 183
- 1st Edition : Jan. 2000 (YK) 184
- 3rd Edition : Feb. 2011 (YK) 184
- 1st Edition : Dec. 2000 (YK) 185
- 3th Edition : Feb. 2011 (YK) 185
- 4th Edition : Mar. 2011 (YK) 188
- Revision Information 189
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