YOKOGAWA EXAxt ZR22G, User Manual, Page: 13 / 211

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IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
10.4 Blow Back ........................................................................................................10-8
10.4.1 Mode ................................................................................................10-8
10.4.2
Operation of Blow back ....................................................................10-8
10.4.3 Setting Output Hold Time and Blow back Time ...............................10-9
10.4.4 Setting Interval, Start Date, and Start Time .....................................10-9
10.4.5 Default Setting................................................................................10-10
10.5 Parameter Initialization .................................................................................10-10
10.6 Reset ...............................................................................................................10-17
10.7 Handling of the ZO21S Standard Gas Unit .................................................10-17
10.7.1 Standard Gas Unit Component Identification ................................10-18
10.7.2 Installing Gas Cylinders .................................................................10-19
10.7.3 Calibration Gas Flow ......................................................................10-19
10.8 Methods of Operating Valves in the ZA8F Flow Setting Unit ...................10-21
10.8.1 Preparation Before Calibration ......................................................10-22
10.8.2 Operating the Span Gas Flow Setting Valve .................................10-22
10.8.3 Operating the Zero Gas Flow Setting Valve ..................................10-22
10.8.4 Operation After Calibration ............................................................10-23
11. Inspection and Maintenance ................................................................. 11-1
11.1 Inspection and Maintenance of the Detector ............................................... 11-1
11.1.1 Cleaning the Calibration Gas Tube .................................................. 11-1
11.1.2 Replacing the Sensor Assembly ...................................................... 11-2
11.1.3 Replacement of the Heater Unit ...................................................... 11-4
11.1.4 Replacement of Dust Filter .............................................................. 11-6
11.1.5 Replacement of O-ring ..................................................................... 11-6
11.1.6 Cleaning the High Temperature Probe Adapter ............................... 11-7
11.1.7 Stopping and Re-starting Operation ................................................ 11-7
11.2 Inspection and Maintenance of the Converter ............................................ 11-8
11.2.1 Replacing Fuses .............................................................................. 11-8
11.2.2 Cleaning ........................................................................................... 11-9
11.2.3
Adjust LCD screen contrast ............................................................. 11-9
11.3 Replacing Flowmeter in ZR40H Automatic Calibration Unit ...................... 11-9
12. Troubleshooting ..................................................................................... 12-1
12.1 Displays and Remedies When Errors Occur ...............................................12-1
12.1.1 Error Types .......................................................................................12-1
12.1.2 Remedies When an Error Occurs ....................................................12-2
12.2 Displays and Remedies When Alarms are Generated ................................12-4
12.2.1 Alarm Types .....................................................................................12-4
12.2.2 Remedies When Alarms are Generated ..........................................12-5
12.3 Countermeasures When Measured Value Shows Error ........................... 12-11
12.3.1 Measured Value Higher (Lower for Humidity Analyzer)Than True Value . 12-11
12.3.2 Measured Value Lower (Higher for Humidity Analyzer) Than True Value 12-12
12.3.3 Measurements Sometimes Show Abnormal Values .....................12-13