www.madur.com Manual GA-21Plus
Index
1. Introdu tion....................................................................................................................4
1.1. Use of this operating manual................................................................................4
2. Maintenan e...................................................................................................................5
2.1. Gas sensors............................................................................................................5
2.2. Gas system.............................................................................................................5
2.3. Battery.....................................................................................................................5
2.4. Servi e intervals.....................................................................................................6
2.5. Errors during operation.........................................................................................6
2.6. Swit hing off after use...........................................................................................6
3. General information......................................................................................................7
4. Constru tion..................................................................................................................9
4.1. Elements of gas ir uit..........................................................................................9
4.1.1. Gas probe with in-line filter...........................................................................9
4.1.2. Gas pump......................................................................................................10
4.1.3. Gas hamber.................................................................................................10
4.2. Measurement system...........................................................................................10
4.2.1. Gas sensors..................................................................................................10
4.2.2. Ambient temperature sensor.......................................................................12
4.2.3. Fleue gas temperature sensor....................................................................12
4.2.4. Gas hamber temperature sensor..............................................................12
4.2.5. Differentia pressure sensor.........................................................................12
4.2.6. Analogue inputs............................................................................................12
4.3. Data input/output system....................................................................................14
4.3.1. Keyboard.......................................................................................................14
4.3.2. Display...........................................................................................................16
4.3.3. Printer.............................................................................................................16
4.3.4. Interfa e RS232C..........................................................................................16
4.3.5. Power supply.................................................................................................17
5. Operation......................................................................................................................18
5.1. Use of the keyboard.............................................................................................18
5.1.1. Des ription of the keys................................................................................18
5.1.2. Sele ting menu options...............................................................................19
5.1.3. Entering numbers.........................................................................................20
5.1.4. Editing text....................................................................................................20
5.2. Basi operating instru tions..............................................................................21
5.2.1. Setting-up the analyser................................................................................21
5.2.2. Swit hing on..................................................................................................21
5.2.3. Swit hing off / Standby................................................................................21
5.2.4. Initial alibration...........................................................................................23
5.2.5. Measurement Parameters............................................................................24
5.2.5.1. Fuel sele tion..........................................................................................25
5.2.5.2. Averaging time........................................................................................27
5.2.5.3. Referen e Oxygen parameters (O2R)...................................................27
5.2.5.4. Boiler parameters....................................................................................28
5.3. Displaying the measurement results.................................................................29
5.3.1. Current Values..............................................................................................29
5.3.2. Averaged values...........................................................................................30
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