ELTRA CS-800 User Manual

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1 Notes on the Service Manual ................................................................................................................ 8
2 Modification overview ............................................................................................................................ 9
2.1 Up to S/N 0766xxxxxx 9
2.2 From S/N 0767xxxxxx to 0950xxxxxx 13
2.3 From S/N 0951xxxxxx to 1079xxxxxx 15
2.4 From S/N 1080 xxxx to 1556xxxxx 20
2.5 From S/N 1557xxxxxx 25
2.6 new pneumatics (from end 2007) 26
3 Fault messages ..................................................................................................................................... 27
3.1 Check base lines 27
3.2 Fluctuating gas flow 28
3.2.1 Blocked metal dust filter 29
3.2.2 Blocked chemicals 29
3.2.3 Blocked paper filters 30
3.2.4 Blocked lance hole over the crucible 30
3.2.5 Blocked furnace outlet 30
3.2.6 Too low oxygen pressure 30
3.2.7 Outlet tap of the oxygen regulator is not properly open 30
3.2.8 Contaminated or corroded solenoid valve 30
3.2.9 Faulty oxygen regulator 30
3.2.10 Bent plastic tube of oxygen supply 30
3.2.11 Heavy item is placed on the plastic tube of the oxygen supply 31
3.2.12 Twisted plastic tube inside the analyzer 31
3.2.13 Oxygen supply is interchanged with the compressed air supply 31
3.2.14 Blocked dust filter cartridge 31
3.2.15 Blocked fittings 31
3.2.16 Blocked flow sensor assembly 31
3.2.17 Electronic problem 31
3.3 High carbon results are erratic 32
3.4 No combustion 33
3.4.1 No oxygen pressure 33
3.4.2 No flow 34
3.4.3 Pre-purging 34
3.4.4 Waiting for stability 34
3.4.5 Integration delay 35
3.4.6 Analyzing 35
3.4.7 The command from the microcontroller to start the generator is not received 35
3.4.7.1 Measurements on TP9: 35
3.4.7.2 Checking the generator tube 36
3.4.7.3 If the filament of the generator tube doesn’t glow 37
3.4.7.4 Checking the primary voltage on the high voltage transformer: 38
3.4.7.5 The rectifier could also be faulty 39
3.4.7.6 Loud buzzing sound when the generator turns on 42
3.5 Bad combustion 42
3.6 Electronic- drivers malfunctioning 43
3.7 Furnace does not close 45

ELTRA CS-800 Specifications

General

Brand	ELTRA
Model	CS-800
Category	Measuring Instruments
Language	English