ELTRA CS-2000, Руководство по обслуживанию

Страница: 3 / 160

3
Table of Contents
1 Notes on service instructions 7
1.1 Explanations of the Safety Instructions 7
2 Discharging the oscillator 8
3 Faults 12
3.1 Check base lines 12
3.2 Fluctuating gas flow 13
3.3 No combustion 18
3.3.1 Induction furnace operation 18
3.3.2 Resistance furnace operation 27
3.4 Bad combustion 27
3.4.1 Induction furnace operation 27
3.4.2 Resistance furnace operation 28
3.5 Furnace does not close 30
3.6 Analysis takes too long 32
3.6.1 RF-interference on the IR-cell, or on the electronic units 33
3.6.2 Additional reasons for excessive analysis duration 34
3.6.3 One of the IR-sources is unstable 34
3.6.4 The power voltage sinks below 180 VAC 34
3.7 Development of dust when closing the furnace 35
3.8 Erratic results 35
3.9 The results are always 0.0000% or 00.0ppm: 37
3.10 No oxygen flow 38
3.10.1 Induction furnace operation 38
3.10.2 Other faults 39
3.10.3 Resistance furnace operation 39
3.11 IR-cell temperature control is out of range 39
3.12 Breaker turns off at the beginning of combustion 39
3.13 Breaker turns off at the end of the analysis 43
3.14 Dustcloud when opening the furnace 44
3.15 No or low oxygen pressure 45
3.16 Waiting for stability message 47
3.17 Combustion tube breaks frequently 48
3.18 Oxygen pressure falls when the furnace opens 49
3.19 Combustion without starting analysis 50
3.20 Crucible or boat cracks or melts 52
3.20.1 Induction furnace 52
3.20.2 Resitance furnace 52
3.21 Oxygen pressure goes up very slowly 52
3.22 Pump voltage too high 54
3.23 Resistance furnace takes too long to warm up 58
3.24 Negative drift after start 59
3.25 Resistance furnace completly cold or too hot 60
3.26 Fumes in the resistance furnace 61
3.27 Resistance furnace doesn`t reach full temperature 62
3.28 Unstable resistance furnace temperatur 62
3.29 Dust or soot from the resistance furnace 63