Velp Scientifica UDK 139, Руководство по эксплуатации

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10004762/B5 3
CONTENTS
1.1. Parts included .......................................................................................................... 6
1.2. Instrument description ............................................................................................. 7
2. Chemicals .............................................................................................................. 10
2.1. Products used ....................................................................................................... 10
2.2. Substances generated by digestion and distillation ................................................ 11
3. Assembly and installation ....................................................................................... 12
3.1. Hydraulic connections ........................................................................................... 13
3.2. Connection to the electric power supply ................................................................. 14
3.3. Connection to external devices .............................................................................. 15
3.4. Printer
15
3.4.1. Mouse .......................................................................................................... 16
3.5. Preliminary operations ........................................................................................... 16
4. Using the menus .................................................................................................... 17
4.1. Quick Guide .......................................................................................................... 17
4.2. Main menu ............................................................................................................ 19
4.3. Analysis 21
4.3.1.
Wash-down .................................................................................................. 21
4.3.2. Distillation .................................................................................................... 23
4.4. Methods 26
4.5. Set-up
28
4.6. System 31
4.6.1.
Check-up ..................................................................................................... 31
4.6.2. Calibration .................................................................................................... 38
4.6.3. Maintenance ................................................................................................ 39
4.6.4. Service ......................................................................................................... 40
5. Operating Controls ................................................................................................. 42
5.1. Safety devices, signals and warnings .................................................................... 42
5.1.1.
Safety devices .............................................................................................. 42
5.1.2. Reserves and overfilling ............................................................................... 43
5.1.3. Warning signals and messages .................................................................... 44
5.1.4. Black-out ...................................................................................................... 45
5.2. Graph of steam production .................................................................................... 45
5.3. Graph of tap water consumption related to the water flow rate and temperature .... 46
6. Work cycle ............................................................................................................. 47
6.1. Analysis 47
6.2.
Devarda’s analysis ................................................................................................ 47
7. End-of-work operations .......................................................................................... 48
8. Maintenance .......................................................................................................... 49
8.1. Routine maintenance ............................................................................................. 49
8.2. Extraordinary maintenance .................................................................................... 50
8.2.1.
Periodic maintenance ................................................................................... 50
8.2.2. Operations to be performed only when necessary ........................................ 52
8.3. Expedients for transport......................................................................................... 53
9. Disposing of the unit ............................................................................................... 54
10. Accessories ........................................................................................................... 54
11. Spare parts ............................................................................................................ 55
12. Technical features .................................................................................................. 56
13. Wiring diagram ....................................................................................................... 58
14. Hydraulic scheme .................................................................................................. 60
15. Warranty 62
16. Suggestions ........................................................................................................... 62
17. General description of Kjeldahl's method for the measurement of organic Nitrogen 63
18. AOAC, method 960.52, Microchemical determination of nitrogen- Micro-Kjeldahl
method .............................................................................................................. 68
19. Analytical procedure Typical analytical scheme for organic Nitrogen ...................... 70
190