Metrohm 807 Dosing Unit - Manual (Page 5)

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Table of contents
807 Dosing Unit
￭￭￭￭￭￭￭￭ III
Table of contents
1 Introduction 1
1.1 Instrument description ......................................................... 1
1.2 Model versions ...................................................................... 1
1.3 About the documentation ................................................... 2
1.3.1 Symbols and conventions ........................................................ 2
1.4 Safety instructions ................................................................ 3
1.4.1 Tubing and capillary connections ............................................. 3
1.4.2 Flammable solvents and chemicals ........................................... 3
1.5 Recycling and disposal ......................................................... 4
2 Construction of the 807 Dosing Unit 5
2.1 Total view .............................................................................. 5
2.2 Components of the 807 Dosing Unit .................................. 6
2.3 Cylinder unit .......................................................................... 8
2.4 Connectors (ports) of the 807 Dosing Unit ........................ 9
3 Installation 10
3.1 Greasing the dosing unit .................................................... 10
3.2 Mounting the storage vessel and the holder ................... 11
3.3 Mounting the adsorber tube ............................................. 14
3.4 Mounting filling tubes ........................................................ 15
3.5 Mounting the dosing unit onto the bottle ....................... 15
3.5.1 Mounting the dosing unit onto the bottle .............................. 15
3.5.2 Mounting the dosing tubing and buret tips ............................ 17
3.5.3 Buret tips ............................................................................... 18
3.6 Avoiding air bubbles .......................................................... 19
3.7 Disassembling the dosing unit .......................................... 21
3.7.1 Disassembling the dosing unit ................................................ 21
3.8 Assembling the dosing unit ............................................... 26
3.8.1 Inserting the dosing piston .................................................... 26
3.8.2 Attaching cylinder unit in distributor ...................................... 28
3.8.3 Attaching the housing ........................................................... 28
4 Handling and maintenance 31
4.1 Care and upkeep ................................................................. 31
4.1.1 Cleaning dosing cylinder and dosing piston ........................... 31
4.1.2 Cleaning valve disc and distributor disc .................................. 32