Contents

1.

Introduction........................................................................................

4

2.

General Description ..........................................................................

5

 

2.1

Basic principle.............................................................................

5

 

2.2

Optical unit .................................................................................

7

 

2.3

Control unit .................................................................................

9

3.

Installation ........................................................................................

11

 

3.1

Site requirements ......................................................................

11

 

3.2

Unpacking .................................................................................

11

 

3.3

Electrical connections ..............................................................

11

 

3.4

Installation of the filter ............................................................

12

 

3.5

Installation of the flow cell .....................................................

13

 

3.6

Connecting the optical unit ....................................................

14

 

3.7

Connecting a recorder .............................................................

14

4.

Operation ..........................................................................................

15

 

4.1

Choice of wavelength ..............................................................

15

 

4.2

Choice of AU or transmission (%T) .......................................

15

 

4.3

Conversion table T% to AU and OD .....................................

16

 

4.4

Start-up ......................................................................................

16

 

4.5

Stabilization time......................................................................

16

 

4.6

Basic operating procedure - AU .............................................

17

 

4.7

Basic operating procedure - Transmission (%T) ..................

17

 

4.8

Shut down .................................................................................

17

5.

Maintenance .....................................................................................

18

 

5.1

General precautions .................................................................

18

 

5.2

Cleaning the flow cell ..............................................................

18

 

5.3

Changing the flow cell ............................................................

19

 

5.4

Interference filters ....................................................................

20

 

5.5

Other optical surfaces ..............................................................

20

 

5.6

Instrument housing .................................................................

20

 

5.7

Lamp and optical system test .................................................

20

 

5.8

Changing the mercury lamp...................................................

21

 

5.9

Mercury lamp - maximum light adjustment........................

22

6.

Trouble-shooting..............................................................................

23

7.

Technical Specifications ..................................................................

24

8.

Accessories and Spare Parts...........................................................

25

3