Hach-Lange LUMISTOX 300 LPV321 User Manual - Manual (Page 3)

LUMIStox 300 Operating Manual Dr. Bruno Lange GmbH
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Page: 3
CONTENTS
1 The LUMIStox 300 measuring instrument 3
1.1 Concept 3
1.2 Starting up 4
1.3 Additional information 5
1.4 Procedure in short 6
2 Operation of the LUMIStox 300 measuring instrument 7
2.1 Switching on 7
2.2 Explanation of the LUMIStox 300 menu guidance 8
2.3 Initial settings for luminescent bacteria tests for determining GL and EC 9
2.4 Screening 11
2.5 Determining the GL value 13
2.6 Determining the EC value 15
2.7 Determining chronic toxicity with LUMIS·24·tox 17
2.8 The LUMIStox luminescent bacteria test (LCK484) 20
2.9 The TOX cuvette test (LCK488) 21
2.10 Determining optical density (OD) 23
2.11 Determining relative light units (LU) 24
3 Options 25
3.1 Colour correction 26
3.2 Standardization of luminescence measurements relative to 100 27
3.3 Self-test 28
3.4 Setting the serial interface (V24) 29
3.5 Setting the print options 30
3.6 Setting the date and time 31
3.7 Setting the temperature of the measuring shaft 32
3.8 Setting the screen contrast 32
4 Appendix 33
4.1 Sample preparation for the luminescent bacteria test 33
4.2 Determining EC and GL values 34
4.2.1 Preparing a dilution series 34
4.2.2 Practical advice: The geometrical dilution series 35
4.2.3 Practical advice: Dilution series in conformity with DIN 38412 L34/341 36
4.3 Calculation of the GL value in conformity with DIN 34412/L34/341 37
4.4 Calculating the EC value 38
5 Printout 39
6 Error messages 40
7 Technical data 41