Hach-Lange 2100 N Laboratory Turbidimeter User Manual - Manual (Page 3)

Table of Contents
Specifications
..................................................................................................................................................................................5
General information
.....................................................................................................................................................................6
Safety information ..............................................................................................................................................................................6
Use of hazard information ..................................................................................................................................................................6
Precautionary labels ..........................................................................................................................................................................6
Certification ........................................................................................................................................................................................7
Product overview ...............................................................................................................................................................................7
Product components ..........................................................................................................................................................................8
User interface
..................................................................................................................................................................................9
Startup
...............................................................................................................................................................................................10
Turn the instrument on .....................................................................................................................................................................10
Turn the keypad sound off (optional) ...............................................................................................................................................11
Standard operation
....................................................................................................................................................................11
Calibrate the turbidimeter with StablCal ® Standards .......................................................................................................................11
Prepare the StablCal standards ................................................................................................................................................11
Calibration notes .......................................................................................................................................................................11
StablCal calibration procedure ..................................................................................................................................................12
StablCal standards storage ......................................................................................................................................................13
Using Gelex secondary standards ...................................................................................................................................................13
Gelex notes...............................................................................................................................................................................13
Measure the Gelex stray light standard ....................................................................................................................................14
Measure the Gelex secondary turbidity standards ...................................................................................................................15
Calibration verification ..............................................................................................................................................................16
Optical system check................................................................................................................................................................16
Prepare a sample cell ......................................................................................................................................................................16
Clean the sample cell ...............................................................................................................................................................17
Indexing a single sample cell ....................................................................................................................................................18
Matching sample cells ..............................................................................................................................................................20
Prepare dilution water ...............................................................................................................................................................21
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