Hach-Lange 2100 N Laboratory Turbidimeter User Manual - Manual (Page 4)

Prepare the sample ..........................................................................................................................................................................22
Prepare a representative sample ..............................................................................................................................................22
Remove air bubbles from the sample .......................................................................................................................................22
Apply a vacuum .................................................................................................................................................................22
Use an ultrasonic bath .......................................................................................................................................................22
Apply heat..........................................................................................................................................................................22
Prevent condensation on a sample cell ....................................................................................................................................23
Measure over-range samples ...................................................................................................................................................23
Sample dilution ..................................................................................................................................................................23
Turbidity measurement ....................................................................................................................................................................24
Measurement notes ..................................................................................................................................................................24
Turbidity measurement procedure ............................................................................................................................................25
Measurement techniques .................................................................................................................................................................26
Manual or automatic ranging ....................................................................................................................................................26
Signal averaging on or off .........................................................................................................................................................26
Ratio on or off...........................................................................................................................................................................27
Using the air purge system .......................................................................................................................................................27
Using a flow cell ........................................................................................................................................................................28
Install a flow cell ................................................................................................................................................................28
Clean a flow cell assembly ................................................................................................................................................28
Flow cell maintenance .......................................................................................................................................................28
Flow cell operation .............................................................................................................................................................28
Flow cell storage ................................................................................................................................................................29
Using a manual flow cell ....................................................................................................................................................29
Use a cell adapter .....................................................................................................................................................................29
Install a cell adapter ...........................................................................................................................................................29
Remove a cell adapter .......................................................................................................................................................30
Connect to a printer or computer .....................................................................................................................................................30
Configure the printer output .............................................................................................................................................................30
Configure the RS232 connection .....................................................................................................................................................30
Configure a Citizen Model iDP 562RSL II printer .............................................................................................................................30
Computer (RS232) commands ........................................................................................................................................................31
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