Hach 2100AN - Page 23

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7. Repeat step 6 until

the lowest value is

shown on the display.

8. Put an orientation

mark on the marking

band near the top of the

sample cell where the

lowest value is shown.

English 21

Main Page

Table of Contents3
Specifications7
General Information8
Safety Information9
Use of Hazard Information9
Precautionary Labels9
Certification9
Product Overview10
Product Components11
Installation12
Put Paper in the Printer12
User Interface12
Startup14
Turn the Instrument on14
Turn the Keypad Sound off (Optional)14
Set the Date and Time14
Show the Current Time (Optional)15
Standard Operation15
Calibrate the Turbidimeter with Stablcal ® Standards15
Prepare the Stablcal Standards15
Calibration Notes15
Stablcal Calibration Procedure16
Stablcal Standards Storage17
Using Gelex Secondary Standards17
Gelex Notes17
Measure the Gelex Stray Light Standard18
Measure the Gelex Secondary Turbidity Standards19
Calibration Verification20
Optical System Check20
Prepare a Sample Cell20
Clean the Sample Cell21
Indexing a Single Sample Cell22
Matching Sample Cells24
Prepare Dilution Water26
Prepare the Sample26
Prepare a Representative Sample26
Remove Air Bubbles from the Sample26
Apply a Vacuum26
Use an Ultrasonic Bath26
Apply Heat27
Prevent Condensation on a Sample Cell27
Measure Over-Range Samples27
Sample Dilution27
Turbidity Measurement28
Measurement Notes28
Turbidity Measurement Procedure29
Absorbance and Transmittance Measurement30
Measurement Notes30
Absorbance and Transmittance Measurement Procedure31
Color Measurement32
Measurement Notes32
Color Measurement and Calibration Procedure33
Measurement Techniques35
Manual or Automatic Ranging35
Signal Averaging on or off35
Ratio on or off35
Using the Air Purge System36
Using a Flow Cell36
Install a Flow Cell37
Clean a Flow Cell Assembly37
Flow Cell Maintenance37
Flow Cell Operation37
Flow Cell Storage38
Using a Manual Flow Cell38
Using an Automated Flow Cell38
Measurement Notes39
Static or Dynamic Measurement Procedure40
Use a Cell Adapter41
Install a Cell Adapter42
Remove a Cell Adapter42
Using the Optional Filter Assemblies42
Application Development Using Alternate Wavelengths42
Connect to a Printer or Computer43
Configure the Printer Output43
Configure the RS232 Connection43
Computer (RS232) Commands43
Connect to a Data Recorder44
Configure the Data Recorder Output44
Advanced Operation44
Calibrate the Turbidimeter with Formazin Standards44
Prepare Formazin Standards45
Calibration Notes45
Formazin Calibration Procedure46
Making 4000-NTU Formazin Stock Solution48
Calibrate the Turbidimeter with User-Selected Formazin Standards48
Prepare Formazin Standards - User Selected48
Change the Calibration Points48
Special Research Applications49
Application Specific Methods49
Application Specific Calibration49
Initial ASC Entry50
Program New ASC Data50
Make a Print of ASC Data Points50
Change an ASC Unit Name or One ASC Data Point51
Delete One ASC Data Point51
Delete All the ASC Data Points52
Maintenance52
Clean the Instrument52
Change the Filter Assembly52
Clean the Filter Assembly52
Replace the Lamp52
Replace a Fuse55
Troubleshooting55
Error Codes55
Diagnostic Codes56
Delete Calibration Data57
Flashing 9S57
Flashing 0S57
Replacement Parts and Accessories57

Hach 2100AN - Page 23

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