2
TurbiDirect_6 02/2019
Table of contents
Part 1 Descriptions
........................................................................................... 5
1.1
General description .......................................................................................... 6
1.2
Operating principles ......................................................................................... 6
1.3
Factory calibration ............................................................................................ 7
1.4
Important Notes ............................................................................................... 7
1.4.1
Guidelines for turbidity measurements ............................................................. 7
1.4.2
Cleaning of vials & sampling containers ............................................................ 8
Part 2 Operating manual
.............................................................................. 9
2.1 Operation
..................................................................................................... 10
2.1.1 Commissioning .............................................................................................. 10
2.1.2
Saving data – Important Notes ....................................................................... 10
2.1.3
Replacement of rechargeable batteries resp. Lithium-battery .......................... 10
2.1.4
Charging the rechargeable batteries ............................................................... 10
2.1.5 Fuse ............................................................................................................... 11
2.1.6
Protective caps ............................................................................................... 11
2.1.7
Instrument view ............................................................................................. 11
2.2
Overview of funktion keys
......................................................................... 12
2.2.1 Overview ........................................................................................................ 12
2.1.3
Displaying date and time ................................................................................ 12
2.2.3
User countdown ............................................................................................. 13
2.3
Operation mode
.......................................................................................... 14
2.3.1
Automatic switch off ...................................................................................... 14
2.3.2
Turbidity measurement ................................................................................... 14
2.3.2.1
Read/ Avg key - measurement with Signal Average ......................................... 14
2.3.2.2
Read key – quick measurement ...................................................................... 14
2.3.2.3
Performing Turbidity measurement ................................................................. 15
2.3.3
Storing results ................................................................................................ 16
2.3.4
Printing results ............................................................................................... 17
2.3.5
User calibration .............................................................................................. 18
2.3.5.1
When to calibrate ........................................................................................... 18
2.3.5.2
Calibration procedure ..................................................................................... 18
2.3.6
Calibration standards ..................................................................................... 19
2.3.6.1
T-CAL standards – correct storage and using ................................................... 19
2.3.7
Formazin standards – preparation and handling .............................................. 20
