Thermo Fisher Scientific CyberScan TB 1000 Turbidimeter - Manual (Page 14)

CyberScan TB1000
11
10 Accessories and Replacement Parts List
Accessory or Replacement Part Order Code Number
CyberScan TB1000 W Calibration Set with EC-TBDWCALKT EC-TBDW1000
CyberScan TB1000 IR Calibration Set with EC-TBDIRCALKT EC-TBDIR1000
Calibration kit set for EC-TBDW1000 (0.02 NTU, 10.0 NTU, 1000 NTU) EC-TBDWCALKT
Calibration kit set for EC-TBDIR1000 (0.02 NTU, 10.0 NTU, 1000 NTU) EC-TBDIRCALKT
Lamp Module – Tungsten Filament EC-TNGSTNLMP
Pour Through Assembly EC-PORTHASSY
Sample Cuvettes – 3 pack EC-TBDCUV03KT
Cuvette Maintenance Kit EC-CUVMNTCKT
Internal Batteries (set of 2) EC-BATT3032
RS232 Cable for Serial Printer EC-MCR0100CBL
120 VAC/12 VDC Power Adapter (50/60 Hz) EC-120ADA800
220 VAC/12 VDC Power Adapter (50/60 Hz) EC-220ADA800
10.1 Glossary
Formazin Turbidity Units (FTU): see Nephelometric Turbidity Units
Indexing a Cuvette: The United States Environmental Protection Agency (US EPA) recommends that cuvettes
used for turbidimeter calibration or sample measurement be indexed. To index a cuvette with a sample in it,
slowly rotate the cuvette throughout one complete revolution (360°). While rotating the sample cuvette, observe
the display and locate the position that the cuvette is in which provides the lowest turbidity reading. This position
is the indexed position of the cuvette.
Nephelometric Turbidity Units (NTU): Unit of measure used when comparing the light scattered by a liquid media
to the light scattered by a known concentration of Formazin Polymer. This unit of measure is recognized as a
measure of the optical clarity of an aqueous sample. NTU is the accepted unit of measurement for turbidity.
Turbidity: 1) A measure of the attenuation of a radiant flux as it passes through a liquid media. 2) Optical clarity of
a liquid, 3) a phenomena caused by the presence of undissolved matter in liquid media.