Hach-Lange DR 5000 Pour-Thru Cell Kit Installation - Manual (Page 7)

7
DR5000 Pour-Thru Cell Kit Installation
Using the Pour-Thru Cell
Most HACH methods prescribe the use of round cells.
When a pour-thru cell is used, the measurement results of these HACH methods must be
multiplied by a dilution factor of 0.95 or revised with the help of a standard adjustment. The
appropriately revised method can be stored as a user program. If the use of a pour-thru
cell is prescribed in a HACH method, no adjustment is needed.
A pour-thru cell can be used for a HACH method if the prescribed sample volume is 25 ml.
Although the pour-thru cell can be used for the following HACH methods, the cell must be
thoroughly purged with distilled water between individual samples.
The Pour-Thru Cell can also be used to run Nitrogen, Ammonia, Nessler Method and TKN
chemistries. Clean the cell by pouring a few sodium thiosulfate pentahydrate crystals into
the cell. Rinse out the crystals with deionized water.
WARNING:
The pour-through cell cannot be used for the following HACH methods.
Table 1 HACH methods for which additional purging of the pour-through cell is
necessary
Aluminum, Aluminon Chlorine Dioxide, LR Cobalt, PAN
Copper, Porphyrin Hardness, Calmagite Manganese, LR, PAN
Nickel, PAN Nitrate, MR Nitrate, HR
Table 2 HACH methods for which the pour-through cell cannot be used
Aluminum ECR Arsenic Barium Boron, Carmine
Cyanuric Acid Fluoride Formaldehyde Lead, LeadTrak
Mercury Nickel, Heptoxime Nitrite, HR PCB
Phenols Potassium Selenium Silver
Suspended Solids Sulfate TPH Volatile Acids
Zinc Surfactants, Anionic (Detergents)