2Nd And 3Rd Reagent Addition And Stirring; Rinsing - Hitachi 902 Service Manual

(f) 2nd and 3rd reagent addition and stirring
About 1.5 minutes later, the 2nd reagent is added to the reaction cuvette, and about
5 minutes later the 3rd reagent is added. As with the 1st reagent addition, the
reagent pipetting mechanism aspirates the reagent and the necessary volume is
discharged into the reaction cuvette from the reagent probe. After discharging each
reagent, the reacting solution is stirred by the stirring mechanism. Note that if the
reagent pipetting volume is not set in the analytical parameters for a certain reagent
(1st to 3rd), the addition and stirring for that reagent will not be made. Also, stirring
without reagent pipetting can be specified as well.
(g) Rinsing
At the completion of analysis, the reacting solution is aspirated and drained and
deionized water is injected into the reaction cuvettes to rinse them out.
(h) Analytical result output
The measured absorbance data undergoes concentration conversion at the data
processor, is output to the printer, transferred online to the host computer and saved
in a floppy disk. Values from which the water blank value is subtracted are used for
the data processing.
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