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Hach DR/850 - Page 394

Hach DR/850
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394
9.
The display will
show:
2:00 TIMER 3
Press:
ENTER
A 2-minute reaction
period will begin.
Note: A blue color will
develop if silica is present.
10. After the timer
beeps, place the blank
(solution without Amino
Acid F Reagent) into the
cell holder. Tightly
cover the sample cell
with the
instrument cap.
11. Press: ZERO
The cursor will move to
the right, then the
display will show:
0.00 mg/L SiO2
12. Place the sample
into the cell holder.
Tightly cover the sample
cell with the instrument
cap.
13. Press: READ
The cursor will move to
the right, then the result
in mg/L SiO2 will
be displayed.
Note: Use of the Standard
Adjust feature with each new
lot of reagent is highly
recommended. See Accuracy
Check.
SILICA, Low Range, continued

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