Hanna-instruments HI 96704 Manual de usuario descargar pdf (Pagina 13)

13

• When the beeper sounds briefly and the

LCD displays dashes, the meter is ready.

The blinking “ZERO” indicates that the

instrument needs to be zeroed first.

• Fill one cuvette with 10 mL of unreacted

sample, up to the mark.

• Fill a second cuvette with 10 mL of

distilled water, up to the mark (this is

the blank).

• Add 12 drops of the HI 93704-0 reagent

to each cuvette. Replace the caps and

swirl the solutions.

• Place the blank into the cuvette holder

and ensure that the notch on the cap is

positioned securely into the groove.

• Press and hold READ/ /TIMER for three

seconds. The display will show the

countdown prior to measurement. The

beeper is playing a beep at the end of

countdown period.

Alternatively, wait for 12 minutes then

just press ZERO/CFM.

In both cases, the lamp, cuvette and

detector icons will appear on the display,

depending on the measurement phase.

10 mL

sample

10 mL

blank

12

3

6

9

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