Hach DR 2800, Руководство пользователя, Страница: 35 / 96

35
Standard Operations
A general purpose timer is also available in many programs. When
the timer icon is visible, press the icon and select
GENERAL TIMER
.
A new screen will appear. Enter the length of the timed interval and
press
OK
to start the timer. The timer will beep when the timed
interval ends.
5.4.4 Setting the Dilution Factor
The Dilution Factor function is used to calculate the original
concentration of a sample that has been diluted by a known ratio.
For example, dilution factor can bring the analyzed concentration
within the test range.
1. Press
OPTIONS
>
MORE
>
DILUTION FACTOR
.
The number entered at the dilution factor prompt will be
multiplied by the result to compensate for the adjustment and
display the concentration of the original (undiluted) sample.
For example, if the sample has been diluted by a factor of 2,
enter 2. The default setting of the dilution factor is 1,
corresponding to no dilution.
2. Press
OK
to confirm. Press
OK
again.
Note: When a dilution is in effect, the dilution icon will appear on
the display.
Note: If using undiluted samples, set the dilution factor to 1 again.