58Standard programs1. Press the Timer icon.2. Press OK to start the first timer.The timer will count down on the screen.3. To start the next timed activity for the Stored Program, pressthe Timer icon and OK.Note: Press Close to view the reading screen while the timer isrunning. The time will be shown on the lower left side instead of thedate.Note: Press Cancel to stop the timer midway through thecountdown.Note: The timer will beep when the timed interval ends.A general purpose timer is also available in many programs. Typethe timer icon and select General Timer. Enter the length of thetimed interval and press OK to start the timer. The timer will beepwhen the timed interval ends.5.4.4 Set the dilution factorThe Dilution Factor function is used to calculate the originalconcentration of a sample that has been diluted by a known ratio.1. Press Options>More…>Dilution Factor.The number entered at the dilution factor prompt will bemultiplied by the result to compensate for the adjustment.For example , if the sample has been diluted by a factor of 2,enter 2. The default setting of the dilution factor is turned off.2. Press OK to confirm. Press again OK.Note: When a dilution is in effect, the dilution icon will appear on thedisplay.Note: If using undiluted samples, set the dilution factor off again.
