Hach DR 5000 用户手册

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页码 136
44
Standard Operations
5.4.3 Use of program timers
Some procedures do not require the use of timers. Other 
procedures require several timers. These timers are 
pre-programmed into each Stored Program, along with a 
description of the activity to be performed during the timed period.
1. Press the Timer icon on the display.
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, press 
the Timer icon and OK.
Note: Press Close to view the measurement screen while the timer is 
running. The time will be shown left side bottom instead of the date.
Note: Press Cancel to stop the timer midway through the countdown.
Note: The Timer will beep when the end of the running time is reached.
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 Set the reading mode
1. To highlight the required mode, press Reading Mode.
2. Select the required mode, then press OK, then Return to return 
to the result display.