Hach-Lange DR 3800 User Manual - Manual (Page 74)

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Advanced Operations
6.1.1.4 Store a user program
The input of the basic data is complete. An overview of the variable
program data is displayed.
1. To enter more specifications or change existing ones, highlight
the appropriate line and press Edit.
2. Select Store to save the user program.
6.1.1.5 Additional user-defined parameters and functions
In addition to the previously defined basic data, additional
parameters and functions can be defined for user programs:
• measuring range upper and lower limits
• timer functions
• chemical forms
Upper and lower limits of the measuring range
It is possible to enter a maximum (upper) and minimum (lower)
measurement value. An error message is displayed if a reading is
above the upper limit or below the lower limit.
3. Highlight the appropriate line in the overview of the program
data and press Edit.
4. Set On and press the 0.000 key to enter the measuring range
limit. Confirm the entry by pressing OK.
Timer 1 / Timer 2 / Timer 3 / Timer 4:
This function can define time intervals for up to four timers. Timer
designations such as Shake, Wait and Swirl can be assigned.
5. Highlight the appropriate line in the overview of the program
data and press Edit.
6. The timers are activated or deactivated with the check boxes in
the left part of the display. In the next column, a selection can
be made from a list of names that designate the corresponding
work step. In the third column, the times for each timer are
entered (in mm:ss).