Hach-Lange DR 3800 User Manual - Manual (Page 58)

58
Standard Operations
Enter the Formula, Concentration Units, Designation,
Measuring Ranges
For detailed information on entering the Formula, see
section 6.1.2
on page 76 .
Check the working procedure in advance to determine whether this
information needs to be changed.
1. Highlight the Formula line in the data overview and press Edit.
2. Select the formula, press Edit and use the alphanumeric
keypad to enter the data specified in the working procedure (for
C1=, C2=, units, name, measuring range limits, etc.).
Enter the Variables (Factors, Wavelength and Coversion
Factors)
For detailed information on entering the Variables, see
section 6.1.2
on page 76 .
Check the working procedure in advance to determine whether this
point needs to be changed.
1. Highlight the Variables line in the data overview and press
Edit.
2. Select the variable, press Edit and use the alphanumeric
keypad to enter the data specified in the working procedure (for
F1, F2,
λ1, U1 etc.). Confirm each entry with OK.
Abbreviation of Variables:
F1: Factor 1
F2: Factor 2
λ1: Wavelength 1
U1: Conversion Factor 1 for the first chemical form
U2: Conversion Factor 2 for additional chemical forms etc.
Timer 1, Timer 2, Timer 3 and Timer 4:
The timers are activated or deactivated with the control boxes on
the left of the display. In the next column, a selection can be made
from a list of names that describe the corresponding work step. In
the third column, the times for each active timer are entered.