Hach DR/2010 Instrument Manual page 68

Scroll to the letter "o", capitalize the letter with the
accept it with the
Scroll to the 4 and change it to a subscript by pressing the
twice. Press the
Scroll to 2, change it to a superscript by pressing the
times; then press
Scroll to the minus sign, and press the
superscript.
To distinguish this low-range sulfate program from the sulfate
method already in memory, add
in the display. Scroll to the blank space character (the blank
appears between underline and the letter "a"). Accept it with the
key. You can enter up to four blank spaces and then enter
ENTER
L and R .
The display shows (for example):
 &&&&
14. After examining the display to verify that everything is correct, press
to accept and store the entire display.
ENTER
the .
DOWN ARROW
The display will show
&&&& 
15. If desired, press
instructions in this section as a guide. The instrument will ask for a
after you enter Symbol2. Multiplying the displayed reading by
Factor
the factor gives the result in an alternate chemical form. For example,
mg/L nitrate-nitrogen (NO
result as mg/L nitrate (NO
16. Press when the correct factor is displayed. Press
ENTER
the information for Alternate Form2 is entered.
key.
ENTER
key to accept.
ENTER
.
ENTER
LR
&&& #
&&& #
) JAH =JA. H
to store an alternate chemical form using the
ENTER
-
-N) is multiplied by 4.4 to express the
3
). Use the numeric keypad to enter a factor.
3
68
SHIFT
SHIFT
key twice to make it a
SHIFT
at the end of the symbol field
nm
5   4 
will flash. Press
Symbol
nm
EXIT
key and
key
SHIFT
key four
when all