Metrohm 794 Basic Titrino - Manual (Page 16)

2.4. Tutorial
794 Basic Titrino
12
If more than one equivalence point has been found, the others can be viewed with
.
Calculation of the result: formula entry
<1>
2 x With this equivalence point a result can be calculated.
• Press the key.
• Press to move on to the formula entry. The display now shows "RS?". • Press "1", i.e. the first formula. You now can enter a formula. Note here the top inscrip-tion on the keys of the keypad and the numbers. The following symbols can be used:
EP# EP's with 1-digit number, e.g. EP1. RS# Previously calculated results, e.g. RS1 in the sec-ond formula. C## Calculation constant with 2-digit number, e.g. C01. C00 is reserved for the sample size. For the mean-ing of the calculation constants see page 53. Calculate the content of your hydrochloric acid in g/L: RS1=EP1*C01*C02/C00 End point*conc.(titrant)*molecular weight/sample size To correct a formula, delete it with .
• Confirm the formula with . • You may enter a text for the result output, see page 8. • Enter the desired number of decimal places for the result. • Select the desired unit g/L with , or type
2 x
With this equivalence point a result can be calculated.
• Press the key.
• Press to move on to the formula entry.
The display now shows "RS?".
• Press "1", i.e. the first formula.
You now can enter a formula. Note here the top inscrip-
tion on the keys of the keypad and the numbers. The
following symbols can be used:
EP# EP's with 1-digit number, e.g. EP1.
RS# Previously calculated results, e.g. RS1 in the sec-
ond formula.
C## Calculation constant with 2-digit number, e.g. C01.
C00 is reserved for the sample size. For the mean-
ing of the calculation constants see page 53.
Calculate the content of your hydrochloric acid in g/L:
RS1=EP1*C01*C02/C00
End point*conc.(titrant)*molecular weight/sample size
To correct a formula, delete it with .
• Confirm the formula with .
• You may enter a text for the result output, see page
8.
• Enter the desired number of decimal places for the
result.
• Select the desired unit g/L with
a text as unit, see page 8.
The Titrino prompts for the calculation of the next result.
Quit the formula entry by pressing twice.
In order to be able to calculate the result, enter the calculation constants used in the for-
mula.
def
>formula
RS?
RS1=
RS1=EP1*C01*C02/C00
>formula
RS1 text RS1
>formula
RS1 decimal places 2
>formula
RS1 unit %
RS?