Hach-Lange BIOGAS User Manual - Manual (Page 42)

42
Standard Operations
10. Select Blank:
A blank or blank sample is usually a solvent
used to dissolve or dilute the sample. This blank
may contain traces of the species you are
analysing.
•
Select Yes for Blank when you want to sub-
tract the volume of titrant used to titrate the
solvent from the volume found for the dis-
solved or diluted sample.Enter the unit: mM
= mmol/l, M = mol/l, mN = meq/l or N =
eq/l). The unit is indicated on the reagent
bottle.
5.10.3.2 Enter the method parameters
1. Enter the Edit method menu and press 1
(Method parameters).
The Method parameters are general
parameters concerning the electrode and
reagent used by the method.
2. Press 2 (Sample).
The Sample parameters concerning the
sample amount analysed.
3. Press 3 (Results).
The Results parameters defining the results
and stoichiometric coefficients for the chemical
reaction (if required).
4. Press 4 (Printouts).
The Printouts parameters defining the analysis
report to be printed.
5.11 Run analyses
5.11.1 Introduction
5.11.1.1 Working in Supervisor mode
When programming in “SUPERVISOR” mode, it is
recommended to work in stages. These stages
should
be carried out in the order described below:
1. Define your electrode(s)