Pc keyboard, Periodicity, Ph0(25) – Hach-Lange TITRALAB 840_845 Reference Manual User Manual
Page 129: Ph buffer, Titra lab
Titra
Lab
®
TitraLab 840 and 845 Reference Manual
Page 129
PC keyboard
Specify the PC keyboard in use. For example, English (US) for a
Qwerty keyboard.
Enter in:
Setup menu > Configuration
Range available:
English (US), French, German, Spanish, Italian, Danish, Swedish.
Periodicity
Available if Electrode calibration request = Yes or Titre = Calibrate
Maximum period of time between two calibrations. If the period of time
is exceeded, measurements can no longer be performed using this
electrode or reagent. A new calibration is required except if
Demand : Unlocked has been set in the SETUP > Access Rou-
tine mode menu.
Enter in:
Edit electrode menu
Edit reagent menu
Range available:
1 to 999 days
pH0(25)
This is the pH of the solution at 25°C at which the measured electrode
potential is equal to zero. The potential developed depends on both
electrodes; the reference and the glass. These potentials may vary to
bring about an electrode drift. This drift can be compensated by
frequent calibrations.
Normally the following ranges are used by default (6.850 pH and
7.200 pH)
Enter in:
Edit electrode > Results
Range available:
pH(0)25 min. = -9.000 pH to pH0(25) max.
pH0(25) max. = pH0(25) min. to 23.000 pH
pH buffer