wtw Multi 350i, Operating Manual

Page: 38 / 108

Operation Multi 350i
36
Continuing for two-point
calibration
( Calibration type TEC )
8 Thoroughly rinse the electrode with distilled water.
9 Immerse the electrode in buffer solution 2.
10 If the Set temperature menu item appears, measure and enter
the temperature of the buffer manually (measurement without
temperature sensor).
11 Select Continue with <
▲
> <
▼
> and press <MENU/ENTER> .
The buffer is measured.
The measured value is checked for stability (AutoRead).
12 Wait for the end of the AutoRead measurement or Terminate
AutoRead and accept the calibration value with
<MENU/ENTER> .
The calibration display for the next buffer appears.
13 For two-point calibration, select Exit with 2 point calibration with
<
▲
> <
▼
> and confirm with <MENU/ENTER> .
The calibration is completed as a two-point calibration.
The new calibration values are displayed as a message (
i
).
You have the following options:
!
Accept the new calibration values with <MENU/ENTER> .
Subsequently, the calibration record is displayed and output
to the interface at the same time.
!
To switch to the measured value display without accepting
the new calibration values, press
<M> or <ESC> .
i
Buffer value = 10.011
i
U = -177.0 mV
i
Temperature =
2
4.8 °C
Terminate AutoRead
pH <CAL>
i
Buffer recognition TEC
i
Immerse sensor in buffer 3
Exit with 2 point calibration
Continue
pH <CAL>