Selecting A Predefined Buffer Group - Mettler Toledo SevenGo Duo SG23 Instrucciones De Manejo

Operating the pH/conductivity meter SG23
READ/AUTO END-
POINT
CAL
MODE/EXIT
MENU
STORE
RECALL
4.4 Calibration
4.4.1 Buffer groups
You can run one-, two- and three-point pH calibrations with this meter. If you select your calibration buf-
fer group from one of the four predefined groups defined in the meter, the buffers are automatically recog-
nized and displayed during calibration (auto buffer recognition).
The four predefined buffer groups are:
B1
B2
B3
B4
Tables (for buffers B1...B4) for automatic temperature compensation are programmed in the meter (see
"Appen dix").
You can also follow the buffer setting procedure described below to define your own buffer group, but in
this case auto buffer recognition does not work during calibration.

4.4.2 Selecting a predefined buffer group

a) Press and hold
b) Use
c) Press READ to confirm your selection when the desired buffer group blinks.
10
Start or endpoint measurement
Confirm setting
Store entered value
Exit setting and go back to mea sure-
ment screen
Start calibration
Switch measurement mode
Stop alternative display
Discard setting
Exit settings or menu
Enter MTC temperature
Select reference temperature
Set temperature correction
Set TDS factor
Select measurement modes for alter nat-
ing display
Store current reading to memory
Increase value during setting
Scroll up through the memory
Recall stored data
Decrease value during setting
Scroll down through the memory
Start meter self-diagnosis
7.00 4.00
7.00 4.01
7.00 4.00
6.86 4.01
until the current buffer group blinks.
or to select another buffer group.
Turn auto endpoint on or off
Review the last calibration data
Start alternating display between pH and
con duc tiv i ty channel
Select pH buffer group
Select conductivity standard
Review the latest calibration data
10.01 1.68
9.21 2.00
9.00 2.00
9.18 1.68
(at 25 °C)
11.00 (at 25 °C)
12.00 (at 20 °C)
(at 25 °C)
pH/conductivity meter SG23