Calibration 8
Procedure
For most applications it is recommended to start with pH 7.01 buffer (or pH 6.86).
To restore factory defaults, press and hold the ON/OFF button. “
CAL
CLR
” is displayed.
Note
: It is recommended to calibrate the electrode with buffers at the temperature it will be used at.
Stand-Alone Tester (Up to Three-Point Calibration)
1. Rinse the electrode tip with purified water and blot dry. Then rinse with the buffer being used for calibration.
2. Press and hold ON/OFF button until “
CAL
MODE
” is displayed.
3. When “
7.01
USE
” or “
6.86
USE
” is displayed with “CAL” tag blinking, place the tip of the electrode
in the correct buffer.
CAL
MODE
7.01
USE
4. When the buffer has been recognized, “REC“ is displayed.
“
WAIT
” is displayed with the stability indicator (
#
) blinking until the reading is stable. Wait until the
measurement is stored and the stability indicator disappears.
7.01
REC
#
7..01
WAIT
5. To save a one-point calibration and return to measurement mode, press the ON/OFF button.
“
CAL
SAVE
” is displayed briefly.
With 2P option selected
6. Place the tip of the electrode in the second buffer rinse beaker, then in the second calibration buffer. Wait
until the measurement is stored and the stability indicator disappears.
7. After the second point has been stored, “
CAL
SAVE
” is displayed briefly and the tester will return to
measurement mode automatically.
With 3P option selected
6. Place the tip of the electrode in the second buffer rinse beaker, then in the second calibration buffer. Wait
until the measurement is stored and the stability indicator disappears.
7. Place the tip of the electrode in the third buffer rinse beaker, then in the third calibration buffer. Wait
until the measurement is stored and the stability indicator disappears.
8. After the third point has been stored, “
CAL
SAVE
” is displayed briefly and the tester will return to
measurement mode automatically.
With Hanna Lab App (Up to Four-Point Calibration)
Connect the tester to the Hanna Lab App and follow the calibration procedure.
See the App Help section for the calibration procedure.
