MultiLab 4010-1W
pH value
ba76141e07
08/2018
31
5.2.5
Carrying out manual calibration (ConCal)
Make sure that, in the menu for measurement and calibration settings (in the
menu pH/
<ENTER>
/
Calibration
/
Buffer
) the buffer set
ConCal
is selected
Use one to five buffer solutions in any order.
The pH values of the buffer solutions have to differ by at least one pH unit.
17.
Wait for the end of the measurement with stability control (beep,
[HOLD][AR] status indicator), or take over the calibrated value with
<ENTER>
.
Calibration is automatically completed after the last buffer of a buf-
fer set has been measured. Then the calibration record is dis-
played.
The calibration line is determined by linear regression.
If single-point calibration was set in the menu, the calibration proce-
dure is automatically finished with the measurement of buffer solu-
tion 1 and the calibration record is displayed.
1.
Connect the pH sensor to the meter.
The pH measuring window is displayed.
2.
Keep the buffer solutions ready.
3.
Start the calibration with
<CAL>
.
The calibration display for the first buffer appears (voltage display).
4.
Thoroughly rinse the sensor with deionized water.
5.
Immerse the pH sensor in buffer solution 1.
6.
Start the measurement with
<ENTER>
.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter flashes.
pH
0.0
24.8
°C
ConCal
1
01.07.2011
08:00
Buffer
mV
