Xylem Lab 850, up to serial number 09470314 User Manual
Page 25
Lab 850
Operation
25
ba75553e03
01/2006
Displaying the
calibration data
You can display the data of the last calibration (see page 30).
Calibration evaluation
After calibrating, the meter automatically evaluates the calibration. The
zero point and slope are evaluated separately. The worse evaluation of
both is taken into account.The evaluation appears on the display as the
CalClock and in the calibration record.
Preparatory activities
CalClock
Zero point
[mV]
Slope
[mV/pH]
-15 ... +15
-60.5 ... -58
-20 ... +20
-58 ... -57
-25 ... +25
-61 ... -60.5
or
-57 ... -56
-30 ... +30
-62 ... -61
or
-56 ... -50
Clean the electrode
according to the
sensor operating
manual
CalError
< -30 or
> 30
... -62 or
... -50
Eliminate the error
according to chapter
6 W
1
Switch on the meter with
2
Connect a pH electrode to the meter.
3
Keep the buffer solutions ready.
4
Adjust the temperature of the solutions and measure the
current temperature if the measurement is made without
temperature sensor.
5
Set the buffer set to be used for calibration as necessary.