Xylem ProLab 1000 BENCH TOP pH METER User Manual

Page 49

ProLab 1000

Operation

ba75576e04

01/2011

Continuing with three-

point to five-point

calibration

(Buffer NIST/DIN)

Wait for the measurement with stability control to be completed
or Terminate stability control with

and accept the
calibration value.
The calibration display for the next buffer appears.

For two-point calibration, select Exit with 2 point calibration with
<

▲><▼> and confirm with

The calibration is completed as a two-point calibration.
The new calibration values are displayed as a message ([

i]).

You have the following options:
z Accept the new calibration values with

Subsequently, the calibration record is displayed and
downloaded to the interface at the same time.

z To switch to the measured value display without accepting

the new calibration values, press or .

[

i] Buffer value = 9.18

[

i] U = -167.0 mV

[

i] Temperature =

24.8 °C

Terminate stability control

[

i] Buffer series NIST/DIN

[

i] Immerse sensor in buffer 3

Exit with 2 point calibration

Continue

Thoroughly rinse the electrode with distilled water.

Immerse the electrode in buffer solution 3.

If necessary, measure the temperature of buffer 3 manually,
then enter and confirm it with <

▲><▼> and

in the

Set temperature setting.

Select Continue with <

▲><▼> and press

. The

buffer is measured.
The measured value is checked for stability (Stability control).