Xylem handylab multi 12 User Manual
Page 32
Operation
handylab multi 12
32
ba75371e03
11/2009
Probe evaluation
After the calibration, the measuring instrument evaluates the current status
of the probe against the relative slope. The evaluation appears on the dis-
play. The relative slope has no effect on the measuring accuracy. Low values
indicate that the electrolyte will soon be depleted and the probe will have to
be regenerated.
Starting the
calibration
Proceed as follows to calibrate the instrument:
Note
The sponge in the air calibration vessel must be moist (not wet).
Display
Relative slope
S = 0.8 ... 1.25
S = 0.7 ... 0.8
S = 0.6 ... 0.7
E3
Eliminate the error according to
chapter 6 W
S < 0.6 or S > 1.25
1
Perform the preparatory activities according to section 4.3.1.
2
Keep the air calibration vessel ready.
3
Put the D. O. probe into the air calibration vessel.
4
Press the
pears. The sensor symbol displays the evaluation of the last
calibration (or no sensor symbol in the delivery state or after the
measurement parameter has been reset).