Xylem Lab 970 - Manual (Page 27)

Lab 970 Operation
27 ba75558e03 11/2009
Note
If the error message E3 appears, refer to
CHAPTER 6 W HAT TO DO IF ...
( PAGE 55).
Stability control During calibration, the stability control is automatically activated.
Note
This method of automatically determining the cell constant by
calibration in the 0.01 mol/l KCL control standard can only be used for
measuring cells with cell constants in the ranges
0.450 ... 0.500 cm
-1
, 0.585 ... 0.715 cm
-1
or 0.800 ... 1.200 cm
-1
.
2 Press or
_
> to confirm the selection of CAL
CELL.
3 Immerse the measuring cell in the control standard solution,
0.01 mol/l KCI.
4 Start the calibration with .
The determination of the cell constant with stability control
starts.
The
display indicator flashes until there is a stable signal.
The determined cell constant is displayed for 10 seconds. The
meter stores the cell constant automatically.
After this the meter switches to the measuring mode.