Xylem WTW pH/ION 3310, Руководство по эксплуатации

Страница: 43 / 78

pH/ION 3310 Ion concentration
ba77052d01 03/2014
43
7.2.4 Calibration standards
Use two to seven different standard solutions. The standard solutions have to
be selected in either increasing or decreasing order.
7.2.5 Calibration data
Displaying the cali-
bration data
The calibration record of the last calibration is to be found under the menu item,
<ENTER> / Calibration / Calibration record . To open it, press the <CAL__> key
in the measured value display.
Subsequently, you can transmit the displayed calibration data to the interface,
e.g. to a PC, with the
<F2> [USB output] key.
Displaying the cali-
bration data storage
The calibration records of the last calibrations (up to 10) are given in the menu,
<ENTER> / Calibration / Calibration data storage .
Select the unit of the standard solution and measurement result in
the
ISE setup / Unit menu.
Standard solution (Std 1 - 7) Values
Unit [mg/l] 0.010 ... 500.000
Unit [mol/l] 0.100 ... 5.000 µmol/l
10.00 ... 5.000 mmol/l
Unit [mg/kg] 0.010 ... 500.000
Unit [ppm] 0.010 ... 500.000
Unit [%] 0.001 ... 50.000
The measurement precision is also dependent on the selected
standard solutions. Therefore, the selected standard solutions
should cover the value range expected of the following concentra-
tion measurement.
If the measured electrode potential is outside the calibrated range,
the
[ISEErr] warning is displayed.