SCHOTT Instruments ProLab 2000, Руководство по эксплуатации

Страница: 56 / 125

Operation ProLab 2000
56 ba75577e03 11/2009
Temperature while
calibrating and
measuring
For precise ISE measurements the temperature difference between
measurement and calibration should not be greater that 2 K. Therefore,
adjust the temperature of the standard and measuring solutions
accordingly. If the temperature difference is greater the
[TempErr]
warning appears in the measured value display.
ISE Cal This is the conventional two-point or three-point calibration
procedure that uses 2 or 3 freely selectable standard solutions. The
concentration expected in the measurement determines the
concentration of the calibration standards.
Stability control During calibration, the stability control is automatically activated.
The current measurement with stability control can be terminated at
any time (accepting the current value).
Calibration record When finishing a calibration, the new calibration values are displayed
as an informative message (
i
symbol) first. Then you can decide
whether you want to take over these values of the new calibration or
whether you want to continue measuring with the old calibration data.
After accepting the new calibration values the calibration record is
displayed.
Display of calibration
data and download to
interface
You can have the data of the last calibration displayed (see page 87).
Subsequently, you can transmit the displayed calibration data to the
interface, e. g. to a printer or PC, with the
<PRINT> key.
Note
The calibration record is automatically transmitted to the interface after
calibrating.
Sample record:
Calibration evaluation After calibrating, the meter automatically evaluates the calibration.
Printing date 26.04.06 16:13
ProLab 2000
Ser. no. 06249876
USER ID : 1234567890
Calibration ISE
Calibration date 20.04.06 10:14:03
USER ID : 1234567890
Standard 1 0.010 mg/l
Standard 2 0.020 mg/l
Voltage 1 0.0 mV 24.0 °C
Voltage 2 9.0 mV 24.0 °C
Slope 29.9 mV
Sensor +++