TruLab pH/ISE 1320
Ion concentration
ba76161e01
08/2015
51
8.2.4 Calibration standards
Use two to seven different standard solutions. The standard solutions have to
be selected in either increasing or decreasing order.
8.2.5 Calibration data
Displaying the
calibration data
The calibration record of the last calibration is to be found under the menu item,
<MENU/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
<F2>
[USB output]
.
Displaying the
calibration data
storage
The calibration records of the last calibrations (up to 10) are given in the menu,
<MENU/ENTER>
/ ISE /
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 subsequent concen-
tration measurement.
If the measured electrode potential is outside the calibrated range,
the
[ISEErr]
warning is displayed.
