Calibration Data - wtw Cond 7310 Operating Manual

Cond 7310
Displaying the cali-
bration data
ba75933e04 06/2013
 0.800 ... 0.880 cm
(e.g. KLE 325 with a nominal cell constant of 0.840
The cell constant is determined in the control standard, 0.01 mol/l KCl. Cell
constants outside the ranges quoted above cannot be calibrated.
In the delivery condition, the calibrated cell constant of the meter is set to 0.475
-1
cm (conductivity measuring cell, TetraCon 325).
For this calibration procedure, the Measuring cell setting must be set to cal in
the Measurement menu. Proceed as follows to determine the cell constant:
1. Connect the conductivity measuring cell to the measuring instrument.
2. In the measured value display, select the conductivity parameter with
<M>.
3. Start the calibration with <CAL>.
The cell constant that was calibrated last is displayed.
ϰ
0.479 1
25.1
[Tr25][nLF][ 0.479 1/cm]
01.07.2011
4. Immerse the conductivity measuring cell in the control standard solu-
tion, 0.01 mol/l KCI.
5. Start the measurement with <ENTER>.
The [AR] status indicator is displayed. A progress bar is displayed and
the display of the measured parameter flashes.
6. Wait for the end of the measurement with stability control or accept the
calibration value with <ENTER>.
The calibration record is displayed and output to the interface.
7. Using <F1>/[Continue] or <ENTER>, switch to the measured value
display.

5.2.4 Calibration data

The calibration record is automatically transmitted to the interface
after calibrating.
The calibration record of the last calibration is to be found under the menu item,
<F1> / [Menu] / Calibration / Calibration record. To open it, press the <CAL_>
key in the measured value display.
-1
/cm
°C
08:00
Conductivity
-1
)
25