Configuration; General Comments; Measuring Range; Measuring Range Of The Conductivity - Burkert 8223 Manuel Utilisateur

3.1 GENERAL COMMENTS

Configuration is done by means of accessible switches after having unscrewed the plugs
counterclockwise and removed them.
Push-button
Green LED
- SW1 allows the selection of:
- the measuring range (switches 1 and 2)
- the filtering level of the conductivity (switches 3 and 4)
- SW2 allows the selection of the temperature compensation or the
transmission of the temperature on the 4-20 mA output.
- SW3 allows the selection of the current output mode, sinking or sourcing.
- The push-button allows the calibration of the sensor «zero conductivity» point.

3.2 MEASURING RANGE

The 4-20 mA output delivers a current which is proportional to the compensated or not
compensated conductivity or to the measured temperature. For the con duc tiv i ty, the user
may choose the mea sur ing range.
When the conductivity exceeds the full scale by 10%, the current output delivers a 22 mA
current. As soon as the conductivity is again equal or inferior to the full scale value, the current
output delivers a current between 4 and 20 mA.

3.2.1 Measuring range of the conductivity

SW1 makes it possible to select the conductivity mea sur ing range:
- a 4 mA current indicates a conductivity which is equal to 0 mSiemens/cm
(less than 2% of the selected full scale)

CONFIGURATION

SW3
SW1
Position of the switches of SW1
Measuring range
1
0 to 1 mS/cm OFF
0 to 10 mS/cm
OFF
(default value)
0 to 100 mS/cm ON
0 to 1 S/cm ON
6
SW2
Red LED
2
OFF
ON
OFF
ON
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