KROHNE OPTISENS CAC 050 EN - Manual (Page 16)

Manual OPTISENS CAC 050 / IAC 050
OPTISENS CAC 050 / IAC 050 16
4.3 Cable compensation and averaging
Main menu
.
.
Basic settings Basic settings
.
.
Cable compensation
Cable comp.
.
0.00 mS
press
& simultaneously
.
.
.
Averaging
Averaging Averaging
ON
4.3.1
Cable compensation (zero point correction)
The cable connecting the sensor to the device can cause a capacitive error. To detect and eliminate this
error, connect the sensor to the device and let the dry sensor hang free in the air. If the measured value
displayed is not zero, then compensate by pressing keys
and . Now the value displayed is zero.
4.3.2 Averaging
Especially in the lower ranges the signal might become a bit unstable, due to the very high resistance of the
solution. In that case you can smooth out the signal by averaging over subsequent measurements. When the
averaging function is activated, the average is displayed instead of the single measured values.
4.4
Temperature compensation
Main menu
Automatic
compensation Manual
compensation
Temp. comp. Temp. comp. Temp. comp.
. Auto comp. Manual comp.
. Temperature
. 25.0°C
.
.
Basic settings
Calibration
temperature
Basic settings Cal. temp. Cal. temp.
. 0.0°C
.
.
.
Temperature
coefficient
Temp. coeff. Temp. coeff.
2.5%/K
Select between two ways of compensation:
1) Automatic compensation with temperature sensor
Mind that the temperature sensor should always measure the temperature around the conductivity sensor.
When conductivity sensor and temperature sensor are not immersed in the same solution, better switch to
manual compensation.
2) Manual compensation
If the temperature can be regarded as constant, you can enter the temperature manually instead of
measuring it continuously. The device will then compensate the temperature error of this temperature.