Datasheet

Carlo Gavazzi Industri A/S

CD34CNFLFxxx

CD34CNFLFxxx ENG26/08/2019

Indication

Normal mode

Green LED Yellow LED Power Output

OFF OFF OFF OFF

ON OFF ON OFF

ON ON ON ON

Output short circuit

Green LED Yellow LED Output

OFF Flashes 4Hz Yellow LED ashes minimum 1 sec.

Teach by wire

Out of the box (Factory settings):

Typically, the sensor can be used without any additional calibration; it is designed to work with plastic tank

walls of approximately 0,5 to 6 mm in thickness and glass walls of approximately 0,5 to 4 mm in thickness. It

is important that the glass or plastic is nonconductive.

Calibration:

If the factory settings are insu󰀩cient, the sensor is teachable to either Full or Empty.

Calibration Full:

The sensor switch point is set below the actual detection value to ensure that slight changes in the application

will not a󰀨ect the sensing performance.

In most applications, the full calibration on a full tank or tube will be su󰀩cient.

In critical applications with large variations in media type and temperature, it can be an advantage to teach the

Full level with approximately 50 % of the active sensing surface covered.

Full calibration procedure:

•Connect teach wire to V+ for 2 - 7 seconds

•The green LED ashes 1 imp. per sec. and the yellow LED is OFF

•After successful calibration, the yellow LED ashes 3 times (with 1 Hz)

Calibration Empty:

The sensor switch point is set above the actual detection value to ensure that slight changes in the application

will not a󰀨ect the sensing performance.

In most applications, the Empty calibration on an empty tank or tube will be su󰀩cient.

In critical applications with a high amount of residue lm, moisture or foam build-up, an Empty calibration can

be performed with the build-up present.

Empty calibration procedure:

•Connect teach wire to V+ for 7 - 12 seconds

•The green LED ashes 1 imp. per sec. and the yellow LED is ON

•After successful calibration, the yellow LED ashes 3 times (with 1 Hz)

Cancel calibration procedure:

•Keep the teach wire connected to V+ for more than 14 seconds to abort teach procedure. The switch points

will remain unchanged.

•The green LED is o󰀨 and the yellow LED ashes (4 Hz)