2 - defrosting end command with contact normally open: on clos- ing the input a defrosting cycle is ended if in progress or defrosting is inhibited.
= 3 - External alarm signal with contact normally open: on closing the input the alarm is activated and the instrument visualises AL and the measured temperature alternately on the display.
= -1 - defrosting commencement command with contact normally closed : similar to “diF”=1 but with function logic reversed.
= -2 - defrosting end command with contact normally closed : simi- lar to “diF”=2 but with function logic reversed.
= -3 - External alarm signal with contact normally closed : similar to “diF”=3 but with function logic reversed.
4.8 - FUNCTIONING OF KEY “U”
The U key function can be defined by the parameter “USrb” and can be configured for the following functions:
= OFF - The key U carries out no function.
= 1 - Pressing the key for at least 1 second, it is possible to switch the instrument from the ON status to Stand-by status and vice versa.
4.9 - PARAMETERS CONFIGURATION BY “KEY01”
The instrument is equipped with a connector that allows the trans- fer from and toward the instrument of the functioning parameters through the device TECNOLOGIC KEY01 with 5 poles connector. This device it’s mainly useable for the serial programming of the in- struments which need to have the same parameters configuration or to keep a copy of the programming of an instrument and allow its rapid retransmission.
To use the device KEY01 it’s necessary that the device or instru- ment are being supplied.