fafnir TORRIX XTS Series, Техническая документация инструкция

Страница: 18 / 52

Page 15 / 47 Electrical connection
5.3 Wiring
The TORRIX XTS level sensors may only be wired with the power disconnected.
The terminal compartment is accessible after removing the rear screw cover from the probe
head. To do this, screw the locking screw of the cover into the housing with a 3 mm Allen key.
After the wiring has been completed, the cover must be screwed on again and secured
against unintentional loosening.
The electrical connection is made using the push-in PCB terminal clamps.
Fine-wire conductors with wire-end ferrules and single-wire conductors can be plugged in
directly. The terminal clamps can be unlocked with a screwdriver to insert or remove the
conductors. The blade width should be 3.5 x 0.5 mm.
The permissible cable cross-section for single-wire conductors is in the range o f 0.5 to 2.5
mm 2 (20 to 12 AWG). A cable cross - section in the range of 0.5 to 1.5 mm 2 is permissible for
fine-wire conductors with wire-end ferrules.
For the wiring, continue as follows:
•
insert the connection cable through the lateral opening into the terminal com-
partment, the TORRIX Ex… requires a certified cable gland
•
connect the connection cable to the right PCB terminal clamps
The earthing or equipotential bonding must be carried out by the installer in
accordance with the respective national installation regulations. The earth con-
nector of the probe head can be used for earthing or equipotential bonding re-
quirements.
Also observe the general installation regulations.