Pag. 8 di 16 www.sgm-lektra.com
TC22÷25 - electrical connection
6-ELECTRICAL CONNECTION
6.1 CONNECTIONS
The TC22÷25 capacitive transmitter can be supplied in DC or AC voltage depending on the model as shown in the
following images.
The current consumption is less than 1,5W for Vdc power supply and 2,5W for Vac power supply. The TC22÷25 ca-
pacitance trannsmitters are lodged into the sensor capacitance head connections; remove the cover unscrewing and
opening the upper part, gain the access to two 6-pole plug-in connectors. Electrical connection must be made with a
multi-wires round cable of proper diameter, otherwise the seal of the cable gland may be impaired. No special cable or
coax-cable are requests for compact version, and no practice distance limits. For the Vdc power supply take in conside-
ration that the negative of the power supply is electrically connected to the negative output current. For the Vac power
supply versions, from the power supply and the output current there is a galvanically separation.
P2
P1
+4÷20mA
Probe
SCH
A
-
B RS485
+
-
24Vdc
L
N
GND
P2
P1
+4÷20mA
Probe
SCH
A
-
B RS485
TC22 24Vdc
TC23 24Vac TC24 115Vac TC25 230Vac
