8. Electrical connection
8. Electrical connection
The electrical connection of the transmitter is made through an
GB
angular connector. The exact pin assignments can be found in the
following drawings. In addition, the pin assignment, output signal and
the required power supply are stated on the product label.
Explanation of the terminal assignments used:
U
Positive terminal of the power supply
B+
0 V
Negative terminal of the power supply
Sig+ Positive terminal of the output signal
Sig-
Negative terminal of the output signal
The instruments must be connected to the equipotential bonding of
the plant.
Designation of terminal connectors
Terminals 1 and 2 are the connection terminals for the signal
output and the power supply, respectively. The terminal labelled
PE (protective earth) is internally connected to the casing. The
connections 3 to 6 or 4 to 6 in the 3-wire variant, should be left free
and must not be used as points (see also chapter 3 "Specifications").
18
WARNING!
The gas-actuated thermometer with integrated rotary
encoder must be grounded through the thermometer
housing and through the ground terminal in the angular
connector.
WIKA operating instructions model TGT73