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3 reset input, 4-wire connection, 5 4-wire connection – Tecfluid TH7 User Manual

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9

Example of the connection of the pulse output to a PLC

4.3 Reset

input

The terminals marked as RESET are a reset input for the totalizer. It can be connected to
a normally open potential free contact. It is important that the contact works well with low
level signals, to avoid noise effects.

Note: The reset terminals are not isolated from the rest of the circuit. They may not be
connected to other equipment.

5 4-WIRE

CONNECTION

If direct current power supply for the transmitter is not available in the installation, it will be
necessary to incorporate an additional power supply as in the following figure.