Dwyer TFM-LP - Manual (Page 10)

F-20-TF-L, pg. 10 of 30
c) Electrical Connections – Voltage Output Units (TFP-LI &
TFM-LI Series)
The cable assembly should be connected to the sensor as detailed in section
4(b) above. Power should not be applied to the sensor until all the
connections have been made and checked. Electrical connections should be
made as follows:
Wiring Schematic For Voltage Output Units.
The RED wire should be connected to the Positive of the power source.
The BLACK wire should be connected to the Negative ( Ground ) of the
power source.
The WHITE wire provides the signal output and should be connected to the
positive terminal of the display, data acquisition system or voltmeter with an
impedance of greater than 2500
Ω (Ohms).
The GREEN wire (if present) is NOT used
CAUTION : Avoid high voltage static discharges to any of the
connections. Do not short the input/output signal wires or allow
them to contact the power wires at any time. DAMAGE WILL
RESULT!