TTF300 FIELD-MOUNT TEMPERATURE TRANSMITTER | DS/TTF300-EN REV. H

13

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Electrical connections

Terminal assignment

Resistance thermometers (RTD) / resistors (potentiometer)

A Potentiometer, four-wire circuit

B Potentiometer, three-wire circuit

C Potentiometer, two-wire circuit

D 2 x RTD, three-wire circuit*

E 2 x RTD, two-wire circuit*

F RTD, four-wire circuit

G RTD, three-wire circuit

H RTD, two-wire circuit

I Sensor 1

J Sensor 2*

K 4 to 20 mA HART®, PROFIBUS PA®, FOUNDATION Fieldbus®

L Interface for LCD indicator and service

M Ground terminal for shield support for sensors and supply / signal

lines

1 – 6 Sensor connection (of measuring inset)

*

Sensor backup / sensor redundancy, sensor drift monitoring, mean measurement, or differential measurement

Figure 3: Terminal assignment Resistance thermometer (RTD) / resistances (potentiometer)