Siemens SITRANS FUS1010 NEMA-4X/ IP 65 manual Dual Path Models

Section 3 1010NFM-3J

1010N Dual Channel Temperature Sensor Inputs

3.2.3 NOTES ON SYSTEM 1010 ANALOG INPUT MODULES

Single Channel Models

zSystem 1010 NEMA flowmeters report input module temperature sensor connections T1 and T2 as system variables.

Dual Path Models

zDual Channel flowmeters report both T1 and T2 as generic variables for both channels.

zThe Dual Channel unit uses T1 for liquid temperature for Channel 1 and T2 as liquid tempera- ture for Channel 2.

zThe Dual Path instrument uses T1 to report liquid temperature. (Note that T2 is used to report ambient temperature in some Leak Detector systems.)

zThe Analog Input of temperature takes priority over the built-in RTD (Resistive Thermal Device) measurement of temperature.

zIf you want both channels of a Dual-Channel meter to sense a single RTD, short TB1/2 to TB2/ 2 and TB1/3 to TB2/3. This allows the same voltage to be fed to both channels. Once that is complete, you must close the RTD current loop by connecting TB1/4+5 to TB2/4+5. (Note: TB5 is just the cable shield.)

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