Справочник Пользователя для Siemens SITRANS FUS1010 NEMA-4X/ IP 65
3-18
1010NFM-3J
Section 3
1010N Dual Channel Temperature Sensor Inputs
3.2.3 NOTES ON SYSTEM 1010 ANALOG INPUT MODULES
Single Channel Models
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System 1010 NEMA flowmeters report input module temperature sensor connections T1 and
T2 as system variables.
T2 as system variables.
Dual Path Models
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Dual Channel flowmeters report both T1 and T2 as generic variables for both channels.
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The Dual Channel unit uses T1 for liquid temperature for Channel 1 and T2 as liquid tempera-
ture for Channel 2.
ture for Channel 2.
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The Dual Path instrument uses T1 to report liquid temperature. (Note that T2 is used to report
ambient temperature in some Leak Detector systems.)
ambient temperature in some Leak Detector systems.)
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The Analog Input of temperature takes priority over the built-in RTD (Resistive Thermal Device)
measurement of temperature.
measurement of temperature.
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If 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.)
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.)