11 Appendix Temperature head transmitter
56 Endress+Hauser
11 Appendix
11.1 Function and system construction
11.1.1 Function
Function Electronic monitoring and transformation of various input signals into an analogue
output signal in industrial temperature measurement. The head transmitter is mounted
in a connection head form B or separated from the sensor in field housing. Setting up of
the head transmitter is done using the HART
®
Protocol using the hand operating module
(DXR 275) or PC (Commuwin II).
11.1.2 Measurement system
Measurement system Transforming the following input signals:
• Resistance thermometers (RTD) and resistance sensors (in 2-,3- or 4-wire connection
systems)
• Thermocouples (TC) and
• Voltage sensors into a scalable analogue output signal (4...20 mA or 20...4 mA).
Fault monitoring of:
• Measurement range override or undercut
• Sensor breakage and short circuit
1
Application in hazardous areas is certified to ATEX II 1 GEEx ia IIC T4/T5/T6.
1.Not for thermocouples (TC)
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