Endress+Hauser Waterpilot FMX21 - Output

Technical data Waterpilot FMX21
124 Endress+Hauser
16.2 Output
16.2.1 Output signal
FMX21 + Pt100 (optional)
• 4 to 20 mA with superimposed digital communication protocol HART 6.0, 2-wire for
hydrostatic pressure measured value. Ordering information: Product Configurator order
code for "output", option "2"
• Pt100: temperature-dependent resistance value
TMT182 temperature head transmitter (optional)
4 to 20 mA with superimposed digital communication protocol HART 5.0 for temperature
measured value, 2-wire
16.2.2 Signal range
3.8 mA to 20.5 mA
16.2.3 Output signal
FMX21 + Pt100 (optional)
4 to 20 mA HART.
Options:
• Max. alarm (factory setting 22mA): can be set from 21 to 23 mA
• Hold measured value: last measured value is held
• Min. alarm: 3.6 mA
TMT182 temperature head transmitter (optional)
Options:
• Max. alarm ≥ 21.0 mA
• Min. alarm ≤ 3.6 mA
16.2.4 Maximum load
The maximum load resistance depends on the supply voltage (U) and must be determined
individually for each current loop, see formula and diagrams for FMX21 and temperature
head transmitter.
The total resistance resulting from the resistances of the connected devices, the
connecting cable and, where applicable, the resistance of the extension cable may not
exceed the load resistance value.