VEGA D81 METEC Hydrostatic pressure transmitter - Manual (Page 26)

26 Pressure transmitter D81 METEC ®
250
Ω
Ri < 250
Ω
+
-
PLC
Setup
4.4 Setup with HART ® handheld
Sensors with electronics versions I, K and L
can be set up with the HART
® handheld. A
special DD (Data Device Description) is not
necessary. Just connect the HART
® handheld
to the sensor signal cable after you have
connected the sensor to supply voltage.
Note:
If the resistance of the voltage supply is less
than 250
Ω
, a resistor must be looped into the
signal/connection cable during adjustment.
The digital adjustment and communication
signals would otherwise be short-circuited
through insufficient resistance of e.g. the
supply voltage source or the processing
system. Simply connect the adjustment resis-
tor in parallel to the connection socket of the
HART
® handheld.