VEGA D81 Hydrostatic pressure transmitter - Manual (Page 32)

32 Pressure transmitter D81
2
2
2
1)
Ri < 250
Ω
4 ... 20 mA
Setup
5.5 Adjustment with PC directly on the sensor
(electronics versions I, K and L)
For connection of the PC to the sensor, the interface converter VEGACONNECT 2 is required.
Connection of the PC to the sensor
Insert VEGACONNECT into the serial interface of the PC and insert the two-wire cable of
VEGACONNECT into the CONNECT socket of the sensor.
Connection of the PC to the signal cable
Connect the two-wire cable of VEGACONNECT 2 to the signal cable leading to the sensor.
Connection configuration with pressure transmitter directly on active PLC
(electronics versions I, K and L)
• Two-wire technology, power supply from active PLC.
• Output signal 4 … 20 mA (passive).
• Adjustment with PC, HART
® handheld or adjustment insert located in the sensor or in the
external connection housing.
1) If the resistance of the processing system (PLC)
connected to the 4 … 20 mA signal output is less
than 200
Ω
, a resistor of 250
Ω
must be connected
to the connection cable during adjustment.
The digital adjustment signal would be considerably
damped or short-circuited through insufficient
resistance of a connected processing system, and
digital communication with the PC would not be
ensured.
VEGA-
CONNECT 2
PLC