Endress+Hauser RN42, Руководство по эксплуатации, Страница: 17 / 32

RN42 Technical data
Hauser 17
External voltage, passive mode Uext = 12 to 30 V
Transmissible communication protocols HART
Signal on alarm
Line break in input Input 0 mA / output 0 mA
Line short circuit in input Input > 22 mA/ output > 22 mA
Ex connection data See associated XA Safety Instructions
Galvanic isolation
Power supply for input/output Testing voltage: 3 000 V
AC
50 Hz, 1 min
12.4 Power supply
Terminal assignment Quick wiring guide
Out
In
3.1 3.2 3.3
4.1 4.2 4.3
N/- L/+
HART
Ch1
2-W
4-W
24..230V
AC/DC
HART
Ch1
1.2 1.1
1.2 1.1
Out
In
3.1 3.2 3.3
4.1 4.2 4.3
N/- L/+
HART
Ch1
2-W
4-W
24..230V
AC/DC
HART
Ch1
1.1 1.2
A0045153
 7 Terminal assignment, left: power supply top; right: power supply bottom (option)
HART communicators can be connected to the HART connection sockets. Ensure an
adequate external resistance (≥ 230 Ω) in the output circuit.
To use the HART terminals, the internal 250 Ω communication resistor can be added
to the measuring loop via the alternative terminal assignment (terminal 3.3).
Connecting the supply
voltage
The power is supplied via terminals 1.1 and 1.2.
Special connection
instructions
• Disconnecting units and auxiliary circuit protective systems with suitable AC or DC
values must be provided in the building installation.
• A switch/power circuit breaker must be provided close to the device and clearly marked
as a disconnecting unit for this device.
• An overcurrent protection unit (I ≤ 10 A) must be provided in the installation.
For information on the connection data, see the "Technical data" section.