RTX 1000H series user manual
3-9
K0297 Issue 2
Figure 3-6: Electrical conduit configuration
Electrical connections (Figure 3-7)
The transmitter is a 2-wire loop powered device. The marks +ve and -ve
identify the polarity of the connection terminals.
A label in the transmitter shows how to use the third terminal to measure the
output current from the transmitter. In hazardous areas, do not use this third
terminal.
Figure 3-7: Transmitter connections
Because the transmitter circuit is isolated from the housing, one of the signal
wires (+ve or -ve) can be earthed (grounded) if necessary.
To Drain
Plug
min: 50 mm
(2")
Flex Conduit
Conduit
Tee
Note:
For HART® operation,
the minimum loop
resistance is 250
Ω
.
250
Ω
Power
supply
HART® - HHC
