42
screw terminal, connect the sensor’s wires to the terminals, and
then plug the terminal back to the corresponding socket on the
input block.
Excitation socket
Output power socket used to power external sensors, power
derived directly from the external power supply adaptor.
3.2.2.
DNL804
External
antenna
External Current
4 to 20 mA input
External
antenna
External Current
4 to 20 mA input
Figure 21:
DNL804 data logger external connections
External antenna:
For extended transmission distance of the
logger.
External 4 to 20 mA input:
Standard input for connecting to
sensor with 4 to 20 mA output.