HOBO U30 Station (NRC) User’s Guide
13
Connecting Analog Sensors
Refer to the sensor documentation for sensor connection details and use the
pin out diagram below to connect a two- or three-wire sensor or transducer
to the module’s terminals.
To make the connection:
1.
Loosen the screw for each pin on the connector.
2.
Insert the appropriate wire. See Pin Out below.
3.
Tighten the screw.
Analog Port Pin Out
Pin #
Left
Function Pin
#
Right
Function
1 Shield
1 Shield
2
Channel 1 Signal
2
Channel 2 Signal
3
Channel 1 Return
3
Channel 2 Return
4 Excitation
Voltage
4 Excitation
Return
Cables
Make sure all wires attached to the Analog Sensor Port are routed through
the cable access opening.
To fit into the holes in the rubber cable channel, the ideal cable diameter is
0.157 in (4.0 mm). If the cable is too small, build up the diameter using heat
shrink. If it is too big and you are using the secondary cable access opening,
then place the cable through the left-most hole in the rubber cable channel
where the diameter can be up to 0.25 in (6.4 mm).
If you are not using the secondary opening or the cable is still too big, then
splice on another cable with a smaller diameter to fit through the hole. See
the steps later in this section for working with the rubber cable channel.
14
HOBO U30 Station (NRC) User’s Guide
Connecting the Battery
Connect the built-in battery cable to the battery.
NOTE
: As long as your battery has adequate charge, you do not need to
connect the solar panel or AC adapter for this initial setup/test launch.
Connecting the Battery
