RXW TEROS-12 Soil Moisture EC Temp Sensor (RXW-T12-xxx) Manual
1-800-LOGGERS
2
www.onsetcomp.com
Specifications (continued)
Dimensions
Sensor: 7.47 x 9.4 x 2.39 cm (2.94 x 3.7 x 0.94 inches)
Sensor needle length: 5.4 cm (2.13 inches)
Sensor needle diameter: 0.32 cm (0.13 inches)
Cable length: 5 m (16.4 ft)
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)
Weight
RXW-T12-xxx sensor and cable: 245
grams (8.64
oz)
Mote: 223 g (7.87 oz)
Materials
Sensor: ASA plastic body with polyurethane epoxy filling and stainless steel
pins
Cable: PVC, UV resistant and rodent repellent
Mote: PCPBT, silicone rubber seal
Environmental Rating
Mote: IP67, NEMA 6
Compliance Marks
RXW-T12-900: See last page
RXW-T12-868: The CE Marking identifies this product as
complying with all relevant directives in the European Union
(EU).
RXW-T12-921: See last page
RXW-T12-922: See last page
* The sensor data can be post-calibrated if necessary (e.g. the sensor is used in non-mineral soil types or higher than
standard accuracy is required). Users can apply a calibration equation to the data exported from HOBOlink. The VWC
range will depend on the calibration equation.
** Temperature measurement, for applicable sensors, may not be accurate if sensor is not fully immersed in medium of
interest, due to longer equilibration time.
Mote Components and Operation
Sensor Mote Closed, Front
Sensor Mote Closed, Back
Sensor Mote Opened
Mounting Tab:
Use the tabs at the top and bottom of the mote
to mount it (see
Deploying and Mounting
).
Solar Panel:
Position the solar panel towards the sun to charge
the mote batteries (see
Deploying and Mounting
).
Sensor Cable:
This is the cable that connects the mote to the
sensor.
Eyelet:
Use this eyelet to attach a 3/16 inch padlock to the
mote for security.
Latch:
Use the two latches to open and close the mote door.
Ground Wire Port:
Use this port to connect a ground wire (see
Deploying and Mounting
).
Antenna:
This is the built-in antenna for the radio
communications across the RX Wireless Sensor Network.
LEDs:
There are two LEDs to the left of the LCD screen. The
green LED blinks during the process of joining a network,
blinking quickly while the mote searches for a network and
then slowly as the mote registers with the network. Once the
network registration process is complete, the blue LED blinks at
4 seconds to indicate normal operation. If the mote is not
currently part of a network, the blue LED will be off. If the blue
LED is on and not blinking, there is a problem with the mote.
Contact Onset Technical Support.
Solar Panel Cable:
This cable connects the built-in solar panel
to the mote circuitry.
Battery Holder:
The location where the batteries are installed
as shown (see
Battery Information
).
USB Port:
Use this port to connect to the mote to a computer
via USB cable if you need to update the firmware (see
Updating
Mote Firmware
).
Button:
Push this button for 1 second to illuminate the LCD or 3
seconds for the mote to search for a HOBOnet Wireless Sensor
Network to join (see
Adding the Mote to the HOBOnet Wireless
Sensor Network
).
LCD Screen:
The mote is equipped with an LCD screen that
displays details about the current status. The following example
Mounting
Tab
Solar Panel
Latch
Eyelet
Ground Wire
Port
Sensor Cable
Solar Panel Cable
Button
USB Port
Battery Holder
LCD Screen
Antenna
LEDs