TEKELEK Ultrasonic LoRaWAN Installation Manual

Ultrasonic LoRaWAN
Installation Guide
Thank you for purchasing the Ultrasonic LoRaWAN.
This sensor uses ultrasonic technology to measure the liquid level
of your tank and then sends the information over a LoRaWAN
network.

STEP 1: Activation:

Ensure that the LoRaWAN™ network is within communication
range of the sensor. This should occur before the sensor is
physically fitted onto the Tank. The external antenna version
needs the antenna to be connected prior to activation test.
a. Place sensor on or close to installation location.
b. Press the button for 1 second to connect to the
LoRaWAN network and upload a status
message.
c. The LED will stay illuminated as the sensor registers:
- The sensor is registering & connecting for the
first time. (Sensor is shipped in dormant state).
- The sensor is already registered.
The connection process will take
between 20 & 40 seconds.
d. After the connection has completed, the LED will
flash on & off (to indicate whether the connection
was a success or failure).
e. Please review the LED flash codes provided. In the
case of double red LED flashes an external
antenna may be a solution (especially for
underground tanks). Refer to step 4 for further
details.
9-5848-06

STEP 2: Attaching the sensor to your tank:

a. Identify a spare threaded opening (typically 2").
Remove and store the cap.
b. Ensure the opening is located away from the sides of
the tank and is clear of internal obstructions to
ensure a good ultrasonic reading. See Appendix for
further details.
c. Ensure the rubber seal (see diagram) is placed
between the opening and threaded adapter.
d. Screw the sensor clockwise into the threaded
opening.
Note: This sensor is not suitable for submersion in water.
NOTE: For the external antenna option self-amalgamating tape is
required to seal the external antenna (SMA) connections. See
Step 4.
DO NOT OVER-TIGHTEN THE SENSOR (Hand tight only).

Technical Specifications


Supports LoRaWan 1.0.2 compliant125 / 250KHz bands.

Operating frequency: 868MHz

Fits onto tanks with a 2" BSP threaded opening. 1 1/2" or
1 1/4" adapters are available.

Power output maximum 14dBm

Up to 14 years battery life using a 3.6v 2/3AA Li-SOCL2 cell

Operational temperature range –20 to +50° C

Dimensions 118mm x 90mm. Weight 250g

STEP 3: Manually testing the sensor:

Once the sensor has been installed successfully, it is
recommended to force a manual connection 4-5 times to test
the communications strength of the radio signal.
a. Press and hold the button for approximately 1
second, until the LED turns green.
b. Wait approximately 10-20 seconds and observe if the
LED flashes green or red.
c. Green flashes indicate a successful test connection
and data transmission.
d. Red flashes mean an unsuccessful connection.
See the following for description of Green/Red LED
flash codes.
LED Radio Signal Strength Flash Code
After a manual transmission is successfully completed, the
sensor LED will flash GREEN to indicate RF quality:
X 3 Flashes: Excellent signal strength quality (> -110dBm).
X 2 Flashes: Good signal strength quality (< -110 dBm & > -
115dBm).
X 1 Flash: Adequate signal strength quality (<-115dBm & > -
119dBm).
Alternate Flash: Weak RF signal: try 5 times and if this
response is stable then it's deemed adequate. If the sensor
shows some double red flashes during this signal strength test -
then an external antenna should be tried. It may need to be
elevated for best performance.
LED Error Flash Code
If a manual activation fails to connect successfully, the red LED
will flash the following code:
X 1 Flash: LoRaWAN network Join Fail. The unit may not be
registered on the network. Contact supplier.
X 2 Flashes: No Response from LoRaWAN network. This
occurs if unit is not registered, no radio reception or response
timeout
X 3 Flashes: General error, please try again. If the error
persists then contact the supplier for support.
X 5 Flashes: Maximum number of allowed button presses
exceeded (up to 6 button presses per hour allowed).
= Red LED Flash
= Green LED Flash
1