TEKELEK Ultrasonic 4G NB-IoT/CAT-M1 User manual

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Ultrasonic 4G NB-IoT/CAT-M1 sensor
Installation Guide
Thank you for purchasing the Tekelek Ultrasonic 4G NB-IoT/CAT-M1 sensor
which uses ultrasonic technology to measure the liquid level of your tank and
then communicates this data to a remote server.
SIM Card and Configuration. The Ultrasonic 4G NB-IoT/CAT-M1 sensor works
in conjunction with a remote server and before installation the unit must be
fitted with a suitable SIM card and be correctly configured for the location in
which it is intended to operate.
STEP 1: Activation
To activate the sensor, hold the supplied magnet to the hot spot which
can be found directly below the LED.
As the magnet is held to the hot spot, the LED will first flash Green then
flash Red, after this the Red LED will light continuously, remove magnet
from hot spot once this has been achieved.
A series of beeps will be heard while this Red LED remains illuminated.
This indicates the IoT Modem is registering onto the cellular network.
Upon successful registration to the network the sensor will attempt to
initiate a GPRS connection to the server. This is indicated by higher
pitched beeping and LED is illuminated RED.
The successful connection to the server is indicated by High /Low / high
tone beeps as data is exchanged with the remote server, as a join
request is processed. If all well, the server will send an Activation
command.
Successful activation is indicated by the LED turning green, and a
double beep pattern.
The Ultrasonic 4G NB-IoT/CAT-M1 sensor will now begin measuring the
tank liquid level and uploading the reading according to the pre-
programmed schedule.
If the sensor is installed according to Waveguide mode, then the
Server administrator must be informed, to change the setting to
suit that mode.
It is recommended to Contact the server administrator to verify that
the sensor readings are received on the server, and that the readings
are good before leaving the installation site.
LED Pattern:
LED Pattern
Function
Green / Red / Off
LED test: When a magnet is held against
the hot spot the LED will briefly indicate
Green followed briefly by Red and then
off.
Red LED - On
continuous
Modem Busy: Registering on Network
and sending data
Green LED - On
continuous
Activated: Server has responded and
Activated the unit.
Beep Pattern:
Beep Pattern
Definition
Low beep once per second
Network Registration
High beep once per second
TCP connecting
Low beep once every 4 seconds
Network / TCP Listen for commands
Low beep once every 2 seconds
Re-establish Network / TCP
High / Low combination beep
Incoming Data
Low / High combination beep
Outgoing Data
Low double-beep every 4 seconds
Network Listen
(Data Received & Unit Active)
STEP 2: Installation
The Ultrasonic NB-IoT/CAT-M1 sensor works in conjunction with a remote
server and before installation must first be registered to this. Access to the
backend server is required to verify that the unit has correctly joined the
network.
The following outlines the sensor mounting options.
The sensor must sit in a vertical position on top of the tank and be
fitted such that the sensor has a clear path to the tank contents.
Position it so that there are no internal obstructions that may
interfere with the ultrasonic signal.
If obstacles cannot be avoided, then a waveguide may be required.
Please refer to Appendix 2 for further details.
Locate a suitably positioned threaded opening on the top of the tank to
hold the sensor.
The sensor will fit directly into threaded 1 ¼”, 1 ½” or 2” BSP (British
Standard Pipe) existing tank connections.
Ensure that the gasket is placed, and that the sensor is screwed
correctly into the tank.
For tanks that do not contain a suitably positioned threaded opening on
the top of the tank to hold the sensor, please refer to Appendix 1.

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Appendix 1: Drilling Procedure
Choose a flat spot on the top of the tank.
Use a 45.5mm tapping drill to drill a 1 ½” BSP hole on the surface of the
tank.
Place the foam gasket over the hole followed by the mounting adaptor.
Tighten on to tank with 2 stainless steel self-tapping, counter sunk
screws, supplied. Do not over tighten!
Screw the sensor into the adaptor. Ensure that the sensor is vertical
on the tank and screwed correctly into the base and that the threads
have not crossed, to give a secure seal
Appendix 2: Waveguide
Note: The default sensor configuration is non-waveguide mode and the
measurements will be inaccurate unless a waveguide configuration mode
is used.
Source a suitable pipe to act as the waveguide. This pipe should
conform the dimensions in the figure below in order to fit the sensor.
The recommended pipe material is PVC (domestic waste pipe is often
used). Other materials are possible but should be checked for
chemical resistance to fuel oil.
Cross-section of waveguide pipe assembly:
The pipe should be cleanly cut to length. The length required should be
measured from the top of the tank (where the sensor is to be mounted)
to that of the fuel outlet point (as shown).
Note: The bottom of the pipe should be a minimum of 5cm from the
base (floor) of the tank to prevent it from touching in the case of tank
dimensional changes due to temperature etc.
The waveguide pipe should be securely attached via the two grub
screws and hand tightened with an M1.5 Allen key (Note: over-
tightening the grub screws can damage the plastic). Care should be
taken to keep the sensor and pipe vertically aligned and supported,
while fitting during the installation.
Note: Depending on the weight, length and surface finish of the pipe, it
may be necessary to glue it into position. In this case a hole should be
drilled near the top of the waveguide pipe, just below the adapter, to
ensure that any trapped air can exit.
Insert the correctly sized rubber seal ring, as required for the tank
opening (supplied), and position it on the face of the adapter that
is screwed onto the top of the tank.
Insert the whole assembly carefully into the tank, taking care not to
loosen the pipe, and fit into position. Hand tighten the assembly
until the rubber seal locks into position.
For more information on the Tekelek Ultrasonic 4G NB-IoT/CAT-M1 sensor
please visit our website www.tekelek.ie where a link to our YouTube page
can also be found.
9-5956-02