Enevo Sensor Installation Guide
This document guides you through the installation of the Enevo sensor. The sensor can be installed in numerous types of
containers and on a wide range of surfaces, such as metal or polyethylene. Please read through this installation guide before
installation to get an overview of the installation process.
Before You Begin
To make the installation easier, Enevo has provided an installation kit conveniently packaged in an orange case, and containing
the following:
1. a stencil, to accurately mark where the mounting holes are to be drilled
2. an activation magnet
3. a special installation tool, used to hold the sensor in place during mounting
In addition to what is provided in the kit, you will also need:
4. a ø9 mm drill bit (in addition, a ø4 mm drill bit is recommended for metal containers)
5. a flat tip screwdriver (or bit)
6. a (cordless) drill
7. four M8 security bolts, provided with each sensor
Note: there are two screw types available, secure and normal. You must specify which type of screws are required for each
sensor.
8. a permanent marker pen to mark where the holes should be drilled
Figure 1. Installation tools
To register the sensor in the field you will need a target & container list (the list template is available from Enevo)
Installation Procedure
The installation procedure consists of two phases:
1. Registering and activating the sensor
2. Mounting the sensor
Registering the sensor
To register the sensor you will need the serial number of the sensor, obtained from the barcode sticker affixed to the bottom of
the sensor as shown in figure 2.
Figure 2. Registering the sensor
Registering the sensor
Record the serial numbers of each sensor on the target & container list before installing the sensor.
If you have several containers of the same content type located at the same site, they should be numbered from left to right. For
example, if you have three containers of mixed waste at a given site, the leftmost container would be named “Mixed 1”, the
middle container “Mixed 2”, and the rightmost container “Mixed 3”.
In addition to the sticker on the bottom of the sensor, you will also be provided with one (1) additional matching sticker per
sensor to be attached to the list target & container list, for easy identification after the sensor has been mounted.
Activating the sensor
To activate the sensor, do as follows:
1. Swipe the activation magnet along the side of the sensor for the entire length of the Enevo logo (see figure 3). When done,
keep the magnet away from the sensor until instructed otherwise later in the installation process. Figure 3. Using the activation magnet
2. After swiping the sensor with the activation magnet, a red LED located on the side of the sensor, under the surface, will
flash seven (7) times. Wait for all flashing to end.
3. As soon as the flashing ends, swipe the activation magnet along the side of the sensor a second time. You only have three
seconds to do this.
4. After swiping the sensor with the activation magnet the second time, the LED will show one long flash to indicate that the
initial activation was successful. If you do not see one long flash or you see multiple flashes, wait for 10 seconds and start
over from step 1 until the activation succeeds.
5. After approximately one minute, the LED will show one long flash again as confirmation of a fully successful activation. The
sensor is now operational.
6. If instead of a single long flash, the LED flashes multiple times, the registration was unsuccessful. If possible, select
another sensor and try again. If this does not help, see the section below on troubleshooting.
Mounting principles and scenarios
The Enevo sensor uses ultrasound to measure the height of the surface of the material in the container. The transmission and
reception of ultrasound waves are sent from the cone shaped hole on the sensor. Ultrasonic signals bounce off container
structures and obstacles and the strength of the signal weaken relative the distance from the point of their reflection. Figure 4
depicts the basic functioning of the sensor and ultrasonic waves as it should occur in an obstacle free installation of the sensor.
Figure 4. Normal transmission and reflection of ultrasonic waves in a typical container
Ensure that this sensor cone is directed towards the center of the bottom of the container and that there is nothing obstructing
the ultrasound beam as depicted below. The sensor requires at least 250 mm of free space around itself. If there are internal
container structures which may interfere with the ultrasonic waves, as depicted in figures 5 and 6, please contact Enevo for
guidance.
Figure 5. Problematic installation due to reflections from substantial internal container structures
Figure 6. Possible but sub-optimal installation due to minor internal container structures - please contact Enevo for
guidance.
The sensor can be mounted directly to an internal surface of the container or attached to a suitable internal structure within the
container. In the case of an underground container, the sensor can be installed with an external antenna. See figures 7 through
10 for examples. If you are unsure about the best installation location, please contact Enevo for guidance.
Figure 7. Sensor mounted directly to the container surface
Figure 8. Sensor mounted to a suitable structure within the container
Figure 9. Sensor mounted with application specific bracket
Figure 10. Sensor mounted within underground container with external antenna
Mounting the sensor
To mount the sensor, do as follows:
1. Drill the mounting holes:
a. Select the optimal mounting location for the sensor. Mount the sensor near the top center of the container. If possible, it is
best to mount the sensor slightly away from the container opening in order to minimize the possibility of accidental
impacts and vandalism. b. Place the stencil provided with the sensor on the outside surface of the container where the sensor is intended to be
mounted as shown in figure 11. Rotate the stencil until the ring-shape on the stencil is over (or as close as possible) to the
center of the container. Use the stencil and the permanent marker pen to carefully mark the drilling points as depicted in
the figure.
Important! Check that the stencil is flat on the surface. If you mark the drilling points using an uneven stencil, the drilling point
cross-measure will be incorrect.
Figure 11. Using the stencil to mark the drilling points
c. Drill the holes using a ø 9 mm drill bit. If you are mounting the sensor on a curved surface, take care to drill all of the
holes at a 90 degree angle to the sensor surface (see figure 12), otherwise the holes may prevent the bolts from entering
the sensor at the proper angle.
Tip: Indent drill points with a steel tipped marker to prevent the drill bit from slipping.
Figure 12. Proper drilling angle
2. Attach the sensor as follows:
a. Screw the special installation tool provided with the kit into one of the four (4) threaded holes in the sensor as depicted in
the figure below:
Figure 13. Attaching the installation tool to the sensor
b. Insert the sensor into the container with the sensor cone facing downwards and the installation tool facing upwards as
show in the figure below.
Figure 14. Insertion of the sensor with installation tool attached
c. Push the attached installation tool up through the correct hole according the stencil and drilling pattern as shown in figure
15 below (note: the drilling pattern in the stencil is asymmetric therefore the holes will only align one way). The sensor will
then remain hanging inside the container, secured by the installation tool.
Incorrect placement will be evident from the holes not aligning perfectly. If this occurs, remove the sensor, realign and install
again.
Figure 15. Sensor aligned correctly and installation tool inserted through the correct hole
d. With the installation tool inserted through the correct hole, align the sensor so that you can see the remaining three bolt
holes in the sensor through the holes in the container. Then tighten the installation tool to secure the sensor in place as
shown in figure 16.
Figure 16. Aligning and securing the sensor position
e. Insert three fastening bolts through the holes in the container into the bolt holes in the sensor as shown in figure 17.
Tighten the first few turns of each bolt by hand, making sure the bolts are threaded properly at the right angle. Finally,
tighten the bolts firmly but not over-tight using the screwdriver. The force when tightening the screws should not exceed
13Nm.
Figure 17. Install initial three fastening bolts
f. Unscrew and remove the installation tool, then insert & tighten the fourth fastening bolt in the remaining hole like the
others as shown in figure 18:
Figure 18. Removing the installation tool and attaching the remaining bolt
Please make sure the list of sites and containers is filled out completely and accurately. The completed list must then be
delivered to Enevo.
General Maintenance
The Enevo sensor needs no regular service. However, for optimal performance and maximum longevity, the following practices
should be followed during normal container inspections:
1. Check sensor mountings and tighten bolts if necessary
2. Clear the sensor cone from any obstructing materials
The container can be washed with regular soaps. No alkalines or acids should be used as they may damage the sensor
materials.
Figure 19. General maintenance and inspection of the sensor
Troubleshooting
If you fail to activate two (2) consecutive sensors at the same site, it is likely that the site is located within a GSM network
shadow zone, and it is best to halt the installation and contact Enevo for guidance.
To re-check sensor status after initial activation:
Sweep the sensor as shown in figure 3. One long LED flash in the side of the sensor indicates the sensor is active,
whereas multiple flashes indicate that the sensor is not activated (see figure 20 below).
For any other problems, please contact Enevo at support@enevo.com
Figure 20. Sensor status check
Tips & Tricks
When planning the sensor installation, look carefully inside the container to make sure nothing will interfere with the ultrasonic
signal, such as container structures or large obstacles. If unsure, please contact Enevo for guidance.
Indent drill points with a metallic spike to prevent the drill bit from slipping.
On metal surfaces, first use a smaller drill bit (e.g. 4 mm) to ease drilling of the final holes (9 mm).
For optimal performance, check mountings and clean the sensor cone during regular container maintenance.
Updated: Mon Sep 1 22:28:13 EEST 2014