1 SAFETY INSTRUCTIONS
1.1 WARNINGS, CAUTIONS, AND NOTES
Important information can be highlighted with brief notes, warnings, and cautions. It's important to know what these terms mean.
Warning - Highlights an essential operational procedure, practice, condition, statement, etc., which, if not strictly observed, could result in injury to personnel.
Cation - Highlights an essential operational procedure, practice, condition, statement, etc., which, if not strictly observed, could result in damage to or destruction of equipment or loss of mission effectiveness.
Note - Highlights an essential operational or maintenance procedure, condition, or statement.
1.2 A-EYE SENSOR INSTALLATION – SAFETY INSTRUCTIONS
The A-Eye sensor operates using UV LED Light (class 3B) beams. It is installed in the manhole and not exposed to the public. However, the manhole is opened occasionally for different maintenance procedures, collecting samples, and other procedures performed by external company authorities.
To avoid any severe damage from exposure to the AEYE sensor, follow the next precautions:
Warning - Every technician must be qualified
Every technician must undergo annual safety training.
During the safety training, working with the system will be explained, and the correct working methods for the installed system in the manhole will be discussed.
Cation - Before any procedure related to the system, the technician must wear safety eyewear (Sunglasses) to avoid eye damage from exposure to the UV light from the sensor.
The technician may remove the safety eyewear only after verifying the A-Eye sensor is disconnected from the battery.
Cation - UV Light Sign
After the complete installation of the system, a safety sign shall be installed explaining the risks of exposure to the system. The sign shall be on the inside and outside of the manhole.
If it is not possible to install the safety sign, verify that the manhole is defined in the management application as a problematic manhole, and install the UV Light sign on the sensor and the Data Logger located inside the manhole.
2 INSTALLATION
2.1 PERSONNEL
At least two technicians are required for any operation in the manhole.
While opening a manhole, the technician might be exposed to safety issues such as Height, Explosive or Toxic Gases, etc. This requires the team to take the relevant precautions.
If the manhole is located in the middle of the road or near traffic, a third technician must control the traffic.
2.2 SAFETY
Warning - Refer to Safety Instructions
Before performing any maintenance procedures, refer to safety instructions (see Chapter 1).
2.3 TOOLS AND EQUIPMENT
9 mm drill bit
Hammer
13 mm hex socket
13 mm hex wrench
Sun glasses
2.4 MATERIALS
Zip ties
2.5 PREPARATIONS
a) Open the manhole lid.
b) Deploy the Installation Kit.
2.6 WALL BRACKET ASSEMBLY INSTALLATION
a) Using the four holes on the bracket, place the Wall Bracket Assembly and mark four drilling locations inside the manhole.
b) Using a 9 mm drilling bit, drill four holes (5) into the manhole wall.
c) Using a hammer, hammer four dowels (4) into the holes.
d) Using a 13 mm hex socket, install four hex screws (2) securing the Wall Bracket Assembly (3) to the dowels (4).
e) Using hand force, remove the butterfly screw (1) from the Wall Bracket Assembly (3).
Figure 2-1: Wall Bracket Assembly Installation
2.7 ARM ASSEMBLY INSTALLATION
a) Insert the arm assembly (1) inside the sensor wall bracket (2).
b) For easier sensor installation rotate the arm assembly (1) sideways
Figure 2-2: Arm Assembly Installation
2.8 SENSOR HOLDER CARRIAGE ASSEMBLY INSTALLATION
a) Using a 5 mm Allen wrench, install four Allen screws (2), securing the Holder Carriage Assembly (1) to the Sensor (3).
b) Using a 5 mm Allen wrench, tighten screws (2).
c) Install extension pipes to the Sensor Holder Carriage Assembly (1) as necessary.
d) Connect the extended sensor to the Sensor Carriage Sleeve (1).the
Figure 2-3: Sensor Holder Carriage Assembly Installation
2.9 SENSOR INSTALLATION ON ARM ASSEMBLY
a) Using a 13 mm hex socket and 13 mm hex wrench, remove Securing Bolt (1) and Nut (4) from the sensor arm assembly (2).
b) Install the sensor assembly (5) to the arm assembly (2).
c) Using a 13 mm hex socket and 13 mm hex wrench, install Securing Bolt (1) and Nut (4) to the sensor arm assembly (2).ss
d) Using a 13 mm hex socket and 13 mm hex wrench, tighten the Securing Bolt (1) and Nut (4).
e) Using hand force, tighten the butterfly screws (3) on the arm assembly and on the carriage sleeve (6) to stabilize the system.
Figure 2-4: Sensor Installation on Arm Assembly
2.10 SENSOR LOCATION ADJUSTING TO THE WATER STREAM
a) Make sure that there are no obstacles like walls, cables, and reflective objects that could disturb the Ultrasonic beam when installing the sensor on the arm assembly (3).
b) When installing the A-Eye Sensor (1) and the Rangefinder (2), ensure they are positioned towards or against the water stream
c) For the correct installation height, refer to section 2.11
Figure 2-5: Sensor location adjusting to the water stream
2.11 INSTALLATION HEIGHT
2.11.1 Key Considerations
Water Level Sensor Limitation: The minimum distance between the sensor and water (Maximum water level at the manhole) should be 30 cm.
Aeye Signals Limitation: The maximum distance between the sensor and water should be 160 cm.
Beam Extraction Angles: WL bean extraction is 8 degrees. See Figure 2-11 below.
Manhole Dimensions: The installation height depends on the manhole's height and channel width. See Figure 2-11 below.
2.11.2 Installation Guidelines
Manhole Height and Channel Width:
Install the sensor at the highest possible height according to the WL angle, to avoid sensor flooding or wastewater splashing onto the sensor lead.
Beam Extraction:
Refer to the provided beam extraction tables for the appropriate distances based on the sensor's height and the WL beam angle.
Figure 2-11: WL Beam extraction:
2.12 CABLE CONNECTION
a) Connect the sensor cable (5) to the Data Logger to serial 3 connector (2).
b) Connect the sensor cable (4) to the battery connector (1).
c) Using zip ties, secure the sensor cables to the arm assembly (3).
Figure 2-6: cable connection
3 A-EYE CONFIGURATION
3.1 PERSONNEL
At least two technicians are required for any operation in the manhole.
While opening a manhole, the technician might be exposed to safety issues such as Height, Explosive or Toxic Gases, etc. This requires the team to take the relevant precautions.
If the manhole is located in the middle of the road or near traffic, a third technician must control the traffic.
3.2 SAFETY
Warning - Refer to Safety instructions.
Before performing any maintenance procedures, refer to safety instructions (see Chapter 1).
3.3 TOOLS AND EQUIPMENT
N/A
3.4 MATERIALS
N/A
3.5 PREPARATIONS
a) Install the A-Eye sensor. (see chapter 2)
b) Open the Kando Application.
3.6 SENSOR CONFIGURATION
a) In the Kando web app, go to Systems Management (2) in the Manage menu (1)
b) Click the Manhole ID Name Green button (3).
Result:
The Edit Point opens (4).
NOTE: There are two configuration options: a template or a manual one. The template is the recommended option.
3.6.1 Template Configuration
Refer to this document for detailed instructions: how-to-configure-a-new-point article in the help center.
3.6.2 Manual Configuration
Refer to this document for detailed instructions AEYE-configuration article in the help center.
4 INSTALLATION VERIFICATION
After all the configuration is done, data verification is essential before leaving the manhole.
a) Short Magnet
Swipe a short magnet to start DL to server communication.
b) Check the data received from the sensor
1) Go to System Management in the Manage menu,
Press the Manhole ID Name Green button > the Edit Point window opens.
2) Click the "i" icon
3) In the Last Broadcast screen, verify the following data
a) Check the accuracy of WL value. The WL value is determined by the formula: Installation height minus Distance from the water equals the water level value.
b) The values of AEYE_BA_MINUS , AEYE_BB_MINUS - must be above minus 4. If not, the sensor is malfunctioning due to improper calibration, another sensor should be installed.
c) The Aeye and DL battery value must be above 12,000.
5 SENSOR ASSEMBLY REMOVAL
5.1 PERSONNEL
At least two technicians are required for any operation in the manhole.
While opening a manhole, the technician might be exposed to safety issues such as Height, Explosive or Toxic Gases, etc. This requires the team to take the relevant precautions.
If the manhole is located in the middle of the road or near traffic, a third technician must control the traffic.
5.2 SAFETY
Warning - Refer to Safety Instructions
Before performing any maintenance procedures, refer to safety instructions (see Chapter 1).
5.3 TOOLS AND EQUIPMENT
Cutter
13 mm hex socket
13 mm hex wrench
Sunglasses
5.4 MATERIALS
N/A
5.5 PREPARATIONS
a) Open the manhole lid.
b) Using a cutter remove all the zip ties holding the sensor cables in place using a cutter.
c) Remove the battery and the snap hook from the O-ring.
d) Disconnect the battery (1) from the A-Eye Sensor (2).
Figure 3-1: Battery Removal
5.6 SENSOR ASSEMBLY REMOVAL
a) Manually loosen the butterfly screws (5) from the arm assembly (2).
b) Using a 13 mm hex socket and 13 mm hex wrench, remove Securing Bolt (1) and Nut (3) from the sensor arm assembly (2).
c) Remove the sensor assembly (4) from the arm assembly (2).
d) Lift the sensor assembly (4) from the maintenance hole.
Figure 3-2: Sensor Assembly Removal
6 SYSTEM BATTERY
6.1 SYSTEM BATTERY
The battery is a standalone battery and has its values.
Note: Replace the battery in one of the following cases:
1. Battery values are 9.5-10V. The battery can work for another 5-7 days until empty.
2. In case the manhole overflows or there is a blockage, take the damaged battery to dry and recharge.
Figure 5-1: A-Eye System Battery values
7 A-EYE SENSOR CLEANING
Refer to the following article for details AEYE Maintenance
Figure 7-1: A-Eye Sensor Cleaning