• WaterCompass Installer Kit
• WaterCompass Installer App (iOS or Android)
• Sand Paper (180-220 Grit)
• Dialectic Grease 
• Cable ties (long)
• Flashlight or headlamp
• Zip Tie Tensioner
• Wire cutter or wire snipper
• Ladder (at least 6-foot)

• FM350 flow monitor
• Antenna
• Antenna mounting bracket
• Antenna mounting template
• Four cable ties (mounting device)
• Six 3/16" x 1-¼" concrete screws
• “Do Not Remove” Sensor Tag

Play Button (Green Button): Press and hold the green play button for ~3 seconds. The device will enter meter mode, where it will capture and report usage data.

Bluetooth Button (Blue Button): Press and hold the bluetooth button for ~3 seconds. The device will enter bluetooth mode and start advertising the serial number of the flow monitor. 

Wireless Icon: Confirms connections status of LTE cellular or bluetooth broadcast. 

Water Icon: Confirms water is in the pipe and system passed pipe setup

Note: Try not to press any buttons on the device before installation. This installation process will specify when to press each button. 

Device Configuration Label: Located on the side of the flow monitor and provides configuration information for Factory configured and Site configured devices. 

• Preset reference calibration for pipe size and material. 
• Configure the pipe size and pipe material in the field. 
• Settings can be adjusted and updated after install. 

• Ensure the pipe provides water to the area of the building you want monitored.
• Select a pipe location that is at least 10" long. 
• Select a location downstream of bends or obstructions (as far as possible).
• Avoid pumps or motors that may cause interference. 

Straight Run Requirements

To ensure precise flow monitoring, it is critical to install the FM350 on clean pipe material. Before attaching the device to the water supply line, it's essential to prepare the pipe material for hardware installation. 

• Remove a section of insulation if present.
• Remove any tape or other coverings.
• If the pipe is painted, strip off the paint (see Step 2: Pipe Smoothing)

• Sand down the section of pipe where the device will be installed.
• Sand the pipe in a circular motion. 
• Use 180-220-grit sandpaper to effectively remove paint and prepare the pipe material for hardware installation. 
• Wipe down the pipe thoroughly once smoothing is complete. 

This step covers threading the zip ties onto the flow monitor and applying coupling gel to the transducer pads in preparation for successfull pipe installation. 

Step 1-1: Position the Zip Ties

• Turn the flow monitor over and locate the zip tie inserts on the bottom of the device. 
• Position the zip ties so the head of the zip ties is facing up and towards you.  

Step 1-2: Thread the Zip Ties

• Position each zip tie so the head faces up and toward you.
• Push each tie through its insert until it pops out the other side. 

Step 1-3: Apply UltraSonix Coupling Gel

• Apply UltraSonic Coupling Gel or Dielectric Grease to the transducer pads on the underside of the FM350.

Proceed to Step 2: Verify Flow Monitor Orientation.

This step ensures the FM350 is correctly oriented on the pipe before installation. Confirming orientation now prevents inaccurate flow measurement after the device is secured. 

1. Identify whether the pipe runs vertically or horizontally at the selected installation location.
2. Reference the diagrams below and confirm the correct device orientation for your pipe configuration before proceeding. 

Vertical Pipe

Horizontal Pipe

Proceed to the application installation step for your configuration:

• Step 2A - Exposed pipe 
• Step 2B - Backflow preventer 
• Step 2C - Below-ground 

This step covers attaching the FM350 directly to an exposed section of any water supply line that has had the pipe surface prepared for installation. 

Before beginning, complete Phase 1: Pipe Preparation to clean and smooth the pipe surface.

Step 2A-1: Attach the FM350 to the Pipe

1. Place the FM350 onto the pipe in the prepared section. 
2. Ensure the device is centered so that both black rubber transducers are in full contact with the pipe surface.
3. While firmly holding the device in place, tighten the zip ties until the FM350 is snug and securely attached to the pipe. 

Step 2A-2: Secure Zip Ties

1. Once the device is firmly secured, use the zip tie tensioner tool to set the zip ties. 
2. Trim any excess plastic tail flush to finish. 

Proceed to Step 3: Mount and Connect the Antenna

This step covers attaching the FM350 to the pipe downstream of a Backflow Preventer (BFP).

Before beginning, complete Phase 1: Pipe Preparation to clean and smooth the pipe surface.

Step 2B-1: Select the Installation Area

1. Confirm the downstream pipe section of the back flow preventer.
2. Verify there is at least 8" of straight run of pipe to secure the FM350.

Step 2B-2: Attach the FM350 to the Pipe

1. Place the FM350 onto the downstream pipe section at the inside pipe elbow.
2. Ensure the device is centered so that both black rubber transducer pads are in full contact with the pipe surface.
3. While firmly holding the device in place, tighten the zip ties until the FM350 is snug and securely attached to the pipe.
4. Once the device is firmly secured, use the zip tie tensioner tool to set the zip ties. As a best practice, ensure that the heads of the zip ties are positioned approximately 90° to 180° away from the flow monitor.
5. Trim any excess plastic tail flush to finish.  

Step 2B-3: Mount the antenna to the Pipe

Assemble the Antenna and L-Bracket:

1. Remove the retainer nut and washer from the antenna, then disconnect the antenna cable.
2. Thread the antenna cable's SMA connector through the top opening of the L-bracket. Pull the cable through until the antenna's threaded base seats through the top hole of the L-bracket.
3. Thread the washer and then the retainer nut over the antenna cable's SMA connector. Tighten the retainer nut to the antenna cable's threaded base, securing the washer between the L-bracket and the retainer nut. 

Mount the Antenna Assembly:

1. Position the antenna at the highest achievable point on the pipe. 
2. Secure the L-bracket to the interior pipe elbow using zip ties or alternative method. 
3. Adjust and secure the antenna cable length as needed using a zip tie.

Once the device is secured:

• Connect the antenna cable to the FM350's SMA connector.

Step 2B-4: Protect the exposed FM350 (If applicable)

1. Wrap the pipe and FM350 with pipe insulation tape to protect the device. 
2. Protect the flow monitor and antenna. 
3. Note: If a back flow cage is present, then you do not need to protect the device with insulation tape. 

Proceed to Step 4: Connect to LTE Cellular

This step covers the site preparation, excavation, valve box installation, and below-ground-specific hardware mounting required when installing the FM350 on a below-ground water supply line located between the utility water meter and the building. 

Before beginning, complete Phase 1: Pipe Preparation to clean and smooth the pipe surface. 

Step 2C-1: Select the Installation Area

1. Confirm the pipe location meets all standard pipe selection criteria outlined in the Select a Pipe Location section. 
2. Verify the surface area at the selected location is at least 20" wide x 25" long, free of obstructions. This accounts for the valve box dimensions (14"W x 17" L) plus 3" clearance on each side.
3. Confirm there is sufficient vertical clearance to accommodate the 12" deep valve box plus 3" of gravel beneath it. The maximum support installation depth is 20". 
4. Mark the planned location with flag or paint. 
5. Review the location with a property representative to identify any potential underground utility or infrastructure conflicts.

Step 2C-2: Excavate the Hole

1. Follow all local excavation requirements before beginning any digging.
2. If excavation will exceed 16" in depth or requires mechanical equipment, call 811 before digging. Calling 811 will connect you to your local one-call center, which will dispatch utility locators to mark underground lines with flags and/or paint.
3. Locate the nearest isolation valve or water meter shut-off before excavating, in case of emergency. 

Step 2C-3: Excavate the Hole

1. Mark the excavation area 3" longer and wider on each side than the valve box dimensions.
   • Total hole dimensions: 20"W x 25"L x 15" H
2. Dig down to expose the water supply line. Take care not to damage the pipe during excavation.
3. Dig the hold 5" deeper than the pipe's depth to allow space for the gravel drainage layer.

Step 2C-4: Prepare the Base

1. Add a 3" layer of small pea gravel evenly across the bottom of the hole.
   • Approximately 1 cubic foot of pea gravel is required (two 0.5 cu ft. bags)
2. Confirm the gravel surface is level before proceeding. This will serve as the foundation for the valve box and provide the necessary drainage to prevent flooding.
3. Set aside any remaining gravel for use inside the valve box after installation.

Step 2C-5: install the Valve Box

1. Place the 14" W x 19" L x 12" H valve box onto the leveled gravel base.
2. Confirm the box is level and centered over the exposed pipe.
3. Backfill the hole with excavated soil around the outside of the valve box. Compact the soil gently to secure the box in place.
4. Distribute the remaining pea gravel evenly across the bottom of the valve box interior. Do not cover the pipe. Ensure there is clearance between the pipe and the gravel surface.
5. Remove excess soil from the site. Consult the property representative for an approved on-site disposal location, or remove and dispose of responsibly. 

Step 2C-6: Mount the antenna in the Valve Box

Assemble the Antenna and L-Bracket:

1. Remove the retainer nut and washer from the antenna, then disconnect the antenna cable.
2. Thread the antenna cable's SMA connector through the top opening of the L-bracket. Pull the cable through until the antenna's threaded base seats through the top hole of the L-bracket.
3. Thread the washer and then the retainer nut over the antenna cable's SMA connector. Tighten the retainer nut to the antenna cable's threaded base, securing the washer between the L-bracket and the retainer nut. 

Mount the Antenna Assembly:

1. Position the antenna at the highest achievable point within the valve box, ensuring the ope of the antenna faces upward.
2. Secure the L-bracket to the interior wall of the valve box using the included self-tapping concrete screws and a drill with a 3/16" socket head bit.
3. Adjust and secure the antenna cable length as needed using a zip tie.

Step 2C-7: Attach the FM350 to the Pipe

Follow the standard zip tie preparation and diaelectric grease application steps in Phase 2, Step 1, before proceeding.

• Below-ground sensor orientation is critical. To prevent air bubble interference from the top of the pipe, the FM350 must be mounted to the side of the pipe.
• Do not mount the device on the top of the pipe in a below ground installation.

1. Place the FM350 onto the downstream pipe section at the inside pipe elbow.
2. Ensure the device is centered so that both black rubber transducer pads are in full contact with the pipe surface.
3. While firmly holding the device in place, tighten the zip ties until the FM350 is snug and securely attached to the pipe.
4. Once the device is firmly secured, use the zip tie tensioner tool to set the zip ties. As a best practice, ensure that the heads of the zip ties are positioned approximately 90° to 180° away from the flow monitor.
5. Trim any excess plastic tail flush to finish.  

Once the device is secured:

1. Connect the antenna cable to the FM350's SMA connector.

Step 2C-8: Finalize the Installation

1. Confirm the valve box lid sits flush with or slightly above ground to ensure future accessibility.
2. Secure the valve box lid using a 3/8" x 2-½" stainless steel bolt with a washer.

Important Notes

• Do not install the FM350 on pipes with rust, insulation, or heavy corrosion.
• Mount the sensor to the side of the pipe only. Do not mount to the top of the pipe in below-ground installations.
• Ensure the sensor is on a straight section of pipe for accurate readings.
• Ensure proper drainage in the valve box to prevent water pooling around the device.
• Follow all local codes and utility marking requirements before digging. 

Proceed to Step 4: Connect to LTE Cellular

Proper antenna placement is critical to ensure reliable LTE connectivity. Follow these guidelines based on the installation environment. 

Antenna Mount Best Practices

• Install as high as possible to maximize LTE signal
• Avoid obstructions (except vault lid)
• Use template to position the antenna near the lid
• Use extension cable if needed for better reception

Wall Mount

• Mount the antenna to the highest point achievable within the environment.
• Extend the antenna if necessary. 

Pipe or Conduit Mount

• Mount the antenna directly to the vertical or horizontal pipe using zip ties. 
• Ensure the antenna is secure and the direction of the antenna is not going to move. 

Backflow Preventer 

• Mount the antenna directly to the vertical pipe using zip ties.
• Mount the antenna on the inside of the back flow preventer for added protection.  

Attach the Antenna

• Attach the antenna to the external SMA connector.
• Ensure antenna connection is hand tight & secure. 

Press and hold the play button for 3 seconds to connect the FM350 device to the cellular network. 

• Give the device 1 - 2 minutes to complete the connection cycle. 
• Note: There are 2 LED lights on the flow monitor. Each LED light is located in the wireless and water icons on the front of the device.

The solid green LED in the wireless icon indicates the flow monitor is connected to the network.

The solid red LED is the water icon indicates the device failed pipe setup result. This is expected. 

The solid green LED in the water icon indicates the device passed pipe setup and water is in the pipe.

• Note: When both lights are green, you will know that water is detected and the device is connected to the cellular network. 

Troubleshooting: If either of the LED lights turns Red, this means the device is not detecting water, is not connected to the network, or both. Press the play button once again for 3-seconds to attempt to connect. 

Please see the LED Indicator Guide below for more details on LED behavior. 

Proceed to Phase 3: Activation & Configuration

Establish a bluetooth connection between the mobile app and the FM350 device. 

Press the bluetooth button on the FM350 device. 

In the app, tap Connect. 

Review the Bluetooth connection details.

• Stay within 5 feet of the device to maintain connection. 

Select the serial number of the FM350 from the list. 

• Once connected, press Next to continue. 

Proceed to Step 2: Configure the Flow Monitor

Verify that the device has a stable LTE connection and successfully communicates. 

Tap View Device from the main screen. 

Verify device communication:

• Ensure cellular connection is Pass.
• Signal strength should be medium or greater. 

Return to the main screen and tap Device Options. 

Proceed to Step 3: Configure the Flow Monitor

Add the virtual warehouse site, select the monitoring point, enter location details, and activate the flow monitor. 

Tap Install Device.

Select a Site the installation site by pressing Play button (Pro Services virtual warehouse)

Choose Monitor Point under General. 

Tap Create New Monitoring Point.

Fill in all required Monitoring Point Details.

• Select the field name to access a drop dow menu with field options.
• Confirm the pipe size and material before entering.
• Unit of Measure will default to Gallons. 

Add Location Information (GPS Coordinates, location description, etc.)

• Tap Add Device Location to add the latitude, longitude and Timezone.
• Enter detailed location description. 

Tap Save to complete the setup.

Select OK to proceed with the Configuration Update. 

Press the Bluetooth button on the flow monitor to update the Pipe Configuration on the device.

• Disconnects bluetooth and initiates communication on LTE Cellular. 
• Do Not Press the Play button. LTE will automatically connect when BT disconnects.  

• The Water Icon will turn from Red to Green when the Pipe Configuration successfully updates.

Proceed to Step 4: Verification and Wrap Up

Ensure configuration is correct, while verifying the pipe setup.

Note: You must reconnect to the device via bluetooth once the LTE cellular communication call has completed and the pipe configuration has updated. Please see Step 1 for a reminder on how to connect to bluetooth. 

Tap View Device from the main screen. 

Verify the Pipe Installation Results

• Confirm PSR is Pass
• Confirm Gain is Pass

Verify the Device Configuration.

• Confirm the pipe size and material match the physical pipe details. 

Perform a Flow Verification

• Tap View Pulses while water is actively flowing.
• Confirm the Real-time Flow (GPM) is registering with flow. 

Proceed to Phase 3: Complete the WCIR

Important: Fill out the installation report before departing the site. 

Click here to access the WaterCompass Installation Report (WCIR)

• Fill out Installer Information 
• Fill out Customer and Site Information
• Select ‘New Installation’ from the Installation Scope of Work menu.  

• Select FM350 Installation from the 'Which model of WaterCompass flow monitor are you installing? 

• Complete all required fields and take the required photos where applicable.

Pressing the Bluetooth button initiates the device's Bluetooth signal broadcasting. A blinking blue LED light will confirm the Bluetooth signal is successfully broadcasting. To switch back to the cellular connection,  press the Bluetooth button once, followed by a 3-second press on the Play button. 

LED Indicators for Communication (Wireless Icon):

Wireless Icon LED Color	LED Meaning	LED Indicator
Blink Blue	Displays when the unit is in Shipping Mode and/or is advertising itself for Bluetooth connectivity.
Blink Yellow	Displays when the unit is connecting to LTE cellular.
Blink Green	Displays when the unit has successfully connected to LTE and is waiting for the cloud servers to respond.
Solid Green	Displays when the unit has successfully connected to the the cloud via LTE. The LED will remain on for roughly 27 seconds.
Solid Red	Displays when the unit failed to connect to the cloud via LTE. The LED will remain on for roughly 27 seconds. Please try to connect again by pressing and holding down the PLAY button for 3-seconds.

LED Indicators for Flow (Water Icon):

Water Drop Icon LED Color	LED Meaning	LED Indicator
Solid Green (Good)	Displays only once, right after the PLAY button has been pressed (subject to change in future firmware update) and confirms the pipe is full and/or full with flowing water. The LED will remain on for roughly 27 seconds. It will not display again.
Solid Red (Bad)	Displays repeatedly, right after the PLAY button has been pressed and indicates a failure to detect the pipe is full and/or full with flowing water. The LED will remain on for roughly 27 seconds. It will display again, after the PLAY button has been pressed, if no water in the pipe is detected.
No Light (Good)	After the PLAY button has been pressed, and a previous Solid Green LED was displayed at some moment in the past, the absence of either a Solid Green or Solid Red light from the LED is equivalent to a Solid Green light. Nothing displaying on the LED is the same as a Solid Green light and confirms water was, and still is being detected.

Connect via Bluetooth

• Open the WaterCompass app and connect to the new device via bluetooth.
• See Phase 3: Step 1 for details on connecting to Bluetooth.

Select View Device.

Tap the three dots in the top right corner.

Choose Device Diagnostics.

Device connects to cellular to complete diagnostics. 

• Cellular Event = Connecting

Diagnostic status update received.

• Cellular Event = Ready
• State Machine Events must be one of the following:
  • [9,6,7] or
  • [9,6,5]
  • Call support from the site if the state machine is anything else. 

Diagnostics completes and cellular disconnects.

• Cellular Event = Moved_To_Offline
• This means the cellular connection ended and diagnostics is complete but Bluetooth is active. 

Take a screen shot of the Diagnostic data.

Re-run diagnostics or use the back arrow to exit. 

Reset the UltraSonix device back to the default state it was shipped in. 

Connect via Bluetooth

• Open the WaterCompass app and connect to the new device via bluetooth.
• See Phase 3: Step 1 for details on connecting to Bluetooth.

Select View Device

Select the 3 dot “kabob” menu in the top right corner

Select “Reset to Shipping Mode”

Press the “Reset” Button

The Bluetooth connection will disconnect and provide the message “Not Connected”

Connect via Bluetooth

• Open the WaterCompass app and connect to the new device via bluetooth.
• See Phase 3: Step 1 for details on connecting to Bluetooth.

Select View Device

Select the 3 dot “kabob” menu in the top right corner

Select “Run Pipe Setup”

Press “Run Setup”

Press OK to verify Pipe Setup Results

Verify the Pipe Installation 

• PSR is Pass
• Gain is Pass

After removing the old device, complete all applicable steps in Phase 2: Hardware Installation before proceeding with Bluetooth connection to the new monitor.

Connect via Bluetooth

• Open the WaterCompass app and connect to the new device via bluetooth.
• See Phase 3: Step 1 for details on connecting to Bluetooth.

Initiate Device Replacement

From the Device Options menu, select Replace Existing Device. 

Enter the Serial Number of the Removed Device

A dual verification prompt will require the serial number a second time to confirm accuracy. 

Confirm Device Replacement Details

• Ensure the Account, Site, and Water Meter Name are correct.
• Verify both the Removed Device SN and New Device SN are accurate. 

Select Next once all information is confirmed. 

Update Monitoring Point Details

Based on the type of device being replaced update the monitoring point field accordingly:

• FM250 → FM250 or FM350 → FM350: Confirm or update existing monitoring point details. 
• FM250 →FM350: Update applicable field to reflect to reflect the new device configuration. 
• FM350→FM250: Update all applicable fields to reflect the new meter information. 
• Select Save.

Select OK to proceed.

Press the Bluetooth button on the flow monitor to update the Pipe Configuration on the device.

• Disconnects bluetooth and initiates communication on LTE Cellular. 
• Do Not Press the Play button. LTE will automatically connect when BT disconnects.  

The Water Icon will turn from Red to Green when the Pipe Configuration successfully updates.

Ensure configuration is correct, while verifying the pipe setup.

Note: You must reconnect to the device via bluetooth once the LTE cellular communication call has completed and the pipe configuration has updated. Please see Step 1 for a reminder on how to connect to bluetooth. 

Tap View Device from the main screen. 

Verify the Pipe Installation Results

• Confirm PSR is Pass
• Confirm Gain is Pass

Verify the Device Configuration.

• Confirm the pipe size and material match the physical pipe details. 

Perform a Flow Verification

• Tap View Pulses while water is actively flowing.
• Confirm the Real-time Flow (GPM) is registering with flow. 

Proceed to Phase 3: Complete the WCIR

1. A 1.25 oz tube of white lithium grease.

2. A .3oz tube of dielectric grease

3. A 3oz tube of silicone dialectric grease