Included with the FM350 Installation Kit:

What you will need:

• FM350 flow monitor
• Antenna
• Antenna Mount
• Antenna mounting template
• Six 3/16" x 1-¼" concrete screws
• “Do Not Remove” Sensor Tag

• WaterCompass Installer App
• Cable ties (long)
• Flashlight or headlamp
• Zip Tie Tensioner
• Wire cutter or wire snipper
• Ladder (at least 6-foot)

Device Type

Device Legend

Calibration Type

Photo Example

Factory Configured

Factory calibrated for a specific pipe size and material.

• Data accuracy will be affected if the device is installed on the wrong pipe. 
• Placing the FM350 on the wrong pipe may result in no data capture at all.

Site Configured

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. 

Pipe Diameter:

Required Straight Run of Pipe:

½" - 1" 

10"

2"

20"

3"

30"

Instruction

Photo Example

1.  Turn the flow monitor over and locate the zip tie inserts on the bottom of the device. 

Note: Please use the nylon 12 zip ties provided with the installation kit. This will ensure the zip ties do not fail in situations where the flow monitor is submerged. 

3. Push the zip ties though the inserts until it pops out the other side of the insert. 

4. Install both zip ties in the device. 

Instruction

Photo Example

1. Ensure the flow direction of the device is pointing in the same direction as the actual water flow of the pipe. This is critical for proper function of the flow monitor. 

Note: The play button on the front of the device matches the flow direction of the device. Use the play button as a guide to ensure the flow direction matches. 

2. Apply Ultrasonic Coupling Gel or Dielectric Grease to the transducer pads on the bottom of the FM350 device to ensure a strong bond between the ultrasonic transducers and the pipe material.

Note: Please see the Appendix for coupling gel options. 

Note: It is recommended the installer use a zip tie tensioner to secure the device to the pipe using the zip ties. 

3. Affix the flow monitor to the pipe in the section you have selected for installation using the zip ties. Surface of the pipe should be free of dirt, dust, and paint prior to installation. If needed, sandpaper can be used to remove paint or patina from the pipe surface. 

4. Place the flow monitor over the pipe, ensuring the device is centered over the pipe so the 2 black rubber pads (transducers) on the device are in full contact with the pipe. 

5. Tighten the zip ties so the flow monitor is snug and securely attached to the pipe. DO NOT over tighten the zip ties as this can damage the device. 

Note: As a best practice, ensure that the heads of the zip ties are positioned approximately 90° to 180° away from the flow monitor.

6. Mount the antenna bracket to a nearby wall and connect it to the SMA connector on the device 

Note: The external antenna will attach to the device using the SMA connector located on the side of the device enclosure. 

Important: Do Not move or slid the FM350 once it is securely attached to the pipe. 

Doing so could cause damage to the transducer pads on the bottom of the device, resulting in permanent damage. 

If you have to relocate the FM350 device, please remove the device completely from the pipe before moving it or relocating it on the water supply line. 

Instruction

Photo Example

Pre-Installation Prep:

• Remove tape from the pipe surface.
• Remove insulation from the pipe surface.
• Eliminate paint with sandpaper before installation. 

FM350 Placement: Install downstream of the Backflow Preventer (BFP) and secure the device on the inside pipe elbow for protection when connected to the BFP. 

1. Ensure the flow direction of the device is pointing in the same direction as the actual water flow of the pipe. This is critical for proper function of the flow monitor. 

Note: The play button on the front of the device matches the flow direction of the device. Use the play button as a guide to ensure the flow direction matches. 

Note: It is recommended the installer use a zip tie tensioner to secure the device to the pipe using the zip ties. 

2. Affix the flow monitor to the downstream section of the back flow preventer (BFP).

3. Secure the FM350 on the inside pipe elbow for protection when the device is attached to the BFP. 

4. Place the flow monitor over the pipe, ensuring the device is centered over the pipe so the 2 black rubber pads (transducers) on the device are in full contact with the pipe. 

Important: Do Not move or slid the FM350 once it is securely attached to the pipe. 

Doing so could cause damage to the transducer pads on the bottom of the device, resulting in permanent damage. 

If you have to relocate the FM350 device, please remove the device completely from the pipe before moving it or relocating it on the water supply line. 

5. Mount the antenna bracket to a nearby wall and connect it to the SMA connector on the device 

Antenna Mounting Options:

• Option 1: Vertically on pipe using zip ties if space allows.
• Option 2: On BFP base or concrete pad with antenna bracket and concrete screws. 

Note: The external antenna will attach to the device using the SMA connector located on the side of the device enclosure. 

Instruction

Photo Example

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

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. 

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. 

If you continue to receive a Red light, please call Hydropoint Contractor Support. 

Instruction

Video 

Video: Click the video for a brief tutorial.
 

Step-by-Step Instructions: See below.

Instruction

Photo Example

Step 4.1: Activate LTE Communication

1. Press the Play button to initiate LTE Communication
   • Moves the devices from Shipping Mode to Meter Mode.
2. Confirm the device has been connected by checking the LED status.
   • The device will initially fail PSR because it has not been configured for the pipe size and pipe material.  
   • The device is now waiting for configuration via the WaterCompass Installer App. 

Step 4.2: Add the Device 

1. Select your Virtual Warehouse site from the site list.
2. Tap the play icon next to the site name to view devices.
3. Tap "Add Device" in the top right corner.
4. Select “Connect” at the bottom of the screen.

Step 4.3: Enable Bluetooth Connection

1. Press the Bluetooth button to begin Bluetooth broadcasting.
2. Tap "Connect" at the bottom of the screen.
3. Follow the on-screen Bluetooth requirements and tap “Continue.”

Step 4.4: Configure the FM350 Flow Monitor

1. Create a new monitoring point.
2. Enter the following details:
   • Pipe Size
   • Pipe Material
   • Straight Run of Pipe
   • Device Location
3. Tap "Save" in the top right corner.
4. Confirm the configuration was successful.

Step 4.5: Exit Bluetooth Mode & Initiate Cellular Call

1. Press the Bluetooth button again to disconnect Bluetooth.
   • This will exit Bluetooth mode and automatically start an LTE cellular call.

Step 4.6: Confirm Pipe Configuration Update

• The red LED in the water droplet icon will change from red to green once the pipe configuration has been successfully pushed to the device via the cellular connection.

Instruction

Photo Example

Step 5.1: Establish LTE Connection

1. Press the Play button on the device to establish a cellular connection.
2. Confirm Green LED verification. 

Step 5.2: Initiate Bluetooth broadcast

1. Press the Bluetooth button on the device to establish a cellular connection.
2. Confirm Blue LED verification. 

Step 5.3: Connect with Installer App

1. In the installer app, tap "Connect" in the top right corner.
2. Follow the on-screen Bluetooth requirements and tap "Continue."

Step 5.4: Verify Installation 

1. Tap the Bluetooth icon in the top left corner.
2. Confirm that the cellular connection shows "Pass."
3. Ensure the signal strength is "Medium" or higher.

FM350 Flow Monitor Installation Verification:

1. Select the "Verify Installation" tab.
2. Verify the following:
   • ✅ Cellular connection passed
   • ✅ Pulses detected
   • ✅ Cellular carrier & signal strength
   • ✅ Battery voltage
   • ✅ Firmware version:
   • ✅ Cellular connection passed
   • ✅ Pulses detected
   • ✅ Cellular carrier & signal strength
   • ✅ Battery voltage
   • ✅ Firmware version

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

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

  Wireless Icon LED Color

LED Meaning

LED Indicator

  Water Drop Icon LED Color

LED Meaning

LED Indicator