Meter Box:

1. Position the FM250 device within the shallow meter box.
   1. Install the hardware to minimize interference with the meter register, ensuring it is situated out of the way. 
   2. Take care to prevent the entanglement of the FM250 sensor with any existing AMI or AMR cables employed by the water department.

Utility Vault or Inside the building:

1. Mount the FM250 device on an adjacent wall.
   1. Position the device as high up on the wall of the utility vault or mechanical room as feasible during installation.

Utility Box:

1. Install the antenna in the best location within the utility box.
   1. Extend the antenna if necessary. 

Utility Vault or Inside the building:

1. Mount the antenna to the highest point achievable within the meter environment. 
2. Extend the antenna if necessary. 

1. The flat side of the sensor should interface with the meter register.

1. Attach the sensor to the meter register
2. Use the hose clamp provided. 
3. Hand tighten the hose clamp to the point the sensor does not move or wiggle. Gently move the cable back and for at the base of the sensor to verify the sensor is secure and will not move. 

Best Practice: Install the sensor at the 3 o'clock or 9 o'clock position on the water meter register unless otherwise instructed. 

Neptune T-10: Place sensor at the 4 o'clock position on the meter register approximately ¼" - ½" up the register.

FM250 Dongle

Water Meter Pulse Cable

FM250 Dongle

Water Meter Pulse Cable

White Wire (No Stripe)

Black Wire (GND)

White Wire (Green Stripe)

Green Wire (PULSE)

Brown Wire (w/ Heat Shrink)*

Red Wire (VDC)

1. Press and hold the green button on the FM250 device for at least 3 seconds. 

Note: Pressing the Green button activates the LED beneath the Blue button, and its illumination is contingent on the interaction with the Green button. 

• The LED light on the right will blink yellow.
• The LED light will then blink green. 
• The LED light will then turn solid green. 

Note: Please wait approximately 1 minute before continuing to phase 2, providing the FM250 device to time finish initial communication with the server. 

Locate an exterior hose bib, open a valve on the water meter's back flow preventer, or find a location inside the building such as a restroom where you can run a faucet with consistent flow for at least 3 minutes. 

1. Run water for approximately 3 minutes
2. Confirm that the sensor is registering pulses in its present position on the meter. Proceed to Step 2 if pulses are being detected.

Troubleshoot: If the sensor is not collecting pulses, relocate the sensor by 1 hour" on the meter register. For example, if the sensor is currently at the 3 o'clock position on the register and is not collecting pulses, move the sensor to the 4 o'clock position and try again. 

1. Press and hold the green button on the FM250 for 3 seconds.
2. Take a photo of Base Meter Reading.
3. Record the time of the base meter reading. 

• In this example, the meter reading is 518757.

1. Press and hold the green button on the FM250 for 3 seconds.

2. Take  a photo of the Calibration Meter Reading.

3. Record the time of the calibration meter reading. 

• In this example, the meter reading is 518761.

           1. Press and hold the green button on the FM250 for 3 seconds.

2. Take a photo of the Verification Meter Reading.

3. Record the time of the calibration meter reading. 

• In this example, the meter reading is 518766.