FM300 Installation Guide .25" - 2" (LC+ & FD-Q)

Updated November 4, 2025 3 min read

Introduction

This document covers installation for the WC-FM300-US Ultrasonic Flow Monitor for pipe sizes of 1/4 - 2”.

The WaterCompass FM300 Ultrasonic Flow Monitor is a clamp-on flow monitor with a 30 V power supply that connects to the WaterCompass Data Collector.

The monitor sends real-time flow data to the WaterCompass Data Collector that is viewed from the WaterCompass dashboard. Hourly summation of flow data is stored for analysis and reporting.

Contact Information:

WaterCompass 707-285-3250

proservices@hydropoint.com

Before you begin, review the safety precautions at the end of this installation guide.

Pre-Configured Settings

To ensure accuracy, the Flow Moniotor will be pre-configured with the following settings:

  • Pipe size (varies)
  • Pipe type (varies)
  • Flow direction (right)
  • K-value (60.1)

Materials Provided

  • WaterCompass Data Collector (LC+)
  • WaterCompass Flow Monitor
  • 50' of multi-conductor (3+) shielded plenum rated 18 AWG cable
  • 4 wire nutes
  • 4 Data Collector mounting screws
  • Barrel connector

Equipment Needed

  • Philips head screwdriver with long shaft
  • Torx screwdriver (for pipes larger than 2")
  • Lock Nut
  • Zip Ties
  • J-box and fittings

Installation Overview

Phase 1: Data Collector Installation

Step 1: Mount the WaterCompass Data Collector

Step 2: Connect the Data Collector to AC Power

Step 3: Verify Data Collector is Online & Activated

Phase 2: Flow Monitor Installation 

Step 4: Choose a Location to Install the Flow Monitor

Step 5: Attach the Flow Monitor to the Pipe

Step 6: Connect Flow Monitor Sensor Wires to the DC

Phase 3: Flow Validation 

Step 7: Validate Proper Flow Stability 

Step 8: Validate Flow on the Data Collector

Appendix

Appendix A: Selecting an Installation Location 


 

STEP 7
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