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

Updated November 4, 2025 1 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 Monitor 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 (OXR)
  • 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


 

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