Echo® Wireless Vibration Monitoring System


This certification ensures that Echo® has been designed to minimize the risk of a potential explosion in applications where flammable gases may be present.

EchoPlus® Wireless Junction Box

Model 672A01

Typical Applications:

It has never been easier to integrate Echo® into your plant monitoring system!

The EchoPlus® Wireless Junction Box is an 8-channel junction box that instantly converts installed industrial sensors to wireless operation. This incredibly economical device periodically powers each sensor, makes the same set of overall measurements as Echo® and transmits them wirelessly. The default transmission interval is 8 hours, but it is also user-programmable. Additionally, it operates as a standard junction box allowing full data collection with a portable data collector at the box. It can be powered using either standard 24 VDC or any battery between 6 and 13 VDC. The unit can be used by itself or in conjunction with an existing junction box by simply jumping wires between them.

Echo® Wireless Vibration Monitoring System

A Simple, Affordable, EffectiveWireless Vibration Monitoring System

Why use valuable manpower to collect vibration data on healthy machines? Why settle for measurements once a month when you can have them multiple times daily? Why have people venture into unsafe areas to collect routine measurements? Echo® Wireless Vibration Sensors can safely “look” at the machine’s health several times per day and provide immediate notification when warning or critical levels are reached. This frees up technical experts, like certified vibration analysts, for higher value tasks such as fault analysis.

  • Easily integrates with legacy vibration
    and plant monitoring systems via Modbus®
  • Eliminates expensive cable runs
  • Transmits long distances
  • Runs standalone or with junction box
  • Stores data in ODBC format
  • Requires no repeaters, gateways, or mesh
  • Class 1, Division 2 Certified for use in hazardous areas!


The Echo® Wireless Vibration Monitoring System has been tested and found to perform particularly well in a number of different types of plants including: power, steel, food processing, paper, chemical and automotive. The system has performed reliably and provided accurate and useful data regarding machinery health.

Fault Detection

The Echo® Wireless Vibration Sensor and the EchoPlus® Wireless Junction Box make the set of overall vibration measurements, listed below, that provide early warning of most common machine faults. In addition to these measurements, Echo® provides accurate battery status. Using a user-programmable vibration threshold, Echo® can detect if the machine is not running and if not, skip a measurement to conserve battery power.

The four primary measurements that the Echo® system transmits are:

  • RMS Velocity - for “Balance-of-plant” faults such as imbalance, misalignment and flow problems
  • RMS Acceleration - for higher frequency faults and high frequency energy (HFE) detection such as high speed gear mesh, broken rotor bars and loss of bearing lubrication
  • True Peak Acceleration - for bearing, gear and impulsive faults, including looseness
  • Crest Factor - for fault severity indication

The Echo® Wireless Vibration Sensor is a stand-alone, battery powered industrial vibration sensor. Echo® has an LED that provides visual feedback on the status of the sensor, including: on, off, measuring, transmitting, or changing states. The sensor has an embedded magnetic switch and can be activated or deactivated by holding a strong magnet next to the sensor. Upon activation, the sensor makes and transmits a set of measurements.

Many applications ideally suited for wireless technology are located in classified hazardous environments, and they require specialized certifications for electronic instrumentation. IMI now offers a version of the Echo® Wireless Vibration Sensor that is certified by CSA to a Class I, Division 2 rating (Groups A, B, C, D). The new model CS670A01 can be used in hazardous applications, such as oil wellheads, for remote wireless vibration monitoring on these machines.

Echo® Monitoring Software provides two major functions:

  • Collect transmission data reported by the receiver and store in the SQL database and/or Modbus® response file
  • Present Echo® sensor data to the user through an intuitive and concise interface that includes:

  • Configuration utilities to setup a machinery database and set alarms levels
  • Tabular displays to view live and historical data
  • System level sensor status display to warn of low batteries,low RF signal, or missed measurements
  • Alarm reporting - graphically via system status screens and electronically via email

  • Single and multi-sensor plot displays with alarm levels to show trends
  • Hard copy report generation for last transmission and alarm events
  • Additional utilities to query and program Echo® Sensors, EchoPlus® Junction Boxes and Echo® Receivers

Echo® Data Client Service

Echo® sensor data is stored by the Echo® Data Client Service software in a Microsoft SQL database. The database structure is available from IMI® so it can be accessed by users directly using any ODBC compliant application. The Echo® Data Client Service can also be configured as a Modbus® TCP/IP Server to service Modbus® requests from an existing Modbus® Client application.

  • Installs locally or on a server
    (It is highly recommended that the service is installed on a dedicated PC or Server running 24/7)
  • Runs continuously whether a user is logged on or not
  • SQL Database interface and/or Modbus® TCP/IP
  • Provides email alerts if SQL interface is enabled
  • Service status application runs from notification tray to view service/receiver status

Echo® Data Client Service

Echo® data can also be exported from the Echo® Data Presentation Software to a tab delimited spreadsheet file that is suitable for use with Excel or other data viewing applications for post processing. Contact IMI® to discuss other interfaces to legacy condition monitoring programs and plant monitoring systems.

  • Runs in single or multi-user environments and does not affect the Data Client Service it collects (Ideally a dedicated PC would also be used to run the Presentation Software continuously for constant monitoring of the alarm display)
  • Provides data alarms, trend plots and history
  • Provides sensor status and configuration utility
  • Live data window to view receiver activity

Modbus® is a registered trademarks of Schneider Electric and/or its affiliates in the United States and/or other countries.

Echo® Wireless System Overview

The Echo® Wireless Vibration Monitoring System is simple in design, easy to install, cost-effective and flexible in configuration. With 12 independent RF bands and over 400 points per receiver, the system can monitor over 5,000 points even within the same RF coverage area. Outside the same coverage area, the number is even higher. Stand-alone Echo® Sensors and EchoPlus® Junction Boxes can be mixed and matched as desired. EchoPlus® and optional RV Echo® provide a raw vibration output via cable to a data collector for detailed fault analysis. Echo® Monitoring Software provides standard monitoring features such as: machine status, reports, trend plots and email alerts. It can be run single or multi-user at no additional charge per user.