Online4US - Compact Online Monitoring

Overview

Online4US is a compact 4-channel online monitoring system for continuous ultrasound condition control of equipment. It's an ideal solution for individual machines or small production lines.

Features

Compactness

• 4 channels — optimal for most applications
• Small footprint — easy to install anywhere
• DIN rail mounting — standard mounting method
• Low cost — affordable solution

Connectivity

• Built-in web server — configuration through a browser
• Modbus TCP/IP — PLC integration
• 4-20 mA — analogue outputs
• Cloud connectivity — optional

Sensors

• SDT LUBEsense — for lubrication
• Contact sensors — for mechanical issues
• Airborne sensors — for leaks
• Universal — multi-purpose application

Applications

Individual machines

• Electric motors — large electric motors
• Pumps — critical pumps
• Compressors — air/gas compressors
• Fans — large fans

Small systems

• Pumping stations — 2-4 pumps
• Compressor rooms — 1-2 compressors
• Cooling tower fans — cooling towers
• Conveyor lines — head/tail drums

Advantages

Easy installation

• Plug and play — fast setup
• Web interface — intuitive
• DIN rail — standard mounting
• Compact — minimal space required

Cost savings

• Low cost — affordable price
• Fast payback — ROI
• Less downtime — prevention
• Maintenance optimisation — predictive

Monitoring

• 24/7 — continuous control
• Trends — historical data
• Alarms — early warning
• Integration — with existing systems

Technical specifications

Parameter	Value
Channels	4 fixed
Frequency range	20-100 kHz
Analogue outputs	4 x 4-20 mA
Digital protocol	Modbus TCP/IP
Web server	Built-in
Power	24V DC / PoE
Enclosure	IP65
Temperature	-20°C to +60°C
Dimensions	150 x 100 x 50 mm

Configurations

Bearing Monitoring

• LUBEsense sensors — fitted to bearings
• Friction levels
• Lubrication trends
• Early warning

Leak Detection

• Airborne sensors — for leaks
• Compressors
• Compressed-air systems
• Gas lines

Mechanical

• Contact sensors — mechanical defects
• Pumps
• Fans
• Other equipment

Web interface

Dashboard

• Real-time values
• Trends
• Alarms
• System status

Configuration

• Alarm thresholds
• Polling intervals
• Calibration
• Users

Integration

• Modbus mapping
• Analogue output configuration
• Cloud settings
• API access

Comparison

Solution	Channels	Cost	Application
Online4US	4	$	Individual machines
Vigilant	up to 16	$$	Lines, plants
SDT340	Portable	$$$	Technologist/expert

Applications by industry

Water supply

• Pumping stations
• Treatment plants
• Water intakes

Manufacturing

• Critical lines
• Key equipment
• Batch processes

Power generation

• Boiler houses
• Small CHP plants
• Wind turbines

Oil and gas

• Pumping stations
• Compressor stations
• Booster stations

ROI and payback

Savings

• Failure prevention — one prevented failure pays for the system
• Maintenance optimisation — service only when needed
• Reduced downtime — fewer unplanned stoppages
• Equipment life — extended service life

Return on investment

• Payback in 6-18 months
• Depends on equipment criticality
• Downtime cost is factored in

Permanent Monitoring

Online4US is part of a series:

• Vigilant — scalable system
• Online4US — compact 4-channel unit
• LUBEsense — standalone sensors