Portable instruments have evolved through several iterations to encompass as much data collection, analytical, and correction tools as possible in a single, convenient, and light-weight package. No matter what, walking (or crawling) from one production machine point to another it is still a dangerous and uncomfortable task in most cases. What could be better than sitting in an air-conditioned computer room and having instant access to key points on a machine for performing fact-finding, root-cause analysis of difficult vibration problems?

First, let's list some desirable online system concepts:

- Frequent, on-demand sampling
- Accessibility
- Repeatability
- Speed and phase information
- Conditional data collection
- Frequent alarm checking and notification
- Action output via contact closures

These systems also lend themselves to the following applications:

- Intermittent start and stop operations - e.g. overhead cranes
- A mix and match of process variables along with vibration signals
- IF/THEN logic for conditional data collection based on speed, current, and other process variables
- Quick data scans for fast action on alarm notification on an overall value
- Polling of data on the key machine points
- Data thinning for efficient data storage and analysis
- Alarm condition notification by pc graphics, text messaging, and/or e-mail
- OPC connectivity to SCADA systems for data merging and presentation
- Browser viewing of data via Internet connections

Even with these benefits, there are traditional barriers to such an undertaking:

- Cost of hardware components
- Installation costs
- IT systems knowledge and involvement
- Systems training
- Maintenance and updating
- Lack of first-hand equipment condition observations
- Lack of systems interconnection integrity checks

There have been some recent technological changes to help the cause:

- Declining hardware costs
- Declining sensors costs
- Better, more capable and more reliable systems integration
- Wireless connectivity
- Complementary and compatible walk-around hardware
- Scalable system architecture

Users have stated that online systems technology fits best in the following applications:

- Dangerous locations
- Hazardous locations
- Remote and inaccessible locations
- Critical equipment
- Expensive equipment
- High maintenance equipment
- Equipment with known physical make-up and known failure modes and alarm thresholds

Experience has established the following key steps for a successful online system implementation:

- Start small in terms of number of points and data collection logic
- Prove out the initial concepts for system performance
- Be successful in fault finding and correction early on
- Document the results
- Recommend and implement system expansion
- Implement additions to the installed base

Tip provided by, Dennis Shreve CMRP, Support Engineer, Commtest

Upcoming Events

August 9 - August 11 2022

MaximoWorld 2022

View all Events
banner
80% of Reliabilityweb.com newsletter subscribers report finding something used to improve their jobs on a regular basis.
Subscribers get exclusive content. Just released...MRO Best Practices Special Report - a $399 value!
DOWNLOAD NOW
“Steel-ing” Reliability in Alabama

A joint venture between two of the world’s largest steel companies inspired innovative approaches to maintenance reliability that incorporate the tools, technology and techniques of today. This article takes you on their journey.

Three Things You Need to Know About Capital Project Prioritization

“Why do you think these two projects rank so much higher in this method than the first method?” the facilitator asked the director of reliability.

What Is Industrial Maintenance as a Service?

Industrial maintenance as a service (#imaas) transfers the digital and/or manual management of maintenance and industrial operations from machine users to machine manufacturers (OEMs), while improving it considerably.

Three Things You Need to Know About Criticality Analysis

When it comes to criticality analysis, there are three key factors must be emphasized.

Turning the Oil Tanker

This article highlights the hidden trap of performance management systems.

Optimizing Value From Physical Assets

There are ever-increasing opportunities to create new and sustainable value in asset-intensive organizations through enhanced use of technology.

Conducting Asset Criticality Assessment for Better Maintenance Strategy and Techniques

Conducting an asset criticality assessment (ACA) is the first step in maintaining the assets properly. This article addresses the best maintenance strategy for assets by using ACA techniques.

Harmonizing PMs

Maintenance reliability is, of course, an essential part of any successful business that wants to remain successful. It includes the three PMs: predictive, preventive and proactive maintenance.

How an Edge IoT Platform Increases Efficiency, Availability and Productivity

Within four years, more than 30 per cent of businesses and organizations will include edge computing in their cloud deployments to address bandwidth bottlenecks, reduce latency, and process data for decision support in real-time.

MaximoWorld 2022

The world's largest conference for IBM Maximo users, IBM Executives, IBM Maximo Partners and Services with Uptime Elements Reliability Framework and Asset Management System is being held Aug 8-11, 2022