Acceptable accuracy spec of an hourmeter.

  • Thread starter Thread starter Averagesupernova
  • Start date Start date
  • Tags Tags
    Accuracy
Click For Summary
SUMMARY

The discussion centers on the acceptable accuracy specifications for hourmeters used in machinery, particularly those accumulating a few thousand hours annually. A .2% accuracy translates to a potential deviation of +/-2 hours over 1000 hours, which some participants consider acceptable for maintenance purposes. Industry standards for hourmeter accuracy range from 20 parts per million (ppm) to .02%. Ultimately, the acceptability of accuracy is subjective and varies based on the intended use of the hourmeter.

PREREQUISITES
  • Understanding of hourmeter specifications and accuracy metrics
  • Familiarity with maintenance scheduling and its impact on machinery
  • Knowledge of industry standards for measurement devices
  • Basic concepts of machine operation and usage hours
NEXT STEPS
  • Research industry standards for hourmeter accuracy and specifications
  • Explore the implications of accuracy on maintenance schedules
  • Investigate the differences between various hourmeter technologies
  • Learn about the impact of measurement deviations on operational efficiency
USEFUL FOR

Engineers, maintenance managers, and equipment manufacturers who need to evaluate hourmeter specifications for machinery and ensure optimal maintenance practices.

Averagesupernova
Science Advisor
Gold Member
Messages
4,896
Reaction score
1,556
So, as the title says...
-
What is an acceptable spec? We're not talking in seconds per year or anything like that. Does anyone know a rough industry standard?
-
This hourmeter will be designed into a machine that will accumulate a couple thousand hours a year max. A .2% accuracy will be +/-2 hours on an accumulation of 1000 hours. Would you think this is acceptable? It sounds horrible at first because if the hourmeter were to run for a year (8736 hours) it would come up short or long by 17.5 hours. But when it comes to machine maintenence and things of this nature, I don't see a problem. Opinions are welcome.
-
Edit: After a bit of googling I find hourmeter specs anywhere between 20 ppm to .02%.
 
Last edited:
Engineering news on Phys.org
It seems that you answered your own question.

Acceptable is always in the eye of the beholder. If I was doing for preventative maintenance purposes, I would think 10% is acceptable.
 

Similar threads

Engineering I’m having second thoughts about my job position. How can I proceed with it?
  • · Replies 13 ·
Replies
13
Views
6K
Math What are the challenges faced by disillusioned math majors in finding a job?
  • · Replies 127 ·
5
Replies
127
Views
23K
Engineering Engineering Physics: 1 year left
  • · Replies 1 ·
Replies
1
Views
3K
April Fool's Physics Papers 2026
  • · Replies 3 ·
Replies
3
Views
739
Current and Future AI Threats to Humanity and the Human Response
  • · Replies 10 ·
Replies
10
Views
5K
Help with orbital mechanics for an unusual alien planet
  • · Replies 44 ·
2
Replies
44
Views
15K
Meet jtbell: Meet a Mentor Series Interview
  • · Replies 12 ·
Replies
12
Views
7K
At a crossroads (drop out? chase a dream? time out?)
  • · Replies 13 ·
Replies
13
Views
5K
PF Fan Fiction: Mathematicians in Love
  • · Replies 2 ·
Replies
2
Views
4K
Humanure and the Human Nutrient Cycle
  • · Replies 14 ·
Replies
14
Views
7K