Measure the supply.
Prove the savings.
CAS ASSiST turns compressor, controller and logger data into a customer-ready assessment of the supply side: compressors, controls, dryers, filters and storage. Every finding points back to the logged minutes that prove it.
Charts and figures: one simulated week of a three-compressor plant. No customer data. The energy figure assumes the overnight band ran at the day shift's kW per 100 scfm.
What CAS ASSiST finds
From the logs you already collect: what each compressor really delivers, where the energy goes, and which entries on the data sheet don't match what the equipment actually does.
Every entry checked
Setpoints, nameplate amps, ratings and storage are tested against the logs. Wrong or guessed entries are flagged and the measured values are used. A value marked as an estimate is kept, but never steers the results.
Real unit performance
Where each unit really cuts back, its real full load (modulating and variable-speed units too), its delivered flow and its part-load penalty, measured while it runs. No isolation needed. It also flags capacity controls that aren't working as they should.
Controls and response
Which units should run at each demand, within each motor's start limits. Units fighting, short-cycling, control gaps, and setpoints checked on the pressure each controller really reads. How quickly each unit answers a change in pressure.
Pressure to the far end
Each compressor's path out to the far end of the system: the extra pressure it has to build, whether the piping or a restriction causes it, and what it costs. No pipe sizes needed.
Supply-side health
Aftercoolers, dryers and filters, storage on the supply side and in the plant, leaks and purge, trips, ride-through when a unit stops, and capacity at peak. And the water in the air: what compressing it costs and how much condensate each dryer and drain must handle.
Demand, KPIs and CAGI data
Load profile, pressure statistics and specific power, with thousands of CAGI compressor data sheets built in.
Events at the point of use
A short, fast log at a big user starting, a compressor starting or a trip: how far the pressure fell, how long it stayed below the minimum, whether the drop was local or system-wide, and what to do.
Before and after, fairly
Visits side by side: each compressor, each recommendation still open, cleared or new, and the energy at the same demand, so a slower month is not mistaken for a saving.
Every reading put to work
Package and dryer temperatures, aftercooler readings, drain losses, dew point where the air is used and remote pressures each feed a result or a cross-check. Nothing is collected just to fill a form.
How it works
Four steps from the site visit to the report.
1 · Collect
Nameplates, loggers and a field log, guided by a one-page field sheet.
2 · Import & align
Any logger CSV. Clocks are lined up and gaps are handled openly.
3 · Analyze
The system mapped step by step, each step checked against the last: every entry, each unit's real output, pressure drop and response.
4 · Report
Charts, findings and savings in Word or PDF, ready for the customer.
Everything in one place
From the first site visit to the issued report.
Sites and field work
- A setup guide on each site that says what is still missing and takes you there.
- One equipment register: compressors (centrifugal, VSD, engine and turbine too), aftercoolers, dryers, filters, drains, storage, piping, flow controllers and meters.
- 4,372 CAGI data sheets built in, your team's own library, and data sheet PDFs read into the form.
- Values typed in whatever unit the nameplate gives.
- Dated field work: setpoints, spot readings, maintenance and history.
- The User Guide and Field Sheet built in, a click away.
Logs
- Any logger or controller CSV; each logger's layout is remembered.
- Clocks lined up, gaps and sensor dropouts handled openly.
- Notes written in the logger file become the field log: tests, trips and production changes.
- A data quality check for every system before the analysis.
- Weather for the logging period, fetched for you.
Analysis
- The system mapped step by step, each step checked against the last.
- Each unit's real full load and the air it delivers in service.
- The best order to run the units at each demand, within each motor's start limits.
- Pressure to the far end: the piping or a restriction, and what it costs.
- Aftercoolers, dryers, filters, storage, leaks and purge, centrifugal blow-off.
- What controls each unit: its own controller, a remote transducer or a sequencer.
- Event tests from fast logs: local or system-wide drops, and the storage to ride them out.
Reports
- Executive summary, top recommendations and the logged evidence behind each one.
- Savings that act on the same waste are counted once, never twice.
- Logic-based pressure savings for each compressor, from how it is built and controlled, not a rule of thumb.
- Branded with your logo; print to PDF or export to Word with every chart.
- A supply-side P&ID, drawn for you from the register.
- Comparison reports: visits side by side, at the same demand.
- Health cases with a troubleshooting checklist.
- Every issued report kept and easy to find, and a dashboard across all your sites.
From raw logs to findings you can defend
The same simulated week, read the way CAS ASSiST reads a real plant.
The plant spends 43% of its hours at low flow, where each cfm costs the most.
Hours in one week, per compressor. C3 ran 95 hours making no air.
Pages from a real report
What CAS ASSiST hands you after a week of logs: from a simulated plant built on patterns seen in real assessments.
Built for the field
- Runs on your own computer, in the field or in the office, with no internet needed for the analysis.
- Your data stays on your computer. The only thing sent out is a weather lookup: the site's location and dates.
- Each site folder holds the equipment register, logs, assessments and reports together.
- US or metric units, and reports branded with your company's name and logo.
- Large sites run in the background with a progress bar: a month of 32 compressors on a laptop.
For auditors, service providers and plant engineers
Anyone who logs compressed air systems and has to show the customer what the data proves, and what it is worth.
Built from living it
CAS ASSiST grew out of more than 40 years inside compressed air: in the field, on the support line, in the engineering shop and on the audit team.
What's behind it
- Hands-on service and diagnosis of compressors, from small rotary screws to 6,000 hp centrifugals.
- System assessments, energy audits and leak studies, and an audit program run on four continents.
- On-board and system controls designed, tuned and commissioned, including custom panels for hazardous locations.
- Multi-unit systems orchestrated to run the right units at each demand, for the least energy with stable, reliable supply.
- Diagnostic and prognostic programs: vibration, fluid analysis and asset health.
- Connected monitoring (IoT) systems for compressors and whole air systems.
- Training for technicians and engineers in compressor and system control tuning.
Why CAS ASSiST exists
The tools available today still leave too much to manual work and guesswork, in the analysis and in the report. We needed something better, so we built it.
What it checks comes from years of seeing what goes wrong on real systems: nameplate entries that don't match the equipment, units fighting each other, and controls that look right on paper but not in the logs.
Questions
What auditors and plant engineers ask before a demo.
Where does my data go?
It stays on your computer. CAS ASSiST runs there, not in the cloud. Your registers, logs and reports are saved in site folders on your own drive or OneDrive. The only thing sent out is a weather lookup: the site's location and the logging dates.
What data does it need?
For a full assessment: logged amps or kW for each running compressor, at least one logged system pressure, each unit's rating (the built-in CAGI data sheets often fill it in), and the electricity cost and operating hours. Discharge pressures, a pressure at the far end of the system and receiver volumes make it better. When something is missing, it tells you which results are reduced and why.
Which loggers and controllers does it read?
Any logger or controller export saved as a CSV file. It suggests how the columns map to your equipment, you confirm, and it remembers that logger's layout so the next file imports on its own.
Can I use it without logs?
Yes. A spot-check assessment runs from the equipment register and your field readings alone. Its results rest on ratings and spot readings, and the report says so.
What does the report include?
An executive summary, the top recommendations with the logged evidence behind each one, savings counted once (never twice for the same waste), and the key figures. It covers the content ISO 11011 asks an assessment report to include: goals and scope, the energy baseline, and how the figures were made. It carries your logo and prints to PDF or exports to Word.
Which compressors and equipment does it cover?
Rotary screw, reciprocating and centrifugal compressors, fixed and variable speed, electric, engine and turbine driven, plus aftercoolers, dryers, filters, drains, storage, piping, flow controllers and meters.
Does it cover the demand side?
It focuses on the supply side. From the logs it also works out the plant's demand, leaks and the pressure that reaches the far end of the system. It does not survey individual end uses.
US or metric?
Both. Switch at any time; only the display changes.
How is it priced?
We are setting pricing with our first users. Ask about it when you request a demo.
See it on your data
Tell us a little about your work. We'll set up a demo, on sample data or on logs from one of your own sites.
Prefer email? Write to [email protected].
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