CAS ASSiST, the intelligent compressed air system analyst

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.

See it on your data How it works
One logged week, read in minutesPlant demand, scfm · hourly means
0 400 800 1,200 Mon Tue Wed Thu Fri Sat Sun Weekend: ~500 scfm the costliest air per cfm Day shift ~1,250 scfm
3,868load cycles in one week from a single 450 scfm unit that is short-cycling
+27%more energy per cfm at night: 23.1 vs 18.2 kW per 100 scfm on full shift
≈90,000kWh a year to recover if nights ran as efficiently as the day shift

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.

Real unit performance

Where each unit really cuts back, its delivered flow and its part-load penalty, measured while it runs. No isolation needed.

Controls and response

Units fighting, short-cycling, setpoints, and how quickly each unit answers a change in system pressure.

Pressure drop by train

Each compressor's path to the plant: the extra pressure it has to build, what causes it, and what it costs.

Supply-side health

Dryers and filters, storage on the supply side and in the plant, leaks, trips and ride-through when a unit stops.

Demand, KPIs and CAGI data

Load profile, pressure statistics and specific power, with thousands of CAGI compressor data sheets built in.

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

Entries checked against the logs; each unit's real output, pressure drop and response.

4 · Report

Charts, findings and savings in Word or PDF, ready for the customer.

From raw logs to findings you can defend

The same simulated week, read the way CAS ASSiST reads a real plant.

Where the hours go

The plant spends 43% of its hours at low flow, where each cfm costs the most.

Flow, scfm Share of hours kW/100 scfm 400–600 42.6% 23.1 600–800 9.2% 19.7 800–1,000 10.8% 17.2 1,000–1,200 8.9% 19.0 1,200–1,400 27.8% 18.2
Running isn't working

Hours in one week, per compressor. C3 ran 95 hours making no air.

Loaded Unloaded Stopped C1 700 L/U 80 h C2 480 VSD 168 h C3 450 L/U 52 h 95 h 0 84 h 168 h

Built for the field

  • One file that opens in Chrome or Edge. No install and no server.
  • Your data stays on your computer. The only exception is an optional weather lookup, and it asks first.
  • 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.

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.

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 casassist@casassist.com.

We use your details only to answer your request. We don't share or sell them.