Compressor Discharge Temperature Tracker
Log discharge air temperature readings, see the wear trend and get a projected date when the 110 °C limit will be reached.
Readings stay in your browser (localStorage) — nothing is uploaded.
Straight-line (least-squares) extrapolation of your logged readings to the 110 °C alarm threshold (warning at 100 °C). A low R² means the trend is noisy — log more readings before trusting the projection.
Field notes from maintenance practice
The diagnostic split is simple and worth memorising: rising discharge temp with normal oil pressure points to the oil cooler (fouled cores, blocked airflow) or thermal valve; rising temp with falling oil pressure points to the oil itself or its filter. Compressor oil life roughly halves for every 10 °C of average discharge temperature above ~80 °C, so this trend also sets your oil-change economics. The default action limit of 110 °C comes from rotary screw practice: most machines alarm near 110 °C and trip at 115–120 °C because oil oxidises rapidly and varnish forms beyond that range; adjust it if your OEM or procedure specifies otherwise.
Linear extrapolation is honest only when the R² is decent (≥ 0.7) and degradation is steady. Discharge temperature integrates several slow failures at once — cooler fouling, oil degradation, thermostatic valve drift, ambient rise — so the trend tells you to intervene, and a quick component check tells you where. If the last reading jumps far off the line, re-measure before believing it — measurement technique drifts too.
Sources & references
- Atlas Copco / Ingersoll Rand compressed air manuals — discharge temperature limits
- ISO 8573 — compressed air quality (temperature/oil carryover relationship)
Trend screening only — confirm with a proper inspection before running equipment to a projected limit.
Compressor Discharge Temperature Tracker for maintenance and reliability teams: Log discharge air temperature readings, see the wear trend and get a projected date when the 110 °C limit will be reached. Free, private (everything runs in your browser) and ready for daily plant use.
About Compressor Discharge Temperature Tracker
This tracker is a remaining-useful-life (RUL) estimator for discharge air temperature. Log a dated reading whenever you measure; the tool fits a least-squares straight line through your history and projects when it will cross the 110 °C action limit (warning at 100 °C) — turning scattered measurements into a forecast date you can plan parts and downtime around.
How to use Compressor Discharge Temperature Tracker
- 1Enter each dated measurement as you take it — readings persist in your browser between visits.
- 2Adjust the alarm (and warning) threshold to your OEM or procedure limit if it differs from the default.
- 3Read the fitted trend, R², days-to-alarm and the projected date — then plan parts and downtime around that date.
Why use Compressor Discharge Temperature Tracker?
- ✓Log discharge air temperature readings, see the wear trend and get a projected date when the 110 °C limit will be reached — computed instantly with the standard formula
- ✓100% free and unlimited, with no sign-up, login or paywall
- ✓Runs entirely in your browser — readings and asset data never leave your device
- ✓Niche-specific defaults and thresholds for discharge air temperature, traceable to the cited standards
Frequently asked questions
What limit should trigger action for discharge air temperature?+
The widely used limit is 110 °C (rotary screw practice: most machines alarm near 110 °C and trip at 115–120 °C because oil oxidises rapidly and varnish forms beyond that range). Set a warning at 100 °C so parts and labour are ready before the alarm. Your OEM manual or internal procedure overrides the generic figure.
Discharge temperature climbs 5 °C every summer — fault or physics?+
Physics, if it returns in autumn: a screw compressor's discharge tracks intake temperature roughly 1:1 plus its compression heat. Fix the room, not the machine — ducted cool intake air, clean cooler cores before summer, adequate ventilation (a compressor room needs airflow for its full motor kW of heat). If the summer rise grows year on year, the cooler is progressively fouling: that's your trend signal.
How many readings before the projection is trustworthy?+
At least 4–6 spread over a meaningful fraction of the asset's life, with a fit R² of about 0.7 or better. Two points always make a perfect line — that is curve fitting, not condition monitoring. Keep measurement conditions (load, temperature, location) consistent.
Is straight-line extrapolation valid for wear?+
It is the standard first approximation for steady-state degradation, and it is deliberately conservative to act on. Many failure modes accelerate near the end (bathtub curve), so treat the projected date as the latest acceptable intervention date, not a promise.
Where is my logged data stored?+
Entirely in your browser's localStorage on this device — nothing is uploaded to any server. Export or note critical values elsewhere if you need a permanent maintenance record shared across a team.
Embed Compressor Discharge Temperature Tracker on your website
Want Compressor Discharge Temperature Trackeron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/compressor-discharge-temp-tracker" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Compressor Discharge Temperature Tracker — ToolJolt" loading="lazy"></iframe>Related Industrial tools
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