Is PressureTrend free to use?

Yes. The core tool is currently free for everyone.

Does PressureTrend upload my pressure data or test results?

Nothing is sent to any external server for analysis. All file parsing, calculations, chart rendering, and report generation runs entirely in your web browser. Beyond loading the page itself, only aggregated usage analytics are collected—no pressure data, test results, or file contents are ever transmitted. No data upload: Your pressure logs and results never leave your browser. Works well offline: While the page stays open, import, analysis, and PDF export continue without an internet connection. Session persistence: Your work is saved locally. You can refresh the page and continue where you left off. You control your exports: Only you decide when to generate a PDF report or save a project file.

Can I use PressureTrend offline?

While the page stays open, import, analysis, and PDF export continue without an internet connection.

Do I need to install any software?

No installation is required. PressureTrend runs directly in your web browser after you export CSV or Excel from your logger software.

Is my work saved if I refresh the page?

Your work is saved locally. You can refresh the page and continue where you left off.

Which file formats are supported?

Keller: LOGGER_5, LEO Record, and PressureSuite exports (CSV · Excel). Auto-detects native Keller layouts on CSV and Excel. Import setup picks channel and time source when several are present. Crystal nVision: Standard nVision CSV and Excel exports (CSV · Excel). Pressure time series with run metadata on CSV and Excel. Import setup confirms gauge serial and calibration when the file lists several. Wonderware: Trend / historian CSV exports (CSV). Trend exports with timestamp and tag columns. Pressure columns are discovered automatically; import setup confirms the right ones when several are present. Other tabular exports: Flexible column fallback (CSV · Excel). When the file is not a known native layout, detection tries flexible time and pressure columns so many logger exports still import without a dedicated parser.

My file is not recognised automatically. What should I do?

Confirm time calibration and test start before analysis. If your file contains multiple time sources, gauges, or pressure channels, pick the correct ones—standard Keller and nVision exports rarely need extra choices. If your logger export is not recognised well, email contact@pressuretrend.com with your device and export format—we improve parser support for CSV and Excel from real user files without accessing your data.

Can I import multiple files at the same time?

Yes. You can queue and work with up to 10 files per session.

Which Keller and Crystal devices are supported?

Keller: LOGGER_5, LEO Record, and PressureSuite. Pressure time series with run metadata on CSV and Excel. Import setup confirms gauge serial and calibration when the file lists several. When the file is not a known native layout, detection tries flexible time and pressure columns so many logger exports still import without a dedicated parser.

How does the pass/fail logic work?

Passed or Not passed combines pressure change against your criteria %, optional minimum test pressure, and delta trend (on falling holds and stable holds with a net loss). Falling hold: pass when drop ≤ criteria %. Rising hold: pass when rise ≤ criteria %. Stable hold: pass when |change| ≤ criteria %. If allow below test pressure is off, pressure anywhere in the window must stay at or above the nominal test pressure. That check is separate from drop % or rise %. Start-to-end change vs criteria %; minimum test pressure can fail independently. Direction ↓ / ↑ / — when |change| is below 0.05% of start pressure. Delta colours show flattening vs steepening; red deltas can fail ↓ holds and — holds with net loss.

Can I adjust the pass/fail criteria?

Set start and end of your hold test on the chart; set nominal test pressure, criteria %, and 2–8 delta checkpoints in the test controls beside it. Optional minimum floor pressure can fail the test independently.

How do I export my results?

Review pass/fail, start-to-end change, delta trends, and temperature insight in the workspace. Export a PDF via your browser print dialog or save a JSON project file to continue later.

What are the coloured deltas in the results?

Green: this step’s |Δ| is not steeper than the previous step (flattening or stable rate of change). Red: the interval change grew compared with the step before. On falling holds—and stable holds with a net pressure loss—a red delta can fail the test. On rising holds, red deltas are advisory only (Δ advisory).

How is drop % calculated on a hold test?

Passed or Not passed combines pressure change against your criteria %, optional minimum test pressure, and delta trend (on falling holds and stable holds with a net loss). Falling hold: pass when drop ≤ criteria %. Rising hold: pass when rise ≤ criteria %. Stable hold: pass when |change| ≤ criteria %. ↑ next to the result means net pressure rose during the window; ↓ means it fell; — means the change was very small. A rising hold is common when the system warms. The app shows rise %, not a misleading negative drop %. Check temperature and your band limits before signing off a warming hold.

Does API 16C allow 5% pressure variation during a hold?

API 16C hydrostatic hold acceptance commonly requires no visible external leakage and that pressure during the hold does not vary by more than 5% or 500 psi, whichever is less. Your job is governed by the approved procedure and the API edition cited on your test pack—verify exact wording there. In PressureTrend, set criteria % in the test controls (for example 5%) and evaluate drop or rise over your hold window; when the dual limit applies, also check the absolute 500 psi cap against start pressure before sign-off.

Is PressureTrend a replacement for CrystalControl or PressureSuite?

No. Those tools export the data from your logger. PressureTrend analyses the export, helps you read pass/fail, and builds a hold-test report.

Where is my data processed?

All file parsing, calculations, chart rendering, and report generation runs entirely in your web browser. Beyond loading the page itself, only aggregated usage analytics are collected—no pressure data, test results, or file contents are ever transmitted.

Who can see my pressure test data?

Nothing is sent to any external server for analysis. Your pressure logs and results never leave your browser.

Is PressureTrend suitable for offshore use?

While the page stays open, import, analysis, and PDF export continue without an internet connection. Local browser processing suits restricted connectivity and sensitive environments.

My logger export doesn't work well. Can you help?

We actively improve support for different logger formats. Reach out with your device and export format—we improve parsers from real user files without accessing your data.

Where can I find more help?

Start-to-end change vs criteria %; minimum test pressure can fail independently. Pass/fail, hold direction (↑ ↓ —), delta colours, temperature, and test-pressure checks—the same rules as the result card. See the full guide for hold direction, delta colours, temperature, and test-pressure checks. Logger workflow guides live on the Guides page and in Resources below.

Keller LOGGER_5 & LEO Record Hold-Test Workflow

How to export from Keller LOGGER_5, LEO Record, or PressureSuite, then analyse hold tests in PressureTrend—auto-detected, browser-only.

7 min readTechnician · Engineer

Who this is for

Technicians using Keller field loggers (LEO Record, LOGGER_5, PressureSuite exports).
Contractors who receive Keller CSV/Excel and need hold-test drop % without a Windows-only reporting tool.

What you need

Keller logger export as CSV or Excel from PressureSuite Desktop or LOGGER_5 software.
A modern web browser.

How to export from Keller loggers

Supported devices: LOGGER_5, LEO Record, and PressureSuite. Use PressureSuite Desktop or LOGGER_5 software on your computer to export finished hold-test records.

Recommended export settings

Connect your Keller logger to your computer.
Use the official Keller software to export your data.
Preferred format: CSV (best compatibility). Excel (.xlsx, .xlsm) is also fully supported.
Include timestamp and pressure channels when possible; add temperature if available.

What PressureTrend does automatically

Detects native Keller layouts
Offers a ±12 hour correction during import setup if logger time was logged on a 12-hour clock
Lets you choose the correct time source or pressure channel when several are present

Tips for best results

Export with as much metadata as possible.
If your export contains multiple tests or channels, you can select the correct one during import setup.
Long hold tests with many data points are fully supported.

Analyse in PressureTrend

Drop the file on PressureTrend—Keller LEO and LOGGER_5 layouts are recognised automatically.
In Import setup, confirm logger local time vs UTC (LEO), channel, and gauge serial when prompted.
Set the test window on the chart; criteria % and checkpoints in the test controls.
Review pass/fail and export PDF via the in-app print flow.

Multiple pressure channels

When the export includes P1, P2, … columns, all traces can appear on the chart. You choose which channel drives drop % and pass/fail during import setup.

Privacy

Files are parsed locally in your browser. No upload to PressureTrend servers in v1.

Related guides

Open PressureTrend

← Resources on the landing page