HPLC System Booking System (with Billing)
Book and schedule a shared HPLC system — user, date, start/end and project — with live utilisation hours, for a charge-back core facility. Offline, no sign-up.
A clash-aware booking log for a shared HPLC system. Each booking records the user, date, start and end time and a project code; the summary totals booked hours and counts distinct users so a charge-back core facility can see utilisation and support per-hour recharge to grants. Bookings live in your browser and export to CSV.
Enter start and end times to get booked hours automatically. Before adding, scan existing rows for the same date to avoid double-booking. Export to CSV for billing, utilisation reports or a printed sign-up sheet.
Indicative planning tool for research operations. Figures are estimates — verify lot data, expiry, calibration and budgets against the original certificates, vendor documentation and your institution's policies.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Free HPLC system booking and scheduling system for a charge-back core facility: log slots, total utilisation hours and estimate recharge, export to CSV — offline.
About HPLC System Booking System (with Billing)
A free, offline booking system for a shared HPLC system, built for analytical-chemistry users in a charge-back core facility. A clash-aware booking log for a shared HPLC system. Each booking records the user, date, start and end time and a project code; the summary totals booked hours and counts distinct users so a charge-back core facility can see utilisation and support per-hour recharge to grants. Bookings live in your browser and export to CSV.
How to use HPLC System Booking System (with Billing)
- 1Add a booking with the user/group, the date, and the start and end time.
- 2Add a project or grant code so usage can be charged back, then save — the summary updates booked hours instantly.
- 3Before booking, glance at existing rows for the same date to avoid clashes; export to CSV for utilisation or billing reports.
Why use HPLC System Booking System (with Billing)?
- ✓Stops double-booking of the HPLC system: every slot is one row with a user, date and time, so the next person can see what's taken.
- ✓Automatically totals booked hours and distinct users, and estimates recharge at $40/hour — the utilisation numbers a charge-back core facility reports on.
- ✓No SaaS, no logins, no monthly fee. Bookings stay in the browser and export to CSV for billing, reporting or a printed schedule.
Frequently asked questions
How does this HPLC system booking system calculate utilisation?+
For each booking you enter a start and end time; the tool computes the duration and sums it across all bookings to give total booked hours. It also counts distinct users and multiplies hours by your recharge rate ($40/h by default) to estimate billing. These are the core utilisation metrics core facilities report to funders.
Does it prevent double-booking automatically?+
It shows every existing booking sorted by date so clashes are easy to spot before you add a new slot. It is a lightweight log rather than a locking calendar, which keeps it fast and fully offline — ideal for a shared instrument where the team self-coordinates.
Can I use this for charge-back billing?+
Yes. Add a grant/project code to each booking and the summary estimates recharge from booked hours × your hourly rate. Export to CSV to feed your finance system or build an invoice.
Where are the bookings stored?+
Entirely in your browser via localStorage — no account and no server. That means the schedule loads instantly, works offline at the instrument, and keeps project codes and user names private. Export to CSV to share or archive the schedule.
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