Key facts
- Brand
- HP
- Model
- 30b
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-04
Start here
HP 30b Business Professional Quick Start Guide
This Quick Start Guide introduces the HP 30b Business Professional financial calculator, describing its keys, display, and basic operation modes. It provides step‑by‑step instructions for using the shift key, input key, equals key, and other essential functions.
The guide also covers customization options, menu navigation, battery replacement, warranty information, and regulatory notices, helping users get the calculator up and running quickly and safely.
HP 30b specifications
| Display | 2‑line alphanumeric scrolling |
|---|---|
| Power‑off timer | Auto off after ~5 minutes |
| Contrast adjustment | Hold O and press + or – |
Source: HP 20b Business Consultant and HP 30b Business Professional User Manual
All HP 30b documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
The shortest path to a working setup, usually only a few pages.
Questions answered in these manuals
How do I turn the calculator on and off?
Press O to turn the calculator on and press :a to turn it off.
From: HP 20b Business Consultant and HP 30b Business Professional User Manual
How can I adjust the display contrast?
Hold the O key while pressing + to increase or - to decrease contrast.
What does the shift key do?
It activates an annunciator that indicates shifted (blue‑printed) functions on the keys.