Key facts
- Brand
- HP
- Model
- 20b
- Documents
- 2
- Languages
- EN · ZH
- Last added
- 2012-06-04
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HP 20b Business Consultant and HP 30b Business Professional User Manual
This manual provides detailed instructions for using the HP 20b Business Consultant and HP 30b Business Professional financial calculators. It covers basic operation, menu navigation, mathematical functions, programming, and special financial calculations such as TVM, bonds, and Black‑Scholes.
Additional sections describe error messages, battery replacement, warranty information, and regulatory compliance. The guide includes keyboard maps, sample problems, and step‑by‑step procedures for common business calculations.
HP 20b 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 20b documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
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
What is the lamp warranty period?
The lamp is covered for 2 years or 2000 hours of use, whichever is shorter.