Key facts
- Brand
- Rotronic
- Model
- HP21
- Documents
- 2
- Languages
- EN
- Last added
- 2023-10-27
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Rotronic HygroPalm HP21 Hand-Held Indicator User Guide
The HygroPalm HP21 is a handheld device for measuring relative humidity and temperature, with features like dew/frost point calculation and sensor protection. It uses a 9V alkaline battery and can be configured via a PC using ROTRONIC HW4 software. The manual covers operation, settings, calibration, maintenance, and firmware updates.
The device includes a dust filter, mini-USB service connector for PC or instrument connection, and configurable options such as data recording, simulator mode, and sensor drift compensation.
Rotronic HP21 specifications
| Power Supply | 9V alkaline battery |
|---|---|
| Measured Parameters | Relative humidity (Hygromer® IN1 capacitive sensor) and temperature (Pt100 RTD) |
| Calculated Parameters | Dew point or frost point |
| Service Connector | UART digital interface with mini-USB type connector |
Source: Rotronic HygroPalm HP21 Hand-Held Indicator User Guide
All Rotronic HP21 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What does the HP21 measure?
It measures relative humidity with a Hygromer® IN1 capacitive sensor and temperature with a Pt100 RTD.
From: Rotronic HygroPalm HP21 Hand-Held Indicator User Guide
How is the HP21 powered?
It operates with a regular 9V alkaline battery.
From: Rotronic HygroPalm HP21 Hand-Held Indicator User Guide
What is the temperature range for the HP21?
The HP21 operates within the temperature range of -10 to 60°C (14 to 140 °F).
How is the HP21 powered?
The instrument operates with a regular 9V alkaline battery.