This is a user guide of HygrPalm HP21 hand-held indicator. It provides information about the product's function, operation and maintenance.
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.
| 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 |
It measures relative humidity with a Hygromer® IN1 capacitive sensor and temperature with a Pt100 RTD.
It operates with a regular 9V alkaline battery.
Yes, using ROTRONIC HW4 software, it can be configured to calculate either dew point or frost point.
It is a UART digital interface with mini-USB connector for connecting to a PC or another compatible instrument.