Introducció
The Rotronic Hygropalm 21 is a portable thermo hygrometer designed for accurate measurement of temperature and relative humidity. This device is suitable for various applications requiring precise environmental monitoring. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your Hygropalm 21.

Figura 1: The Rotronic Hygropalm 21 Thermo Hygrometer, displaying current temperature and humidity values on its screen.
Configuració
1. Instal·lació de la bateria
The Hygropalm 21 is powered by a 9-volt battery.
- Localitzeu la tapa del compartiment de la bateria a la part posterior del dispositiu.
- Feu lliscar o desenganxeu la tapa amb cura per obrir el compartiment.
- Insert a new 9-volt battery, ensuring correct polarity (+ i - terminals).
- Torneu a col·locar la tapa del compartiment de la bateria, assegurant-vos que estigui ben tancada.
2. Engegada inicial
After battery installation, press and hold the Poder button (red button with circle and vertical line) located on the front panel to turn on the device. The display will illuminate and show current temperature and humidity readings.

Figura 2: Primer pla view of the control buttons on the Hygropalm 21, including Power, Menu, Up, Down, and Enter.
Instruccions de funcionament
1. Mesura bàsica
Upon power-on, the Hygropalm 21 automatically begins measuring and displaying relative humidity (rH) and temperature (°C or °F). The integrated sensor probe extends from the top of the device. Ensure the sensor is exposed to the environment you wish to measure.
2. Funcions del botó
- Power Button (red): Press and hold to turn the device ON or OFF.
- Botó MENÚ: Accesses the device's menu for configuration settings.
- Botó de fletxa amunt: Navigates upwards through menu options or increases values.
- Botó de fletxa avall: Navigates downwards through menu options or decreases values.
- Botó ENTER: Confirma les seleccions o accedeix a submenús.
3. Interpretació de la pantalla
The LCD screen typically shows two main readings:
- Upper Value: Relative Humidity (e.g., 32.4 %rH).
- Lower Value: Temperature (e.g., 23.1 °C).
Additional indicators may appear for battery status, measurement units, or menu navigation.

Figura 3: The Hygropalm 21 positioned in its tabletop stand, ready for continuous monitoring.
Manteniment
1. Neteja
- Netegeu el dispositiu casing amb un suau, damp tela. No utilitzeu netejadors abrasius ni dissolvents.
- Keep the sensor probe clean and free from dust or debris. Avoid touching the sensor element directly.
2. Calibració
Regular calibration is crucial for maintaining the accuracy of your Hygropalm 21. The device is supplied with a calibration certificate. Refer to the device's menu for calibration options or consult the Rotronic website for detailed calibration procedures and recommended intervals.
3. Emmagatzematge
When not in use for extended periods, remove the battery to prevent leakage. Store the device in a clean, dry environment within its specified operating temperature range.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s'encén. | Bateria morta o instal·lada incorrectament. | Comproveu la polaritat de la bateria i substituïu-la per una nova de 9 V. |
| Lectures inexactes. | Sensor dirty or device requires calibration. | Clean the sensor carefully. Perform a calibration as per instructions. |
| La pantalla està en blanc o parpelleja. | Bateria baixa o error intern. | Canvieu la bateria. Si el problema persisteix, contacteu amb el servei d'assistència. |
Especificacions
- Model: Hygropalm 21
- Número de peça: EM-08NY-P68I
- Marca: Rotronic
- Font d'alimentació: Funciona amb bateria (9 volts)
- Pes de l'article: 470 g
- Tipus de muntatge: Taula
- Valoració de temperatura superior: 60 graus Celsius (140 °F)
- Components inclosos: 1 Unit of Thermohygrometer, Instruction Manual, Calibration certificate
Garantia i Suport
For warranty information and technical support, please refer to the documentation included with your product or visit the official Rotronic weblloc.
Contacte del fabricant: Rotronic
Lloc de treball: #18, Street 1A, Czech Colony, Sanath Nagar, Hyderabad, Telangana, India - 500018.
Número de contacte: 8142350506





