1. Introduction
This manual provides comprehensive instructions for the proper setup, operation, and maintenance of your TFA-Dostmann TFA 30.5045.54 Digital Thermo-Hygrometer. This device is designed to monitor indoor temperature and humidity, featuring a clear display with comfort level indications and trend arrows. It can also function as a remote sensor for compatible TFA devices.
Key features include:
- Indoor temperature and humidity display.
- Trend arrows for temperature and humidity values.
- Colored comfort zones for quick climate assessment.
- Max-Min memory function for recorded values.
- Compatibility as a remote sensor for TFA models 30.3054.10, 30.3056.10, and 30.3062.10.
2. Package Contents
Please check that all items are present and undamaged:
- TFA 30.5045.54 Digital Thermo-Hygrometer unit
Note: 2 x 1.5V AAA batteries are required for operation and are not included in the package.
3. Device Overview
Figure 1: Front view of the TFA 30.5045.54 Digital Thermo-Hygrometer. The display shows current temperature (21.7°C) and humidity (39%), along with trend indicators and comfort level zones (DRY, COM, WET). Below the display are control buttons: MIN/MAX, CH/+, and SET.
Display Elements:
- Temperature Display: Shows current indoor temperature in Celsius. Includes a trend arrow indicating rising, stable, or falling temperature.
- Humidity Display: Shows current indoor relative humidity in percentage. Includes a trend arrow indicating rising, stable, or falling humidity.
- Comfort Zones: Colored segments (DRY, COM, WET) indicate the current humidity comfort level.
- DRY: Humidity below 45%
- COM (Comfort): Humidity between 45% and 65%
- WET: Humidity above 65%
- CH (Channel) Indicator: Displays the current channel when used with remote sensors.
Control Buttons:
- MIN/MAX: Press to view minimum and maximum recorded temperature and humidity values. Press again to cycle through values. Hold to reset recorded values.
- CH/+: Used to select channels when multiple remote sensors are connected. Also used for increasing values in settings.
- SET: Used to enter settings mode or confirm selections.
4. Setup
4.1 Battery Installation
- Locate the battery compartment cover on the back of the unit.
- Remove the cover by sliding it down or lifting it off.
- Insert two (2) 1.5V AAA batteries, ensuring correct polarity (+ and -).
- Replace the battery compartment cover.
- The device will power on automatically and display current temperature and humidity.
4.2 Placement
The TFA 30.5045.54 Thermo-Hygrometer can be placed on a tabletop or mounted on a wall.
- Tabletop: Use the integrated stand on the back of the unit to place it on a flat surface.
- Wall-mounted: Use a screw (not included) to hang the unit from the designated mounting hole on the back.
For accurate readings, place the unit away from direct sunlight, heat sources, and drafts.
5. Operating Instructions
5.1 Current Readings
Upon power-on, the device immediately displays the current indoor temperature and humidity. The trend arrows next to the temperature and humidity values indicate whether the respective measurement is rising, stable, or falling over a short period.
5.2 Comfort Level Indication
The colored zones at the bottom of the display provide a quick visual reference for the indoor humidity comfort level:
- DRY (Blue): Humidity is below 45%.
- COM (Green): Humidity is between 45% and 65%, indicating a comfortable range.
- WET (Orange): Humidity is above 65%.
5.3 Minimum and Maximum Values
To view the recorded minimum and maximum temperature and humidity values:
- Press the MIN/MAX button once to display the maximum recorded values.
- Press the MIN/MAX button again to display the minimum recorded values.
- Press the MIN/MAX button a third time to return to current readings.
To reset the minimum and maximum values, press and hold the MIN/MAX button for approximately 3 seconds while the MIN or MAX values are displayed. The display will flash, indicating the values have been reset.
5.4 Remote Sensor Functionality
This unit can function as an additional remote sensor for compatible TFA devices, specifically models 30.3054.10, 30.3056.10 (for temperature and humidity), and 30.3062.10 (for temperature only). Refer to the instruction manual of your main TFA device for details on pairing and channel selection. Use the CH/+ button on this unit to select the appropriate channel if necessary.
6. Maintenance
6.1 Cleaning
Clean the device with a soft, damp cloth. Do not use abrasive cleaning agents or solvents, as these may damage the display or casing. Avoid getting moisture into the device's internal components.
6.2 Battery Replacement
When the battery indicator appears on the display, replace the batteries. Follow the steps in Section 4.1 Battery Installation. Dispose of used batteries according to local regulations.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display or faint display | Batteries are dead or incorrectly inserted. | Replace batteries with new 1.5V AAA batteries, ensuring correct polarity. |
| Inaccurate readings | Unit is placed near heat sources, direct sunlight, or drafts. | Relocate the unit to a stable indoor environment away from extreme temperature fluctuations. |
| Remote sensor not connecting | Incorrect channel selected or interference. | Ensure the main unit and this sensor are on the same channel. Check for obstructions or other electronic devices causing interference. Refer to the main unit's manual. |
8. Specifications
- Model: 30.5045.54
- Temperature Range: 0°C to +60°C (32°F to 140°F)
- Temperature Resolution: 0.1°C
- Humidity Range: 10% to 99% RH
- Power: 2 x 1.5V AAA batteries (not included)
- Dimensions: 64 x 109 x 18 mm (2.52 x 4.29 x 0.71 inches)
- Weight: 65 grams (2.29 ounces)
- Mounting Type: Tabletop or Wall-mounted
- Manufacturer: TFA Dostmann
9. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact your retailer. Keep your proof of purchase for any warranty claims.
