1. Entwodiksyon
The Tetra HT 300 is a fully submersible aquarium heater designed to maintain a stable water temperature in aquariums ranging from 300 to 450 liters. This heater features an automatic shut-off mechanism for safety and precise temperature control, ensuring optimal conditions for your aquatic inhabitants.
Please read this manual carefully before installation and operation to ensure safe and efficient use of your Tetra HT 300 heater.
2. Enstriksyon Sekirite
- Always disconnect the heater from the power supply before performing any maintenance, cleaning, or handling inside the aquarium.
- Ensure the heater is fully submerged in water before connecting it to the power supply. Never operate the heater outside of water.
- The heater is equipped with an automatic shut-off system that activates if the heater is removed from the water while powered. However, always unplug it first.
- Do not use the heater if the glass tube is cracked or damaged.
- Keep the power cord away from sharp edges and hot surfaces. Do not bend or pinch the cord.
- Aparèy sa a pa fèt pou itilize pa moun (ki gen ladan timoun) ki gen kapasite fizik, sansoryèl oswa mantal redwi, oswa ki pa gen eksperyans ak konesans, sof si yo te ba yo sipèvizyon oswa enstriksyon konsènan itilizasyon aparèy la pa yon moun ki responsab sekirite yo.
- Asire voltage indicated on the heater matches your local power supply.
- Pou itilize andedan kay la sèlman.
3. Pake kontni
Verifye ke tout konpozan yo prezan nan pake a:
- 1x Tetra HT 300 Aquarium Heater
- 2x Suction Cups for mounting
- Manyèl Enstriksyon (dokiman sa a)
4. Pwodwi Features
- Pouvwa: 300 Watts, suitable for aquariums from 300 to 450 liters.
- Kontwòl Tanperati egzak: Adjustable from 19°C to 31°C (66.2°F to 87.8°F) with a notched knob for 0.5° increments.
- Konplètman submersible: Watertight cap allows for complete immersion.
- Borosilicate Glass Tube: 2 mm thick, shock-resistant and heat-resistant.
- Otomatik fèmen: Safety system cuts power if the heater is removed from water.
- Limyè Endikatè: Illuminates when the heater is actively heating.
- Montaj sekirite: Two strong suction cups for stable placement.
- Long kòd pouvwa: 1.6 meters (approximately 5.25 feet) for flexible installation.
- Sètifikasyon: TÜV/GS and CE certified for safety and quality.
5. Enstalasyon ak Enstalasyon
- Depake aparèy chofaj la: Carefully remove the heater and all accessories from the packaging. Inspect for any visible damage.
- Tache ventouse: Securely attach the two suction cups to the heater body.
- Pozisyon aparèy chofaj la:
Place the heater vertically or diagonally in the aquarium, ensuring it is fully submerged. Choose a location with good water circulation to distribute heat evenly. Avoid placing it directly in the substrate or against the aquarium glass where it might be covered by decorations.

Image: The Tetra HT 300 heater shown installed vertically within an aquarium, demonstrating proper submersion and placement for optimal heat distribution.
- Konekte ak pouvwa: Once the heater is correctly positioned and fully submerged, plug the power cord into a suitable electrical outlet.
6. Operasyon Enstriksyon
- Mete Tanperati Dezire:
Rotate the notched knob at the top of the heater to select your desired water temperature. The temperature range is from 19°C to 31°C (66.2°F to 87.8°F). Each click represents a 0.5°C adjustment.

Imaj: Yon imaj detaye view of the temperature adjustment knob on the Tetra HT 300 heater, showing the clear markings for setting the desired temperature.
- Limyè endikatè pou kontwole: The red indicator light on the heater will illuminate when the heating element is active and warming the water. It will turn off once the set temperature is reached.
- Verifye Tanperati: Use a separate, accurate aquarium thermometer to verify the actual water temperature. Adjust the heater's setting if necessary to achieve the desired temperature. Allow several hours for the water temperature to stabilize after any adjustment.
7. Antretyen
- Netwayaj regilye: Over time, algae and mineral deposits may accumulate on the heater's surface. Disconnect the heater from power and remove it from the aquarium. Gently clean the glass tube with a soft cloth or sponge and warm water. Do not use harsh chemicals or abrasive materials.
- Enspekte pou domaj: Periodically inspect the heater for any signs of damage, such as cracks in the glass, frayed power cords, or loose connections. If any damage is found, discontinue use immediately and replace the heater.
- Verifikasyon tas aspirasyon: Ensure the suction cups remain firmly attached to the aquarium glass. Replace them if they lose their grip.
NAN. Depanaj
| Pwoblèm | Kòz posib | Solisyon |
|---|---|---|
| Heater not heating (indicator light off) |
|
|
| Water temperature too high/low |
|
|
| Heater removed from water, but still powered | Fèmen sekirite a aktive | Unplug the heater immediately. Allow it to cool down before re-submerging and plugging back in. Always unplug before handling. |
9. Espesifikasyon
| Non modèl | HT300 |
| Nimewo Modèl | 606494 |
| Mak | Tetra |
| Pouvwa | 300 Watts |
| Voltage | 230 Volts |
| Kapasite Akwaryòm | 300 - 450 Lit |
| Ranje Tanperati | 19°C - 31°C (66.2°F - 87.8°F) |
| Materyèl | Borosilicate Glass |
| Longè kòd pouvwa | 1.6 mèt |
| Sètifikasyon | TÜV/GS, CE |
10. Garanti ak sipò
The Tetra HT 300 Aquarium Heater comes with a 2-ane garanti soti nan dat acha a. Garanti sa a kouvri domaj nan materyèl ak atizan konn fè nan itilizasyon nòmal.
For warranty claims, technical support, or further assistance, please contact Tetra customer service through their official websit la oswa magazen kote ou te achte pwodwi a. Tanpri konsève prèv acha ou pou validasyon garanti a.
Nòt: Damage resulting from improper installation, misuse, neglect, or unauthorized modifications is not covered under warranty.