HT 50 - Thermostat TETRA - Free user manual and instructions

Product type	Heater thermostat for aquarium
Brand	Tetra
Model	HT 50
Adjustable temperature	Yes, via notched button (accuracy ±0.25 °C)
Operation indicator	Indicator light on during heating
Minimum immersion level	Marked "minimum water level" on the device
Mounting	Suction cups provided (except for AquaArt aquarium)
Power supply	Mains connection (230 V / 50 Hz)
Recommended electrical protection	Residual current device (RCD) 30 mA max
Maintenance and cleaning	Water and vinegar, no detergents or solvents
Safety precautions	Disconnect before any intervention; do not use if cord is damaged
Warranty period	2 years from date of purchase
After-sales service	Tetra France, N°Azur 0 810 121 821 (local call rate)
Manufacturer	Tetra, D-49324 Melle, Germany

Frequently Asked Questions - HT 50 TETRA

How to set the temperature on the Tetra HT 50?

Use the notched adjustment button (1) to adjust the desired temperature (2). Once set, the thermostat automatically maintains the temperature with an accuracy of ±0.25 °C.

At what temperature difference does the device turn on or off?

The device turns on or off as soon as the temperature deviates by ±0.25 °C from the set value.

How to install the Tetra HT 50 heater in the aquarium?

Attach the suction cups to the heater, then place it vertically in the aquarium, preferably in a water circulation area (near a filter or pump). Ensure it is immersed at least to the "minimum water level".

What to do if the indicator light does not come on?

Check that the heater is plugged in and immersed above the minimum level. If the light does not come on, the thermostat may have reached the desired temperature. If it does not heat despite a difference, unplug and contact customer service.

How to clean the Tetra HT 50?

Unplug the device and let it cool for 15 minutes. Clean the glass tube with water and vinegar only, no detergents, solvents, or acids.

What safety precautions should I follow?

Only plug in the heater when immersed above the minimum level. Disconnect all electrical devices before putting your hand in the water. Do not use if the cord is damaged. The device must be supplied via a 30 mA residual current device.

What to do if the glass tube breaks?

If the glass tube is broken, the warranty does not cover this damage. The device must no longer be used. Contact your dealer or Tetra customer service for a replacement.

How to know if the heater is working correctly?

The indicator light comes on when the device is heating. You can also check the water temperature with an aquarium thermometer; minor variations are normal.

What is the warranty on the Tetra HT 50?

The warranty is 2 years from the date of purchase. It covers material and manufacturing defects. It is excluded in case of improper use or breakage of the glass tube.

Can I use the heater out of water?

No. The heater should only be connected when immersed at least to the "minimum water level". Never use it out of water.

USER MANUAL HT 50 TETRA

Metallic kettle with brand logo (no readable text or symbols beyond branding)

For more information: www.tetra.net

Instructions for use

Congratulations on the purchase of your Tetra heater thermostat. This TÜV tested heater-thermostat is manufactured from the highest quality materials and uses the latest aquarium heater technology. As a result you can be sure of its accuracy, reliability and safety. Add to this its simplicity of use and you have a heater thermostat that you can simply "set and forget", leaving it to maintain the desired water temperature and leaving you to enjoy your fishkeeping.

Please observe the following instructions when installing and using your Tetra heater thermostat:

1. Fasten the enclosed suction cups to the points provided on the HT heater thermostat (see fig.) Note: Suction cups and holders for heaters and/or filters are not supplied with the AquaArt aquarium.

2. Set the desired temperature (2) using the adjusting knob (1).

3. Fasten the Tetra thermostat heater in the aquarium using the suction cups (see fig.). To ensure the best temperature regulation, choose a place where the water is continuously circulating (i.e. near a filter or pump). Please ensure that the heater is always immersed up to the minimum water level mark.

4. After installing the heater, insert the plug into the mains socket. The thermostat takes several minutes to register the water temperature. The device switches on or off as soon as the temperature deviates from the desired temperature setting by ± 0.25 degrees Celsius. In this way the Tetra HT thermostat heater automatically keeps the water at the desired temperature. The control lamp illuminates whenever the heater is on. Minor deviations between the adjusted temperature of the heater and the indication of an aquarium thermometer are sometimes possible.

Maintenance

To maintain efficient heating, periodically clean the glass tube of calcifications by first unplugging the heater, removing it after it has been allowed to cool for 15 minutes, and then cleaning it only with water and vinegar. Do not use detergents, solvents or acids.

D-49324 Melle, Germany

www.tetra.net

Safety

regulations

Important

The HT heater thermostat should only be connected to the mains once it has been immersed up to the minimum water level mark. Before putting your hand into the water for any reason, disconnect the heater thermostat and all other electrical devices from the mains! The heater thermostat should be left for 15 minutes after disconnecting from the mains before removal, or before reducing the water level to below the minimum water level mark. The HT heater thermostat should only be used for indoor aquaria.

The connection lead cannot be replaced. If the lead is damaged, the device should be scrapped. Ensure that the water level does not drop below the minimum water level mark. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

This appliance must be supplied through a residual current device (RCD) having a rated residual operating current not exceeding 30mA.

2 year guarantee

As a result of modern manufacturing technology, high-quality components and stringent quality control your Tetra HT heater thermostat is guaranteed for 2 years from the date of purchase. The guarantee covers all major defects of the device that are proven to be caused by material or manufacturing defects. The device will be repaired free of charge during this period. Where the device cannot be repaired a replacement will be provided.

The guarantee does not cover improper use, breakage of the glass tubes and damage caused by the device.

This guarantee does not affect your statutory rights.

In the case of a complaint, please contact your specialist dealer directly, presenting your proof of purchase, or contact Tetra GmbH, Customer Service, P.O. Box 15 80; 49304 Melle, Germany.

Gebrauchs- information

D-49324 Melle, Germany

www.tetra.net

D-49324 Melle, Germany

www.tetra.net