4
HT 25-300
UK
INITIAL USE
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 he-
ater 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 so-
metimes possible.
MAINTAIN
To maintain efficient heating, periodically clean the glass tube of cal-
cifications 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.
WARRANTY
As a result of modern manufacturing technology, high-quality compo-
nents 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 Ser-
vice, P.O. Box 15 80; 49304 Melle, Germany.
