TUNZE 7077.200 Carbon Doser User Manual
- June 11, 2024
- TUNZE
Table of Contents
Instructions for Use
x7077.2088
General aspects
The CarbonDoser® is an electronic CO2 valve for targeted CO2 supply in
freshwater aquariums or lime reactors. It has an electronically controlled
valve that generates exactly one CO2 portion / CO2 bubble every 0.1 to 10
seconds and thus doses it very precisely.
Scope of
delivery
CarbonDoser® (A),
non-return valve (B),
hose adapter (C),
hoses (D),
power supply unit (E),
wrench (F).
Safety instructions for TUNZE ® power supply units
TUNZE ® power supply units have not been designed for outdoor operation. In order to prevent water damage, the power supply unit should be placed as far away from the aquarium as possible. Operation is permitted only with a residual-currentoperated circuit-breaker fitted, max. 30 mA. Do not repair a damaged mains cable – replace the unit completely. The connection to devices, such as electronic switches or speed controllers, of other makes is not permissible! Mount the power supply unit in a dry and wellventilated position only. Do not mount in the vicinity of heat sources. Storage conditions: -40°C – +70°C (-40°F – +158°F) 10-95% relative humidity Operating conditions: 0°C – 45°C (32°F – 113°F) up to 95% relative humidity, no condensation
Installation
-
Remove the original compression fitting from the TUNZE® pressure reducer 7077/3 using the enclosed wrench…
-
…and replace it with the 1/8” plug connector (included in the scope of delivery).
Caution! The threads are tiny, don’t over tighten! -
Attach the pressure reducer to the CO2 bottle according to the instructions.
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Insert the 1/8” hose into the 1/8” push-in fitting of the pressure regulator.
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Insert the other end into the CarbonDoser ® (above). Mount the CarbonDoser ® firmly on the wall / furniture.
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Insert the ¼” hose into the bottom side (outlet) of the CarbonDoser ® .
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Insert the non-return valve approx. 50 cm (20”) from the CarbonDoser ® , the arrow on the non-return valve should point in the direction of the CO2 flow. The check valve outlet is consequently connected to a reactor /diffuser.
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Connect the CarbonDoser ® to the power supply unit.
Initial operation
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Make sure the outlet pressure regulator on the CO2 cylinder is fully closed. To do this, turn the pressure adjustment screw (9a) all the way to the left.
Important! If the CO2 cylinder is opened without this safety check, the high pressure could damage the ”low pressure gauge” or affect its accuracy!
-
Slowly open the main valve (10a) on the cylinder. Observe the pressure on the manometer. Then close the valve of the CO2 bottle again and wait 15 minutes.
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If installed correctly (no leakage), the pressure noted previously should NOT drop. If the pressure drops, loosen and tighten the pressure reducer and repeat the process.
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Set the system pressure by means of the pressure adjustment screw (12a) of the system pressure gauge to around 0.5 bar. Turning the screw in increases the pressure, turning it out reduces the pressure.
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To get used to how the CarbonDoser ® works, we recommend to place the CO2 hose in a glass of water and to observe the bubble release. Hereby, you will get a feeling for the number and the size of the bubbles. This test also gives an impression of the wide range of adjustability of the device!
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To set the number of bubbles, turn the adjustment knob from 0-10. The number of bubbles can then be adjusted from approx. 10 portions / bubbles per second to 1 portion / bubble per 10 seconds.
To adjust the portion / size of the bubble, simply modify the pressure adjustment screw (15a) on the pressure reducer. The pressure will be increased lockwise and thus, also the size of a portion / bubble will be increased. A counter-clockwise modification decreases pressure and thus decreases portion / bubble size. At high pressures it can happen that several bubbles are formed per metering.
As previously mentioned, we recommend experimenting with the device before actually using it in a freshwater aquarium or calcium reactor.
Illustration of parts
List of
parts
| 7077.200| CarbonDoser®
---|---|---
1| 7077.200| CarbonDoser®
2| 7077.201| Non-return valve
3| 7077.500| Tube set
4| 3154.120| Power supply unit
The illustration shows the individual parts supplied. The list of spare parts may also contain parts which deviate from the illustrations.
Warranty
The unit manufactured by TUNZE® Aquarientechnik GmbH carries a limited
guarantee for a period of twentyfour (24) months after the date of purchase
covering all defects in material and workmanship. Within the framework of the
corresponding laws, your remedies in case of a violation of the guarantee
obligation shall be limited to returning the unit manufactured by TUNZE®
Aquarientechnik GmbH for repair or replacement at the discretion of the
manufacturer. Within the framework of the corresponding laws, the said shall
be the only remedies. Consequential damage and/or other damage shall be
excluded therefrom explicitly. Defect units shall have to be shipped to the
dealer or the manufacturer in the original packaging together with the sales
slip in a pre-paid consignment. Unpaid consignments will not be accepted by
the manufacturer.
Exclusion from guarantee shall exist also in case of damage caused by inexpert
handling (such as water damage), technical modification carried out by the
buyer or by connection to devices which have not been recommended. Subject to
technical modifications, especially those which further safety and technical
progress.
Customers in USA, please refer to seperate Limited Warranty for United States
brochure.
Disposal
(in keeping with RL2002/96/EU)
The device and the battery may not be disposed of in normal domestic waste; it
has to be disposed of in an expert manner.
Important for Europe: Devices can be disposed of through your community’s
disposal area.
TUNZE®
Aquarientechnik GmbH
Seeshaupter Straße 68
82377 Penzberg – Germany
Tel: +49 8856 2022
Fax: +49 8856 2021
info@tunze.com
www.tunze.com
References
Read User Manual Online (PDF format)
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