WEIPRO PH CO2 Controller For Planted Aquariums
Key Facts
- Includes control unit, pH electrode, calibration solution, and electrode suction clips.
- Constant monitoring of aquarium pH.
- Automatic control of your CO2 dosing.
- Removes the guess work out of the time your CO2 should be on.
- Eliminates the possibility of overdosing your aquarium with CO2.
- Suitable for 230v-240v AC.
- Accuracy: +/- 0.01pH
Description
The pH Controller constantly checks the pH of your aquarium water, so that when the pH increases, it switches on the plug, which your solenoid regulator is plugged into. That turns on the flow of CO2 which lowers the pH of the water. When the pH reaches your target level, it turns the solenoid off.
A pH Controller will also ensure that you don't 'overdose' your aquarium with CO2, either by using a timer plug an accidentally setting it on for too long, or 'end of tank dump'. It also means you only dose CO2 when it's needed, and therefore use less CO2 than you might otherwise. A pH Controller will therefore eventually pay for itself in saved CO2 refills.
Package Contents
- pH Controller Unit
- pH 7.0 Buffer Solution
- Electrode
Instructions
- Connect the pH electrode to pH terminal.
- Connect your CO2 solenoid regulator (not included) to the controller plug.
- Connect the AC power (230V~50/60Hz).
- Slide switch to 'SET'.
- Using the plastic screwdriver provided, adjust the "SET" knob until it reads the pH you want your aquarium to maintain. Most freshwater tropical plants like a pH of 6.5 - 6.8.
- Slide switch to 'PH'.
- Pour pH 7 buffer solution into the electrode receptacle so it is half-full.
- Insert the pH electrode into the buffer receptacle.
- Adjust the "CAL/PH7" knob with the plastic screwdriver until the display reads "7.00". The device is now calibrated.
- Put the pH electrode in the aquarium water, ensuring cap of electrode is above the water level.
- The controller will switch on the CO2 when the pH climbs ~0.1 above your desired pH. It will remain switched on until the pH drops ~0.1 below your desired pH.
- You may wish to check the pH7 calibration every couple of months to ensure accurate operation.
- Click here to read the full WEIPRO pH Controller setup guide
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Reply from CO2 Supermarket
We're sorry to read your review, Karen, but what you have said is incorrect and we wish to clarify for others who read this. The idea with the controller (and all pH controllers) is you set a target pH, for example 6.8, and the controller will activate the plug (for the CO2 solenoid) when the pH rises slightly above target, e.g. 6.9 and will remain switched on until the pH drops slightly below target, e.g. 6.7. In effect the controller maintains a range of 6.7 - 6.9, but most of the time the pH will be close to the target of 6.8.
This is done to reduce cycling, so that the controller / CO2 is on for a solid duration and isn't constantly switching on and off in an attempt to maintain exactly 6.8, otherwise one minute it will be on, the next it will be off, and so on, which is not desirable. Maintaining a range like this is a deliberate and desirable design feature, not a negative aspect of the controller and you may not have understood the reason it does this. In addition, maintaining this 0.2 pH range is a miniscule amount and saying this is a "HUUUUGGGEE" pH range that will cause algae problems is simply incorrect and misleading.
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Control Unit
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Universal Plug for Solenoid
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