pH-controlled Ritmo®05 pH dosing pumps have the same constructive characteristics and advantages of a Ritmo®05 dosing pump. They are equipped in full PTFE design for all fluid-wetted components, have positively controlled valves and a pulsation-poor discharge process.
The fuzzy controller is already integrated in the pump control. The installation of a separate control unit is not required.
The pH sensor is connected directly to the dosing pump.
In this version, the R05-pH is a coordinated system solution consisting of pH measurement, dosing of basic and / or acidic fluids and pH control. This saves space, installation costs and investment costs.
The full-PTFE equipment allows the dosing of all conceivable aggressive, acidic or basic fluids that are used for the respective pH-dependent process.
The high-resolution stepper motor technology enables very precise and even dosing processes in the pH-dependent process without overshooting the setpoint pH value due to excessive single-stroke dosing.
The controller integrated in the dosing pump is designed as a self-learning fuzzy controller to meet the complex requirements of pH control. An additional regulator is no longer required.
For pH-controlled use, the dosing pump is set to "external" mode and the pH sensor is connected directly to the front of the pump.
The user can manually enter the desired pH value on the display of the pump. The measured actual pH triggers the replenishment of the appropriate acidic or basic fluid.
The dosing process is carried out with the slow and low pulsation ejection process, typical for R05 dosing pumps. pH-dependent reactions can therefore be controlled extremely precisely and without serious control amplitudes (overshoots) of the actual pH value.
In an extended version, the temperature compensation is carried out automatically by permanently recording the process temperature via the temperature sensor integrated in the pH probe.
If 2 pH-controllable metering pumps are connected in this way, the pH control of a process from the acidic as well as from the alkaline side is possible. This requires no additional regulator, no second pH sensor and no second R05 pH controller board in the second metering pump. It is sufficient to connect both metering pumps via an analogue output to metering pump 1 and an analogue input socket to metering pump 2.
Dosing pump 1 with integrated fuzzy controller detects the actual pH value and regulates it to the setpoint pH value by starting dosing pump 1 or 2 for dosing the acidic or basic fluid.
Additional technical complex and expensive control loops or external controls are not required.
Different diaphragm designs, flameproof versions up to 10 bar and the integration of a temperature detection are possible depending on the application.
In individual cases, we clarify the selection of the respective pH sensor or the suitability of existing pH sensors and their adaptation to the R05 pH for you. Please contact us in individual cases.
The housing of the regulator is optionally available as a desktop device available in the laboratory or with a wall bracket in the technical center or in an industrial application.