Ritmo R033

Materials Equipment

Their wide material range with PP, PVC, PVDF, PTFE and stainless steel pump heads ensures maximum chemical resistance the most versatile possible applications.

Especially in their full PTFE version, the dosing pumps are suitable for almost all aggressive fluids, acids, alkalis or solvents, for high-purity processes and metal-free applications. All fluid wetted components, i.e. the pumphead, ball valves, full PTFE diaphragm and fluid fittings are made from virgin ultrapure PTFE to ensure ultimate chemical resistance, maximum product purity and zero metal down to the ppb range.

Drive technology

The membrane deflection takes place with an electronically controlled stepper motor and force fit drive. The duration of the ejection process varies depending on the set dosing, while the intake stroke is always implemented at a constant speed.

The adapted control of the membrane speed to the dosing cycle optimizes the properties of the dosing pump in unique way

• The constant, maximum stroke ensures lowest dead volumes, reduces the risk of outgassing of the medium and improves dosing accuracy.
• Smooth, constant fluid output reduces pressure spikes in the pump and lines and increases the life of consumables.
• The low-pulsation ejection process improves mixing at an injection port, in a mixer or in a reaction vessel

Device use

The pumps of the Ritmo®033 series are characterized by simple handling by means of a rotary / push wheel, intuitive user guidance and direct entry and display of the dosing rate in μl / min or ml / min.

A large color LC display shows the application parameters, the dosing status and also error states. Different colors signal operating or error states and ensure optimum visual monitoring of the pump's mode of operation. Error states, operating failures and moments of danger can be responded to as quickly as possible.

White - dosing pump in standby
Green - dosing pump works
yellow - Warning, dosing pump continues to work
Red - alarm, dosing pump is stopped

Functionality

R033 dosing pumps have a wide range of operating options with resulting dosing properties

• Manual mode
• Quantity-proportional dosage (pulse or analog signal)
• Batch dosage (pulse signal, time interval, weekly timer)
• Automatic dosing head venting
• Anti-cavitation mode (50%, 25%)
• Calibration function
• Service menu
• Scalable analog signal input
• Freely programmable output relays

Fluid connections

The fluid connections are selected depending on the pump head design.

Stainless steel pump heads are used e.g. equipped with ¼ "internal thread into which standard cutting ring screw connections can be screwed.

To the PTFE pump heads are in continuation of highest chemical resistance full PTFE fittings connected with clamping and sealing ring in full PTFE.

Installation flexibility

Maximum installation flexibility thanks to a universal mounting plate with click function for quick installation or replacement of the dosing pump is available for all models. For maintenance work, the pump is simply removed from the mounting plate and later snapped back into the mounting plate.

A rotating operating cube allows different installation situations in production plants, dosing stations or pilot plants without installing additional wall brackets.

Communication

R033 metering pumps have the following inputs and outputs as standard:

inputs:

• Ext.Start / Stop
• Pulse signal
• Scalable analogue signal 0/4 - 20 mA
• 2-level level monitoring

outputs:

• 2 programmable output relays for alarm / warning / operation / lifting signal
• Scalable analog output signal for pressure or flow
• Connection possibility for Profibus

Profibus communication

In an extended (optional) version, the dosing pump can be equipped or retrofitted with a Profibus communication box for remote control of all setting parameters. At the same time, the remote monitoring of the set parameters, including the causes of the error detected by the dosing pump, can take place.

With this equipment, the dosing pump for network communications is upgraded.

The E-box is installed in the simplest installation by plug & play between the dosing pump and the mounting plate.