Electronic Model Pumps
The Electronic Model ARO Diaphragm Pumps are suitable for solutions requiring high level of controllability where repeatability (±5%) and flow validation is essential. These are particularly useful in the textile industry for dyeing units as well as in the effluent treatment plants for accurate dosing of chemicals as customers look to increase thesafety and efficiency of their systems and processes.The ARO Electronic Interface Pumps offer the following options:
Solenoid Actuation – The pumps are fitted with a solenoid coil which when energized actuates the pump air valve allowing the pump to cycle. When the electrical signal is removed the airvalve resets itself, thus completing the cycle. By providing continuous ON / OFF signals the pump cycle rate can be increased or decreased remotely. Electrical signal from PLC, pressure switch or a simple line switch can be used to operate the pump. Varying supply voltages are offered – 120V AC, 240V AC, 12V DC, 24V DC. For instrinsically safe environments ATEX Coils can also be provided.
End of Stroke Feedback – This system provides a closed contact output for monitoring pump operation. An inbuilt pressure switch detects change in air pressure on each stroke within the pilot valve and sends out a digital signal – 9.6 – 32V DC. This indicates the end of the pump stroke. Thus when integrated with the solenoid control, end of stroke feedback provides a signal the instant the pump has completed the stroke, so that the timing of the strokes can be adjusted to ensure that the pump completes each stroke.
Cycle Sensing – This system provides real-time monitoring of the pump operation. A magnet is embedded in the spool to provide a signal that senses/counts cycles.