Motor-driven pumps  Sigma/ 1  Sigma/ 2  Sigma/ 3

ProMinent Academy for Water Technology 2 Control Type Features  Stroke length adjustment from %  Digitally accurate stroking rate via keypad  LC display  Two-stage level switch input  Flow monitor input  External control via Pulse Control  External control via 0/4-20mA signal

ProMinent Academy for Water Technology 3  Extended control options, e.g. free combination of mA/frequency ratio  Real stroke length measurement  Easy pump calibration  Direct setting gph or lph  Warning when leaving the calibrated range (+/- 10%)  New relay types:  Warning, switch-off, power  Analog output for capacity  Timer + program design software  Profibus DP  Programmable via PC New Features Control Type

ProMinent Academy for Water Technology 4  Large illuminated LC display  Quick change of display information e.g. gph or stroke frequency  Display of stroke length in %  Optical indication of operation status (3 LED´s) Display i

ProMinent Academy for Water Technology 5  Removable power cord  Retrofit relays:  Warning  Switch-off  Power  Fault indicating relay  Pacing relay  Relay combinations:  Fault indication + pacing  Switch-off + pacing  Diaphragm failure detector Modular Design

ProMinent Academy for Water Technology 6 Speed Control Microprocessor controller with  an optimum combination of speed control and Stop/Go operation  offers an extensive control range with selective fine tuning

ProMinent Academy for Water Technology 7 Sigma/ 1 from 5 to 32 gph, Sigma/ 2 from 15 to 111 gph, Sigma/ 3 from 45 to 264 gph. Three performance ranges – one unified technical concept based on the economical modular principle Three performance ranges

ProMinent Academy for Water Technology 8 The overlapping pump performance ranges cover an extraordinarily wide spectrum. The modular principle: Many of the components employed in the Sigma range are identical and can be used throughout the series =  simplified spare parts management  less stockholding Identical operating systems for all three pumps in the Sigma series =  less training of users  less danger of misuse  more effective and safer function monitoring THREEFOLD SIMPLICITY

ProMinent Academy for Water Technology 9 Sigma/ 1 Base can be turned 90°

ProMinent Academy for Water Technology 10  Microprocessor control  optimum combination of speed control and digital stroking frequency.  easy-to-use operating menu  Display of all functions via the back-lit LCD display. Proven precision

ProMinent Academy for Water Technology 11 frequency display open programming menu start /stop change display info relay; Profibus external signals ON / OFF mains cable Sigma Control Version Integrated operation panel

ProMinent Academy for Water Technology 12 Maximum safety: the dual DEVELOPAN ® diaphragm with sensor in the inter-diaphragm cavity guarantees effective protection even in the event of a diaphragm rupture. Continous working with safety diaphragm No process interruption Dual DEVELOPAN ® diaphragm with sensor

ProMinent Academy for Water Technology 13 push rod return spring worm gear uptake fork eccentric motor flange stroke length adjustment inner housing Plastic housing Design and function Drive

ProMinent Academy for Water Technology 14 Sigma pumps control types multiple easy external control Two-stage Level switch External Signals 1. Potentially free contacts 2. mA 3. Profibus DP Flow- monitor Relay options: fault indicating, warning, switch-off; pacing mA output signal for Capacity in gph Profibus DP “Pause” Remote ON/OFF Auxiliary frequency independently switchable frequency

ProMinent Academy for Water Technology 15 Sigma Control Version - integrated frequency inverter feedback signal from stroke sensor Internal Control Contact signals mA signals Control of the stroke number 1 stroke is performed with the same speed as with a frequency of 60 strokes / min.: 1 stroke/s, i.e. the stroke volume stay constant

ProMinent Academy for Water Technology 16 Sigma Control Version Control of the stroke number  Pump with integrated stroke sensor  Stroke sensor gives a feedback signal for every sucessfully performed stroke  The real speed is equal to the control signal and the theoretically calculated stroke number  Speed = Desired stroke number = Desired volume  The frequency is varied under load until the stroking rate equals to the theoretically calculated value

ProMinent Academy for Water Technology 17 Sigma’s PROFIBUS® interface enables full integration of metering technology into a PROFIBUS ® processor control system. Sigma with professional PROFIBUS®-DP functionality Minimum installation costs – maximum operating safety

ProMinent Academy for Water Technology 18 Profibus DP Probe Level Sensor/Actor Level