PROTEUS® intelligent metering pump engineered with latest technology for most demanding applications, based on feedback from water treatment operators and industry experts. Mechanically actuated diaphragm with variable speed stepper motor drive for full control of stroke profile with ±1% steady-state accuracy over 1000:1 turndown ratio. Flow rates 0.023-200.6 l/h (effective from 0.09 l/h). StayPrime™ degassing technology mitigates risk of losing prime through automated priming cycle. Slow Mode for viscous or degassing media such as peracetic acid. Backlit color display with multilanguage interface (English, French, Portuguese, Spanish, Chinese). NEMA 4X/IP 65 housing for harshest environments. Models: Manual, Enhanced (programmable inputs/outputs, 4-20mA, pulse, batch), Communications (Modbus RTU/Profibus DP). Available in PP, PVDF and 316L stainless steel. Alarm log, totalizer, calibration module.