EVOLUTION EW² Pool Dual-Channel Controller

Pricing: POA, contact us for a quote.

Configuration confirmed at order: this listing covers the base EW² Pool controller. The specific flow cell and chlorine measurement method (see available models below) is selected when stock is ordered.

Professional installation and commissioning recommended: this is a water treatment control instrument and should be installed, calibrated and commissioned by a qualified pool technician.

EVOLUTION EW² Pool is a dual-channel measurement and dosing control instrument with software dedicated to swimming pool applications. It measures via two inputs configurable for pH electrode, ORP electrode, or amperometric sensor, alongside a Pt100/Pt1000 input with automatic sensor recognition for temperature measurement and compensation.

The interface uses a large RGB backlit display (colour changes with instrument status) and four multifunction softkeys, with three-level, password-protected configuration.

Key features

• Each measurement channel has: 1 output to control a dosing pump (configurable On-Off / PWM / PFM), 1 analog 0/4-20 mA output (adjustment or signal repetition), and 1 level sensor input (one or two stage)
• Input for sample water flow control, and a pause digital input to disable all outputs
• Two additional outputs for driving flocculant and anti-algae dosing pumps
• "EcoMode" function to reduce dosing and save chemicals, controllable by external contact or timer
• Internal RTC for time-schedule setting and date/time data labelling
• USB port for configuration, data download and system upgrades
• RS485 serial port with Modbus RTU protocol; optional connectivity via STEIEL's SteieLynx gateway
• Compatible with STEIEL's patented easy+fix system for compact sensor-holder assembly on the instrument case

Available models (chlorine measurement method)

• pH/ORP – indirect chlorine determination via ORP (mV) readings
• pH/CAC – direct chlorine measurement in ppm, with membrane amperometric probe
• pH/CLE – direct chlorine measurement in ppm, with Cu/Pt amperometric cell

Specifications

• Power supply: 100-240V~ (standard); 24V-/~ or 12V- on request, manufactured with NZ plug
• Housing: watertight IP65, suitable for damp technical rooms
• Mounting: wall bracket