Chemtrol PC2100 Programmable Controller (200-999 mV; pH: 0-14; 0-10 ppm; 0-20,000 uS/cm or ppm; -18 ~ 60C)

ORP control: 200-999 mV, Set-point for oxidizer or reducer, Programmable shock treatment and chemical saving cycles

pH control: 0-14, set-point for acid or base feed

Conductivity monitoring: 0-20,000 μs/cm or ppm, conversion factor for TDS

Temperature readout: from -18 to 60 °C

Langelier index: calculated from ph, temp, total alkalinity and calcium hardness. Water balance display

Sensor calibration : 1, 2 or 3 points

Control modes: off, manual, automatic, timer, on/off or proportional feed

Data logging: on-board memory for up to 999 tests, optional usb port for data-log download

Alarms: high / low out-of-range, run time and overfeed, patented probe alert safeguard, visual, audio and external alarms

Mechanical: 34 x 29 x 17 cm, rain and splatter proof nema type 3r cabinet

Electrical: 10 A 110/230 V with selector switch, All output and alarm relays 5 A

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