Wall Mount PH Differential Controller

Built-in non-volatile memory to ensure that calibration and other information are not erased if power supply fails.
:: Menu-driven program that simplifies set-up.
:: Automatic temperature compensation (ATC)
:: Manual temperature compensation setting without the ATC probe, with independent setting for calibration and process temperature.
:: Two galvanically isolated current outputs 04...20mA.
:: Two switching contacts as set-point relays.
:: 0 to 2000 seconds time delay adjustment on all relays – minimizes false alarms
:: Separately adjustable high and low set-point hysteresis (dead bands) prevent chattering of relays around the set points.
:: Three control modes: limit controller, P controller and PI controller (PPI controller as pulse length or pulse frequency).
:: Large dual display LCD for easy reading with clear multiple annunciators, alarm status, operational and error messages.
:: Separate alarm relay that alerts user to set point limits exceeded for a certain time and if the NTC300 thermistor wires are broken or disconnected during the ATC function