DESCRIPTION
The system is designed to interface to Spirax CP10 conductivity and Pt100 temperature sensors and to provide mains AC outputs to drive suitable valves; the system will accept 230/110 Vac input.
The primary functions are: -
Surface (TDS) Blowdown control (SBD)
Timed bottom blowdown (BBD)
Pulsed output control for steam valve (POP)
The bottom blowdown valve and the steam header valve inputs have provision for micro-switch feedback which indicate to the controller the success or failure of the valve opening.
The front panel houses
LCD display
Status LED's
Alarm / Fault LED's
When a valve fails the alarm LED is illuminated.
SMS Alarm Functions
The system will allow for 2 external inputs and when an alarm occurs it sends an SMS message to a specified phone number.
Software
The unit communicates locally or via a modem link with AQUAnet software so the status of the boiler can be monitored from any remote location.
Controls
Conductivity Set point
Surface blowdown On Time in seconds
Surface blowdown Off time in minutes
Bottom blowdown Period (in minutes)
Bottom blowdown On time (Max)
Steam header Valve POP ON time in seconds
Steam header Valve POP OFF time in seconds
Alarm band in uMhos
Temperature coefficient of conductivity as % per degrees C
Scale Factor (SF) conversion (conductivity to microSiemens)
Alarm Outputs
SMS
Volt Free Relay contacts
LED
Software via AQUAnet
