The ARGES Potassium Sensor by Keynes Controls is a high performance submersible sensor that has been designed to simplify the acquisition of water quality measurement parameters into any platform that supports data logging operations using digital network communications.

Each of the Intelligent Submersible ARGES Potassium Sensor by Keynes Controls is suitable for direct connection to industry standard SDI12 Data Recorder, RS485 and MODBUS networks. The instruments can communicate directly across a MODBUS network and can be integrated into plant wide SCADA applications and to to many 3rd party PLC controllers.

Product Features:

• Measurement range: 0.04 to 39000 ppm  - autoscaling 
• Potassium Resolution:0.05 ppm
• Potassium  Accuracy:+/- 5% of Reading or 2 ppm
• Temperature (Deg C): 5-50 Deg C
• Sensor recalibration Period: 2 months continuous use - 720 hours 
• pH range: 1 - 9
• Built in SDI12 / RS485 / MODBUS Digital Communications
• Very low stand-by power
• Fast Start Time <0.5 Sec
• In-built communications SDI12 RS485 MODBUS
• Full Digital Operation
• Settling Time: 10-60 Secs from dry
• Potential drift: 2 mV / Day 
• Store dry for long lifetime
• Sensor Type: Solid state reference and half cell
• Calibration Details : Embedded - Last calibration date / User
• Calibration Points: 2 Point - others on request
• Sensor Isolation: Reference cells isolated between measurements
• Interference IONS: Ammonium, Caesium
• Optional USB Interface 
• Free Windows Applications Software
• Stand-alone and multiparameter operations.
• Built-in Serial Number / Calibration Date Records