When choosing a system for environmental monitoring at sea it is tempting to use the multi-function, lightweight multi parameter probes as commonly used in fresh water monitoring. Typical sensor suites like this are made by YSI, HydroLab or Eureka. When used in harsh environments however these instruments have shown to be just to fragile. Nortek therefore decided to try and develop a sensor suite that is more robust and able to withstand the harsh conditions at sea.
Requirements:
- Robust construction, able to withstand reasonable impact
- Low power
- Field replaceable sensors
- All sea water resistant materials
- Flexible communication options (RS-232, RS-485, MODBUS, SDI-12)
Nortek Multi Parameter Probe
 | The Nortek Multi Parameter Probe is a stand alone water-quality data collection system for use in harsh environments. Basically it is a combination of field-proven sensors packaged in a robust delrin and brass frame. Data collection and control is handled by a standard Campbell Scientific CR-800 datalogger, packaged in a sturdy PE-plastic pressure housing. This provides a proven stable platform for data collection and retrieval and allows for easy customisation. Data is logged internally or may be output in a NMEA compatible format over RS-232. Data can also be read from the instrument using the SDI-12 or Modbus protocols. When a GPRS modem is connected all data is automatically sent to an FTP server.
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