The Greenspan Analytical Conductivity/ Temperature/ Pressure/ pH sensor provides numerous technical features: -

• Toroidal conductivity sensing technology that eliminates electrode corrosion effects, guaranteeing long life and reduced field service.
• On-board microprocessor controlled temperature compensation and linearisation delivering accurate conductivity data normalised to 25 °C. Alternatively, raw conductivity data may also be provided.
• Innovative, optically isolated signal conditioning electronics ensure true and accurate pH readings at all times.
• Field proven gel-filled double junction pH electrode provides long-term accuracy.
• Rugged ceramic pressure transducer offering unmatched reliability and performance.
• Depth readings regardless of atmospheric changes by means of a large diameter venting tube.
• A closed vent system is provided in multiples of units to accommodate varying lengths of vented cable. One unit will be sufficient for cable lengths of up to 70 metres. By completely isolating the vent tube from atmospheric air by means of a partially inflated polymer sack, the CVS allows barometric pressure to exist within the vent tube without allowing moisture in to condense.
• Software calibration allows users to quickly and accurately recalibrate the sensor. Easy to use Greenspan calibration software runs on a portable PC