Model ECTD-30V and ECTD-60V CTD sensors are available for monitoring electrical conductivity, water level and temperature in the ground. These arerobust, marine grade sensors.
Model ECTD-30V CTD probe comes with the model EPP-30V absolute pressure sensor and ECTD-60V CTD probe is with model EPP-60V absolute pressure sensor. The ESDL-30CTDB datalogger,that collects the data from these sensors, has much of the complex circuitry, lowering the cost of individual sensors without impacting their accuracy or resolution.
|Pressure sensor||EPP-30V, EPP-40V, EPP-60V pressure sensor|
|Sensor Range (MPa)||ECTD-60V – 10, 20, 35, 50 mWC|
ECTD-30V – 20, 35, 50, 100 mWC
|Conductivity sensor||4 Electrode bulls-eye cell; 120 mS range; cell constant 0.42 ± 0.05|
|Conductivity sensor range||5 – 120,000 μS/cm|
|Accuracy||± 0.5 % of reading + 1μS/cm (for 5 – 80,000 μS/cm)1|
± 1 % of reading(for 80,000 – 120,000 μS/cm)2
|Resolution||0.1μS/cm1; 1.0 μS/cm2M/sup>|
|Temp. sensor||Thermistor 30k Ohm; 0 – 80°C|