OTT Hydromet ecoLog 500 groundwater data logger

The OTT Hydromet ecoLog 500 groundwater data logger specialises in long-term measurement of water levels and temperature. It can also store the measured values and transfer them to the headquarters at defined intervals. It sends status information and transmits alarm signals, if required when limit values are exceeded, using telecommunication channels (SMS, HTTP, FTP, etc) that can be flexibly configured.

The system can be easily and rapidly installed, the automatic data transfer saves numerous trips to the measurement location and the remote diagnostics facility prevents any loss of data. The system also works in a cost-saving way with a well-thought-out energy strategy. The lithium battery pack will last up to 10 years depending on measurement and transfer rates. That reduces maintenance time and protects against any gaps in the data due to power cuts. Alternatively, the system can also be sustained with alkaline batteries.

All the components of the compact system fit within measurement tubes of 2″ or more and are consequently protected against both environmental influences and vandalism. The pressure probe is in a stainless steel housing and comprises a robust, ceramic pressure cell, a precise temperature sensor and the data logger, which can store up to 500,000 measured values. The communication unit forms the upper end of the system and is connected by means of a kevlar-reinforced cable with a pressure compensation capillary. It houses the batteries along with everything necessary for the data transfer: an IR interface, a GSM/GPRS modem and an antenna. Alternatively, an external antenna can be connected.

The battery change is as easy. For configuration on-site, the communication unit is connected to the laptop by means of an optical IR reading head. Any plug contacts which could bend or corrode are simply not used.

The OTT ecoLog 500 ensures precise groundwater data with its integrated data transfer unit. It also ensures significant savings over time.