The groundwater data logger OTT Orpheus Mini has been designed for reliable monitoring and storage of water level and temperature for water management. The main application of OTT Orpheus Mini is installation in groundwater pipes and wells. In addition, application in open waters and tanks is possible. OTT Orpheus Mini is equipped with a rugged, ceramic-capacitive measuring cell and a precise temperature sensor. A data logger, which can be configured individually, stores and manages the monitored measured values in a 4 MB non-volatile memory (corresponds to approx. 500,000 measured values). Connection for data retrieval and start-up and power supply of the OTT Orpheus Mini are provided by the communication unit. The kevlar-reinforced pressure probe cable with pressure compensation capillary in combination with a desiccant cartridge prevents measurement errors by compensating barometric pressure fluctuations. When downloading data the data logger transfers the measured values via an RS-485 connection to the communication unit, which establishes a non-contact transmission of data via infrared interface (IrDA) to the computer. Power supply can optionally be provided by Lithium batteries (min. 5 years operating time/1 h measurement interval) or Alkaline batteries (min. 1.5 years operating time/1 h measurement interval). The batteries can easily be changed on site. Various adapter plates and a suspension bracket allow easy and fast installation in well pipes of 1" to 6" diameter. From a pipe diameter of 2" control measurements via contact gauge are possible without removing the groundwater data logger.
Features
Potted, hermetically tight pressure probe with data logger
Installable in well pipes of 1" diameter
Ceramic-capacitive measuring cell
Longitudinally stable pressure probe cable by Kevlar core
Communcation unit easy to open: change of batteries possible on site
Infrared interface (IrDA) for non-contact, convenient data transmission
