iLevel-GW Nano Groundwater Datalogger

Request a quote or adviceAdded to Request List

The iLevel-GW Nano is an absolute pressure groundwater data logger for measuring and storing water pressure and temperature. By means of a steel cable the iLevel-GW Nano is lowered in the water level pipe and fixed below the lowest water level. The ultra…  Read more

Brochure
Measuring Ranges
  • 0-2 bar => 0-2000 hPa
  • 0 - 10 mH2O, 0 - 20 mH2O, 0 - 90 mH2O  
  • Other ranges on request
Accuracy Max. ±0.15 % FS (linearity best straight line at RT, hysteresis, repeatability)
Long-term Stability Typ. ±0.1 % FS, max. ±0.2 % FS (limited to max. ±3 mbar)
Overload 4 x pressure range
Communication Local: 433 MHz, license-free ISM radio
Power Supply Lithium batteries 1xAA Mignon (up to 10 years operating time or ~2 Mio measurements)
Data Memory 2 MB memory up to 150.000 measurement series, non-volatile,
storage cycle freely-definable
Operating Temperature Range Operating range -5 °C (only in liquid media) to +80 °C
Material Stainless steel 316 L / 1.4435
Dimensions (Ø x H) 24 mm x 210 mm
Conformity / Compliance

CE

The iLevel-GW Nano is an absolute pressure groundwater data logger for measuring and storing water pressure and temperature. By means of a steel cable the iLevel-GW Nano is lowered in the water level pipe and fixed below the lowest water level.

The ultra low-power data logger records the measured values in adjustable measuring intervals with a runtime of up to 10 years (~2 million measurements). For data readout, the iLevel-GW Nano is pulled out of the measuring well and the data is conveniently read out via short-range radio using a laptop.

In the logger software (cloud application), the true water level is calculated from the recorded absolute water pressure and the barometric pressure. (Please note: The air pressure needed to calculate the water level is recorded with a barologger. Only one barologger is required for a measurement field.)

Operation
The iLevel-GW Nano, equipped with a sealed lithium battery, is optimized for low-power long-term use of up to 10 years and beyond. The data logger operates in a very low power mode and wakes up only for measurement or data readout by short-range radio.

The autonomously working iLevel-GW Nano continuously stores water pressure, water temperature, and battery condition.

  • Made of stainless steel
  • Dimensions optimized for insertion in pipes from 1“ upwards
  • Up to 10 years maintenance-free operation
  • Data readout via 433 MHz short-range radio
  • Absolute pressure logger / barologger - same design

The iLevel-GW Nano is the ideal measuring device for measuring campaigns where quick and easy installation is important. The programmed data logger is lowered into the measuring well with a steel cable and is immediately ready for use.

  • Groundwater: Water pressure, air pressure and water temperature recording
  • Water level in surface waters: Especially to be used in flood-prone areas (moors, flood plains), where differential pressure probes stop their service in case of flooding as the differential pressure opening is blocked by the overflowing water.