Water level indicator SOND-1
Ground water level indicator SOND-1 is a portable device determined for the measurements of the ground water level in the bores.
The device comprises the sensor, cable roll, cable length measuring unit and the basement. The electronics is located in the centre of the cable roll.
For measuring the device is supported on the bore or the supportive stand nearby the bore. The device may be held also in hand. After the counter of cable length measuring unit is cleared by pushing the lever at right side of the counter the cable with the sensor is led into the bore. At the same time the cable must go through the cable length measuring unit. If the sensor reaches the water the electrical signal will switch in the light and the sound signals. The reading of the counter corresponds to the level of the ground water in the bore.
The cable length measuring unit has two counting modes: adding pulling the cable down out of the cable roll and subtracting pulling it back in reversed direction. This makes the measuring specially comfortable. The cable roll is equipped with the handle to facilitate the cable rewinding. For transport the ground water level indicator is placed into the bag.
| Counter measuring unit | 1 cm |
| Counter range | 999.99 m |
| Cable length registration accuracy | +/- 1 cm |
| Cable length | 30 to 200 m (depending on the order) |
| Max measuring speed | 60 m/min |
| Sensor diameter | 15 mm |
| Operating voltage | 12 V DC |
| Working temperature | -5°C to +40°C at 100 % relative humidity |