Our Kellor Sensors have been installed across New Zealand and have proved to be accurate, reliable, easy-to-use and extremely cost-effective. They are available in a choice of ranges, diameters, SDI-12 or MODBUS connectivity and can be configured to work seamlessly with our Van Walt Data Collection telemetry equipment.
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The Requirement: To monitor the groundwater and water level in and around a landfill site.
Solution: Deployment of a vanwaltDataHub connected to Keller sensors to provide information every 15 minutes which is then uploaded hourly and alarm notifications sent directly to the site managers for immediate action to ensure the facility is running effectively.
The Requirement: Flow rate of streams determine water abstraction permissions to the ski field operator who requires water for snow making. The regulator requires daily data.
Solution: Flumes are installed to derive water flow data. Using the alarms functionality a water pump is either switched on or off. Data is automatically forwarded to the regulator by FTP. A similar system is also used to switch off the pumps when the turbidity is too high and could damage the pumps.
The Requirement: Large sluice gates between lake and river affect the level of the adjacent river when they are opened. The regulator wishes to establish the effect.
Solution: Installation to record data every 5 seconds with an accuracy better than 5mm. Uploads every 30 minutes to our server and daily transfer of data by FTP to the regulator.
The Requirement: A research project monitoring the soil moisture on a small, uninhabited island in the Atlantic, just off the coast of Spain where the cost and difficulty of getting to the island was far in excess of installing a system that could relay the data back to the mainland without having to go to site.
Solution: Deployment of multiple, buried Soil Moisture probes - HydraProbes - connected to a single vanwaltDataHub. The batteries in the DataHub topped up with a solar panel and the installation protected with a perimeter fence. Data is collected hourly and uploaded once a day for analysis.
The Requirement: Whatever your requirment, when it comes to an extra pair of hands to help install equipment or complete an entire installation, the team in the New Zealand Office can help.
Solution: Window Sampling; Piezometer Installation; Lake & River Bed Sediment Sampling; Pump & Slug Testing; Soil Permeability & Moisture Testing and Data Logging & Telemetry Equipment
The Requirement: Part of the infrastructure is below the water level and could be subject to flooding. Dewatering pumps on the adjacent properties exacerbates the problem.
Solution: A number of Van Walt Data Collection Systems monitor the water levels. Alarms have been set so all parties receive an early warning that flooding could occur.
Enquiries for equipment are like buses, no one enquires about a Flume, then several come at once!
As a result we have put together an article outlining the equipment we recommend for monitoring water flow in rivers and streams.
We have developed a versatile, secure, flexible, sophisticated and accurate web-based groundwater; water level; water quality and soil moisture telemetry system...
To complement our rental range and when you're too busy to get on site; or too far away to make a site visit cost effective – Van Walt New Zealand can help. Offering training, technical support, site visits, servicing and repairs, project media coverage, demonstrations, best practice updates, case studies, exhibiting, after sales care and equipment advice.
To measure and monitor water we offer a range of water level loggers, water level data loggers, water level dip meters and high accuracy, vented water level sensors
Here at Van Walt we have the right groundwater pump, groundwater sampler, hall marked filter or groundwater sampling tubing and monitoring well pipe for you.
Accurate and consistent Soil Moisture monitoring has become increasingly important when researching environmental factors like climate change, decreasing water resources, improved crop production and protecting threatened habitats.