Designed by Soil Instruments, the Hydraulic Piezometer is a passive pore-pressure sensor that transfers pressure from a buried ceramic filter tip, through a hydraulic line and into a remote readout station. It operates without electronic components in the probe, reducing the likelihood of failures in saturated environments.
The sensor typically functions with de-aired water in the hydraulic circuit and a tip chosen to suit the soil. Data readout can be performed at the surface with a Bourdon gauge or via external pressure transducers and data acquisition systems.
Other key features include:
The simplicity of the Hydraulic Piezometer makes it ideal for complex subsurface environments, fine soils or remote installations where electronic sensors can suffer from failure and signal interference.
We pride ourselves on being technology and product agnostic. This means that we are not tied to any specific brands or products and will always find the right solution for our customers.
A decision may be guided by price or features, so we work closely with our clients to understand their requirements and challenges. Maintaining a solutions-based approach ensures that our clients receive an effective and efficient monitoring plan tailored to them.
We leverage our extensive experience and advanced technologies to design and implement the most appropriate automated monitoring strategy for each site.
Our commitment to being the most trusted provider for tailored monitoring solutions ensures that our clients receive the highest quality service and support.
We often incorporate the Hydraulic Piezometer into our tailings dam monitoring systems. Here, it offers a low-maintenance, high-performance option in notoriously volatile soils. We use the sensor to track pore pressure changes that could affect dam wall stability, cause seepage or impact foundation stability.
The Hydraulic Piezometer is also well suited to deep borehole installations, where electrical sensors are unviable due to interference and saturation. The sealed hydraulic system provides stable readings in these conditions and when paired with data loggers, offers a reliable understanding of groundwater movement. With a Hydraulic Piezometer incorporated into their borehole monitoring system, managers can support long-term studies, dewatering strategies and construction-stage monitoring.
This sensor is also suited to monitoring:
Our services include professional installation, system integration and ongoing data assistance. With Monitel, you can remotely access data and set up immediate alerts if specified thresholds are exceeded.
We pride ourselves on being technology and product agnostic. This means that we are not tied to any specific brands or products and will always find the right solution for our customers.
A decision may be guided by price or features, so we work closely with our clients to understand their requirements and challenges. Maintaining a solutions-based approach ensures that our clients receive an effective and efficient monitoring plan tailored to them.
We leverage our extensive experience and advanced technologies to design and implement the most appropriate automated monitoring strategy for each site.
Our commitment to being the most trusted provider for tailored monitoring solutions ensures that our clients receive the highest quality service and support.
Designed by Soil Instruments, the Hydraulic Piezometer is a passive pore-pressure sensor that transfers pressure from a buried ceramic filter tip, through a hydraulic line and into a remote readout station. It operates without electronic components in the probe, reducing the likelihood of failures in saturated environments.
The sensor typically functions with de-aired water in the hydraulic circuit and a tip chosen to suit the soil. Data readout can be performed at the surface with a Bourdon gauge or via external pressure transducers and data acquisition systems.
Other key features include:
The simplicity of the Hydraulic Piezometer makes it ideal for complex subsurface environments, fine soils or remote installations where electronic sensors can suffer from failure and signal interference.
We pride ourselves on being technology and product agnostic. This means that we are not tied to any specific brands or products and will always find the right solution for our customers.
A decision may be guided by price or features, so we work closely with our clients to understand their requirements and challenges. Maintaining a solutions-based approach ensures that our clients receive an effective and efficient monitoring plan tailored to them.
We leverage our extensive experience and advanced technologies to design and implement the most appropriate automated monitoring strategy for each site.
Our commitment to being the most trusted provider for tailored monitoring solutions ensures that our clients receive the highest quality service and support.
The W1 Standpipe Piezometer is a reliable and cost-effective Casagrande type piezometer designed for monitoring in vertical boreholes. At Monitel, we have used it to measure groundwater levels and pore water pressures on sites across Western Australia.
The sensor is typically installed with the filter tip positioned at the chosen monitoring depth. For pressure data, the tip is surrounded by sand and enclosed with a bentonite seal to isolate the measurement area. Water level data can be gathered through a riser pipe or a Bourdon gauge (in artesian conditions). The W1 is suitable for various ground types and can be customised to match specific site requirements. It can be deployed with either a porous or ceramic tip and has a drive-in capacity for softer soils. The simplicity, versatility and reliability of the W1 Standpipe Piezometer make it an ideal choice for an accurate and consistent groundwater monitoring solution. Key Specifications:
The 4-20mA Piezometer is engineered to precisely measure pore water pressure in fully or partially saturated soil and rock. It is one of the more commonly deployed sensors in our piezometer range.
It utilises a diaphragm-type pressure transducer, delivering a robust 4-20mA output signal that is ideal for integration with data loggers and remote monitoring systems. It boasts an advanced and durable design, with 316-grade stainless steel and hermetic sealing protecting the technology from environmental effects. The casing itself is constructed to ensure that any stresses have no impact on readings. The 4-20mA is capable of measuring pressures from -50 kPa to 3500 kPa, accommodating a wide range of monitoring needs. Key specifications:
The W16 Kompakt Piezometer is a vibrating wire piezometer designed for fast and accurate measurement of pore water pressures.
It utilises proven vibrating wire technology, where changes in wire tension correlate to changes in pore water pressure. Data is then sent to a read-out, terminal unit or data logger. The W16 boasts a compact design, making it ideal for confined installations. It is only 19mm in diameter and weighs just 150g (excluding the filter and cable). However, it is also robust and durable, with hermetic sealing promoting resistance to environmental factors. An over-voltage surge arrestor safeguards against electrical damage. The sensor tip includes an integral porous element, which houses the vibrating wire technology. Key Specifications:
The VWP-3000 Series Vibrating Wire Piezometers are designed to provide measurements of pore water pressure across geotechnical and structural engineering applications.
These piezometers work by converting fluid pressures (exerted on a sensitive diaphragm) into a frequency signal. They collect reliable and accurate data suitable for monitoring groundwater elevations, pore pressures and fluid pressures.The series is built to withstand tough and demanding conditions, ideal for direct burial in fills, embankments and boreholes. Each model includes an internal thermistor and a 90V gas plasma arrester, acting as a safeguard against lightning strikes.
The VWP-3000 Series also features:
Models in the VWP-3000 Series:
