Groundwater Level Sensors (36XW)
The KELLER Series 36XW is a robust submersible pressure transmitter designed for reliable water level measurement in groundwater, surface water, tanks and reservoirs.
Designed for continuous submerged operation, the Series 36 measures hydrostatic pressure to provide accurate water level data across a wide range of environmental and industrial applications. Its stainless steel construction and proven pressure sensor technology make it well suited to both temporary monitoring and permanent installations.
A range of pressure ranges and electrical outputs are available, allowing the Series 36 to be integrated with data loggers, telemetry systems, PLCs and other monitoring equipment.
Key Features
Reliable hydrostatic water level measurement
Robust stainless steel construction
Suitable for continuous submerged operation
Available in a range of pressure measurement ranges
High measurement accuracy and long-term stability
Integrated temperature compensation
Analogue output options available
Suitable for connection to data loggers and telemetry systems
Designed for permanent and temporary monitoring installations
Proven KELLER pressure measurement technology
Groundwater assessments
Environmental monitoring
Flood monitoring
Leachate monitoring
Pump & Recovery Tests
Site assessments
Surface water discharge measurement
Tidal studies
Specification | KELLER Series 36XW |
|---|---|
Measured Parameter | Pressure / water level |
Pressure Ranges | 0–0.3 to 0–30 bar |
Water Level Ranges | Approx. 3 to 300 mH₂O |
Accuracy | ±0.05% FS |
Total Error Band | ±0.1% FS @ 0–50 °C* |
Resolution | 0.002% FS |
Digital Interface | RS485/ SDI-12 (36XiW) |
Communication | KELLER Bus / digital communication |
Analogue Outputs | 4–20 mA, 0–10 V or 0.1–2.5 V depending on version |
Supply Voltage | Dependent on output configuration |
Probe Diameter | 22 mm |
Housing Material | 316L stainless steel |
Operating Temperature | -20 to +80 °C |
Ingress Protection | IP68 |
Lightning Protection | Extended protection available |
Typical Applications | Groundwater, surface water, boreholes, tanks and reservoirs |