The OTT PLS measures water level, depth to water, or pressure by means of an integrated controller and ceramic pressure-measuring cell. Design features such as multiple communication outputs (SDI-12 or 4 ... 20 mA), stainless steel housing, and a rugged cable make this sensor ideal for monitoring water level in a variety of applications.

• Application: Surface water, Groundwater

• Measurement technology: Vented pressure cell

• Parameters measured: Water level, Pressure, Temperature

• Product Highlights: Water level and temperature measurement - for use with external data logger

• Measurement range: 0 … 4, 10, 20, 40, and 100 m

• Accuracy: ± 0.05% FS

• Internal data logger: Yes

• Interface: SDI-12, RS-485 (using SDI-12), or 4 … 20 mA

 

ADVANTAGE

• The robust ceramic pressure cell offers industry-leading accuracy and does not deform over time like membrane technology, providing long-term measurement stability

• Rugged design: Ceramic pressure cell resistant to physical force (5 x burst pressure) and enclosure made of high-quality saltwater resistant steel for use in coastal environments

• Built-in microcontroller – compensates for temperature effects and applies correction values for gravitational acceleration and water density

• Vented pressure probe, automatically compensates for changes in barometric pressure

• Robust cable with Kevlar core for length stabilization and capillary tube for venting

• Simple setup and connection to external dataloggers using SDI-12 or 4 ... 20 mA interfaces

• Optimized resolution is achieved by assigning the 4 ... 20 mA to that part of the measuring range that is actually required

• Water temperature output in addition to water level (for SDI-12 output

 

Example Of Use:

             Measuring water level in surface and groundwater, including:

• Stations with sloping bottom, e.g. water banks

• Small diameter pipes or holes (from 1" Ø)

• Dams, weirs, irrigation systems

• Waterways that occasionally ice over

• Brackish water, saltwater

• Waterways that do not contain water throughout the year (e.g. retaining basins)