Water Level Temperature Sensor
Model 301
The Solinst Water Level Temperature Sensor is a compact, allin-one submersible hydrostatic level transmitter that provides continuous, stable and accurate water level and temperature readings for a wide variety of applications.
The water level pressure sensor and temperature sensor are enclosed in a slim, robust 22 mm x 192 mm (7/8" x 7.55") 316L stainless steel housing. Double o-ring seals prevent leaks and a Faraday cage design protects against power surges and lightning. Each probe features a removable nose cone for optional use of the 1/4" NPTM threaded connection.
The durable water level pressure sensor provides 0.05% FS accuracy with automatically temperature compensated readings. There are six pressure ranges to choose from (5-200 m), with options for absolute and gauge (vented) pressure sensor setups.
The Water Level Temperature Sensor works with digital and analog protocols – MODBUS, SDI-12, and 4-20mA (add-on Current Loop Adaptor). They are easy to integrate into your existing SCADA or PLC systems.
Communication cable assemblies are available in lengths up to 300 metres. The cables are easily and securely attached to the sensor using a threaded connection.
Simple PC software utilities are used to set up the sensor for the different protocols, perform simple diagnostics, and update sensor firmware if required. A USB-A programming cable is provided for connection to the PC.
Features of the Water Level Temperature Sensor
- Absolute or vented pressure sensor for highlyaccurate water level measurements: 0.05% FS
- Single probe can be programmed for use with MODBUS, SDI-12, or 4-20mA protocols
- Built-in hydrophobic filters and no desiccants to replace (vented version)
- Easy to integrate into existing monitoring systems
- Simple software utilities for setup, diagnostics and firmware upgrades
- Compact, narrow diameter housing for discreet installations
- Robust sensor housing design features double o-ring seals for advanced leakage protection
- Strong cables for reliable deployment to 300 m
- 1/4" NPTM threading for connection to pipes and conduits
Where the Water Level Temperature Sensor is Used
The Water Level Temperature Sensor is suited to a large number of applications. The MODBUS and SDI-12 protocols are common in industrial monitoring, while 4-20mA is often used in the environmental sector. For example, the Water Level Temperature Sensor can be used, long-term, in:
- Groundwater, wells
- Rivers, canals, lakes, reservoirs, seawater, etc.
- Drinking water
- Wastewater
- Industrial and marine tanks and vessels
- Stormwater structures
- Landfill and other contaminated outflows
