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    Water Level Temperature SensorWater Level Temperature SensorWater Level Temperature SensorWater Level Temperature Sensor

Water Level Temperature Sensor

Provides the option of highly accurate water level transmission using multiple protocols – MODBUS and SDI-12

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Water Level Temperature Sensor

The Solinst Water Level Temperature Sensor is a compact, allin-one submersible hydrostatic level transmitter that providescontinuous, 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 gauged (vented) pressure sensor setups.

The 301 Water Level Temperature Sensor works with digital protocols – MODBUS and SDI-12 – and 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 either MODBUS or SDI-12 protocol
  • 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, and also used in the environmental sector. For example, the Water Level Temperature Sensor can be used to measure hydrostatic liquid levels, 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

Absolute Water Level Temperature Sensors

Item No.Description
SO116473-0 301 Water Level Temperature Sensor 5m Absolute
SO116867-0 301 Water Level Temperature Sensor 10m Absolute
SO116868-0 301 Water Level Temperature Sensor 20m Absolute
SO116869-0 301 Water Level Temperature Sensor 30m Absolute
SO116870-0301 Water Level Temperature Sensor 100m Absolute
SO116871-0 301 Water Level Temperature Sensor 200m Absolute

Vented Water Level Temperature Sensors

Item No.Description
SO116494-0 301 Water Level Temperature Sensor 5m Vented
SO116872-0 301 Water Level Temperature Sensor 10m Vented
SO116873-0 301 Water Level Temperature Sensor 20m Vented

Water Level Temperature Sensor Specifications

 
Level SensorPiezoresistive Silicon with Hastelloy® sensor (Absolute or Gauged)
RangesM5, M10, M20, M30, M100, M200 (meters)±
Accuracy0.05% FS
Resolution0.0006% FS
NormalizationAutomatic Temperature Compensation
Temp. Comp. Range0°C to 50°C
Temperature SensorPlatinum Resistance Temperature Detector(RTD)
Operating Temperature-20°C to 80°C
Temp. Sensor Accuracy± 0.05ºC
Temp. Sensor Resolution0.003°C
Response Time1~2 minutes
CommunicationDigital communications – Modbus and SDI-12
Interface Connector4-Conductor
Power ConsumptionMax 2mA in idle, 10mA while reading sensor
Size22 mm x 192 mm (7/8" x 7.55")
Weight173 grams (6.1 ounces)
Wetted MaterialsDelrin®, Viton®, 316L stainless steel, Hastelloy, Polyurethane (TPU boot)
 

Communication Cable Specifications

 
Wetted MaterialsPolyurethane, Nickel plated Brass, Viton
DiameterCable: 8 mm (0.32")
Connector: 20 mm (0.79")
LengthsUp to 300 m
Max. Bend Radius25 mm (1")
Operating Temperature-20ºC to 80ºC
Vent Tube Moisture ProtectionBuilt-in hydrophobic filters at sensor connection and plug at surface