SL5 Submersible Level Transducer from Barksdale

SL5 Submersible Level Transducer from BarksdaleThe Barksdale SL5 Submersible Level Transducer is engineered for precise and reliable liquid level measurement in challenging environments. Built with a durable 316L stainless steel housing, this transducer is designed for continuous submersion in a wide range of liquids, including water, oils, and other compatible fluids. Featuring a 4–20 mA output signal and exceptional accuracy of ±0.25% full scale, the SL5 delivers stable and repeatable readings for applications such as groundwater monitoring, wastewater management, and tank level control. Its IP68-rated construction ensures long-term resistance to corrosion and moisture, while the compact design allows for installation in narrow wells or tanks. Combining rugged performance with high precision, the Barksdale SL5 is an ideal solution for demanding industrial and environmental level measurement needs.

Features

SL5 Submersible Level Transducer Features

  • Allows for VFD and on/off pump control integration
  • Narrow .75” diameter to fit in 1” schedule 120 and schedule 80 PVC to help reduce commissioning costs
  • Vent tube (optional), reducing risk of water intrusion damage
  • Removable pressure port cone to remove debris and clogs
  • Removable Cable
  • 316L construction with poly jacketed cable
  • Manufactured in the USA
  • Nose-cone size (mass) can be modified allowing for flexibility for different specific gravities/fluids
  • Smoothly rounded nose cone with short 6.5” housing length to prevent sticking on PVC pipe connections during installation 

Specifications

SL5 Submersible Level Transducer Specifications

SpecificationDescription
Supply8–33 VDC
Output4 to 20 mA, loop powered
Pressure Range0 to 500 psi (1,150 ft [350 m])
Operating Temperature-40 to 176 °F (-40 to 80 °C)
Compensated Temperature Range-4 to 176 °F (-20 to 80 °C)
Accuracy (BFSL @ 25°C)±0.25% FSO
Proof Pressure2X Typical (consult factory for specific pressure ranges)
Zero Offset±1% FSO
Span Offset±1% FSO
Long-Term Stability±0.2% FSO (per year, typical)
Response Time< 5 ms
Storage Temperature-40 to 212 °F (-40 to 100 °C)
Wetted Materials316L Stainless Steel, Polyurethane Cable Jacket3
Ingress ProtectionIP68
Reverse PolarityYes
Enclosure316L Stainless Steel
ComplianceREACH, RoHS, CE
WeightApproximately 0.8 lb (0.4 kg)

Applications

SL5 Submersible Level Transducer Applications

  • Groundwater level monitoring
  • Storage Tanks
  • Agricultural Irrigation Systems
  • Lift Stations/Wet Wells
  • Surface Water Monitoring
  • Environmental Monitoring/Remediation
  • Wastewater Tanks, Basins and Clarifiers
  • Landfill Leachate Monitoring
  • Water Flow Measurement
  • Oceanographic Depth Monitoring 

Q & A

Q&A Section with Expand/Collapse Icons

SL5 Submersible Level Transducer Q & A

+ What is the SL5 submersible level transmitter used for?
This transmitter is designed for monitoring liquid levels in underwater or submerged applications—such as groundwater wells, tanks, irrigation equipment, pumping stations, and other water-level monitoring applications.
+ What are the materials of construction and why are they important?
The unit utilizes 316L stainless steel construction (body) with a poly-jacketed cable. This provides excellent corrosion resistance, especially important for harsh or underwater environments.
+ What mounting or insertion size is required?
The device has a narrow ~0.75″ diameter designed to fit inside 1″ schedule 120 or schedule 80 PVC pipe, which can reduce installation cost and complexity.
+ Are there options for vented or unvented cables and why would one choose them?
Yes — there are vented vs unvented cable options. A vented cable helps equalize pressure and reduces risk of water intrusion, which can improve durability in submerged settings.
+ What level ranges or measurement depths are possible?

The transmitter line supports measuring ranges from shallow depths up to 200 m (for some versions) per specs.

Downloads

Download Barksdale SL5 Submersible Level Transducer Datasheet

Contact us at (855) 737-4714 to learn more or fill out our online form.

 
You were tireless in your support and it will not be forgotten!
 
When we needed technical assistance and application support, Valin was there for us. Their knowledgeable engineers saved us an invaluable amount of time, helping us get up and running quickly. We are very happy with their services.