SJE-Rhombus SES Controls Tank Alert Alarms

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C-Level™ Sensor

Innovative Floatless Technology

The innovative C-Level™ sensor provides continuous level monitoring in tank applications.

The simple and accurate C-Level Sensor converts the water pressure in a tank into a low voltage electrical signal that is read by a variety of level monitoring products manufactured exclusively by SJE-Rhombus. This innovative technology provides for continuous level monitoring for wastewater tank applications, confined space applications and systems with a high grease content.

C-Level­™ Sensor Features:

  • Operates on low voltage
  • Compact, non-moving design
  • One sensor replaces up to four floats
  • Easy to install
  • Available in cable lengths up to 300 ft. (91.44 m)
  • Excellent alternative to mercury floats

C-Level Sensor Models

  • CL40 - sensing range up to 40 inches (101.6 cm) for smaller tank applications
  • CL100 - sensing range up to 100 inches (254 cm) for larger tank applications

US Patent No. 8,567,242; 8,336,385; 8,650,949.


C-Level™ Sensor

Specifications for C-Level™ Sensor:

Input Power: 12 VDC 100 mA max.
Output: Variable Frequency Signal

20 Gauge Cable, 300 feet (91 meters) maximum spliced length
NOTE: Cable splicing permitted only if done in dry water proof enclosure and shielded wires are used.

Sensor Length: 5.0 inches (12.7 cm)
Sensor Diameter: 2.0 inches (5 cm)
Mounting: Stainless steel cable clamp on sensor and vent housing

Fluid Compatibility's: water, sewage
Maximum Submersion Depth Sensor: 10 ft. water (3 m water)
Maximum Environment Temperature: 120oF (50oC) wet or dry
Sensor Zero Point: Approximately 2 inches from bottom of sensor
Recommended Minimum Operation Level: 3 inches water measured from sensor zero point
Repeatability: +/- 5% full scale
Range: 40 inch or 100 inch (depending on model)

Sensor and Vent Housing
Material: PVC
Color: Black

Isolation Bladder
Bellow design to increase surface area and reduce effect of temperature change
Oil filled to isolate sensor from sewage or corrosive environment

Vent Tubing
Material: PVC
Electrical cable ran inside vent tube to increase kink resistance of tube preventing plugging of vent

Breathable membrane which stops water intrusion

Electric Cable
Jacket Type: Type CM 3 wire 20AWG with Shield
Jacket Material: PVC

US Patent No. 8,567,242; 8,336,385; 8,650,949.


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