CLS 01 Industrial Capacitive Level Switch

Capacitance Level Switch Features

• Potential-free relay switch output

• Simple, low-cost & highly reliable design

• IP67 weatherproof electronic protection

• Trouble-free operation for conductive & non-conductive liquids, slurries

• Suitable for tanks, vessels & open sumps

Description

Electronet Series CLS-01 are capacitance-type level switches designed for accurate point-level sensing.
The vessel wall and probe act as two electrodes forming a capacitor. For non-conductive vessels, a coaxial probe is used.
The capacitance varies based on the dielectric constant of the material surrounding the probe—air has a value of 1, while liquids have higher values.
As material level changes, the capacitance changes accordingly, triggering a switching output at the preset point.
This makes CLS-01 ideal for reliable level detection in industrial applications.

Technical Specifications Probe Specifications

• Probe Length: As required (Rigid type up to 3000 mm)

• Probe Diameter: 15 mm to 25 mm

• Accuracy: ±5 mm w.r.t. set point

• Repeatability: ±1% of full probe length

• Switch Differential: Fixed ±10 mm

• Probe Type: Single Rod / Coaxial / Flexible

• Process Temperature: Up to 100°C

• Process Pressure: Up to 10 kg/cm²

Material of Construction

• Probe: SS316 / SS316L

• Electrode Insulation: PTFE

• Electronics Enclosure: SS-304

• Seals / Gaskets: EPDM / PEEK

Electrical

• Output: Potential-free relay contact

• Power Supply: 24V DC (±10%)

• Power Consumption: < 6 VA

• Response Time: < 1 second

• Temperature Coefficient: ±0.01% per °C

Enclosure & Protection

• Protection Class: IP65 or higher (IEC-60529)

• Electrical Connection:

  • M20 × 1.5 cable entry

  • DIN 43650 connector

Process Connection Options

1. 1" BSP (M)

2. 1½" BSP (M)

3. 2" PVC Flanged

4. 2" SS316 Flanged

5. 50 NB SS316 Tri-Clover

6. M27 × 1.5 (M)

7. Other options on request

Mounting

• Tank mounting

• Open sump mounting

Ambient Conditions

• Temperature: 0 to 75°C

• Humidity: 0 to 98% non-condensing @ 35°C