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Capacitive proximity sensors - CQF is part of SICK's industrial capacitive proximity sensors portfolio. The CQF family is designed for professional machine, production and process environments where dependable sensing, safety monitoring, measurement or motion feedback is required. This product entry is written as customer-facing ecommerce content and keeps the technical identity tied to the SICK family documentation rather than introducing unsupported specifications.
The core function of the CQF family is to provide a defined, repeatable signal to the automation system. The published source describes the product around its operating principle and configuration structure, while the technical table below records the values that can be stated directly from the SICK documentation. Where a parameter is configuration-dependent, that dependency is retained rather than replaced with an assumed single value.
The documented application strengths of this family include “Capacitive sensing for water-based liquid level detection” “Sensing range of 0.5 mm ... 6 mm” “Flush and non-flush installation options” “10 ... 30 V DC supply with PNP NO output”. These characteristics make the range relevant where repeatable machine signals, controlled sensing, dependable safeguarding, process measurement or motion feedback are required.
The SICK documentation publishes Sensing range Sn: 0.5 mm ... 6 mm; Switching frequency: 10 Hz; Supply voltage: 10 ... 30 V DC; Ripple: ≤10%; Connection: 4-wire cable, 2 m. These values define the engineering envelope described by the source material and should be read together with the selected ordering code where the family contains multiple configurations.
The SICK documentation publishes Enclosure rating: IP67 / IP68 / IP69K; Conductivity: Up to 50 mS/cm; Container diameter: Min. 8 mm; Container thickness, plastic: 0.5 ... 6 mm; Container thickness, glass: 0.5 ... 4 mm. These values define the engineering envelope described by the source material and should be read together with the selected ordering code where the family contains multiple configurations.
The published SICK configuration defines the electrical and communication architecture for CQF. Depending on the documented type, this can include the stated supply, switching outputs, analog signals, safety outputs, industrial communications, connectors or other interfaces. The specification table keeps those source values explicit so they can be checked during engineering and purchasing.
The SICK documentation publishes Housing dimensions: 16 mm x 34 mm x 8 mm. These values define the engineering envelope described by the source material and should be read together with the selected ordering code where the family contains multiple configurations.
The family is intended for industrial installation, with the source documentation defining its housing, enclosure, temperature, mechanical and connection characteristics where these are published. No additional material or environmental ratings have been added where SICK does not publish them for the family row.
For system integration, selection should follow the required sensing or safety range, output behaviour, connection, mounting arrangement and environmental conditions. The SICK documentation is structured around ordering variants, so the exact part number should be checked before purchase or installation. This is particularly important where the family offers multiple electrical interfaces, optical arrangements, resolutions, safety functions or housing options.
Commissioning should use the SICK installation and configuration documentation for the selected ordering code. Confirm mechanical clearances, electrical compatibility, required accessories, safety architecture and application-specific parameters before putting the device into service. For safety-related products, the final system design must follow the applicable SICK documentation and the relevant safety standards for the complete machine.
The published SICK application scope for this family includes Liquid level detection, Small containers, Machine and plant automation. The appropriate use depends on the actual machine architecture, target object or medium, required operating range and selected variant. The family is particularly suited to engineering-led procurement where exact product configuration matters.
Use the official SICK ordering configuration to select the exact version required for the installation. The technical table below is the source-backed selection reference for this ecommerce listing; it deliberately avoids filling unsupported values with estimates or generic industry assumptions.
| Technical parameter | Published SICK value |
|---|---|
| Sensing range Sn | 0.5 mm ... 6 mm |
| Installation | Flush or non-flush |
| Switching frequency | 10 Hz |
| Supply voltage | 10 ... 30 V DC |
| Ripple | ≤10% |
| Output | PNP, NO |
| Connection | 4-wire cable, 2 m |
| Enclosure rating | IP67 / IP68 / IP69K |
| Detection medium | Water-based liquids |
| Conductivity | Up to 50 mS/cm |
| Container diameter | Min. 8 mm |
| Container thickness, plastic | 0.5 ... 6 mm |
| Container thickness, glass | 0.5 ... 4 mm |
| Housing dimensions | 16 mm x 34 mm x 8 mm |
Values above are taken from the official SICK source listed in the Source_Map sheet. Where the SICK family contains multiple ordering variants, the published range or dependency is retained exactly rather than generalized.
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