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part cleanliness

Contact-free cleanliness inspection of parts’ surfaces

The hand-held measuring device SITA CleanoSpector is highly suited for cleanliness inspection of parts to assure product quality as well as follow-up processes such as adhesive bonding, coating, welding, hardening and bonding.

Unwanted, filmic contamination such as oils, greases, cooling lubricants and release agents are measured by determining the fluorescence intensity.

The SITA CleanoSpector is easy to use and optimal for quality assurance directly in the manufacturing process.


Mobile and robust device for flexible use at the process and in the laboratory

Intuitive operation: simple and fast operation at the push of one button

Device with easy to handle sensor head and display unit enables measurment with a small contact area as well as different application possibilities

Check and adjustment with calibration standards




Fluorescence intensity in RFU

Fields of application

Cleanliness inspection prior to gluing, painting, coating, welding, hardening, bonding …

Coating thickness inspection oil for rust prevention, primer application before gluing


Detection of oil, grease, cooling lubricant, parting agents, …

on parts and components made of metal, ceramics and glass (limited suitability for plastics)


Contact free, non-destructive, in-line capable, thickness sensitive

Measurement monitoring

SITA Fluorescence standards (standard delivery and option)


Automotive, machine construction, mechanical engineering, medical engineering, electrical engineering, surface engineering, air and space …


For 10 years the SITA CleanoSpector is used successfully and worldwide in various applications and industries:

Cleanliness inspection of metal parts after machining

Inspection of functional surfaces after selective cleaning
(laser cleaning, ultra-fine plasma cleaning, CO2 snow blasting, …)
Inspection for residues of release agent on aluminium die-cast parts prior to adhesive bonding
Monitoring the cleanliness of metal parts before laser welding
Inspection for filmic contamination on parts in medical- or vacuum technlogy
Detecting residual agents and encapsulation material on bond pads before bonding
Surface inspection on electrical contacts after stripping of isolation material

Inspection for sufficient layer thickness when applying corrosion protection oils or when
applying a primer prior to adhesive bonding

We are pleased to advice and individually support you with your application.

    Measuring principle

    The measuring method uses the characteristic of organic substances to fluoresce. UV light is focused and radiated onto the surface. The contamination fluoresces. The intensity of the fluores-cence increases with the layer thickness of the contamination. The intensity is measured in RFU: Relative Fluorescence Unit.

    The lower the measuring values in RFU, the cleaner the surface.

    Please click here for further information.


    Technical data

    Fluorescence intensity
    Measuring range

    0...2,000 RFU (Relative Fluorescence Unit)

    Max. measuring deviation
    0.5 % of measuring range
    0.1 RFU
    Excitation 365 nm, max. 150 mW
    Detection* 460 nm
    Measuring point* D=1 mm
    Measuring distance* 4.7 mm
    * standard values
    Measuring range
    0...100 %
    0.1 %
    Layer thickness
    Measuring range user-defined
    Power supply
    Li-Ion-battery 3.6 V/1,950 mAh, min. 8 h operating hours
    Mains adapter / USB 100...240 V / 5 V
    Power consumption 2.5 W max.
    General data
    USB-interface Data transfer
    LCD, illuminated
    Measuring profiles 254
    8,000 measuring values per profile
    Dimensions (HxWxD)


    Hand-held device: 129x82x48 mm
    Sensor head: 95x50x30 mm
    Weight (device) 530 g


    The optional Windows-Software SITA-ProcessLog allows an easy control of all functions of the SITA CleanoSpector with the PC.

    Guided part inspection and graphical display of measuring points on part surfaces
    Documentation and evaluation of the part cleanliness
    Administration and analysis of saved measuring values
    Quick and easy preparation of test reports
    Controlling the measurement via PC

    Simple generation and administration of measuring profiles



    Individual accessories for contact-free cleanliness measurment, spacers for various part geometries as well as accessories for device checking and cleaning the sensor optics:

    Accessories fluorescence brochure


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    A business unit of SITA Messtechnik GmbH.

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