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Whiteness Meter LWM-A11

Whiteness Meter LWM-A11

Whiteness Meter LWM-A11 offers an incidence angle of 45/0, capturing both color and surface appearance for visually accurate whiteness readings. It has a moisture-resistant design for reliable operation in humid or damp environments. The system applies a blue-light whiteness formula to accurately measure brightness with consistent alignment. Our whiteness tester features a long-lasting light source, ensuring consistent measurement accuracy over the device’s operational lifetime.

Whiteness Meter LWM-A11_Front View
Whiteness Meter LWM-A11_Side View
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Incidence Angle 45/0
Measurement Range 0 to199.9
Whiteness Formula Whiteness of Blue Light
Light Source D65
Repeatability 0.2
Power Supply 1.5V AA
Weight 300 g
  • Fluorescent Whiteness Measurement

  • Calibrated White Board

  • Quick Measurement Cycles

  • Pocket-Sized Portability

  • Low Power Consumption

 

Whiteness Meter LWM-A11 quantifies a surface or powder’s whiteness by measuring blue-light reflectance. It plays a key role in ceramics, chemical material, printing inks, and dyeing industries for ensuring uniform whiteness.

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Models of Paper Testing Instruments

Labtron Paper Testing Instruments requires air supply for automatic clamping, ensuring smooth and secure operation. These provide real-time pressure curve displays, allowing users to monitor pressure changes instantly. Their over-range reset function protects the sensor by automatically adjusting it in case of excessive readings. They measure ink absorption values, useful for quality control in printing processes. Our paper testing instruments measure WH Hunter whiteness, YI yellowness, and CIE whiteness for precise color and whiteness evaluations for various applications.

Vertical Tensile Tester LVTT-C10

Vertical Tensile Tester LVTT-C10

  • Maximum Measuring Range : 1KN
  • Control Method : Full computer control mode, powerful software
  • Unit of Force : N, kN, gf, kgf, lbf, kP, tf(SI), tf (long)...
  • Unit of Length : Mm, cm, Inch, m, km, um..
Mullen Burst Tester LMBT-A10

Mullen Burst Tester LMBT-A10

  • Measuring Range : 50 to 1600 kPa
  • Indicating Accuracy : ± 0.5%
  • Working Environment : 10 to 35℃, Humidity ≤ 85%
  • Resolution : 0.1
Coefficient of friction tester TP-D10

Coefficient of friction tester TP-D10

  • Measuring Range : 0 to 5 N
  • Slider Weight : 200 g ± 2 g
  • Resolution : 0.001 N
  • Test Speed : 10 to 200 mm/min
Tensile Stiffness Tester TP-B10
Tensile Stiffness Tester TP-B10
  • Sample (size) length : 38×70 mm
  • Measuring range : (1-500) mN.m (divided into 7 small ranges)
  • Indication error : 0.02
  • Test speed : (200° ± 20°)/ min
Coefficient Of Friction Tester LCOFT-A10
Coefficient Of Friction Tester LCOFT-A10
  • Force Measuring Range : 0 to 2 N (customizable)
  • Accuracy : 0.5 level
  • Sample Thickness : Up to 2 mm (customizable)
  • Coefficient Measurement Range : 0.001 to 0.999
COBB sample cutter TP-C30

COBB sample cutter TP-C30

  • Sample diameter : 125 mm
  • Sample error : ± 0.2 mm
  • Sample Thickness : 0.1 to 1.0 mm
  • Dimension : 240×288×435 mm
Carton compression tester TP-I11

Carton compression tester TP-I11

  • Measuring range : 1 to 50 kN
  • Indication error : < ± 1%
  • Platen Size : 800×800 mm/ 1000×1000 mm/ 1200×1200 mm/ 1500×1500 mm (customized)
  • Operating stroke : 800 mm/ 1000 mm/ 1200 mm/ 1500 mm (customized)
Pulp beating (refining) freeness tester TP-C10

Pulp beating (refining) freeness tester TP-C10

  • Measurement range : 0 to 100° SR
  • Sealed testing speed : 100 ± 10 mm/s
  • Volume of distilled water : 1000 ± 5 ml
  • Draining time : 149 ± 1 s

Whiteness Meter LWM-A11 FAQ's
  • Yes. Labtron’s whiteness meter LWM-A11 double as spectrophotometers, measuring brightness (reflectance at approximately 457?nm), opacity, transparency, and chromaticity. Advanced units also derive absorption/scattering coefficients and quantify OBA content per ISO 15397. Portable models support data logging and pass/fail functionality, enabling more comprehensive quality control in paper, textile, plastic, food, and construction material industries.

  • Labtron supplies advanced whiteness meter LWM-A11.Measurement accuracy can be influenced by surface characteristics—glossy or uneven textures reflect light unpredictably—and ambient light interference. Sample preparation, including cleanliness and orientation, can also introduce variation. Instrument drift due to lamp aging or sphere discoloration can cause baseline shifts. UV-filter control is vital when measuring fluorescent materials. To ensure consistent results, use controlled environments, clean optics, and adhere strictly to standard measurement geometries and protocols.

  • Labtron supplies advanced whiteness meter LWM-A11.Selecting an appropriate whiteness meter depends on your application. Choose a model designed for your material type—paper, textiles, plastics, or powders. Confirm support for relevant standards (ISO 2470/2469, ASTM E313, CIE). For fluorescent materials, ensure UV filter control. Match instrument geometry (45°/0° or integrating sphere) to sample type. Consider whether a portable handheld device or benchtop system suits your workflow. Review features like data storage, connectivity, connectivity (USB/Bluetooth), and durability to ensure a tool that aligns with your quality-control needs.

  • Yes, Labtron supplies advanced whiteness meter LWM-A11.These systems often feature conveyor integration or robotic positioning and provide real-time feedback for process control. Inline meters typically share core measurement principles with benchtop models but are ruggedized and designed for continuous operation. They include automated calibration routines, UV compensation, and centralized data logging to maintain quality without manual intervention—making them ideal for large-scale manufacturing.

  • Labtron supplies advanced whiteness meter LWM-A11. For powders, starch, sugar, or granules, compaction into a tablet or insertion into a powder sample holder is required before measurement. Ensure homogeneous particle size and consistent packing density to avoid air gaps and uneven surface reflection. Many instruments specify sample mass (e.g., ??5?g) and container dimensions to standardize readings. Thorough shaking and leveling of the powder improves repeatability, and cleaning the aperture after each measurement prevents residual interference

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Paper Testing Instruments:
Vertical Tensile Tester LVTT-C10, Mullen Burst Tester LMBT-A10, Coefficient of friction tester TP-D10, Tensile Stiffness Tester TP-B10, Coefficient Of Friction Tester LCOFT-A10, COBB sample cutter TP-C30, Carton compression tester TP-I11, Pulp beating (refining) freeness tester TP-C10, and more.

Catalogs : Laboratory Equipment Catalog, Analytical Equipment Catalog, Medical Equipment Catalog, Test Equipment Catalog, Petroleum Testing Catalog, Pharmaceutical Machinery Catalog, Security Systems Catalog, Lab Products Catalog.

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Email: info@labtron.com

WhatsApp: +44 73 4441 2688

Phone: +44 2080 043608

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Labtron Equipment Ltd., Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom

Email: info@labtron.com Whatsapp: +44 73 4441 2688 Phone: +44 2080 043608

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