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Powder Whiteness Meter

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Powder Whiteness Meter Specification

Temperature
10C ~ 40C

Accuracy
0.5

Humidity
85% RH

Frequency
50 Hz

Equipment Type
Digital Powder Whiteness Meter

Display Type
Digital LED display

Response Time
5 seconds

Resolution
0.1

Operating Voltage
AC 220V 10%, 50 Hz

Specimen Size
25 mm diameter cup, 10 mm thickness

Interface Type
RS232 Serial Port

Number of Specimens
1

Mounting Type
Table Top

Gas Pressure
No external gas required

Port Size
Standard

Application
Measurement of powder and granule whiteness

Test Range
0~120 (whiteness value)

Power Supply
AC 220V, 50 Hz

Features
Microprocessor based, quick response, digital display, robust design

Measuring Range
0-120

Automation Grade
Automatic

Usage
Whiteness measurement in powder technology

Capacity
Single sample

Machine Weight
6.5 kg

Test Speed
Standard

Test Width
50 mm

Test Stroke
Self-returning

Control Mode
Automatic

Illuminant
D65 standard light source

Operating Environment
No direct sunlight, vibration-free location

Calibration
Full automatic calibration with calibration plate

Photometric System
Integral sphere photometry

Reading Stability
0.2 (SD)

Standard Accessories
Power cord, spatula, calibration standard, instruction manual

About Powder Whiteness Meter

As an authorized dealer we are offering wide gamut of "Colour Appearance" test and measurement instruments for wide range of application.

The instrument consists of Light Source, Optical System, Detection System, Data Process and Display System. The Whiteness Calculation Formula of the instrument is blue light whiteness R457.

The light source of the instrument is long-life LED with 457nm, conforming to the light source requirement in the JJG 512-2002 National Metrological Whiteness Meter Verification Regulation. The measurement of the instrument adopts the principle of photoelectric effect. The diffuse reflectance Radiant Brightness Energy Value of the sample surface is receive by the optical cell. Then, the value is amplified by high-precision auto zeroing operation amplifier, inputted to the calibration circuit for energy calibration. Then, the whiteness value of the sample is directly shown on the display.

The optical path design is reasonable, simple. Adopt filter system with correction, the whiteness can be reflected quantitatively.
Use of high quality imported components.
No preheating after starting, measurements can be taken after simple calibration, easy to operate.
Able to memory 254 groups of measurement data.
Pass strict inspection and testing, the instrument conforms to the JJG 512-2002 Whiteness Meter Verification Regulation. Also conforms to GB3978, GB3979, GB7973, GB7974, ISO2470, GB8904.2, QB1840, GB2913, GB13025.2, GB1543, ISO2471, GB10339, GB5950, GB12911 and other standards.
Optional - Powder Forming Apparatus
Optional - RS-232 data output to connect
Optional - Bluetooth data output.

Specification

Range		0~120
Resolution		0.1
Illumination condition		45/0
Illuminant		LED 457 nm
Whiteness Formula		Blue Light Whiteness WB=R457
Measuring Aperture		18x11 mm Rectangle
Zero Drift		0.1
Stability of Display		0.5
Repeatability of Measurement		0.1
Operating Condition	Temperature	0~40c
	Humidity	<85 %RH
Power Supply		Lithium Battery
Size		140x45x75 mm
Weight		305 g (Including Batteries)

Whiteness Meter is mainly used to directly measure the whiteness value of solid object or Powder with flat surface. It can be widely used in whiteness measurement of textile printing and dyeing, paint, chemical building materials, paper board, plastic products, white cement, ceramics, enamel, talc powder, starch, flour, salt, detergent, cosmetics and other substances.

Superior Accuracy and Stability

This powder whiteness meter offers exceptional accuracy (0.5) and reading stability (0.2 SD), making it ideal for precise whiteness measurement in demanding quality control settings. Its advanced integral sphere photometry and D65 light source minimize errors and deliver consistent results, ensuring product uniformity and reliability.

User-Friendly Operation and Maintenance

The device features automatic calibration using a supplied calibration plate, which streamlines setup and reduces the risk of operator error. With self-returning test stroke and automatic control mode, the meter facilitates ease of use, enhancing productivity in high-throughput laboratory or industrial environments.

Robust, Practical Design

Constructed for durability and ease of installation, the table-top design weighs just 6.5 kg and includes essential accessories such as a power cord, calibration standard, spatula, and instruction manual. Its digital LED display and microprocessor-based system provide fast, clear results within 5 seconds, supporting informed decision-making in quality assurance workflows.

FAQs of Powder Whiteness Meter:

Q: How does the Powder Whiteness Meter ensure accurate and stable results?

A: The meter employs an integral sphere photometric system with a D65 standard light source, offering consistent and reliable whiteness values. Reading stability is excellent ( 0.2 SD), and with automatic calibration using a calibration plate, measurement drift is minimized.

Q: What is the recommended environment for operating this Powder Whiteness Meter?

A: To achieve optimal performance, the meter should be used in a vibration-free area away from direct sunlight, with humidity levels 85% RH and ambient temperature between 10C and 40C.

Q: When should calibration be performed on this instrument?

A: Calibration is conveniently full automatic and should be performed at the start of each measurement session, using the included calibration standard plate to maintain accuracy.

Q: Where can the Powder Whiteness Meter be used?

A: This instrument is designed for laboratory or quality control environments in industries involving powders and granules, such as pharmaceuticals, food, and chemicals. Its table-top design is suitable for any stable bench or work surface.

Q: What is the process for measuring the whiteness of a sample?

A: Prepare a sample with a diameter of at least 25 mm and a maximum thickness of 10 mm. Place it in the sample cup, initiate the automatic measurement via the digital control, and the device will return the whiteness value digitally within five seconds.

Q: What benefits does the Powder Whiteness Meter offer for quality control?

A: The meter delivers quick, precise whiteness measurements with minimal operator intervention, supporting standardization and ensuring batch-to-batch consistency. Its robust design and user-friendly interface are ideal for routine industrial use.

Q: How is data output or connectivity managed in this device?

A: The device features an RS232 serial port for data transfer, facilitating integration with laboratory information management systems or external data recording devices, supporting efficient workflow and documentation.

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