Product Description

The whiteness meter is mainly used to directly measure the whiteness value of objects or powders with flat surfaces. Can be widely used in textile printing and dyeing, paint, chemical building materials, paper and cardboard, plastic products, white

cement, ceramics, enamel, talc, starch, flour, salt, detergent, cosmetics and other substances whiteness measurement.

Product Features

* It is composed of light source, optical system, detection system, data processing and display system. The whiteness

calculation formula of this instrument is blue light whiteness R457.

* Define the whiteness value of an ideal surface with a diffuse reflectance ratio of 1 across the visible spectral range as 100, and the whiteness of a black surface with a spectral reflectance factor of 0 as 0.

*Diffuse reflection is the reflection of light projected on a rough surface in

all directions. When a beam of parallel incident light is emitted to the rough surface, the surface will reflect the

light in all directions, so although the incoming rays are parallel to each other, because the normal direction of

each point is inconsistent, causing the reflected light to reflect irregularly in different directions, this reflection

is called "diffuse reflection" or "diffuse.Shoot ".

* USB, RS-232C data line output and PC connection, data collection.

* There is also a Bluetooth Bluetooth data output option.

Operational Principle

The Illuminant 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 digital display.

Product Parameters

Measuring Range	Whiteness: 0~100 Reflectance: 0~100
Resolution	0.1
Illumination Condition	45/0
Illuminant	LED 457 nm
Whiteness Formula	Blue Light Whiteness WB=R457
Measuring Aperture	11x18 mm Rectangle
Zero Drift	≤0.1
Stability of Display	≤0.5
Repeatability	≤0.1
Operating Condition	Temperature: 0~40 ℃ Humidity: <85 %RH
Power Supply	Lithium Battery
Size	140x44x75 mm
Weight	305 g (Not including batteries)

Product Accessories

Standard Accessories	Main Unit
	Standard Board
	Optical Cleaning Cotton Cloth
	AC Adaptor
Optional Accessories	Constant Pressure Powder Forming Apparatus
	USB/RS-232 data output
	Bluetooth data output

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MANUAL

Buying Guide

When you choose the model number of Amittari instrument, the default is standard delivery. If you need other optional accessories, please tell our customer -service worker.

The following three items are basic optional accessories choices

Standard Accessories+USB data output

Standard Accessories+Bluetooth data output

Bluetooth Accessories

Amittari instruments generally can be supplied with Bluetooth™ data output function ( except few instruments ) . As Bluetooth™ data output is included in optional accessories, not standard delivery,it needs to be indicated when choose.10 meters to 100 meters distance can be chosen.Please kindly contact with the customer-service worker if you need Bluetooth™ data output.