Whiteness Meter Light Leucometer 0~120 Range Handheld Portable Digital with Aluminium Case for Paint Paper Powder

• Range: 0-120
• Resolution: 0.1
• Illumination Condition: 45/0
• Illuminant: LED 457nm
• Whiteness Formula: Blue Light Whiteness Wb=R457
• Origin: China
• Model NO.: WM-206

Product Description

Applications:
Whiteness Meter is mainly used to directly measure the whiteness value of object or powder with flat surface. 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.

Principle:
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
Features:
* 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.
* Use RS-232 data output to connect with PC.
* Provide Bluetooth data output choice.
Specifications:

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	0~40ºC
	Humidity	<85 %RH
Power Supply		Lithium battery
Size	Main Unit	140x45x75 mm
Weight		305 g (Including Batteries)

Standard Accessories :

 1. Main Unit

 2.AC Adaptor

 3. Standard White Board 

 4. Optical Cleaning Cotton Cloth

 5. Carrying Case

 6. Operation Manual

Optional Accessories:

 1. Constant Pressure Powder Forming Apparatus 
 2. USB, RS-232C data cable with software 
 3. Bluetooth data out put with software
Products details: