WHITENESS meters 
Feature:
The WTM series whiteness degree instrument with the digital display is mainly applicable for the measurement of the whiteness degree on the surface of the object or the powder in the white color and the color close to white. The whiteness degree can be accurately educed that is consistent with the visual degree. The opacity degree of the paper can also be accurately measured.
This instrument can be widely applied for the measurement of the whiteness degree of the objects like textile & printing & dying, oil paint & dope, chemical construction material, paper & paper plate, plastic product, white cement, ceramics, porcelain enamel, porcelain clay, French chalk, starch, flour, salt, wash, and cosmetics, etc.
                                    
PORTABLE WHITENESS  METER                
Order Number:
WTM-1: ISO Blue Light WB=R457
WTM-1X: ISO Blue Light WB=R457; Fluorescent whiteness; Opacity

Product Characteristics:
1. AC & DC power supply, low power consumption, cabinet and handsome contour design, facilitating field and lab use
2. Configured with auto power-off function ad low power dissipation circuit, able to effectively prolong service life of battery
3. Adopting big-screen highly transparent LCD display, with comfortable reading, and free of ill influence from sunlight
4. The simple operation, and can accurately measure the opacity degree of the paper
5. Adopt the standard white plate rated by the central government to convey the standard value, and the measurement is accurate and reliable
6. Configured with output port of measured values, possible to connect with recording meter

Specifications:
Measuring Range: 0~199
Measuring Condition: 45/0
Resolution: 0.1
Measuring Hole Diameter: 15
Zero Drift: 0.1
Basic Error: 1
Repeatability: 0.2
External Dimension: 235*75*65mm
Power Supply: DC 1.5V, 5 AA alkaline dry cells; AC 220V/50Hz DC7.5V 0.2A power supply adapter

                         
PORTABLE WHITENESS  METER WTM-8 (Optional powder sampler model WTM-8P)      
Features:
WTM-8 is R457 blue whiteness digital portable whiteness meter, widely used in measuring the whiteness of textile, paint, chemicals, building materials, paper, cardboard, plastic, white cement, ceramics, enamel, porcelain clay, talc, starch, flour, salt, detergents, cosmetics and other objects.

Product Characteristics:
1. Ultra compact design can be in your pocket, more portable and on-site measurements, is currently the smallest and lightest whiteness meter.
2. The light correction system has revolutionized the portable whiteness meter can not measure the fluorescence whiteness market situation, can be comparable with the desktop.
3. Without zero calibration, easy to operate.
4. Super-power design, using a 5 batteries (rechargeable batteries or alkaline batteries can be), you can operate. A new battery can be used continuously for more than 50 hours, about ten thousand data can be measured.
5. Exceptional moisture technology lets you ease of use in a variety of harsh environments.
6. No waiting time, numerically stable, drift-free, for quick measurements.
7. Long-life light source, without replacement.
8. National calibration transfer standard whiteboard value, accurate and reliable.
9. Optional powder pressure sampler for accurate measurement of powder products.

Specifications:
Projection angle: 45/0
Measuring range: 0 ~ 199.9Gs
Whiteness said: R457 blue whiteness
Light source: D65 light source
Repeatability: 0.2
Power: 1.5vAA
Window size: 12 × 26mm
Dimension: 114 × 32 × 64mm
Weight: 300g

Powder Sampler WTM-8P

 
BENCH WHITENESS METER                           
Order Number:
WTM-2: ISO Blue Light WB=R457; Opacity
WTM-2X: ISO Blue Light WB=R457; Fluorescent whiteness; Opacity

Product Characteristics:
1. Adopt the quality imported & original components, with the high-efficiency & low-spoilage circuit, and with the good reliability
2. The design with the reliable active platform, can effectively prevent the phenomenon of the light leak in the measurement hole
3. Adopt the standard white plate rated by the central government to convey the standard value, and the measurement is accurate and reliable

Specifications:
1. Measuring Range: 0~199
2. Measuring Condition: 45/0
3. Illuminant: D65
4. Display system: LCD monitor
5. Minimum Readout: 0.1
6. Measuring Hole Diameter: 30
7. Zero Drift: 0.1
8. Basic Error: 1
9. Repeatability: 0.2
10. Power Supply: AC 220V/50Hz,35W
11. External Dimension: 325*265*280mm

 
BENCH WHITENESS METER             
Order Number:
WTM-3: ISO Blue Light WB=R457

Product Characteristics:
1. Adopt the quality imported & original components, with the high-efficiency & low-spoilage circuit, and with the good reliability
2. The configuration with the high-automatic & multi-function microcomputer, equipped with the RS232 serial communication interface to connect the printer.
3. The outstanding color-measurement performance is very accurate. Adopt the CAD, and the overall spectrum characteristics of the instrument comply with the responding curve of the CIE standard observer, and can accurately obtain the ISO whiteness degree.
4. The imbedded clock memory & storage system can store the measurement & correction data in real time, and can store and transfer 20 groups of the measurement data for long time, and can be used for the historic reference.
5. The quick automatic correction, with the prompt of the self-diagnosis information, rapid and stable response, reliable maintenance-free operation

Specifications:
1. Measuring Range: 0~120
2. Measuring Condition: 45/0, Illuminant: D65
3. Standard Observe: 10˚ field
4. Display: LCD monitor
5. Minimum Readout: 0.1
6. Measuring Hole Diameter: 30
7. Zero Drift: 0.1
8. Basic Error: 1
9. Repeatability: 0.2
10. Power Supply: AC 220V/50Hz,35W
11. External Dimension: 325*265*280mm

 
BENCH WHITENESS METER             
Product Characteristics:
1. Adopt the quality imported & original components, with the high-efficiency & low-spoilage circuit, and with the good reliability
2. The configuration with the high-automatic & multi-function microcomputer, equipped with the RS232 serial communication interface to connect the printer.
3. The outstanding color-measurement performance is very accurate. Adopt the CAD, and the overall spectrum characteristics of the instrument comply with the responding curve of the CIE standard observer, and can accurately obtain the ISO whiteness degree.
4. The imbedded clock memory & storage system can store the measurement & correction data in real time, and can store and transfer 20 groups of the measurement data for long time, and can be used for the historic reference.
5. The quick automatic correction, with the prompt of the self-diagnosis information, rapid and stable response, reliable maintenance-free operation

Specifications:

Model WTM-5 WTM-6 WTM-7
Whiteness ISO BLUE LIGHT WB=R457; Opacity

ISO Blue Light WB=R457; Fluorescent whiteness; Opacity

Measuring Condition

D/0

Measuring Range 0~120 0~150
Resolution 0.01
Illuminant D65
Basic Error ≤±1
Repeatability 0.2
Zero Drift ≤±0.1
External Dimension 310*280*280mm