Whiteness meter TP-A11

Whiteness meter TP-A11 is used to measure the whiteness of objects. Its compact, advanced circuit design ensures the accuracy and stability of measurement data. It measures ISO (R457) whiteness and fluorescence whitening of the materials. The whiteness meter is provided with light absorber to eliminate the influence of specular reflection of the sample.

Sample (size) length Diameter ≥30 mm, Thickness ≤ 40 mm
Sample width
Measuring range
Measurement mode
Stability
Accuracy
Tensile strength velocity
Tensile return velocity
Sample loading
Clamp air pressure
Repeatability
System D/0 lighting geometrical viewing conditions, diffuser diameter (d) 150mm, testing hole diameter 30mm
Light source D65 as illuminating source
Zero drift ≤ 0.1 %
Indication drift ≤ 0.1 %
Indication error ≤ 0.5 %
Test speed
Repeatability error ≤ 0.1 %
Mirror reflection error ≤ 0.1 %
Light measurement
Storage
Dimension (L*W*H) 360 × 264 × 400 mm
Net weight 20 kg
Power supply 220 V ± 10 %, 50 Hz
  • Stimulate D65 illuminator to illuminate
  • Adopted with D/0 lighting geometrical viewing conditions
  • Determination of brightness stimulation value
  • Determine the opacity
  • Determination of transparency
  • Determination of light scattering coefficient 'S' and optical absorption coefficient 'A'
  • Measuring ink absorption value
  • Equipped with RS232 interface, with PC connections for data communication
  • Use of large screen color touch LCD to view measurement, statistical data
  • User-friendly data operations
  • Power protection, No loss of data on Power off

Whiteness meter is widely used to measure whiteness in paperboard, textile printing & dyeing, paint, plastic products, ceramic, enamel, detergent, cosmetics.

Measurement range 5 to 500 N, 50 to 3000 N
Resolution 1 N
Accuracy ± 1 %
Variability ≤ 1 %
Sample size (L*B) 230×50 mm (can join short samples together)
Rub pressure 20 ± 0.2 N
Friction speed 43 times / min
Friction area (L*B) 155×50 mm
Measuring range A (1 to 6) J indicating error ± 0.05 J<br/> B (1 to 12) J indicating error ± 0.05 J<br/> C (1 to 24) J indicating error ± 0.05 J<br/> D (1 to 48) J indicating error ± 0.05 J<br/> The indicating errors w.r.t measurement range of 20 to 80 %
Frictional resistance <0.25 J
Pyramid dimension Three sides: 60×60×60 mm, height 25 ± 0.7 mm, Arris edge fillet radius 1.5 ± 0.1 mm
Dimension 800×470×840 mm
Capacity 10 -16000 mN
Resolution 0.1 mN
Tearing arm 104 ± 1 mm
Tearing angle 27.5° ± 5°
Measuring scope ( 1 to 9999) s, divided in to (1 to 15) s, (15 to 300) s, (300 to 9999) s, the automatic (no. more than 200 s)
Accuracy ±0.1 s within 300 s
Vacuum system volume (ml) Bigger volume: 380 ± 1<br/> Smaller volume: 38 ± 1
Contact pressure 100 ± 2 kPa
Capacity A: 20 to 500 J/m2 B: 500 to 1000 J/m2
Impact angle 90°
Unit Lb-ft/in2  J/m2
Error A: ± 1 J/m2 B: ± 2 J/m2
Measuring range 0 to 20 mm
Accuracy 0.01 mm
Gauge Analogue gauge display
Contact pressure (to create false weight) 20 ± 0.5 kPa
Sample (size) length Diameter ≥30 mm, Thickness ≤ 40 mm
Measurement mode Diffuse reflection factor Rx, Ry, Rz, stimulus value Y10, X10, Z10, chromaticity coordinates x10, y10, z10; lightness L *, chroma a * b *, chroma C * ab, hue angle h * ab, dominant wavelength λd, excitement purity Pe, color difference ΔE * ab, lightness difference ΔL *, chroma difference ΔC * ab, hue difference ΔH * ab, Hunter system L , A, b
Stability ≤ 0.1 within 30 min
Accuracy Chromaticity co-ordinate 0.0001
Sample width 15 mm
Sample maximum length 300 mm
Parallelism ≤ 0.1 mm
Dimension 240×520×70 mm
Measuring range 0 to 1000 ml/min
Test area 10 ± 0.02 cm2
Area differential pressure 1 ± 0.01 kPa
Inner diameter of grip ring 35.68 ± 0.05 mm
Measurement range 0 to 200 mm
Specimen size 15×250 mm
Division value 1 mm
Number of specimen holders 5
Measurement range 0 to 5600 kPa
Accuracy ± 0.5 % F.S.
Compression speed 170 ± 15 ml/min
Clamp pressure ≥ 690 kPa
Sample (size) length 180 mm (180, 150, 100, 90, 50 mm adjustable)
Sample width 15 mm
Measuring range 0 to 30, 0 to 100 N,0 to 300 N, 0 to 500 N, 0 to 1000 N
Accuracy ± 1 %
Measuring range 0 to 4 mm
Accuracy 0.01 or 0.001 mm
Gauge Analogue gauge display
Contact pressure (to create false weight) 100 ± 10 kPa
Sample (size) length 90 to 200 mm
Sample width 15 mm, 25 mm, 50mm
Measuring range 0 to 30, 0 to 100 N,0 to 300 N
Accuracy ± 1 %
Measuring range 0.001 to 9999
Stability A (absorbency of light) <0.003 within 3 mins
Linearity error <3.0 %
Repeatability error A (absorbency of light) <0.005
Salinity Measurement range 0.00 to 19.99 ms/cm
Measuring accuracy EC ± 2% full scale
Temperature Measurement range -5 to 50°C
Temperature accuracy ± 0.5°C
Measuring range 0.001 to 9999
Stability A (absorbency of light) <0.003 within 3 mins
Linearity error <3.0 %
Repeatability error A (absorbency of light) <0.005
Sample (size) length Diameter ≥30 mm, Thickness ≤ 40 mm
Measurement mode Diffuse reflection factor Rx, Ry, Rz, stimulus value Y10, X10, Z10, chromaticity coordinates x10, y10, z10; lightness L *, chroma a * b *, chroma C * ab, hue angle h * ab, dominant wavelength λd, excitement purity Pe, color difference ΔE * ab, lightness difference ΔL *, chroma difference ΔC * ab, hue difference ΔH * ab, Hunter system L , A, b
Stability ≤ 0.1 within 30 min
Accuracy Chromaticity co-ordinate 0.0001
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
Sample (size) length Diameter ≥30 mm, Thickness ≤ 40 mm
System D/0 lighting geometrical viewing conditions, diffuser diameter (d) 150mm, testing hole diameter 30mm
Light source D65 as illuminating source
Zero drift ≤ 0.1 %
Test angle 60°
Gloss aperture 2 × 3 mm
Measurement range 0 to 1000 GU
Repeatability 0.2 GU (0 to 100 GU), 0.2 % GU (100 to 1000 GU)
Test arm weight 2.5 N
Additional Loads 2.5 ± 0.1 N, 5 ± 0.1 N, 10 ± 0.1 N,
Idler 150 mm
Abrasion stroke 40 ± 0.2 M
Temperature control range Room temperature to -70 ℃ (room temperature ≤ 25 ℃)
Temperature accuracy ± 0.3 ℃
Impact speed 0℃ to -30℃ around 2.5 ℃/min </br> -30℃ to -40℃ around 2.5 ℃/min </br> -40℃ to -70℃ around 2.0 ℃/min</br>
Max dimension L × W × H 910 × 510 × 860 mm
Mixed capacity 0.5 to 1 kg, 2 to 3 kg, 5 to 7 kg
Temperature range RT to 300°C
Temperature control system PID control
Display LED display
Resolution 0.1 % O2
Measuring range 0 to 100 % O2
Precision ± 0.4 % O2
Response time < 10 S
Vacuum degree 0 to 90 KPa
Accuracy 1 % FS
Resolution 0.1 KPa
Vacuum chamber effective size 270 × 210 mm
The maximum temperature 300°C
Temperature fluctuation Within ± 0.5°C
Temperature uniformity Within ± 1°C
Rotate speed of the turntable 11 r/min to 12r/min, turntable dimension diameter: 285 mm