QiWei WSB-1Y and 3NH NR4520 compare

Model selection comparator If you have any questions, please click below Service	QiWei WSB-1Y Whiteness meter (portable fluorescent) 1980.0 RMB China Detail	3NH NR4520 Whiteness Tester 4500.0 RMB China Detail

Type

handheld

Whiteness

Blue light whiteness Fluorescent whitening amount

Fluorescent whitening amount

Measuring Range

0~200

Repeatability

≤0.3

Accuracy

0.1

Measurement aperture

f11 ~ 20mm

Measuring range

0~199.9

Whiteness formula

R457 Blue light whiteness, fluorescence whiteness F

light source

LED light source

Illumination conditions

45/045/0

45/0 (45 direction incidence /0 degree reception); in line with standard CIE No.15, GB/T 3978.

Illumination conditions

45/045/0

45/0 (45 direction incidence /0 degree reception); in line with standard CIE No.15, GB/T 3978.

Display

LCD liquid crystal display

TFT True Color 2.8inch @(16:9)

Measurement aperture

F15mm

Φ20mm platform measurement diameter (Φ10mm measurement diameter can be customized)

resolution

0.1

Zero drift

≤0.2/10min

Indication drift

≤0.3/3min

Sexual repeability

≤0.3

Within ΔR0.1 (after instrument preheating correction, the average value of 30 whiteboard measurements at intervals of 5s)

Operating Temperature

5~35℃

Relative Humidity

≤85% RH

Power

AC and DC dual purpose

Encasement

Portable Aluminum Encasement Box

Net Weight

1.5kg

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