Chroma meter ST520S measure of luminance/color temperature for LED light sources

Description

Chroma meter Light meter luminometer SENTRY ST520S measurement of luminance and color temperature for LED light sources
ST520/ST520S/ST522
ST520 is a chroma meter with precision measurement of luminance and color temperature for broad light sources. ST520S is a chroma meter with precision measurement of luminance and color temperature for LED light sources. ST522 is a chroma meter with precision measurement of luminance and color temperature for multiple light sources with selection function. Each of them meets CIE (International Commission on Illumination) photopic spectral response and the color temperature.
FEATURES
Precision instrument for light luminance and color coordinate.
Meet CIE (International Commission on Illumination) photopic spectral response.
Color temperature or Correlated color temperature.
Custom reference value of color difference mode.
Lux or foot-candle unit selection.
Magnetic mount.
SPECIFICATIONS
Model name
ST520
ST520S
ST522
Light Source
General Source
LED Source
Source Selectable
Measuring Function
Illuminance：Ev (lx or fcd)
Color Coordinate：(x, y) , (u', v') (CIE 1960)
Correlated Color Temperature：CT, ⊿uv
Color Difference：(⊿Ev,⊿x,⊿y) , (⊿Ev,⊿u',⊿v') ,
(⊿Ev,⊿u'v') , (One set of reference color)
Illuminance：Ev（lx or fcd）
Color Coordinate：（x, y）,（u', v'）（CIE 1960）
Correlated Color Temperature：CT, ⊿uv
Color Difference：（⊿Ev, ⊿x, ⊿y）,（⊿Ev, ⊿u', ⊿v'）,
（⊿Ev,⊿CT,⊿u'v'）（One set of reference color）
Measuring Range
Ev：0~80,000 lx (0~7,432 fcd)    CT：99,990 K Max.
Accuracy
(at 25°C/ 77°F, 60% RH)
Ev：± 5%(3,000 lx, standard illuminant A measured)
x, y：± 0.02(100 lx, RGB LED Light)
Ev：±（3%+2 Digital）（3,000 lx, standard illuminant A measured）
x, y：± 0.02 （100 lx, RGB LED Light）
CT：± 4 %
Resolution
Ev：1(0~9,999)，10(Over 10,000), lx ;  0.1(0.0~999.9)，1(Over 1,000), fcd ;
CT：1(0~9,999)，10(Over 10000), K ; x, y：0.001 ; u', v'：0.001
Response Time
Approx. 1 sec.
Temperature Drift
Ev：±（5%+2 Digital）（3,000 lx, standard illuminant A measured）
x, y：± 0.008（100 lx, RGB LED Light）
Humidity Drift
Ev：±（3%+2 Digital）（3,000 lx, standard illuminant A measured）
x, y：± 0.005（100 lx, RGB LED Light）
Operation Temperature
0°C to 50°C (32°F to 122°F)，Less than 80% RH
Store Temperature
-10°C to 60°C (14°F to 140°F)，Less than 85% RH
Weight
179g(6.3 oz.) without battery
Dimensions
Main Instrument：140x49x29 mm(5.5"x1.9"x1.1")      Sensor Probe：165x50x36mm(6.5"x2.0"x1.4")
Accessories
Instruction manual, Carrying case, Sleeve
INTERNATIONAL SHIPPING:
The package will be shipped by
DHL, FEDEX or EMS
. After we shipped the parcel,we'll fill in the tracking number.
Please write the correct address and telephone number when you make orders,so the courier can contact you when they deliver the parcel to you. thanks
CUSTOMS CLEARANCE
1.We always make lower amount on invoice, if you need one different, please leave us a message.
2.The buyer is responsible for any tax and/or duty charged by their country.
PAYMENT INFORMATION:
1.We can accept Paypal,T/T,Credit Cards and so on.
WARRANTY INFORMATION:
1.All the products have been checked and packed in good condition before dispatch.
2.All the products with one year warranty.
3.If you find any quality problems,please send it back within 3 days,and we'll send you a new one or refund you the payment after we get the returned one.
4.Buyers have to pay for the return cost and we will pay the cost for resend
5.All products returned should be in new conditions.
FEEDBACK:
1.A good feedback is very important for our store,if you feel satisfied with our products,please give us positive feedback.
2.Please contact us before leaving any negative or neutral feedback,We will work with you to solve any problems.