| |
TEK J1811 LumaColorTM Photometer
Features
- Interchangeable Pre-calibrated Heads
- Accurate Spectral and Cosine Corrections
- Metric and English Units User Selectable.
- Large LCD with Backlight
- Rugged
- Handheld
- Adaptable to Many Light Measurement Needs
- Battery Operated
- Highway illumination
- Luminaires and lamps
- Workstation illumination
- Lighting for safety
The J1811 is an illuminance head with readout in footcandles or lumens/m2
(lux). An integral cosine diffusor corrects the angular response to 180°
for an f2 of 3% or less.
Specifications
|
|
J1810
|
J1811
|
J1812
|
J1820
|
|
Measurement
|
Chromaticity, Luminance
|
Illuminance
|
Irradiance
|
Chromaticity, Luminance
|
|
Applications
|
Displays, Television
|
Highway lighting, Office lighting, Transportation
|
Lasers, IR LEDs, Research
|
Displays, Television
|
|
Ranges with J17
|
Usable with J18 only
|
0.001 to 5,000 footcandles
|
0.01 to 20,000 mW/m2
|
0.001 to 0.999 x,y and u',v'
|
|
|
|
0.001 to 5,000 footcandles
|
1 nW to 2 mW
|
0.3*1 to 300,000 candelas/m2
(Nit)
|
|
|
|
|
|
0.1*1 to 100,000 footlamberts
|
|
Ranges with J18
|
0.001 to 0.999 x,y and u',v'
|
0.01 to 5,000 lux (lm/m2)
|
0.001 to 2,000 mW/m2
|
Usable with J17 only
|
|
|
0.3 to 1,000 candelas/m2 (Nit)
|
0.001 to 500 footcandles
|
0.1 nW to 0.2 mW
|
|
|
|
0.1 to 300 footlamberts
|
|
|
|
|
Spectral Response
|
CIE Tristimulus
|
CIE Photopic
|
Flat
|
CIE Tristimulus
|
|
Spectral Accuracy
|
f1' = <
3% (DIN Class A)
|
f1' = <
3% (DIN Class A)
|
±8% 450 to 950 nm
|
f1' = <
3% (DIN Class A)
|
|
Accuracy
|
0.009 at D6500
|
5% ± 2 digits
|
5% ± 2 digits
|
0.018 at Illum A
|
|
Acceptance Angle
|
16°
|
180° (Cosine)
|
96° (Approx.)
|
16°
|
|
Other Features
|
Suction cup
|
Level and cover
|
Cover
|
Suction cup
|
|
Cable Length
|
3.5 ft.
|
6 ft.
|
6 ft.
|
3.5 ft.
|
|
|
MetricTest
Solutions
