TES-137, Luminance Meter
Features:
·       Dual Display, 4-digit LCD reading.
·       Spectral Sensitivity close to CIE photopic Curve.
·       Measuring Levels Ranging 0.01 to 1999k cd/m2, 0.001 to 580.0k fL, Autoranging 7 step.
·       Accurate and Instant response.
·       Luminance ratio A/B, deviation %A, different B-A and peak luminance measurements.
·       User calibration factor and color-correction functions.
·       Accumulation luminance measurement.
·       Max/Min/AVG function.
·       Backlit function.
·       Comparator function.
·       Auto power off function.
·       Data Hold function.
·       Data memory and read function.
·       Data logger function.
·       USB Interface.
Applications:
·       Luminance measurement of LCDs, CRTs, LEDs, etc.
·       Luminance measurement of street lighting, tunnel lighting, etc.
·       Measurement of airport lighting facilities.
·       Transmittance measurement for LCD polarizing plates and various filters.
·       Measurement of medical lighting.
·       Illuminance irregularities of automobile license plates.
·       Luminance measurement of various lighting facilities, etc.
Specifications:
Model	TES-137
Display	Dual display 4 digit LCD read out.
Measuring Range	9.999, 99.99, 999.9, 9.999k, 99.99k, 999.9k, 1999k cd/m2 9.999, 99.99, 999.9, 9.999k, 99.99k, 580.0k fL Auto ranging (7 step) (1 fL=3.462 cd/m2)
Measuring Angle	E2๐
Overrange Display	OL is displayed
Resolution	0.01 cd/m2, 0.001 fL
Accuracy	+/-3% rdg +/-5dgt (C brated to standard Incandescent lamp, 2856๐K at 25๐C/77๐F)
CIE Photopic f ๐1	≤ 6%
Temperature Characteristics	+/-0.1%/๐C
Measuring Rate	Approximately 5 time/sec
Photosensor	Silicon photodiodes
Data Memory Capacity	200 sets. (Direct reading from LCD display)
Data Logger Capacity	Micro SD CARD 4GB
Operating/ Storage Conditions	0๐C to 50๐C <80% RH -10๐C to 60๐C <70% RH
Power Source	6 pcs 1.5V AAA size Battery
Battery Life (typical)	50 hours
Photosensor Lead Length	90 cm (approx.)
Photosensor Dimensions	40 x 158 (L) mm
Dimension	150 (L) x 72 (W) x 35 (H) mm
Weight	Meter: 235g, Photosensor: 210g
Accessories	Carrying case, Instruction manual, Battery, CD software, USB cable.