Light Meter

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TES-137

Luminance Meter

Product Features
  • Dual Display, 4-digit LCD reading.
  • Spectral Sensitivity close to CIE photopic Curve.
  • Measuring Levels Ranging 0.001 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.
  • Data Hold function.
  • Data memory and read function.
  • Data logger function.
  • USB Interface.
Luminance Meter

   

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 = 3.426 cd/m2)

Measuring Angle

2°

Overrange Display

OL is displayed

Resolution

0.001 cd/m2, 0.001 fL

Accuracy

±3% rdg ±5dgt (Calibrated to standard
 incandescent lamp, 2856
Κ, at 25/77)

CIE Photopic f ’1

6%

Temperature Characteristics

±0.1%/

Measuring Rate

Approximately 5 time/sec

Photosensor

Silicon photodiodes

Data Memory Capacity

200 sets. (Direct reading from LCD display)

Data Logger Capacity

microSD CARD 4GB

Operating / Storage Conditions

0 to 50 <80% RH
 -10
to 60 <70%RH

Power Source

6 pcs 1.5V AAA size Battery

Battery Life (typical)

50 hours

Photosensor Lead Length

90 cm (approx.)

Photosensor Dimensions

40f×158(L)mm

Dimension

150(L) × 72(W) × 35(H)mm

Weight

Meter: 235g,  Photosensor: 210g

Accessories

Carrying case, Instruction manual, Battery,
 CD software, Micro-USB cable.

 

 

q Luminance measurement of LCDs, CRTs, LEDs, etc.

 

q Luminance measurement of street lighting, tunnel lighting, etc.

 

q Measurement of airport lighting facilities.

 

q Transmittance measurement for LCD polarizing plates and various filters.

 

q Measurement of medical lighting.

 

q Illuminance irregularities of automobile license plates.

q Luminance measurement of various lighting facilities, etc.