产品描述:
Model: LM631A 照度计
Digital Light Meter
This instrument is a portable, easy-to-use, 3-1⁄2-digit, compact sized digital light meter designed for simple one-hand operation reading in lux or fc units.
Pressing the PEAK button for more than 2 seconds turns the backlight on and off.
There is also an auxiliary output at the microphone jack (2.5 mm) connector that is active as long as the light meter is turned on.
Measures wide range of light up to 20,000 fc or lux, front panel switchable
Accurate, high resolution of 0.01 fc/lux
Sensor dome has 45˝ attached cord
Built-in CIE spectrum curve for accurate human eye response
Peak hold and data hold
Large, 3-1/2 digit display with backlight feature
Meets CE EN61326-1 certification for safety ratings
技术参数:
Display: |
|
31⁄2-digit (LCD) with maximum reading of 1999 |
Overrange: |
|
(OL) is displayed |
Low Battery Indication: |
|
Change batteries immediately |
Measurement Rate: |
|
2.5 times per second, nominal |
Environment: |
|
Indoor use, altitude up to 2000 m |
Battery: |
|
4 pieces 1.5 V (AAA size) UM-4, R03 |
Visual Light Intensity Ranges: |
|
20 lux, 200 lux, 2000 lux, 20000 lux |
Visual Light Intensity Ranges: |
|
20 fc, 200 fc, 2000 fc, 20000 fc |
Total Accuracy: |
|
For CIE standard illuminant A (2856K): ± ( 3 % rdg + 10 digits) |