Milwaukee Instruments SM700, MW700 User Manual
LUX
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www.milwaukeeinst.com
MW700 and SM700 are portable Lux meters designed to perform
light measurements. MW700 with Faster Micro Processor, has a
smaller, ergonomic and lighter case design. Other features include
100% larger and easier to read LED Display and long battery life.
These handy and ergonomically designed portable meters are
ideal for anyone working on a low budget and still requires fast
and reliable measurements. These portable meters are suitable for
a wide range of applications, such as Educational, Agriculture and
Horticulture, as well as water and environmental analysis.
Both models are supplied with a light sensor connected to the
meter that measures from 0 to 50000 Lux.
Average indoor lighting ranges from 100 to 1000 Lux and average
outdoor sun lights about 50000 Lux. Lux is a unit that indicates the
density of light that falls on a surface.
The light is necessary for the development of the plants. In fact, it
is necessary a sufficient contribution of light in order to favor the
photosynthesis and the closing of the plants.
The supplement of light by means of lamps electrical
workers is the method simpler and economic in order to
bring the necessary light to the plants.
The human eye is sensitive only to blue, green, and red
light, so in calculating the Lux falling on an object, only
the light that the human eye sees is counted. When only
infrared light falls on an object, the Lux is counted as zero
since our eyes see nothing. Mathematically, a spectral
weighting function becomes convolved with the actual illu-
mination spectrum to calculate Lux exactly.
This is the formal defini-
tion of Lux and it makes
Lux an unusual unit of
measure.
MW700/SM700
Entry level, inexpensive LUX Portable Meters
for fast and reliable results
Light Sensor
MW700 and SM700 are provided with a light sensor connected to the meter through
a coaxial cable.
Ordering Information
MW700 and SM700 are supplied complete with 9V battery and instructions.
Range keys
Press one of the three “Range keys” to select the proper scale according to the intensity of the light.
Still, Lux can be thought of as a way of measuring light in terms of
what our eyes perceive. The metric unit of measure for luminance of a
surface. One Lux is equal to one Lumen per square meter.
One Lux equals 0.0929 footcandles.
New
Specifications MW700 and SM700
Range 0.000 to 1999 Lux
2000 to 19999 Lux
20000 to 50000 Lux
Range setting manual through key buttons
Resolution 1 Lux
10 Lux
100 Lux
Accuracy ±6% of reading ±1 digit
Peak Wave Length 560 nm
Sensor Type silicon photodiode
Sensor Sensitivity 100 scotopic Lux
Sensor Stability ±2% change per year (in the first two years)
Environment 0 to 50°C / 32 to 122°F; max RH 95%
Battery Type 1 x 9V (IEC 6LR61) alkaline
Battery Life approximately 150 hours of continuous use
Auto-off after about 5 minutes of non-use
Weight approximately 270 g (meter with sensor)
MW700
SM700
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