SOLARMETER
MODEL 9.6 VISIBLE LIGHT METER |
RED LIGHT |
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Features
- Integral Sensor
- Compact
- Durable
- Accurate
- LCD readout
Applications
- Red LED Intensity
- Red Fluorescent Lamp Aging
- 633 nm Phototherapy Tests
- Collagen Stimulation Tests
| Plant Growth |
- The red band of the photosynthetic radiation action spectrum (PAR).
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The light can be measured directly or the instrument can measure the light transmitted through a leaf, thereby providing a means to estimate the leaf's photosynthetic/phototropic pigment concentration.
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Solarmeter
Specifications
Radiometer |
| Model |
9.6 |
| Irrad.
Range |
0-199.9
mW/cm² |
| Response
at 633 nm |
97% |
| Bandwidth |
577-661
nm |
| Resolution |
0.1
mW/cm² |
| Conv.
Rate |
3.0
Readings/Sec |
| Display |
3.5
Digit LCD |
| Digit
Size |
0.4
inch high |
| Oper.
Humid. |
5%
TO 90% RH |
| Accuracy |
±10%
REF.NIST |
| Dimensions
(in.) |
4.2L
x 2.4W x 0.9D (inches) |
| Weight |
4.5
OZ. (incl. batt.) |
| Power
Source |
9-Volt
DC Battery |
| Window |
Schott
Glass Cap |
| Diffuser |
Virgin
Teflon .005" |
| Detector |
GaAsP
Photodiode with Schott Filter |
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Sensor/Detector
GaAsP Photodiode packaged in hermetically
sealed glass window cap.
Schott color glass filter to narrow bandwidth
as shown on spectral response graph.
Operation
Press and hold push-button switch on face
of unit. Aim sensor window in top panel
of meter directly at red light source.
Note reading on LCD and record if desired.
Battery operation voltage is 9V down to
6.5V. Below 6.5V the LCD numbers will
begin to dim, indicating the need for
battery replacement. Under "typical"
service load, the battery should last
about 2 years. |
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Proper
Usage of Solarmeter ® Ultraviolet Radiometer
for Red Light Tests
- Wear tinted eye wear when checking intense
light sources.
- Allow lights to warm-up prior to taking
readings (at least 5 min).
- Hold sensor close to LED or lamp to measure
individual light intensity. Hold sensor at
working distance from source for effective
intensity.
- When checking aging of lights, keep measuring
distance and locations constant.
- Lights should be replaced when output drops
to about 70% of their original (new) readings.
- If unsure of what new values were, replace
adjacent light with new one and compare old
one.
- Do not subject the meter to extremes in
temperature, humidity, shock or dust.
- Use a dry, soft cloth to clean the intrument.
Keep sensor free of oil, dirt, etc.
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