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Light
Meter Ft Candle Scale, 840021
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Applications include
light levels in work places, labs and schools, environmental studies,
biology, optics, reflectance and translucence properties of materials.
Compact and portable, can be used to monitor light levels anywhere, or
to check the lux level of a particular light source. Use to check
compliance with ANSI/NFPA 101, (standards for emergency and exit
lighting). Sper Scientific light meters are cosine and color corrected
and have a range of 0.1 to 2000 Foot candle scale. Quick and accurate
response. The selenium cell photo sensor is hermetically sealed to
ensure long term stability. Large easily legible 4 digit LCD. Also has
a data hold switch to freeze results and a recorder output. Comes with
carrying case, photo-sensor cover, instructions and a 9-Volt battery.
Dimensions
(Main Unit) |
4.75 x 2.5
x 1" |
Dimensions
(Photo-sensor) |
5 x 2.5 x
1.5" |
Dimensions
(Photo-sensor lead) |
54" |
Weight
(Main Unit) |
6 oz. |
Weight
(Photo-sensor) |
3 oz. |
Display |
3-1/2
digit LCD - Maximum reading 1999 |
Overload
Display |
"1"
displayed on the left |
Power
Supply |
One
9V battery. Lasts approx. 200 hours |
Range |
20,
200, 2,000 Footcandles |
Accuracy |
20
fc scale, ?% reading, ?.5 FS
200 fc scale, ?% reading, ?.5% FS
2,000 fc scale, ?% reading, ?% FS |
Temperature
Characteristics |
?.1%/C,
(i.e., for 1C rise or drop in the temperature the readout
will be affected by the ?.1%) |
Repeatability |
?% |
Incident
Angle Characteristics |
30
degrees: ?%
60 degrees: ?%
90 degrees: ?5% |
Photo-sensor |
Selenium
cell, hermetically sealed |
Recorder
Output |
20mV
full scale |
Accessories:
click on item number for additional information.
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With
NIST traceable certificate of calibration:
840021C, |
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Send comments to:jsi@jsits.com
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