26
7. SPECTRAL SENSITIVITY CHARACTERISTIC
The sensor of this instrument together with its filter gives a spectral sensitivity
characteristic close to photopic curve Vλ of C.I.E. (INTERNATIONAL
COMMISSION ON ILLUMINATION) as described in the following chart.
8. MAINTENANCE
1. Take care to keep the receptor window clean and free of scratches. Keep the
cap on when the window is not in use.
2. The white plastic disc on the top of the detector should be cleaned with a
damp cloth when necessary.
3. Do not store the instrument where temperature or humidity is excessively high.
4. The reference level, as marker on the face plate, is the tip of the photo detector
globe.
5. The calibration interval for the photo detector will vary according to operational
conditions, but generally the sensitivity decreases in direct proportion to the
product of luminous intensity by the operational time. In order to maintain the
basic accuracy of the instrument, periodic calibration is recommended.
9. SOFTWARE INSTALLATION and OPERATION
For the detailed instruction, please refer to the content of attached CD-ROM,
which has the complete instruction of software operation and relevant
information.
0
0,2
0,4
0,6
0,8
1
1,2
0
0,2
0,4
0,6
0,8
1
1,2
3
8
0
4
0
0
4
2
0
4
4
0
4
6
0
4
8
0
5
0
0
5
2
0
5
4
0
5
6
0
5
8
0
6
0
0
6
2
0
6
4
0
6
6
0
6
8
0
7
0
0
7
2
0
7
4
0
7
6
0
7
8
0
R
e
la
ti
ve
Se
n
si
ti
vi
ty
(%
)
Wavelength in Nonometers
Light
Mete
r
Содержание ELMA-1336
Страница 1: ...CHROMA METER ELMA 1336 INSTRUCTION MANUAL...
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