User manual SEKONIC HANDY LUMI 246
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Manual abstract: user guide SEKONIC HANDY LUMI 246
Detailed instructions for use are in the User's Guide.
[. . . ] Specifications
Measuring Range of Illuminance: Low: 0 -1000 Lx (Red scale) Ordinary: 0-5000 Lx (Black scale) High: 0-50000 Lx (by using the Slide of x10 multiplier) Accuracy : ± 10% (tested by a standard parallel-light tungsten lamp of color temperature 2854°K) without including the resolution for the meter (the value deserves minimal scale 1/2)in this accuracy. [. . . ] Measurement of High range: 0 --50000 Lx
To measure the range of 0--50000 Lx, use the lumidisc for ordinary measurement (see 2. Then INSERT THE SLI DE (x10 multiplier) into the slit located at the top of the swivel-head. Read the BLACK figure the pointer indicates, then MULTIPLY the figure by 10 to get the correct lux.
4. Measurement of Low range: 0--1000 Lx
To measure the range of 0-1000 Lx, use the lumidisc for low measurement (with a red dot at the outer ring of the disc and no filter at the back). Then MULTIPLY the figure by the correction factor of each light source shown in the table below.
Correction factor
Mercury arc lamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 1 Fluorescent lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 0 Incandescent light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 0 Day light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 8
Example
In case the pointer indicates 600 Lx under mercury arc lamp, the correct lux is, 600 Lx X 1. 1-=660 Lx
5. Swivel-Head
The swivel-head is one of the most advantageous features of this meter. Swivel the head of the meter to the right or left when the measurement is difficult due to the position of the surface to be measured.
6. Zero setting adjustment
When the light receptor is completely covered by hand (a condition where no light enters into the light receptor), the pointer should be at zero. [. . . ] 4) Store it in the case and keep in a dry place when not in use.
SEKONIC CO. , LTD.
7-24-14, Oizumigakuen-cho, Nerima-ku, Tokyo, Japan
Printed in Japan [. . . ]
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