YOKOGAWA 51001, Руководство пользователя

Страница: 12 / 31

- 11 -
Light source type
Color correction factor*
Typical value of
Daylight fluorescent lamp
White fluorescent lamp
Three-way fluorescent lamp 0.994
0.996
1.007
High-pressure mercury vapor lamp 0.993
High-pressure sodium vapor lamp 0.988
Standard light source B
Standard light source C 0.996
0.995
Equal-energy source (400 to 760 nm) 0.997
* The color correction factor is calculated based on the relative spectral distribution values
respectively of JIS Z 8719, JIS Z 8720, and CIE No. 53TC.2 lamps.
Table 1. Typical Values of Color Correction Factor
· An electromagnetic interference affects the operating tolerances under
EN61326-1;1997+A1;1998 condition.
· If a high electromagnetic interference equipment exists in the near vicinity of
the instrument, this may cause malfunction.
Note
Illuminance Measurement
Operation
1. Cover the light-detecting surface with the cap and confirm that the
HOLD
switch lock is released.
2. Press the
POWER
switch to turn on the power. All the characters will
appear in the display area. When the meter enters the automatic zero-
adjustment mode, [—CAL—] appears.
Note: If [—CAP—] appears, this means that the cap is not on properly.
Press on the cap until [—CAL—] appears.