How to use Reed ST-1301 Precision Lux Meter
Measuring Light Select the desired range (x1 Lux/Fc , x10Lux/Fc, x100Lux/Fc) by turn the Reed ST-1301’s Power/Function/Range switch. Remove the photo detector to the light source in a horizontal position and read the illuminance nominal from the LCD display.
Over-range: If the instrument only displays one “1” in the M.S.D. the input signal is too strong, and a higher range should be selected. When the measurement is completed, replace the photo detector from the light source.
Spectral sensitivity characteristic: To the detector, the applied photo diode with fi lters makes the spectral sensitivity characteristic almost meet C.I.E. (International Commission on Illumination) photopia curve V(y) as the following chart described.
REED ST-1301 Specifications
|Measuring Range||0 to 50,000 lux, 0 to 5,000 Fc|
|Accuracy||±5% of reading < 10,000 lux|
|Sampling Time||1.5 times/second|
|Power Supply||Single 12V battery (included)|
|Dimensions||7.4 x 2.5 x 1” (188 x 64 x 25mm)|
|Weight||5.6 oz (160g)|
What’s included with the REED ST-1301
- ST-1301 Light Meter
- Carrying Case
Ideal Applications for the REED ST-1301
- Environmental monitoring
- Health & safety checks
- Industrial applications
Battery Replacement If the sign “BAT” appears on the LCD display, it indicates that the battery should be replaced. Open the battery case and replace the expired battery with new battery. (1 x 12V battery, A23 or equivalent)