Measurement methods and precautions for digital illuminometer
A digital illuminometer is a specialized instrument for measuring illuminance. It is the degree to which an object is illuminated, which is the ratio of the luminous flux obtained on the surface of the object to the illuminated area. An illuminometer is generally composed of a selenium photocell or silicon photocell combined with a filter and a microampere meter. Digital illuminometers are mainly used in schools, hospitals, homes, offices, factories, hotels, hotels, entertainment venues, shops, department stores, and other fields.
Measurement method of digital illuminometer
1. Turn on the power.
2. Select the appropriate measurement gear.
3. Open the light detection cover and align the front of the light detector with the desired light source.
4. Read the measured value of the illuminance meter LCD.
5. When reading the measured value, if the highest digit displays "1", it indicates overload, and a higher gear should be selected for measurement immediately.
6. Turn the data hold switch to HOLD, the LCD displays the "H" symbol, and the displayed value is locked. Turn the switch to ON to cancel the reading lock function.
7. After the measurement work is completed, please cover the photodetector and turn off the instrument power.
Precautions for using digital illuminometer
1. Do not measure in high temperature or high temperature places.
2. Keep the time detector clean when using it.
3. The reference position for the light source test is at the top of the receiving sphere.
4. The sensitivity of the photodetector may decrease due to usage conditions or time. It is recommended that you regularly calibrate the instrument to maintain basic accuracy.
