ST-86LA screen brightness meter

ST-86LAScreen brightness meter


ST-86LADetailed Description of Screen Brightness Meter:
st-86LAThe screen brightness meter is specially designed to measure the brightness of various fluorescent and transmissive screens, and it is used in television, medical, and other applicationsXRadiationCRTIt has a wide range of applications in the measurement of electroluminescence, fluorescent substances, and other related fields.
ST-86LAFeatures of screen brightness meter:
*Using stable, strong light resistant, and impact resistant silicon photovoltaic cell detectors, with strict visual correction, accurate photometric measurement can be achieved
*Wide measurement range, can be measured without the need for a dimmer0.01~19990cd/m2
*Digital display with good reproducibility of indication and data latch function
*Saving electrode consumption,9VStacked batteries can be used continuously100hour
*Compact and portable, easy to use
ST-86LATechnical specifications of screen brightness meter:
1. Measuring range0.01~19990cd/m2
2. precision≥The measured values±0.5%±1a character
3. Accuracy:≤The measured values±4%±1A word (relative toNIMStandard)
4. Spectral response characteristics: comply with the first level standard
5. Linear error:≤The measured values±0.2%±1a character
6. Temperature characteristics:≤The measured values±0.1%/℃±1a character
7. *Stability: Annual variation<2%
8. Usage environment: Temperature20±20℃ humidity<85%
9. Size and weight:180×80×36（mm）0.2kilogram
10. power supply9VLaminated battery
ST-86LAScreen brightness meter structure:
The instrument consists of a metering probe and a reading unit, which are connected by cables using plugs and sockets. The functions of the buttons on the left side of the reading unit are as follows:
'power supply'Press this button to turn on the power, lift this button to turn off the power
'maintain'Press this key to hold the data, and lift it to sample the data. When measuring, lift this button
'brightness'When measuring brightness, press this button (also note to'expand'Lift the key.
'Expansion key'Add accessories according to user requirements for functional expansion. Press this button when performing extended function measurements (simultaneously) Pay attention to'brightness'Lift the key.
'×1'，'×10'，'×100', and'×1000'For four range buttons
ST-86LAScreen Brightness Meter Operation:
When using, press first'power supply'、'brightness'Insert the plug of the large probe into the socket of the reading unit with any range key (lift the rest of the keys). At this point, simply open the probe cover and press the photosensitive surface port tightly against the test screen. The product of the number displayed on the display window and the range factor is the brightness value (unit:cd/m2）. To keep the measurement data, you can press'maintain'The key. (Note: Do not press before pressing the range key)'maintain'After reading the numbers, you should'maintain'Lift the key to return to the sampling state. After the measurement is completed, lift (turn off) the power button.
If only the left end of the display window is shown'1'Indicating photometric overload, (the key with a larger factor range should be pressed for measurement). Or indicate that the range key was mistakenly pressed before'maintain'The key was pressed first. Therefore, it should be operated correctly.
Note:'power supply'、'maintain'The two keys are self-locking keys,'brightness'、'expand'Two keys are interlock keys, and four range keys are interlock keys.
When the LCD display panel appears in the upper left corner'LOBAT'Words or'←'When necessary, the internal battery should be replaced
ST-86LAScreen Brightness Meter Maintenance:The instrument should be stored in a humid environment<80%The temperature is20±10℃In a clean environment