With the help of a luxmeter, you can quickly and accurately measure the illumination in a room. This is necessary in order to compare the actual level with the norms and after that, possibly, improve the lighting level in the room. The fact is that low light leads to a deterioration in vision, general well-being and even labor productivity. In this article, we will tell you how to use a light meter by providing an instruction manual for the instrument of the dial and electronic (modern) type.
Content:
- Dial gauge
- Electronic device
Dial gauge
So, in order to measure the illumination of the workplace with a dial light meter, you need:
- Place the device in a horizontal position, directing the photocell towards the light source.
- Place a suitable cap on the photocell.
- Take readings by pressing the left or right button, depending on the situation. The left button allows you to read the readings from the lower scale (up to 30 Lx), and the right button from the upper one (from 0 to 100 Lx). In addition, each nozzle has its own coefficient of attenuation of the luminous flux, therefore it is important to take into account and this moment, which is clearly described in the video tutorial provided below (model U-116):
Also, when using the meter, you must take into account several important requirements:
- no shadow should fall on the photocell;
- before work, the arrow must be at zero, if this is not the case, use the corrector to set it to the zero position (this will require a screwdriver);
- sources of electromagnetic radiation located near the luxmeter can cause interference, and, accordingly, measurement errors, therefore, it is required to remove them for the duration of the measurements;
- if the illumination displayed on the board with the installed nozzles is less than 30 Lx, it is necessary to remove the nozzles and use the meter with an open photocell.
That's the whole instruction manual for the pointer illumination meter. As you can see, there is no difficulty in measuring. The main thing is to take into account the recommendations and requirements provided.
Electronic device
Using an electronic light meter is much easier. All you need to do is turn on the power and select the appropriate function. The device will automatically select the desired coefficient and take measurements. As for the functions, in addition to measuring the illumination in a room, some models also allow you to measure the ripple factor and brightness of light sources. Let's take a quick look at how to use each of the functions using the RADEX LUPIN model as an example.
To measure the ripple coefficient with a luxmeter, you need to turn it on and press the "P" button. Next, place the device in a horizontal position (if the measurement of the coefficient pulsation of ceiling lamps) or direct it towards a light source (for example, a table lamp, as on photo below). After that, read the readings and draw the appropriate conclusions.
Important! Measurements can be affected by light from other light sources, movement when using the light meter (so it must lie still) and even foreign objects, such as a falling leaf. Consider these factors if you want to measure as accurately as possible.
If you want to measure the illumination of a room with a luxmeter, then you need to use it according to the following instructions:
- position the meter horizontally, in the direction of the light source;
- press the "E" button;
- get the result on the display.
Please note that the rest of the included lamps or lamps affect the readings, so if you want to measure the level illumination from one specific light emitter, for example, a chandelier, all other lamps must be off.
Important! About, what should be the level of illumination according to GOST, you can find out from our article!
Well, the last function that can be used in RADEX LUPIN is brightness detection. Most often, the brightness is determined from monitors and television screens. To independently check the brightness of the lighting, you need to put a pure white background on the tested screen, press the "L" button, place the photocell at a distance of 1 cm from the screen and take the result. It is advisable to keep the light meter stationary in order to obtain an accurate reading. Also, to determine the brightness, it is recommended to take several measurements and calculate the average value.
An example of using this meter is provided in the video:
Another fairly popular model is the HS1010. How to use it is described in this video:
That's all we wanted to tell you about how to use a light meter. We hope the instructions provided were useful to you!
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