MAVO MONITOR USB

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Item number: M504G

M504G Mavo Monitor USB

This high precision luminance meter is

used for contact measurement is assigned to class B in accordance with DIN 5032-7, appendix B of DIN EN 13032-1 and CIE 69, and measures the perceived light of back-lighted surfaces in candelas per square meter (cd/m²) or foot-lamberts (fL). It is the excellent adaptation to the spectral spectral brightness sensitivity of the human eye with a minimum deviation of only f1’ < 3 % that is significantly better than the specifications demanded in the standard.

After pressing the HOLD key, the measured value is saved to memory and display illumination is activated, making it possible to read the display in dark environments. The included adapter disc protects the meter from incidence of light from the side during measurement, and the velvety coating prevents scratching of self-luminous and back-lighted surfaces. In industrial, commercial and service applications, luminance can be measured at monitors of any type, TV screens, lightboxes, illuminated advertising surfaces, traffic signs and focusing screens.

Special tests for proving and observing norms and standards for quality, general safety, work protection, as well as safety on monitors in the field of medical diagnostics and office technology may get its documented evidence by means of our factory Calibration Certificate. Depending on how the meter is used, we recommend a calibration interval of 12 to 24 months.

Product Highlights

MAVO MONITOR USB MAXIMUM PRECISION

Classified measurement of luminance in cd/m² or fL in accordance with class B per DIN 5032-7, appendix B of DIN EN 13032-1 and CIE 69.
CONVENIENT EVERYDAY USE

Simple operation, easy to read display, compact design, protection during transport in high quality aluminum case.
BROAD MEASURING RANGE

High initial sensitivity and a resolution of 0.01 cd/m² or 0.001 fL, right on up to 19,990 cd/m² or 1999 fL.
NON-VOLATILE MEMORY

100 measured values can be saved, retrieved or transmitted to a PC via the integrated USB port. Average luminance values can also be calculated as a result.
V(λ) ADAPTATION

The spectral sensitivity of the silicon photodiode is color corrected and corresponds to the spectral brightness sensitivity of the human eye V(λ).
COMPUTER-AIDED MEASUREMENT

The meter’s continuous operating mode is assured thanks to power supply via the USB port. Meter control, as well
as acquisition, display and storage of measured values, is managed with included GLUX 2 software.

Illuminance [Lux]	0.01 cd/m² … 19 990 cd/m² / 0.001 fL … 1999 fL
Measuring ranges	4
Measuring range change	Automatic / Manual
Measuring rate	2 per second
Measuring method	contact measurements
Measuring sensor	silicon photo diode with V (λ) filter
Probe with tripod thread	•
Measurement cable	1.5 m, pluggable
Measured value memory	100 measurement values
Error limit – V(λ) adapted (f1‘), typical	<3%
Error limit – overall error, typical	≤ 8 %
Error – V(λ)-Matching (f1‘) typical	< 3 %
Accuracy	± 2.5 % of reading ± 2 digit

Applications

MEDICAL TECHNOLOGY

In some areas, increased demands are placed upon color rendering of the lighting used in health care facilities. This applies in particular to examination and treatment areas, operating rooms, intensive care units, laboratories, autopsy rooms and morgues. These are defined in the ASR A3.4 technical rules for workplace lighting, and in planning standard DIN EN 12464-1 for indoor workplaces.

PUBLIC TRAFFIC CONTROL EQUIPMENT

At the national and international levels there are different standards for lighting and traffic signaling equipment, which deal with lighting for streets, tunnels, sluices, railways and airports, as well as the associated signaling systems.

As a rule, the measured quantities to be acquired are described in these standards such as illumination and luminance, as well as the associated measuring methods and limit values.

HORTICULTURE LIGHTING

Humans and many other creatures perceive light differently than plants. The eye is differently sensitive to visible radiation depending on the wavelength. In daytime or photopic vision, the light sensitivity curve V (ʎ) applies, which has its maximum at 555 nm (yellow-green). All photometric measures, which include lumens, lux and cd / m², take into account this property.

Illuminance or luminance meters underestimate blue (400-500 nm) and red (600-700 nm) light due to the reduced light sensitivity of humans in these areas. However, plants use blue and red light intensively for photosynthesis. Instead of the inappropriate photometric measures, the photosynthetic photon flux density PPFD is used in the assessment of horticulture lighting.

INTERIOR AND LIGHTING DESIGN

In the fields of interior design and lighting design, precise information regarding the utilized sources of light is required. In particular when being combined with already installed lighting, their parameters have to be measured and matched.

The chromaticity of the individual light sources must be measured in order to adjust and balance targeted color effects, and measurement offers significant advantages over a purely visual method.

The results of lighting design through the use of planning programs such as DIALux can be objectively double-checked and documented after installation.

IMPORT, SALES & COMMERCE

In the field of LED technology, color temperature, color rendering and flicker vary considerably from one manufacturer to the next and distinguish quality goods from bargain products. Already when selecting lamps and light fixtures for the sales program, the manufacturers’ specifications can be rapidly checked and the quality of individual suppliers can be evaluated. This applies as well to subsequent deliveries from the selected supplier.

This knowledge can be used for competent consulting throughout the entire sales chain which extends from the manufacturers or importers and their respective sales departments, through to the dealers and right on up to the end customers. Quality differences amongst the various individual manufacturers and products can be represented in an objective, transparent manner.

SHOP LIGHTING

Where shop lighting is concerned, moods are generated by means of contrast, light color and light intensity which arouse emotions and animate us to buy the respective product. In the case of textiles and leather goods, ideal color rendering is important in order to be able to recognize the product’s color and material characteristics.

Where foods are involved, lighting requirements are just as greatly varied as the goods themselves – they should look as authentic and appetizing as possible. This problem can be solved either by means of lighting with very good color rendering or in a targeted fashion through the use of a special light spectrum which, for example, boosts the red color of sausage and meat products or the golden-brown color of baked goods.

WORKPLACE LIGHTING

Additional requirements for color rendering and flicker of the utilized lighting are included in the ASR A3.4 technical rules for workplace lighting, as well as in planning standards DIN EN 12464-1 for indoor workplaces and DIN EN 12464-2 for outdoor workplaces. In particular where LED lighting is used, these values should be checked.

Perfect color rendering for exacting demands placed upon color selection and color monitoring in the graphics and chemicals industries, for hair care and cosmetics, as well as for processing wood, ceramics, textiles, leather goods and jewelry with a color rendering index of greater than 90.

Flicker is initially invisible to the human eye but it has a significant influence on human health, and may trigger epileptic seizures, migraine headaches, tiredness, constrained vision, distraction and impaired vision.

STAGE, STUDIO AND FILM LIGHTING

Color temperature and color rendering were not issues for previous use of conventional lamps, because they were usually fixed depending on the respective system. With the introduction of LED technology which offers extensive degrees of freedom with regard to color temperature and color rendering, it makes good sense to measure these parameters and match them up in the event of mixed usage. In addition to general color rendering index Ra, color rendering index R9 should also be taken into consideration, which provides information about saturated red within the spectrum. If the red component is minimal, it can be assumed that red and skin tones will not be ideally rendered. The desired lighting effect is set via the measurement of illuminance.

Downloads
- Operating Instructions MAVO MONITOR USB (PDF | 188.7 KB)

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