User guide

Gossen Foto- und Lichtmesstechnik GmbH
2
1 Applications
The MAVO-MONITOR Luminance Meter is a handy, easy to use and high precision measuring instrument.
It allows the accurate measurement of the luminance in cd/m² or fL. The MAVO-MONITOR is ideally suited
for contact measurements with the light measuring probe placed direct on luminous or backlighted
surfaces (monitors, TV sets,light boxes, light panels). When combined with the MAVO-SPOT Attachment
(optional accessory), it can be used for spot metering the luminance at a distance from 34 cm to ∞, the
measuring angle being 1 degree. (Monitors, with the ambient light being taken into consideration in the
measurement - lighting and illumination of work stations, streets, airports, museums, projection screens).
The light sensor is color corrected, i.e. its spectral responsitivity has been matched to the spectral photonic
vision of the human eye (V λ). The accuracy class for luminance meters has been defined in the Standard
Specification DIN 5032, Part 7. The MAVO MONITOR fully complies with the requirements of Class
B.Consequently all the important types of light can be measured with high precision, without the necessity
to apply additional corrrection factors. The MAVO-MONITOR is provided with a data memory with 100
measurement value locations, which can be read and processed direct with the keys and display, but also
through the integrated USB Port and the standard software provided with the instrument.
cd/m² = Candela per m² 1 cd/m
2
= 0.2919 fL = 0.0929 cd/ft
2
fL = footLambert 1 fL = 3.426 cd/m
2
= 0.3183 cd/ft
2
1 cd/ft
2
= 10.76 cd/m
2
= 3.142 fL
2 Display
2.1 Description of display 2.2 Key pad
1 Display of measured value and 1 Switching on/off
Memory indication 2 Range key – Memory/Measuring range
2 Measurement Unit 3 cd/m
2
fL- Select measurement unit
3 Display „HOLD„ indication 4 Hold - Function
4 Multiplying factor for measurement value 5 Range key – Memory/Measuring range
5 Auto ranging – automatic range selection 6 Mem – Memory key
6 Low Battery
3 Functioning of the MAVO-MONITOR
3.1 Preparation
First remove the snap-on cover and open the battery compartment at the back of the meter. Insert the
battery included with the meter (1.5 V size AA, IEC LR6) in the battery compartment.
Care should be taken to place the battery correctly according
to the polarity indications “+“ and “-“ in the battery compartment.
When the battery warning symbol ( ) appears in the display,
the battery must be replaced.
The values in the measurement data memory and also the preset
individual values will be maintained, even when the battery is changed.