Gossen MAVO-MONITOR USB Handleiding

Gossen Lichtmeter MAVO-MONITOR USB

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Gossen Foto- und Lichtmesstechnik GmbH 1

Operating Instructions

MAVO-MONITOR USB

Measuring Instrument for Luminance 15161 1/7.04

MAVO-MONITOR USB

Page

1 Applications................................................................................. 2

2 Display......................................................................................... 2

2.1 The elements of the display.......................................................... 2

2.2 Key pad........................................................................................ 2

3 Functioning of the MAVO-MONITOR.......................................... 2

3.1 Preparation..................................................................................... 2

3.2 Duration of display - Continuous operation..................................... 3

4 Using the MAVO-MONITOR....................................................... 3

4.1 Switching on – Making Measurement.......

4.2 Selecting the desired measuring unit – cd/m 2 or fL ..................... 3

4.3 Overload signal............................................................................. 3

4.4 Memory functions.......................................................................... 3

4.4.1 „HOLD“ Display Hold Function...................................................... 3

4.4.2 „Mem“ - Storing measurement value in memory........................... 4

4.4.3 „Mem Edit“ - deleting a value in memory and enter a new value... 4

4.4.4 „Mem Recall“ - Data Memory Recall.............................................. 5

4.4.5 „Mem Clear“ - Clear memory......................................................... 5

5 USB Port – Standard Software..................................................... 5

6 Accessories..................................................................................... 5

6.1 Standard equipment...................................................................... 5

6.2 Optional accessories..................................................................... 6

6.3 Calibration Certificate.................................................................... 6

7 Servicing and Repairs................................................................. 6

8 Technical Data.............................................................................. 6

Declaration of conformity........................................................... 7

Light sensor

Display

Light measuring probe

Key pad

USB Port

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/ft2

= 10.76 cd/m 2 = 3.142 fL

2 Display

2.1 Description of display 2.2 Key pad

1 1 Display of measured value and Switching on/off

Memory indication 2 Range key – Memory/Measuring range

2 3 Measurement Unit cd/m 2 fL- Select measurement unit

3 4 Display „HOLD„ indication Hold - Function

4 5 Multiplying factor for measurement value Range key – Memory/Measuring range

5 6 Auto ranging – automatic range selection 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.

Gossen Foto- und Lichtmesstechnik GmbH 3

3.2 Duration of Display – Continuous operation

If for approx. 4 minutes none of the keys of the MAVO-MONITOR is pressed, the instrument will be

switched off automatically. During the last 4 seconds before automatic switch off an acoustic signal will

sound. By pressing any one of the keys, you can override the automatic switch off. When the instrument is

switched off, the values stored in the data memory and also the preset individual values will be maintained.

You can override the automatic switch off, when switching on the instrument and simultaneously keep the

HOLD key depressed.

The measuring unit (cd/m² or fL) in the display will blink and indicate that the continuous operation mode is

on.

4 Using the MAVO-MONITOR

4.1 Switching on – Making Measurement

Press the on/off key and the MAVO-MONITOR is immediately in the measuring mode and is measuring at

the rate of 2 times per second. The instrument is in the function „AUTO“, i.e. the MAVO-MONITOR will

select the best suited measuring range for the existing light level. By pressing one of the range keys, one of

the measuring ranges can be locked. Browsing up or down through additional measuring ranges is

accomplished by briefly pressing one of the range keys. If both keys are pressed and held simultaneously,

the instrument is returned to „AUTO RANGING“.

4.2 Selecting the desired measurement unit cd/m 2 or fL

Use the key cd/m2 fL to select the desired unit for the read-out – cd/m² or fL.

4.3 Overload Display

When exceeding one of the measuring ranges „OL“ (Overload) appears in the display.

4.4 Memory Functions

The MAVO-MONITOR is provided in addition to the „Display Hold“ also with a memory for data up to 100

measurement values.

This function allows several measurement operations in the field and read-out at a later time. The data

stored in the memory will be maintained, even when the instrument is turned off or the battery is changed.

4.4.1 „HOLD“ Display Hold Function

The display HOLD function allows you to measure even at very low light levels, where it would be difficult to

read the display. By pressing the HOLD key, the last value measured is held on the display to be read at

brighter light. Pressing the HOLD key again will return the MAVO-MONITOR to the measuring function.

The function HOLD is the basic function for all the memory functions.

Hold

Product specificaties

Merk:	Gossen
Categorie:	Lichtmeter
Model:	MAVO-MONITOR USB
Kleur van het product:	Zwart
Gewicht:	265 g
Breedte:	65 mm
Diepte:	19 mm
Hoogte:	120 mm
Beeldscherm:	LCD
Ondersteund aantal accu's/batterijen:	1
Batterijtechnologie:	Alkaline
Type batterij:	AA
Scaninterval:	0.5 s