MAVO-MONITOR / MAVO-SPOT
Instrument Set for Contact or Distant Measurements of Luminances
150431/1.00
Operating Instructions
Page 1: ...MAVO MONITOR MAVO SPOT Instrument Set for Contact or Distant Measurements of Luminances 15043 1 1 00 Operating Instructions ...
Page 2: ...he MAVO MONITOR 4 3 1 Inserting the Battery 4 3 2 Preparing the Measurement 4 3 3 Contact Measurements 5 3 4 Overflow 5 4 Functioning and Circuitry 6 5 What is Luminance 6 6 Technical Data 7 7 Maintenance 8 7 1 Calibration Service 8 7 2 Cleaning and Maintenance 8 8 Description of MAVO SPOT 9 9 Operating the MAVO SPOT 10 9 1 Inserting the Battery 10 9 2 Battery Control 11 9 3 Preparing the Measurem...
Page 3: ...unt The recorder output of the MAVO MONITOR makes it particularly suitable for monitoring appli cations checking technical acceptance conditions and wherever hardcopy results are required 2 Applications Contact Measurements with the MAVO MONITOR placed directly on the surface to be measured Suitable for monitors television screens light boxes light displays Measuring at a Distance Using the MAVO M...
Page 4: ...ies with the right polarity Close the battery compartment Attention Only use new batteries or rechargeable accus according to IEC 6 LF 22 3 2 Preparing the Measurement Connect the measuring sensor to the MAVO MONITOR Switch the instrument on using the ON OFF switch and carry out a segment test Segment test Move the slider switch to the position Segm Test The display is working properly when the re...
Page 5: ...ensor Artificial light sources do not achieve full lumi nance until they have warmed up It is therefore advisable to switch on 15 min earlier The luminance of light sources depends on the power supply i e check the voltage with a volt meter where necessary 3 4 Overflow If the measuring range is exceeded the display merely shows a 1 on the left the other digits will be blank Move to the next higher...
Page 6: ...rol in the sensor This circuit also generates the voltage level for the recorder output 5 What is Luminance This is the amount of light as registered by the eye Luminance thus expresses the brightness of a surface The luminance in a certain direction is the density of the illumination emitted from the light source surface i e the quotient of the illumi nance J in the direction concerned and the il...
Page 7: ...der at least 500 kΩ The recorder output socket complies with safety class III requirements Meas Sensor Aperture Meas Area 18 5 mm 10 x 10 mm Display LCD 3 digits Digit Height 12 7 mm Power Supply 9 V IEC 6 F 22 battery e g Mallory MN 1604 Alkali or Varta Super 438 Accu IEC 6 LF 22 e g Varta 4002 Case Plastic Cable Length 1 5 m Dimensions Meas Instrument 86 x 153 x 25 mm Meas Sensor 32 x 105 x 95 m...
Page 8: ...end a recalibration interval between 12 and 18 months For this purpose please contact our Calibration Service Department telephone 49 911 8602 172 7 2 Cleaning and Maintenance Keep the instrument dry and clean away from dust Avoid exposing the sensor to unnecessary light Please use a slightly damp cloth only for cleaning the plastic surfaces avoid the use of cleaning agents or other strong chemica...
Page 9: ... the existing ambient light That distance can be further reduced down to 34 cm when using the close up lenses which are available as optional accessories The MAVO SPOT is colour corrected i e the spectral response of the photo diode is adapted to that of the human eye V λ according to DIN 5032 T7 class B Measuring at a Distance Using the MAVO MONITOR plus MAVO SPOT attachment Suitable for measurin...
Page 10: ...nt is located at the front of the grip of the unit Slide the cover of the compartment downwards insert the battery and attach the connector clips to the new battery Take care to get the polarity right Close the battery compartment Attention Only use new batteries or rechargeable accus according to IEC 6 LF 22 ...
Page 11: ... For measuring either the protec tive filter or one of the close up lenses must be attached Connect the MAVO SPOT with the MAVO MONITOR by means of the connection cable Select a suitable measuring range at the MAVO MONITOR and switch both instruments on 9 4 Measuring View through the ocular of the SLR viewfinder of the MAVO SPOT and direct the measuring circle you see in the viewfinder to the area...
Page 12: ...38 Accu IEC 6 LF e g Varta 4002 Operating Duration approx 60 hours of continuous measuring EMC Emission EN 50081 1 1992 Immission EN 50082 1 1992 Cable Length approx 1 m Dimensions 200 mm x 90 mm x 55 mm Weight 375g without battery Accessories Included Protective filter Ever ready case Optional Accessories Close up lens 1 Reducing the meas distance down to approx 51 cm to 1 m Ordering No M496G Clo...
Page 13: ...nd storage case for the combined set comprising both the MAVO SPOT and the MAVO MONITOR and also for two close up lenses and two spare batter ies is available 11 Maintenance 11 1 Calibration Service The instruments are calibrated at the light of a scientific standard lamp having a colour temperature of 2856 K fully in accordance with the PTB standard Depending on how the instrument is being used w...
Page 14: ...14 GOSSEN Foto und Lichtmeßtechnik ...
Page 15: ...GOSSEN Foto und Lichtmeßtechnik 15 ...
Page 16: ...rinted in Germany Subject to change without notice GOSSEN Foto und Lichtmeßtechnik GmbH Lina Ammon Str 22 90471 Nürnberg Germany Telephone 49 911 8602 181 Telefax 49 911 8602 142 http www gossen photo de ...
