Gossen MetraWatt MAVOSPEC BASE Operating Instructions Manual

Operating Instructions

MAVOSPEC BASE 15579

Spectrometer 1/07.16

2 Gossen Foto- und Lichtmesstechnik GmbH

Thank you for selecting a GOSSEN product.

You’ll enjoy easy operation, top quality and precise measurement, as well as an extensive range of applications.
Please check to makes sure that all of the parts listed below have been included in the scope of delivery.

If anything is missing, please contact your dealer.

 MAVOSPEC BASE
 Cover cap, micro SDHC memory card (installed in the battery compartment), SD adapter
 V070A rechargeable battery, power pack and USB interface cable
 Aluminum case, sheath, carrying strap
 Calibration report
 Operating instructions (German/English)

Outstanding MAVOSPEC BASE Measuring Functions and Features

 Spectral power distribution within a range of 380 to 780 nm (VIS)
 Chromaticity, color coordinates per CIE 1931 [x,y], CIE 1960 [u,v], CIE 1976 [u',v'], display of the CIE standard color table
 Correlated color temperature CCT and color rendering index Ra, as well as individual indices R1 through R15
 Flicker value as index, as percentage [%] and with frequency [Hz]
 Illuminance with cosine-corrected measuring probe in accordance with class B per DIN 5032-7
 Large dynamic range from 10 to 100,000 lx, highest resolution: 0.01 lx
 Automatic or manual measured value storage to an interchangeable micro SDHC memory card
 Easy data transfer thanks to CSV format
 Documentation of measured values via included Excel templates for evaluation
 Universal USB port for convenient data exchange, device control, firmware updates and battery charging
 Individualized system integration via open USB interface protocol
 Sustainable device concept thanks to update option via USB port
 Ecological power supply with rechargeable Li-ion battery, recharging via USB port and display of charging status and charge level
 Extremely long rechargeable battery operating time of roughly 8 hours continuous operation, which can be extended thanks to adjustable

display and device shutdown

 Outstanding measured value stability thanks to automatic temperature compensation and zero-point correction
 Individualized calibration (photometric and radiometric), calibration report included in scope of delivery
 Convenient daily use, intuitive operation via ring controller, readily legible high-resolution color display, compact design

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Table of Contents

Page

Safety Precautions, Warnings and Other Notes

5

1

Initial Startup

1.1

Inserting the Memory Card

8

1.2

Inserting the Rechargeable Battery

8

1.3

Charging the Battery

9

1.4

Default Settings

9

2

The Meter and its Controls

2.1

Device Overview

10

2.2

Controls

11

2.3

Display

12

3

Functions

3.1

Switching the Meter On

13

3.2

Measurements

13

3.3

Measured Value Window

14

3.3.1

Spectrum

15

3.3.2

Report

15

3.3.3

CIE

16

3.3.4

CRI

16

3.3.5

Data

16

3.4

Measured Value Memory

17

3.4.1

Saving Measured Values to Memory

17

3.4.2

Loading Stored Measured Values

17

4

MENU

4.1

Overview

18

4.2

Navigation – Setup

19

4.3

MENU – General

20

4.4

MENU – Settings

21

4.5

MENU – Measurements

22

4.6

MENU – Memory

23

4.7

MENU – Presentation

24

4.8

MENU – Information

25

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5

USB Port

25

6

Firmware Update

25

7

Documenting Measured Values

26

8

Practical Tips

26

9

Factory Calibration

27

10

Service

27

11

Error Messages

28

12

Technical Data

29

EU Declaration of Conformity

31

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Safety Precautions

Please read these safety precautions carefully before using your meter. This will help you to avoid damaging the product and prevent personal injury.

This symbol identifies important warnings which should be read

in any case before initial startup of your GOSSEN product.

Warnings

In the event of malfunctioning, switch the meter off immediately.

If the event that smoke develops or unusual odors become apparent, which are caused by either the meter or the power pack,
disconnect from mains power immediately and remove the rechargeable battery from the device in order to prevent possible fire.
Continuing to operate the meter or the power pack after such malfunctions have occurred may result in severe injury.
Please contact your local dealer or GOSSEN Service in order to eliminate malfunctioning. If you bring or send the meter in for repairs,
make sure that the rechargeable battery has first been removed.

Do not use the meter in proximity to flammable gases.
Electronic devices should never be used in proximity to flammable gases. Danger of explosion and fire is otherwise immanent.

Never hang the device from children with the carrying strap.
Danger of strangulation exists if the carrying strap is hung around the neck of a child.

Store the meter at a location which cannot be accessed by children.

The meter and its accessories include parts which can be swallowed. Make sure that these parts (e.g. housing covers, rechargeable
batteries etc.) do not fall into the hands of children who might swallow them. Otherwise, danger of suffocation prevails.

Use suitable cables only.
Use included, original GOSSEN cables only for connection to external devices. GOSSEN assumes no liability if other cables are used.

6 Gossen Foto- und Lichtmesstechnik GmbH

Do not dismantle the meter.

Never touch any parts inside the housing. Injury may result. Do not repair the meter yourself. Repairs may only be conducted by
appropriately trained personnel. If the meter’s housing is damaged due to dropping or other external influences, remove the
rechargeable battery or power pack and contact your local dealer or GOSSEN Service for repair.

Avoid any and all contact with the liquid crystals.
If the display is damaged (e.g. broken), danger of injury due to contact with glass shards or discharge of liquid crystals exists. Make
sure that skin, eyes and mouth do not come into contact with the liquid crystals.

Be careful when handling rechargeable batteries.

Rechargeable batteries may leak or explode if handled incorrectly. Please adhere to the following safety precautions:

• Make sure that the meter is switched off before removing or inserting rechargeable batteries.
If the meter is used with a power pack, supply power must first be disconnected (pull the mains plug out of the electrical outlet).

• Only use rechargeable batteries which are recommended for this meter.

• Make sure that the rechargeable battery is correctly inserted.

• Never short-circuit rechargeable batteries, and never attempt to open a rechargeable battery.

• Do not expose rechargeable batteries to excessive heat or open fire.

• Do not expose rechargeable batteries to moisture and never immerse rechargeable batteries in water.

• After removing the rechargeable battery from the meter, close the battery compartment with the lid

(e.g. if the meter will not be used for a lengthy period of time).

• Never store rechargeable batteries together with metallic objects which might cause short-circuiting.

• Danger of leakage exists, especially in the case of empty rechargeable batteries. In order to prevent damage to the meter,

rechargeable batteries should be removed when fully depleted or in the case of lengthy periods of non-use.

• When not in use, rechargeable batteries should be stored in a cool place.

• Rechargeable batteries heat up during use and may become hot. Be careful not to burn yourself when removing rechargeable

batteries. Switch the meter off or wait until it has shut itself down, and then wait a bit longer until the rechargeable battery has
cooled down.

• Do not use rechargeable batteries which show any signs of damage such as discoloration or deformation of the housing.

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Other Notes

 Reproduction of product documentation or duplication of any excerpts therefrom necessitates the express consent of GOSSEN Foto- und

Lichtmesstechnik GmbH. This applies as well to duplication in any electronic format and translation into other languages.

 GOSSEN Foto- und Lichtmesstechnik GmbH reserves the right to make changes of any type without providing advanced notice.
 GOSSEN assumes no liability for damages resulting from incorrect use of the product.
 Documentation for your GOSSEN meter was prepared with the greatest of care. If you should nevertheless discover errors, or if you would

like to suggest any improvements, GOSSEN would be very pleased to hear from you.

Symbol for separate collection of recyclable materials / hazardous waste in European countries

This symbol indicates that this product must be disposed of separately. The following must be observed by users in European
countries:

• This product may only be disposed of separately at a designated collection point. It may not be disposed of with household trash.

• For further information contact your local dealer or waste disposal authorities.

The following symbols are used in order to make it easier to find additional information.

!!

Important safety precautions: Please read these safety precautions before using the meter in order to avoid damaging your

MAVOSPEC BASE.

!

Important information which you should also read before using your MAVOSPEC BASE

i

Tips: additional, useful information regarding use of your MAVOSPEC BASE



Reference to other information included in these operating instructions

M

Individual functions which can be configured in the menu

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1 Initial Startup

The MAVOSPEC BASE works with an interchangeable micro SD card for measured
value storage and a device-specific, rechargeable lithium-ion battery.
Use only the original V070A GOSSEN rechargeable battery included with the meter,
or available as an optional accessory, and the USB charger.

 Wait until your MAVOSPEC BASE has been shut down.
 Unlock the lid at the back of the meter with a Phillips head screwdriver, remove it

and pull it down and away.

1.1 Inserting the Memory card

 Remove the rechargeable battery from the battery compartment.
 Pull the micro SDHC memory card out of the included adapter.
 Insert the micro SDHC memory card into your MAVOSPEC BASE in

the recess provided for this purpose in the battery compartment.

 Push the card into the slot in the meter in the indicated direction.

1.2 Inserting the Rechargeable Battery

 Insert the battery into the compartment as shown in the figure. Make sure

that the + and – poles are correctly connected!

 Close the battery compartment lid and secure it with the screw.

Remove the lid.

Unlock.

Insert battery.

!

The MAVOSPEC BASE can also be operated without a memory card –
all measuring and display functions are still available and only measured value
storage at the meter is excluded.

Pull Micro SDHC

card from adapter.

Insert micro SDHC card
und push into the slot.

Lock.

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1.3 Charging the Battery

Connect the included USB cable first of all to the USB port on the meter and then to the USB socket on the power pack, and then connect the power
pack to a mains outlet.

The LED in the housing top indicates the charging status of the rechargeable battery. It lights up red as long as the battery is charging, and changes to
green when the battery has been fully charged. If the meter is switched on, a symbol appears at the battery display indicating that the device is being
externally supplied with electrical power. Charging time for a fully depleted battery is about 1½ hours.

1.4 Default Settings

The MAVOSPEC BASE is shipped with default settings which, based on our own experience, fulfill the basic requirements of most users. A complete
summary of the default settings and instructions on how to adapt them to your individual requirements are included in section 4 of these operating
instructions. Entered settings are retained until they have been changed again, or until the meter is reset to its default settings as described in section 4.4.

!

When connected to a PC, the device is switched to continuous operation and is supplied with electrical power from the PC’s USB port.

The meter can be operated with or without an inserted battery when connected to a PC or to the power pack.

An additional or replacement battery (3.7 V / 890 mAh) can be purchased from GOSSEN under order number V070A.

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2 The Meter and its Controls

2.1 View of the Meter

Cosine-Corrected
Measuring Probe

Charging Status LED

Display Panel

DATA Key

Ring Controller

Carrying Strap Holder

USB Port for Charging Battery or
for Data Transmission

MENU Key

Measurement Key

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Ring Controller

Up/down

Measured value view:

Report, data: scroll through the measured value list.

CIE: Switch amongst 1931 - 1960 – 1976.

CRI: Switch amongst table - bar – spider.

Menu view:

Scroll through the parameters list.

Left/right
Measured value view:

Switch amongst report - CIE - CRI – data.

Menu view:

Menu item selection, parameter display,
exit parameter display

2.2 Controls

DATA Key

Press key briefly:

Storage of the last measurement,
inactive in case of automatic storage

Press and hold:
Retrieve stored measured values,
stop current retrieval operation

MENU Key

Open menu,

exit menu

Measurement Key

Measurement:

Briefly press the measurement key.

Settings:
Acknowledge selection.

Device in sleep mode:
Switch device on.

!

After switching the device
on, the settings used for the
last work cycle are
displayed.

DATA + MENU Key

Pressing and holding both of these keys
simultaneously switches the device off.

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2.3 Displays

The battery icon in the information bar shows the charging status of the battery, or indicates operation with mains power or power from the PC. Even
when the device is switched off, the charging status LED indicates whether the battery is being charged or has already been fully charged.

Icons in the Information Bar and the Charging Status LED

Battery full

Operation with mains power or at PC

Battery partially charged

LED blinks red – battery is being charged

Battery nearly depleted – charge now

LED lights up green – battery is fully charged

LCD brightness can be adjusted to meet your individual needs within a range of 50% to 100% in 10% steps. In order to further extend rechargeable
battery operating time, display shutdown time can be adjusted after which LCD brightness is automatically reduced to 50% of the selected value. Unless
the device has been fully shut down, LCD brightness is returned to its originally selected value each time a key is pressed. A complete summary of the
default settings and instructions on how to adapt them to your individual requirements are included in section 4 of these operating instructions.

Status Bar

Shows the name of the active measured
value window or the measured value
memory’s directory, and time of day

Information Bar

Shows currently running actions such as
measurement, storage, loading, the file
name and the battery’s charging status

Measured Value Window

Shows the active measured value
window or the measured value
memory’s directories and files

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3 Functions

3.1 Switching the Meter On

Use the

measurement

key to switch the

meter on.

The meter

is initialized ...

… and the initial screen

appears with an empty

display field.

3.2 Measurements

Press the

measurement

key to start.

Possible from
any measured
value window.

A measurement

is triggered and

the measured
values appear

in the display

field.

Configurable Individual Functions in the MENU

M

Units of measure

lx / °C - fc / °F

Decimal separator

Comma/point

Auto int. time

On/off

Int. time

10 to 3000 ms
in 10 ms steps

Averaging

1 to 5

Auto save

On/off
Report

Display presetting

Spectrum

Color/simple

CIE standard

1931 / 1960 / 1976

CRI standard

Bar / table / spider

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3.3 Measured Value Windows

After the measurement has
been performed, its results
are displayed in the selected
measured value window.

The ring controller is used to
switch amongst the
individual measured value
windows.

The availability of the
individual measured value
windows und the parameters
they contain can be adapted
in a customer-specific
fashion in the presentation
menu (see section 4).
Individual measured value
windows or measured
values which are not
displayed can be activated
there.

A new measurement can be
triggered in each measured
value window.

Spectrum

 CCT
 E vis

Report

 E vis

 CCT

 Duv

 CRI

 ʎpeak

 ʎdominant

 Purity

 Flicker index

 Flicker [%]

 Flicker [Hz]

CIE1931

 x, y

CRI

 Bar graph
 Ra, R9

Data

 380 to 780 nm

CIE1960

 u, v

CRI

 Ra, Ra1 - Ra15

CIE1976

 u', v'

CRI

 Spider

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3.3.1 Spectrum

This measured value window displays the spectral power distribution of a light source and also provides information
concerning color temperature and illuminance. The window as well as the colored background for the spectral power
distribution can be shown or hidden with the help of the corresponding function in the presentation menu (see section 4).

CCT Correlated color temperature in Kelvin (K)
E vis Illuminance (lx/fc)
Graphic Standardized spectral power distribution (mW/m²/nm) over the entire measured waveband

3.3.2 Report

This measured value window lists all measured values calculated by the device from the measured spectral power
distribution. The window as well as the individual values can be shown or hidden with the help of the corresponding
function in the presentation menu (see section 4).

E vis Illuminance (lx/fc)
CCT Correlated color temperature in Kelvin (K)
Duv Delta uv – color temperature difference relative to the Planckian locus
CRI Color rendering index Ra

ʎ peak Wavelength (nm) of the maximum spectral radiant intensity (ʎp) – peak intensity
ʎ dominant Dominant wavelength

Purity Color purity
Flicker index Flicker index
Flicker [%] Flicker as a percentage
Flicker [Hz] Flicker frequency

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3.3.3 CIE

These measured value windows display the color coordinates in the respective CIE standard color system and depict
chromaticity graphically in the associated standard color diagram. The window as well as all or one preferred
standard color system can be shown or hidden with the help of the corresponding function in the presentation menu
(see section 4).

CIE 1931 Standard color system, graphic – chromaticity in the standard color diagram, color coordinates x, y
CIE 1960 Standard color system, graphic – chromaticity in the standard color diagram, color coordinates u, v
CIE 1976 Standard color system, graphic – chromaticity in the standard color diagram, color coordinates u', v'

3.3.4 CRI

These measured value windows display color rendering index Ra and individual indices R1 through R15 in

various formats. The window as well as all or one preferred display format can be shown or hidden with the help of
the corresponding function in the presentation menu (see section 4).

Bar graph Color rendering indices R1 through R15 as a bar graph as well as Ra and R9 as numeric values
Table Color rendering index Ra and color rendering indices R1 through R15 as numeric values
Spider Color rendering index Ra and color rendering indices R1 through R15 as a spider graph

3.3.5 Data

This measured value window displays irradiance either as original data from the sensor or as data interpolated to
even 5 nm steps. The window as well as the preferred display format can be shown or hidden with the help of the
corresponding function in the presentation menu (see section 4).

Wavelength (nm), associated irradiance (mW/m²/nm)

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3.4 Measured Value Memory

The MAVOSPEC BASE has an interchangeable micro SDHC memory card in the battery compartment to which measured values can be saved either
automatically or manually. Manual saving is selected as a default setting. The respective memory modes can be selected in the memory menu (see
section 4.6). Measured values are saved in the CSV data format, which can be opened with Excel and other programs for convenient further processing.

3.4.1 Saving Measured Values

Manual saving

Briefly pressing the DATA key saves the values from the last measurement.

Automatic saving

The value is saved automatically after measurement has been completed.

A CSV file using the time of day as a file name 10-58-22.CSV is saved to the respective day file (yy-mm-dd) 15-12-23.

3.4.2 Loading and Deleting Saved Measured Values

The memory menu is opened or exited by pressing and holding the DATA key.

micro SDHC card

yy-mm-dd

Navigate to the folder with the

ring controller.

..

hh-mm-ss.CSV

hh-mm-ss.CSV

hh-mm-ss.CSV

Navigate to the file

with the ring

controller.

Press the

measurement key.

The menu for

loading or deleting

the file appears.

Navigate to the desired command

with the ring controller ...

Load

Delete

… and acknowledge by pressing the

measurement key.

Load: The measured value appears in

the measured value windows.

Delete: The measurement is deleted.

Briefly pressing the

measurement key

opens the folder.

Pressing and holding the

measurement key accesses

the menu for opening or

deleting the folder.

18 Gossen Foto- und Lichtmesstechnik GmbH

4 The Menu

This chapter expands upon the above described functions and explains the great variety of options for default settings and presets offered by the
MAVOSPEC BASE.

4.1 Overview

General

Default Setting

Options

Information

LCD brightness (%)

100

100 - 90 - 80 - 70 - 60 - 50

Sensor no.

Display off (min.)

2

5 - 4 - 3 - 2 -1 - 0.5 - off

Serial no.

Device off (min.)

4

10 - 5 - 4 - 3 - 2 - 1 - off

Software rev.

Language

German

English - German

Hardware rev.

Time/date

00:00 01.01.2015

Product ID

Settings

Temperature

Units of measure

lx / °C

fc / °F - lx / °C

Batt. voltage

Decimal separator

, (comma)

. (point) - , (comma)

Hour format

24h

24h - 12h

Date format

dd

dd.mm.yyyy - mm/dd/yyyy - yyyy-/mm/dd

Default settings

Cancel - Reset

Measurement

Auto int. time

On

Off - On

Int. time

10 to 3000 ms in 10 ms steps

Averaging

1

1 - 2 - 3 - 4 - 5

Notification

Sound

Graphic - Sound

Dark adjustment

Cancel - Execute

Memory

Auto save

Off

Off - On

Spectrum

5 nm

Off – 5 nm - Original

Presentation

Spectrum

Color

Off - Color - Simple

Report

E vis - CCT - CRI ­Flicker Index - % - Hz

E vis – CCT – Duv – CRI - ʎpeak - ʎdominant – Purity – Flicker Index –
Flicker [%] – Flicker [Hz]

CIE

All

Off - All – 1931 – 1960 - 1976

CRI

All

Off - All - Bar – Table - Spider

Data

5 nm

Off – 5 nm - Original

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4.2 Navigation – Setup

Press the MENU key to open the main menu.

Use the ring

controller ...

to select the desired

menu.

Use the ring

controller ...

to navigate through

the user settings.

Use the ring

controller ...

to select a submenu.

Use the ring

controller ...

to display values.

Use the ring

controller ...

to select the desired

value.

Use the ring

controller ...

to navigate through

the value settings.

Use the ring

controller ...

to select the desired

setting.

Use the

measurement key ...

to acknowledge.

Use the ring

controller ...

to return to the

submenu.

Press the menu key to exit the main menu at any time.

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4.3 MENU – General

LCD Brightness (%)

Display brightness can be adjusted to suit the respective requirements. Minimal display brightness results in low
current consumption and increases availability of the meter during battery operation.

 LCD brightness (%) 100 - 90 - 80 - 70 - 60 - 50

Display Off (min.)

In order to further extend battery operating time, a display shutdown time can be selected. If none of the meter’s
controls are activated during this time, LCD brightness is automatically reduced to 50%. Activation of any key returns
LCD brightness to the level selected as described in section 4.3.1. All measured values and settings are retained.

 Display off (min.) 5 - 4 - 3 - 2 - 1 - 0.5 - Off

Device Off (min.)

The meter is switched off if none of the controls are activated during the selected period of time. All measured values and settings are fist saved and
are retained until the meter is switched back on again by pressing the measurement key, M.

 Device off (min.) 10 - 5 - 4 - 3 - 2 - 1 - Off

Language

The meter’s menu can be set to the desired language.

 Language English - German

Time/Date

The meter displays time of day in the status line and uses it as a file name for the measured value memory, which additionally uses the date as a
designation for the day file. If the battery is depleted or removed for the purpose of replacement, the integrated real-time clock continues to run for
approximately 12 hours before it stops. In order to assure that date and time are retained for as long as possible, it’s advisable to recharge the
battery after lengthy periods of use.

 Time, date 00:00 01.01.2016 to 23:59 31.12.2099

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4.4 MENU – Settings

All settings apply to the display at the device as well as the stored measured value file. Where the decimal separator and date are concerned, country
specific adaptation may be required in order to assure that the CSV file is read in correctly by the respective software program.

Units of Measure

Units of measure can be switched from the metric system to the imperial system. Illuminance in Lux (lx) is then changed to
foot-candles (fc) and temperature is changed from degrees Celsius (°C) to degrees Fahrenheit (°F).

 Units of measure fc / °F - lx / °C

Decimal Separator

The decimal comma (,) is used in some countries as the decimal separator, and the decimal point (.) in others.

 Decimal separator . (point) - , (comma)

Hour Format

Some countries use a 24 hour clock (24h), and others use a 12 hour clock (12h) together with the abbreviations a.m. (ante meridiem) for before noon
and p.m. (post meridiem) for afternoon.

 Hours 24h - 12h

Date Format

The date is written differently in the various countries. The following settings are possible:

 Date format dd.mm.yyyy (day.month.year) - mm/dd/yyyy (month/day/year) - yyyy/mm/dd (year/month/day)

Default Settings

The meter is reset to the default settings described in section 4.1 but date and time are retained.

 Default settings Cancel - Reset

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4.5 MENU – Measurement

The measuring range, and thus the sensitivity of the spectrometer, are controlled by means of integration time, i.e. the time during which the sensor
collects light. The brighter the light source, the shorter integration time must be, and vice versa. In this respect it must be assured that the sensor is not
saturated even during the shortest integration time. It may be necessary to increase distance to the light source.

Auto Int. Time

The meter can automatically adjust integration time, and thus the measuring range as well, to prevailing measuring
conditions. Automatic determination of integration time should only be deactivated by experienced users, after which
integration time must selected manually.

 Auto int. time Off - On

Int. Time

The integration time used for the last measurement is displayed in this menu, and is continuously overwritten if automatic
selection of integration time has been activated. When automatic selection of integration time is deactivated, integration
time is selected manually in this menu.

 Int. time (ms) 10 to 3000 ms in 10 ms steps

Averaging

In the case of fluctuating light sources, averaging can be activated in order to obtain more stable measured values. The meter conducts the specified
number of measurements and generates a mean value from all of the results. Measurement takes longer when averaging is activated.

 Averaging 1 - 2 - 3 - 4 - 5

Notification

The beginning of each measurement can be indicated by a brief acoustic signal, or by the appearance of a red hourglass at the display. A long
acoustic signal is generated at the end of the measurement, or a green hourglass is displayed briefly. Sound or graphic can be selected depending
on the respective requirements.

 Notification Graphic - Sound

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Dark Adjustment

The meter is equipped with automatic dark stream compensation with temperature sensor, which is preset during setup at the factory. Dark
adjustment is usually unnecessary within the specified operating temperature range.

Dark adjustment can be conducted as follows, but the meter is reset to the factory default value when it’s switched off in order to prevent erroneous
measurements.

 Dark adjustment Cancel - Execute Please cover the sensor! Cancel - Adjust

4.6 MENU – Memory

Data storage to the micro SDHC memory card offers the following setting options.

Auto Save

The measured values for the last measurement are saved either manually by briefly pressing the DATA key, or
automatically after every measurement. The auto save function can be activated in this menu.

 Auto save On - Off

Spectrum

Storage of the spectral power distribution to the file can be either deactivated, or it can be interpolated to 5 nm steps or
with original sensor resolution.

 Spectrum Off – 5 nm - Original

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4.7 MENU – Presentation

The content and the availability of the individual measured value windows can be adapted to the user’s own specific requirements.

Spectrum

The following settings are available for the “Spectrum” measured value window:

 Spectrum Off - Color - Simple

Report

The individual measured quantities can be shown or hidden for the “Report” measured value window.

 E vis, CCT, Duv, CRI, ʎ peak, ʎ dominant, Purity, Flicker Index, Flicker [%], Flicker [Hz] On - Off

CIE

Various display formats can be selected for the CIE measured value window. The measured value window can be hidden,
all CIE standard color systems can be shown, or just one selected CIE standard color system can be shown.

 CIE Off - All - 1931 - 1960 - 1976

CRI

Various display formats can be selected for the CRI measured value window. The measured value window can be hidden,
all display formats can be shown, or just one selected display format can be shown.

• CRI Off - All - Bar - Table - Spider

Data

The “Data” measured value window can be hidden, or spectral power distribution can be displayed either interpolated to 5 nm steps or with original
sensor resolution.

 Data Off – 5 nm - Original

Gossen Foto- und Lichtmesstechnik GmbH 25

4.8 MENU – Information

Important device information is summarized in this menu. It includes the sensor number, the serial number, the software
version and the hardware version. This information is necessary if any questions regarding the product should arise, or if a
malfunction should occur. Battery voltage and the temperature of the measuring probe appear in this menu as well.

5 USB Port

The meter’s USB port is located on the bottom of the housing. The meter is connected to a PC via the USB interface cable, and the PC detects the
integrated micro SDHC memory card as a removable data storage medium. The measurement files stored in CSV format can then be easily opened,
copied, moved or deleted. As long as the meter is connected to the PC, it’s supplied with electrical power via the USB port and is not switched off.

If the meter is connected to the power pack via the USB interface cable, the integrated battery is charged as described in section 1.3. Charging via the

PC’s USB port takes a long time and is not recommended.
The open protocol for device control and data communication permits incorporation into the user’s own applications. The interface description and an

associated demo application can be downloaded from the MAVOSPEC BASE product page at www.gossen-photo.de.

6 Firmware Update

The sustainable device concept is open to future function expansions and amendments to the applicable standards. If necessary, new firmware versions
will be made available by GOSSEN, which the customer can install to the device himself. After updating the firmware, the meter is then fully up to date.
User settings remain unchanged. Updating instructions and new firmware can be downloaded from the MAVOSPEC BASE product page at

www.gossen-photo.de.

26 Gossen Foto- und Lichtmesstechnik GmbH

7 Documenting Measured Values

A Microsoft Excel file with various sample templates for reports is included in the integrated micro SDHC memory card. The individual elements can be
adapted as desired, and new templates can be created. They access the “Data” spreadsheet, into which the stored measured value files can be read in
automatically after clicking a button, or a measurement can be started with the connected meter. The report can then be saved as a PDF file by clicking
a button.

The current version of the Microsoft Excel file is available for download from the MAVOSPEC BASE product page at www.gossen-photo.de.

8 Practical Tips

A broad range of information regarding measured quantities, measuring methods, applications and photometry standards, as well as support in
selecting a suitable meter, is included in the Photometry Compendium. The compendium can be downloaded under Hints & Guides under the heading
Light Measuring at www.gossen-photo.de, or requested from GOSSEN as a printed version.

Gossen Foto- und Lichtmesstechnik GmbH 27

9 Factory Calibration

The MAVOSPEC BASE with intuitive user interface is one of the most accurate and reliable spectrometers in its class, and
reflects the most up-to-date technology available on the market. Like all other precision light meters, this product also requires
regular maintenance, recalibration and firmware updates in order to continuously fulfil performance capabilities within the
tolerances and specifications stipulated by the manufacturer. Depending on conditions of use, a calibration interval of 12 to 24
months is recommended.

10 Service

The device does not require any special maintenance if used in accordance with the operating instructions. If the outside of the device becomes
contaminated during use, clean the surface of the housing with a slightly moistened cloth. Avoid the use of cleansers, abrasives or solvents.

If at any time your meter does not function to you full satisfaction, please contact us or send it to us at:
GOSSEN Foto- und Lichtmesstechnik GmbH I Lina-Ammon-Str.22 I D-90471 Nuremberg I Germany

Phone: [phone] I Fax: [phone] I e-mail: [e-mail] I www.gossen-photo.de
Customers outside of Germany are requested to contact their authorized dealer, whose address can be found on our website.

28 Gossen Foto- und Lichtmesstechnik GmbH

11 Error Messages

The error messages listed below may appear during operation and are displayed in the information bar.

Error Message

Situation

Cause

Elimination

Faulty calibration data

Initial window

Calibration data memory illegible or
faulty

If this error occurs several times after a
restart, please send the meter for repair.

Device not calibrated

Measured value window

No calibration data available

SD card error

Initial window or save/load
measurement

SD card cannot be accessed

Insert the SD card or examine it at the PC
and reformat it if necessary (FAT16).

File error

Save/load measurement
File cannot be accessed

Folder error

Folder cannot be accessed

Saving not permitted

Save measurements

The measurement has already been
saved or is outside of the valid
measuring range.

Signal too weak

After performing a
measurement

The measurement signal is too weak.

Reduce distance to the light source.

Signal too strong

The measurement signal is too strong.

Increase distance to the light source.

Battery almost dead

Measured value window

Battery has not been charged on time.

Charge the battery or supply the device
with electrical power from the power pack of
the PC.

3 brief acoustic signals

Any time

Battery dead

Gossen Foto- und Lichtmesstechnik GmbH 29

12 Technical Data

Sensor Technology, Measuring Uncertainty

Sensor

CMOS image sensor, 256 pixels

Diffusor light-entry surface

7 mm diameter

Distance, diffuser to surface to be measured

25 mm

Error limit, cosine correction

< 3% (comparable with the f2 failure of a class B device according DIN 5032-7)

Spectral range

380 … 780 nm

Full width at half maximum (FWHM)

< 15 nm (typically 12 nm)

Physical resolution

~ 1.72 nm

Digital resolution

16 bit

Wavelength reproducibility

+ 0.5 nm

Integration time

Automatic, manual, 10 … 3000 ms in 10 ms steps

Signal-to-noise ratio

1000:1

Spurious light

-25 dB

Dark stream compensation

Automatic with integrated temperature sensor

Measurement uncertainty, illuminance

Standard light type A, 2856 K

@ 1000 lx

+ 3 %

Measurement uncertainty, chromaticity

Reproducibility, chromaticity

+ 0.0005

Measurement uncertainty, CCT

+ 2%

Measurement uncertainty, CRI

+ 1.5%

Measurement uncertainty, flicker

+ 1.5%

Photometry

Measuring functions

Illuminance

10 … 100,000 lx

Color temperature (K)

Duv – color temperature difference relative to
the Planckian locus

Color rendering index Ra, R1 to R15

CIE 13.3

ʎpeak – peak wavelength

ʎdominant – dominant wavelength

CIE 15

Purity – color purity

CIE 15

Chromaticity coordinates

CIE 1931 [x,y], CIE 1960 [u,v], CIE 1976 [u',v']

Flicker index

0.00 ... 1.00

Flicker as percentage (%)

0% ... 100%

Flicker frequency (Hz)

2 ... 1000 Hz

Units of Measure

lx / °C - fc / °F, selectable

30 Gossen Foto- und Lichtmesstechnik GmbH

Operation, Interfaces, Memory

Display

2.1" TFT color display, 320 x 240 pixels, brightness adjustable from 50% to 100%,
shutdown adjustable from 0.5 … 5 min. or off

Controls

3 keys, ring controller

Languages

German, English

Interface

USB 2.0, data transmission, battery charging, open interface protocol

Data storage

4 GB micro SDHC memory card, manual and automatic memory modes, CSV data format,
memory occupancy per measurement: 2 kB, per thousand measurements: 2 MB

Power Supply

Mains power pack

100 … 240 V AC (50/60 Hz) 0.15 A, USB socket: 5 V DC, 1 A

Rechargeable battery

Li-ion, 3.7 V, 890 mAh, replaceable

Charging time with power pack

1.5 hours

Operating time with rechargeable battery

> 8 hours continuous operation

General

Dimensions

139 x 60 x 30 mm

Weight

150 g (meter with battery and memory card)

Operating temperature

+5 to +40° C

Storage temperature

-20 to +70° C

Scope of delivery

Meter, sensor cover cap, 4 GB micro SDHC memory card with SD adapter, V070A rechargeable
battery, power pack, USB interface cable, aluminum case, neoprene sheath, carrying strap,
calibration report, operating instructions in German and English

Optional Accessories

Replacement battery (V070A)

Li-ion, 3.7 V, 890 mAh

Gossen Foto- und Lichtmesstechnik GmbH 31

EU KONFORMITÄTSERKLÄRUNG

EU DECLARATION OF CONFORMITY

Hersteller / Manufacturer: GOSSEN Foto- und Lichtmesstechnik GmbH
Anschrift / Address: Lina-Ammon-Str. 22

D-90471 Nuremberg, Germany

Produktbezeichnung / Product designation: Spektrometer / Spectrometer

Typ / Type: MAVOSPEC BASE

Der oben beschriebene Gegenstand der Erklärung erfüllt die ein­schlägigen Harmonisierungsrechtsvorschriften der Union, nach­gewiesen durch die vollständige Einhaltung folgender Normen:

The object of the declaration described above is in conformity with the
relevant Union harmonization legislation, proven through complete
compliance with the following standards:

Nr. / No.

Richtlinie

Directive

2014/35/EU

Bereitstellung elektrischer Betriebsmittel zur Verwendung
innerhalb bestimmter Spannungsgrenzen auf dem Markt

Making available on the market of electrical equipment designed
for use within certain voltage limits

Norm / Standard: EN 60950-1 : 2006 + A11:2009 + A1:2010 + A12:2011 + AC:2011

Nr. / No.

Richtlinie

Directive

2014/30/EU

Elektromagnetische Verträglichkeit

Electromagnetic compatibility

Norm / Standard: EN 61326-1 : 2013-07

Nürnberg, 15 Juli 2016
___________________________________________________ _____________________________________

Ort, Datum / Place, Date Geschäftsführer / Managing Director

Diese Erklärung bescheinigt die Übereinstimmung mit den genannten
Richtlinien, beinhaltet jedoch keine Zusicherung von Eigenschaften. Die
Sicherheitshinweise der mitgelieferten Produktdokumentationen sind zu
beachten.

This declaration certifies compliance with the above mentioned directives,
but does not imply any warranted characteristics. The safety precautions
included in the product documentation furnished with the product must be
adhered to.

32 Gossen Foto- und Lichtmesstechnik GmbH

Printed in Germany - Subject to change without notice

GOSSEN Foto- und Lichtmesstechnik GmbH I Lina-Ammon-Str.22 I D-90471 Nuremberg I Germany
Phone: [phone] I Fax: [phone] I e-mail: [e-mail] I www.gossen-photo.de