Gossen MetraWatt SECULIFE IM Bedienungsanleitung

GMC-I Messtechnik GmbH

Operating Instructions

SECULIFE | IM 15161

Luminance Monitoring 1/7.04

GMC-I Messtechnik GmbH

Key pad

SECULIFE IM

Light measuring probe

Display

Light sensor

USB Port

GMC-I Messtechnik GmbH

Page Page

1 Applications..............................................4

2 Display................................................... 5 5 USB Port –

2.1 The elements of the display..................... 5 Standard Software............ 12

2.2 Key pad................................................... 5

6Accessories................................ 13

3 SECULIFE IM Operation.................. 6 6.1 Standard equipment.....................13

3.1 Preparation............................................. 6 6.2 Optional accessories....................13

3.2 Duration of display - 6.3 Calibration Certificate...................13

Continuous operation.............................. 6

7 Servicing and Repairs................14

4 Functioning of the SECULIFE IM.... 7

4.1 Switching on –Making Measurement....... 7 8 Specifications..............................14

4.2 Selecting the desired measuring unit –

cd/m2or fL ......................................... 7 Declaration of conformity...........17

4.3 Overload signal........................................ 7

4.4 Memory functions..................................... 8

4.4.1 „HOLD“ Display Hold Function................. 8

4.4.2 „Mem“ - Storing measurement value

in memory........................................... 9

4.4.3 „Mem Edit“ - deleting a value in memory

and enter a new value....................... 10

4.4.4 „Mem Recall“ - Data Memory Recall....... 11

4.4.5 „Mem Clear“ - Clear memory.................. 12

GMC-I Messtechnik GmbH

1 Applications

The SECULIFE IM 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 SECULIFE IM 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 SECULIFE IA

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 ). The accuracy class for luminance

meters has been defined in the Standard Specification DIN 5032, Part 7. The SECULIFE IM 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

SECULIFE IM 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/m2= 0.2919 fL = 0.0929 cd/ft2

fL = footLambert 1 fL = 3.426 cd/m2= 0.3183 cd/ft2

1 cd/ft2= 10.76 cd/m2= 3.142 fL

GMC-I Messtechnik GmbH

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/m2fL- 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

GMC-I Messtechnik GmbH

3 Functioning of the SECULIFE IM

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.

3.2 Duration of Display –Continuous operation

If for approx. 4 minutes none of the keys of the SECULIFE IM 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.

GMC-I Messtechnik GmbH

4 Using the SECULIFE IM

4.1 Switching on –Making Measurement

Press the on/off key and the SECULIFE IM 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 SECULIFE IM 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/m2or fL

Use the key cd/m2fL 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.

GMC-I Messtechnik GmbH

4.4 Memory Functions

The SECULIFE IM 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 SECULIFE IM to the measuring

function.

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

Hold

GMC-I Messtechnik GmbH

4.4.2 „Mem“ – Storing measurement value in memory

The measurement value to be memorized is locked by the Hold

key in the display. By pressing the key Mem you will enter the

value to be stored in the next free memory location. An acoustic

signal confirms „value stored in memory“.

The display indicates the stored measurement value alternating

with the number of the memory location for a few seconds.

Subsequently, the SECULIFE IM will return to the measuring

function. When the memory is completely filled, the display will

show „FLL“.

Hold

Mem

GMC-I Messtechnik GmbH

4.4.3 „Mem-Edit“ – Deleting a value in memory and entering a new value

The Mavolux offers the function „Mem Edit“ for correcting a

value stored in the memory. Measure again, press the Hold key

and the new value is locked. Then by pressing one of the range

keys, you can browse through the memory.

At the memory location to be

corrected press now the key

Mem. An acoustic signal confirms

„value stored in memory“. In the

display the measurement value

stored is indicated for a few

seconds alternating with the

number of the memory location.

Subsequently the

SECULIFE IM will return to

measuring function.

Hold

Mem

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