Kimo Luxmeter LX 100 Operation & User’s Manual

1 Introduction...........................................................................................................................................4 2 General information..............................................................................................................................4 2.1 Photometric values.......................................................................................................................4 3 Operating principle...............................................................................................................................6 3.1 Keyboard presentation..................................................................................................................6 4 Setting..................................................................................................................................................7 4.1 Screen control...............................................................................................................................7 4.2 About.............................................................................................................................................7 5 During measurement............................................................................................................................8 5.1 Range............................................................................................................................................8 5.2 Illuminance....................................................................................................................................8 5.3 Averaged illuminance....................................................................................................................8 5.4 Relative illuminance......................................................................................................................9 6 Running informations.........................................................................................................................10 6.1 Over-range..................................................................................................................................10 6.2 Power source..............................................................................................................................10 7 Maintenance.......................................................................................................................................10 7.1 Servicing.....................................................................................................................................10 7.2 Regular checking........................................................................................................................10 7.3 Batteries replacement – adaptors...............................................................................................10 8 Main specifications.............................................................................................................................11 8.1 Range details..............................................................................................................................11 8.2 Specifications..............................................................................................................................11 8.3 Standard reference.....................................................................................................................11 9 Delivery and packaging......................................................................................................................12

It displays result in Lux or foot candles (footcandle) and provides: Instantaneous measurement Display illuminance for local measurements With timed measurement : Illuminance min/max values display Illuminance averaged value calculation In addition : It includes a pause function to eliminate any unrepresentative and unwanted illuminance or just to memorize on the screen a local result. It allows a relative measurement to reference point for the quantification of increase illuminance or decrease illuminance. Data are saved when the instrument is stopped or in case of battery failure.. Its sensor is composed by a silicium photodiode, which spectral response is the photopic curve according to CIE standard. LX 100 instrument is mainly an efficient and easy- to-use instrument : with small size, it has a large display with a resolution of 64*128 pixels, and involving a very high technology. 2 General information 2.1 Photometric values Photometric values are values which allows to define the action of electromagnetic radiation on visual function of the eye of an observer. The average standard eye, adopted by theCIE (International Commission on Illumination), is defined by a function on spectral efficiency which is relative to spectral for daytime vision or photopic. Luxmeter Photometer destined to measurement of illuminance, it is equipped with a photo-electric detector and very often a silicium photodiode coupled with a filter for modify its response to be close-in the most possible of the function of reference V(λ) defined in the CIE. 4 Photopic curve of spectral sensitivity of human eye during diurnal vision

radiated throughout the area by this source. It is expressed in lumens (lm).. Luminous intensity The light intensity is the luminous flux emitted per unit of solid angle in a given direction.. It is measured in candelas, equivalent to 1 lm / sr. Luminance The luminance of a source is the ratio between luminous intensity emitted in one direction and the apparent surface of the luminous source in the considered direction. Luminance is expressed in candelas per square meter (cd/m2). Illuminance Illuminance of a surface is the ratio of the luminous flux received at the area of the surface. Its unit is the lux, equivalent to 1 lm/m2. It is also expressed in footcandle (fc) according the ratio : 1 fc = 10.76 lux. LX100 instrument has been built to measure illuminance , it allows a measurement in lux or footcandle for illuminance levels below 10 lux, with 0,1 lux calculation accuracy and with 1% accuracy beyond until 150000 lux. Use : For each application, it's advisable to control means of measure to obtain valid and consistent results. Means of use of the instrument has at least so much importance on the result than the quality of the instrument. It is imperative to take account of the most important parameters including: 1. Position correctly the LX100 cell, according to adequate and representative plan of the current study. (eg: workstation) 2. Avoid illumination unrepresentative of the study area 3. Deviate significantly from the cell to avoid mitigation area of illumination. Functions « pause » and « relative level » integrated into LX100 instrument will allow to avoid these different problems. 5

3.1 Keyboard presentation When being switched on, “measurement screen” is displayed . From this screen, the operator has access to three others screens by pressing on keyboard; return to measurement screen is obtained by activating . 6 Function keys Directly associated with texts to displayed shown above on display, they measurement setting. Key “leaves current screen”. Screen key From measurement screens, gives access to other screens On/Off key 1 2 3 5 4 6 1. Screens representing the 3 different modes of measurement Instantaneous Average Relative 2. Configuration screens Brightness Informations Instrument offers 2 groups of screens

inform users. 4.1 Screen control To optimize display reading, the operator can : 1. Adjust brightness by pressing on and function keys. 2. Backlight LCD display for a better reading in a dark place. “No” means backlight is switch off and “Yes” it is switch on. In this last case, battery life is reduced by about 15%. 4.2 About... Information on origin of manufacture, standard references of the instrument and dates of last and next audits.. By Pressing and keys you can choose language : French or English. A press on or keys allows the choice measurement unit : Lux or Footcandle. Note : unit, lux or fc is independent of the used language. 7 + - Brightness About – English About - French

5.1 Range The digital processing of the instrument avoids for users choice of a range of measurement, LX100 instrument displays results of measurement in lux or fc on all of its dynamics. To cover the whole field, the screen automatically presents the different formats and units. 5.2 Illuminance From the start, the instrument measures and displays twice a second the instantaneous value of illuminance expressed in Lux or fc. This value gives information to users about illuminance local conditions. Min. and max. values completes the screen. User can at any time by pressing the keys :  : Reset minimum and maximum values  : Enable pause  : Continue measurement 5.3 Averaged illuminance Measurement principle : From the sampled data, the instrument calculates and displays on the measurement duration :  Instantaneous value at rate of two displays per second  Average value  Max and min values 8 Lux mode Footcandle mode Illuminance 1 x Launching of the stopwatch, it indicates seconds -minutes-hours-days (max : 03D00H00M00). First values, (average, max and min). During measurement, no other function is accessible. From the start screen, user accesses to the Moy measurement of illuminance on a period controled by stopwatch, he proceeds as follows: 1 x Access to Moy screen. Measurement is not launched yet. 1 x In case of poor readability, user can at this moment modify brightness and/or activate backlight. 1 x Stop of measurement, ''Reset'' is displayed.

follows : 1x : a sign RESET ? alerts the user of the future reset of memory backup. In case of change of mind, pressing or inhibits the action. 2x : Memory is erasing , visualized by the progress bar. Memory is erased, the operator can launch a new measurement. Stop of the instrument In case of stop of the instrument, intentionally or accidentally (low battery), results are saved automatically and systematically presented to the user before the launch of a new measure. 5.4 Relative illuminance Principle : To find the contribution on measurement result by the contribution or removal of a light source, LX100 instrument allows a relative measurement from an existing situation. For example: knowing the impact of deleting or adding a lighting (neon tubes) in a room. Proceed as follows : From the start screen, user accesses to the measurement of the illumination 1 x then 1 x : access to the screen. The function is not yet launched. 1x : Press Zr key – screen shows: Down : the instantaneous value of illuminance (598.9 lux here), it will serve as reference. It remains fixed and stored. At the top : the value of fluctuating instantaneous illuminance (1268 lux here) In the middle : in the panel marked R, it is the difference between instantaneous value displayed at the top and reference value stored down. This value can be positive or negative according to fluctuations of illuminance compared to the moment of memorization of the reference value ( key ) 9 Reset ? Erased data Rel Moy Inst Value displayed at the top of the screen represents instantaneous illuminance Moy Zr Example 1 Example 2 Reference illuminance Fluctuating instantaneous illuminance Relative illuminance Fluctuating instantaneous illuminance Relative illuminance Reference illuminance

6.1 Over-range Under conditions of measuring range excess, defined at 150,000 lux, an over-range pictogram appears. It comes fleetingly for an illuminance exceeding 150 000 lux . Displayed value will be 150.1 klux. 6.2 Power source When the instrument is equipped with alkaline batteries, it can operate for 72 hours minimum. A symbol informs the user about electric power remaining. If battery is low, less than 1 bar on the pictogram, the instrument stops measuring, saves current measurement and switches off. 7 Maintenance 7.1 Servicing The LX 100 conception allows a reduced maintenance, which consists in changing batteries and cleaning the instrument and sensor with a slightly dampened cloth. A particular attention must be paid to the white disc covering the silicon photodiode which surface must not have dirts or scratches 7.2 Regular checking Like most measuring instruments, it is strongly recommended to regularly control and calibrate LX100 instrument. The sensor sensitivity decreases depending on measurement durations and illuminance intensity. Return to the manufacturer each year will provide necessary metrological traceability. 7.3 Batteries replacement – adaptors Batteries : To replace batteries, open the back hatch and insert the 3 new batteries of type 1.5 V / AAA-LR3 inside. Warning : respect meaning of batteries. If storage is very long, remove batteries. Adaptor : If necessary for a long period of measurement, use a USB adaptor . Note: when using with an external power, it is recommended to remove batteries from LX100. An internal protection, however, allows to secure all if you forget it. 8 Main specifications 8.1 Range details lx value Display Unit lux resolution Minimum accuracy of calculation 0 to 10 0.1 to 10.0 lx 0.1 0.1 lux 10 to 99 10.0 to 99.9 lx 0.1 1% 100 to 999 100.0 to 999.9 lx 0.1 1% 1000 to 999 1000 to 9999 lx 1 1% 10000 to 99999 10.00 to 99.99 klx 10 1% 100000 to 150000 100.0 to 150.0 klx 100 1% fc value Display Unit fc resolution Minimum accuracy of calculation 0 to 1 0.00 to 1.00 fc 0.01 0.01 fc 1 to 99 1.00 to 99.99 fc 0.01 1% 100 to 999 100.0 to 999.9 fc 0.1 1% 1000 to 9999 1000 to 9999 fc 1 1% 10000 to 13940 10.00 to 13.94 kfc 10 1% 10

from 0.01 to 13940 fc Spectral response as per standard photopic curve V(λ) NF C 42 -710 class C. Error limit V(λ) (f1) < 10% True cosine evaluation (f2) < 6% Linearity (f3) < 3% Measurement capability 3 days – 03D00H00M Display Backlit LCD graphic 128x64. Working temperature from 0°C to +50°C Storage temperature from 0°C to +50°C Housing dimensions (without sensor) 120x58x34 mm Weight (housing+sensor+battery) 185 gr Digital electronic low drift Mini-USB plug for USB power supply adaptor Power supply 3 batteries 1.5V type LR3-AAA Battery life 72 hours min, continuous operation. Electromagnetic compatibility according to 89/336/CEE Conformity as per RoHS 8.3 Standard reference This instrument is based on recommendations and requirements of the NF C 42-710 standard, February 1988, C class 9 Delivery and packaging • LX100 housing with silicon photodiode sensor and glass filter correction. • Transport case • 3 batteries LR3-AAA • Calibration certificate • LX100 user manual 11