LUX/FC Light Meter TM-720
Contents
1. 6 characteristics 80 X259 Power Suppl 2 batteries 1 5V AAA MN2400 PPY LRO3 Battery life About 200 hours Dimensions 133 L x48 W x23mm L Hmm 5 3 L x 1 9 W x0 2 L inch Weight 250g include battery A User s manual carrying case ccessories 1 5V battery 2 4 TENMARS TM 720 6 Operation 6 1 LUX FC Button Select LUX FC 6 2 CAL ZERO Button Calibration of 1000 LUX 1 Prepare the 2856 1000 Lux light source 2 Press CAL button and POWER button more than 2 second the LCD will display CAL 3 Unlocks buttons 4 Press CAL button again more than 2 second the meter will shut down 5 Correct succeed e ZERO Button Press the ZERO button for the zero adjustment if any digits appear on the LCD screen when the light sensor cap is not attached CAP will be shown on the screen Make sure that it is attached to the light sensor TENMARS TM 720 6 3 MAX MIN AVG Button Press MAX MIN button simultaneously Lockup data maximum and average and minimum value of measure data Press the MAX MIN button for more than 1 second to disable this feature 6 4 Data Hold Button Freezes the reading present on the LCD screen at the moment the button is pressed 6 5 Power Button Press the 8 button more than 2 second to power on the meter 6 6 Auto Power To save battery life the meter powers down automatically after approximately 12 minutes of inactivit2. TENMARS LUX FC Light Meter TM 720 User s manual CE HB2TM720MIO1 TENMARS ELECTRONICS CO LTD CONTENTS 1 Description s iere ee eee 1 2 Safety 1 3 etel ee iat enun 2 Ay features i operire paaa Rb 3 5 4 6 Operation isikia ha 5 6 1 LUX FC 5 6 2 CAL ZERO 5 6 3 MAX MIN AVG Button 6 6 4 Data Hold button 6 6 5 6 6 6 auto 6 6 7 Enable disable auto power off 6 7 Instrument 7 8 Relative SPECTRAL Sensitivity 8 10 Recommended Levels of Illumination 10 11 Battery 12 12 End of life aite tee 12 TENMARS TM 720 1 Description Measures light from visible luminaries equipped fluorescent metal halide high pressure sodium and incandescent sources 2 Safety Precaution Be extremely careful for the following conditions while measuring Do not operate the meter under the environment with explosive gas material combustib
3. eter is called the illumination of one lumen 1 FC 10 764 LUX 1 LUX 0 09290 FC therefore Nbr of foot meter candlelight Nbr of Lumen Area sq foot or sq meter Nbr of LumenzNbr of foot or meter x area 2 TENMARS TM 720 B Features Overload Indication LCD screen will show OL on the upper left hand corner Low battery Indication Sampling Rate 2 5 times per second for digital display Spectral response close to CIE luminous spectral efficiency Cosine Angular corrected According to JIS C 1609 1993 and CNS 5119 general A class Specifications Measuring lights source all the visible light Measuring intensities of illumination in Lux or footcandles Many applications include Warehouses factories office buildings restaurants schools library hospitals photographic many video parking garages museums art galleries stadiums building security Data hold HOLD Maximum Average Minimum Hold MAX MIN Zero adjustment ZERO Auto power off and disable function Auto ranging TENMARS TM 720 5 Specifications 4000 count maximum display Display 3999 Sensor Silicon photodiode and filter Measuring 400 4000 40000 400000 Lux Range 40 400 4000 40000 Footcandles 3 3Lux 0 500Lux 3 up 501 Lux Calibrated to standard Accuracy incandescent lamp 2856 K 8 other visible light source Angle deviation 30 e from cosine 60
4. ices designing drawing 1500 to 750 ed Offices conference rooms 750 to 300 computer rooms Workrooms corridors 300 to 100 stairways restrooms 75 to 30 Indoor emergency stairways Factories Muminance Tux Place 3000 to 1500 Where such work as assembling inspecting testing selecting extremely precision visual work Assembling inspecting 1500 to 750 testing selecting precision visual work Assembling inspecting 750 to 300 testing selecting and visual ordinary work 300 to 150 Wrapping and packing 75 to 30 Indoor emergency stairways 10 TENMARS Tw 720 Schools Illuminance lux Place Precision drawing or drafting 1500 to 300 precision experimenting library 750 to 200 Classrooms library reading rooms staff rooms gymnasia Lecture halls assembly rooms 300 to 75 locker rooms corridors stairways and restrooms 75 to 30 Warehouses and emergency stairways 10102 School passages 11 TENMARS Tw 720 11 Battery Replacement If the symbol E appears on the LCD please replace the battery immediately 1 Remove the battery cover 2 Replace the battery 3 Install the battery cover Z io e CS EE ES m 12 END OF LIFE Caution this symbol indicates that equipment and its accessories shall be subject to a separate collection and correct disposal TENMARS Profess
5. ional Electrical and Environment Test amp Measurement Instruments LED light meter Temperature amp Humidity meter Infrared Thermometer Sound level meter Light meter EMF meter UV Light meter RF meter Hot wire Anemometer CO meter Anemometer Lan cable tester meter Solar power meter Radiation meter Clamp meter Multimeter Phase Rotation test Digital Insulation tester Our products of high quality are selling well all over the world TENMARS ELECTRONICS CO LTD 6F 586 RUI GUANG ROAD NEIHU TAIPEI 114 TAIWAN E mail service tenmars com http www tenmars com
6. le gas material steam or filled with dust In order to avoid reading incorrect data please replace the battery immediately when the symbol appears on the LCD In order to avoid the damage caused contamination or static electricity do not touch the circuit board before you take any adequate action Operating Environment Indoors use This instrument has been designed for being used in an environment of pollution degree 2 Operation Altitude Up to 2000M Operating Temperature amp Humidity 5 C 40 096 80 RH Storage Temperature amp Humidity 1 TENMARS TM 720 10 C 60 0 709 RH EMC EN61326 1 2006 61000 4 2 2008 IEC 61000 4 3 2006 2007 3 Preface The flux of light received in a unit area of a certain side being shown is popularly known as illumination The measuring unit in both United Kingdom and America is known as footcandles light but in Europe it is also known as meter candlelight One foot candles light is the illumination of light that falls on one side which is one foot away from a one foot candlelight and exactly intersecting with the light Its abbreviated form is written as 1 1 Lm ft similarly one meter candlelight is the illumination of light that falls on a side which is one meter away from a one meter candlelight and exactly intersecting the light It is also called Lux i e the flux of light being received in each sq m
7. y 6 7 Enable Disable Auto Power Off Power Off by pressing the 8 button more than 2 second the LCD C symbol will disappear or enable 6 TENMARS TM 720 7 Instrument Description Photo detector cover Photo detector Display LCD Lux Fc button Calibration and ZERO button Data hold button Maximun Average minimum button Power Button ON OFF TENMARS TM 720 8 RELATIVE SPECTRAL SENSITIVITY The deviation from the comparative standards for luminosity is determined by JIS standard C 1609 1993 Peak sensitivity wavelength 550 Typ Ta 23 C V A 720 11311 380 440 500 560 620 680 740 RELATIVE SENSITIVITY 96 WAVELENGTH nm CIE luminous spectral luminous TENMARS TM 720 9 Attention Set for referring the testing of source of light is located at the right top end 0 degree of the light sensor ball plane Light Source 0 degree When the meter is not in use please keep the cap of the light sensor in its place to avoid the photo diode from wearing out When it is not in use for a long time please take the batteries away And avoid keeping itin a place of high temperature and humidity TENMARS TM 720 10 Recommended Levels of Illumination Suitable levels of illuminance According to the JIS standard Z 9110 1979 Offices Illuminance Off
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