User guide for lux meter TM720
Contents
1. TENMARS LUX FC Light Meter TM 720 User s manual CE HB2TM720MI00 CONTENTS E 1 2 Safety Preca A ES 1 A gt cree emendo een 2 d leal 3 A nec 4 DO Sette DRE 5 Q1 ULBUX FGBUETGTT 5 6 2 AXGAL ZERO DUftOD oreet ert 5 6 3 MAX MIN AVG Button 5 64 Data Hold Dutton 6 6 95 6 6 05 6 6 7 Enable disable auto power off 6 T Instrument Description econtra E 8 Relative SPECTRAL Sensitivity 8 10 Recommended Levels of Illumination 10 11 Battery 12 TAE e E 12 TENMARS 1 Description Measures light from visible luminaries equipped fluorescent metal halide high pressure sodium and incandescent sources 2 Safety Precaution CAUTION Be extremely careful for the following conditions while measuring e Do not operate the meter under the environment with explosive gas material combustible gas material steam or filled with dust e In order to avoid reading incorrect data please replace the battery immediately when the symbol y appears on the LCD In order to avoid the damage caused by contamination or static electricity do not touch the circuit board before you take any adequate action Operating Environment Indoor2. cation Xl 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 EN 3 TENMARS TM 720 5 Specifications Display 4000 count maximum display 3999 Sensor Silicon photodiode and filter Measuring 400 4000 40000 400000 Lux Range of 40 400 4000 40000 Footcandles TM 209 209N Accuracy 3 3Lux 0 500Lux 3 up 501 Angle deviation from cosine characteristics Power Supply Battery life Dimensions Accessories 8 other visible li 5 3 L x 1 9 W x0 2 L inch Weight 250g include battery Lux Calibrated to standard incandescent lamp 2856 K ht source 30 12 2 batteries 1 5V AAA MN2400 LRO3 AM4 About 200 hours 133 L x48 W x23mm L Hmm User s manual carrying case 1 5V battery 2 EN 4 TENMARS Tu 720 6 Operation 6 1 LUX FC Button S
3. elect LUX FC 6 2 CAL ZERO Button e Calibration of 1000 LUX 1 Prepare the 2856 1000 Lux light source 2 Press CAL button more than 2 second LCD wiil 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 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 EN 5 TENMARS 184720 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 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 inactivity 6 7 Enable Disable Auto Power Off Power Off by pressing the g button more than 2 second the LCD symbol will disappear or enable EN 6 7 0NXONAg0N TENMARS Instrument Description Photo detector cover Photo detector Display LCD Lux Fc button Calibration and ZERO button Data hold button Maximun Ave
4. rage minimum button Power Button ON OFF EN 7 TENMARS 14 720 8 RELATIVE SPECTRAL SENSITIVITY The deviation trom the comparative standards for luminosity is determined by JIS standard C 1609 1993 Peak sensitivity wavelength 550 nm Typ Ta 23 C A ee TOO 500 560 620 680 740 RELATIVE SENSITIVITY WAVELENGTH nm CIE luminous spectral luminous EN 8 TENMARS 20 9 Attention e 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 O degree e 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 it in a place of high temperature and humidity EN 9 TENMARS 10 Recommended Levels of Illumination Suitable levels of illuminance According to the JIS standard Z 9110 1979 Offices Illuminance lux Place 1500 to 750 Offices designing drawing rooms 750 to 300 Offices conference rooms computer rooms 300 to 100 Workrooms corridors stairways restrooms 75to 30 Indoor emergency stairways e Factories Illuminance lux Place 3000 to 1500 Where such work as assembling inspecting testing selecting _ extremely precision visual work 1500 to 750 Assembling inspec
5. s 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 5C 40 0 80 RH Storage Temperature amp Humidity 10 C 60C 0 70 RH EMC EN61326 1 2006 IEC 61000 4 2 2008 IEC 61000 4 3 2006 2007 EN 1 TENMARS 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 Fc 1 Lmift 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 meter 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 Lumen Nbr of foot or meter x area EN 2 TENMARS 4 TM 720 Features Overload Indication LCD screen will show OL on the upper left hand corner Low battery Indi
6. ting testing selecting precision visual work 750 to 300 Assembling inspecting testing selecting and visual ordinary work 300 to 150 Wrapping and packing 75 to 30 Indoor emergency stairways EN 10 TENMARS TM 720 Schools llluminance lux Place 1500 to 300 Precision drawing or drafting precision experimenting library 750 to 200 Classrooms library reading rooms staff rooms gymnasia 300 to 75 Lecture halls assembly rooms locker rooms corridors stairways and restrooms 75 to 30 Warehouses and emergency stairways 10 to 2 School passages EN 11 TENMARS 11 Battery Replacement A If the symbol Er appears on the LCD please replace the battery immediately 1 Remove the battery cover 2 Replace the battery 3 Install the battery cover bm 7 7 Me 4m Me z E 7 A 12 END OF LIFE Caution this symbol indicates that equipment and its accessories shall be subject to a separate collection and correct disposal EN 12
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