Tenmars TM-721 User Manual Download Page 13

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TM-721/TM-720

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

75 to 30

Indoor emergency stairways



Factories

Illuminance (lux)

Place

3000 to 1500

Where such work as
assembling, inspecting testing,
selecting, extremely precision
visual work

1500 to 750

Assembling, inspecting,
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

Summary of Contents for TM-721

Page 1: ...LUX FC Light Meter TM 721 User s manual HB2TM7210001 ...

Page 2: ......

Page 3: ...6 1 LUX FC button 5 6 2 CAL ZERO button 5 6 3 MAX MIN AVG Button 6 6 4 Data Hold button 6 6 5 power button 6 6 6 auto power 6 6 7 Enable disable auto power off 6 7 Instrument Description 7 8 Relative SPECTRAL Sensitivity 8 10 Recommended Levels of Illumination 10 11 Battery Replacement 12 12 End of life 12 ...

Page 4: ...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 by 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 ...

Page 5: ...t 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 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...

Page 6: ...eneral 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 ...

Page 7: ... 01 0 1 1 10 Footcandles Accuracy 3 3Lux 0 500Lux 3 up 501 Lux Calibrated to standard incandescent lamp 2856 K 8 other visible light source Angle deviation from cosine characteristics 30 2 60 6 80 25 Power Supply 2 batteries 1 5V AAA MN2400 LR03 AM4 Battery life About 200 hours Dimensions 133 L x48 W x23 mm H 5 3 L x 1 9 W x0 2 H inch Weight 250g include battery Accessories User s manual carrying ...

Page 8: ... 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 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 ...

Page 9: ... 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 button more than 2 second the LCD symbol will di...

Page 10: ... TM 720 7 7 Instrument Description 1 Photo detector cover 2 Photo detector 3 Display LCD 4 Lux Fc button 5 Calibration and ZERO button 6 Data hold button 7 Maximun Average minimum button 8 Power Button ON OFF ...

Page 11: ...m the comparative standards for luminosity is determined by JIS standard C 1609 1993 Peak sensitivity wavelength 550 nm CIE luminous spectral luminous 0 10 20 30 40 50 60 70 80 90 380 440 500 560 620 680 740 V λ TM 721 100 RELATIVE SENSITIVITY Typ Ta 23 WAVELENGTH nm ...

Page 12: ...op end 0 degree of the light sensor ball plane 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 ...

Page 13: ... rooms 300 to 100 Workrooms corridors stairways restrooms 75 to 30 Indoor emergency stairways Factories Illuminance lux Place 3000 to 1500 Where such work as assembling inspecting testing selecting extremely precision visual work 1500 to 750 Assembling inspecting testing selecting precision visual work 750 to 300 Assembling inspecting testing selecting and visual ordinary work 300 to 150 Wrapping ...

Page 14: ...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 ...

Page 15: ... on the LCD please replace the battery immediately 1 Remove the battery cover 2 Replace the battery 3 Install the battery cover 12 END OF LIFE Caution this symbol indicates that equipment and its accessories shall be subject to a separate collection and correct disposal ...

Page 16: ...nt Instruments LED light meter Temperature 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 CO2 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 ...

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