Model LM-81LX - Calright Instruments
Contents
1. LM 81LX Illuminometer REED LM 81LX 4T LDN oe CE Instruction 4 2 Manual www reedinstruments com e 4 Table of Contents FOAtUIOS ic sckisescecesuecesasustialaczsazccs cuassdzeavscesssdacaiasdacyaiaccealdiedigaenees se 2 DPECIICATIONS Er a nn Ain ue 3 Instrument Descriptio sesei in Ath einen 4 Measuring Proc dur s 1525222682104 10e rurbrnenodt menton anasi asana 4 Additional FUNCHONS i528 ei ee M ae ile 4 5 FOl FUN CHOM sais npa ieee taapesd D eters 4 Data RECOM FUNGUO seeriana shed ni ronde burn 5 Auto POWET OFF tes eccbinehasteabuksniebescvevdbetiaseeiniluiivenetenankesteedenetyeres 5 Battery Replacement ne 5 Features e Tiny bone shape with lightweight and small size case design are suitable for handling with one hand e Wristlet design provides extra protection to the instrument especially for user one hand operation e Exclusive photo diode and color correction filter light sensor spectrum meets C I E photopic e Built in microprocessor circuit assures excellent performance and accuracy e Concise and compact buttons arrangement easy operation e Memorize the maximum and minimum value with recall e Lux Foot candle selectable by pressing button on the front panel e Zero button design makes light meter calibration e Hold function to freeze the current reading value For service on this or any other REED product or information on other REED products contact REED In2. alue will be lost and then revert to the REC function continuing to record Auto Power Off In order to prolong the battery life the instrument has Auto Power Off function The meter will switch off automatically if no buttons are pressed for around 10 minutes Battery Replacement 1 When the left corner of the LCD display shows the low battery symbol f this indicates that replacement of the battery is then needed However specification measurements could still be taken for another few hours before the meter becomes inaccurate 2 Open the Battery Cover 8 page 4 at the back of the meter and remove the battery 3 Replace with a 9V battery alkaline or heavy duty type and reinstall the cover For service on this or any other REED product or information on other REED products contact REED Instruments at info reedinstruments com GT wreeumstruments com 5 Notes GTS vreedinstruments com 6
3. o achieve this place the light sensor end of the meter under a desktop or flat surface to block any light Press the Unit Zero Button 4 page 5 setting the meter indication to zero e The zero point can drift due to environment temperatures battery power as well as various other reasons It is recommended that the zero be checked frequently using the above procedure Additional Functions Hold Function Pressing the Hold Button 2 above will freeze the current value with a HOLD symbol on the display Press again to release the hold function continued GT wreeumstruments com Data Record Function 1 The Data Record function records amp displays the maximum and minimum reading values Start the Data Record function by pressing the Max Min Button 3 page 4 once There will be a REC symbol on the display 2 With the REC symbol on the display a Press the Max Min Button 3 page 4 once and the Max symbol along with the maximum value will appear on the display b Press the Max Min Button again the Min symbol along with the minimum value will appear on the display c To exit the memory record function press the Max Min Button continuously for at least 2 seconds The display will revert to the current reading d To clear the Max Min value recorded by pressing the Hold Button 2 page 4 once The previously recorded Max Min v
4. struments at info reedinstruments com GE wreeumstruments com 2 Specifications General Specifications Display 13 mm LCD display Measurement Light Lux Foot candle Operating Humidity Max 80 RH Operating Temperature 0 to 50 C 32 to 122 F Over Input Display Indication of Power Supply 006P DC 9V battery Heavy duty type Power Consumption Approx DC 6 2 mA Weight 160g battery included Dimensions 156 H x 60 W x 33 D mm 6 14 x 2 36 x 1 29 Accessories Optional carrying case also available Model CA 52A Electrical Specifications 23 5 C we me om a Lux 1 800 to 20 000 Lux 10Lux 5 rdg 8 dgt 0 to 204 0 Fc Foot candle Fc 170 to 2 000 Fc Foot candle Ft cd Fc GT wreeumstruments com 3 Instrument Description 1 Power Button 2 Hold Button 3 Max Min Button 4 Zero Button 5 Lux Ft cd button 6 Light Sensor 7 LCD display 8 Battery Compartment Cover 9 Wristlet Measuring Procedures 1 Power on the instrument by pressing the Power Button 1 above 2 Position the Light Sensor 6 above directly under the light source Meanwhile the light reading value will be displayed on the LCD display 3 Press the Lux Ft cd Button 5 above to select measuring unit Lux or Ft cd Zero Offset Adjustment of Light Function e For best results you should zero the light sensor prior to use in a dark environment T
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