Laser Distance Meter LDM70 User Manual
Contents
1. Indirect measurement using Pythagoras AdditionSubtraction Continuous Measurement Min Max Distance Tracking Display illumination and multi line display Beep indication Dust Protect Splash proof IP 54 History measurement records 10 Keyboard Type Super Soft Touch Long life Operating Temperature OFC ta 40 C 32 F to 104 F Storage Temp rature 10 C te 60 C 14 F to 140 F Battery Life up to 4 000 measurements Batteries Type AAA 2 x 1 54 Auto laser switch off after 0 5 min Auto instrument switch off after 3 min Dimension 115 48 x 28 mm Weight 135g Use a target plate to increase the measurement range during daylight or if the target has poor reflection properties in favourable conditions good target surface properties room temperature up to 10 m 33 ft In unfavourable conditions such as intense sunshine poorly reflecting target surface or high temperature variations the deviation over distances above 10 m 33 ft can increase by 0 15 mm m 0 0018 in ft 7 Troubleshooting Causes and Corrective Measures Code Cause Corrective measure 204 Calculation error Repeat procedure 208 Received signal too weak Use target plate measurement time too long Distance gt 70 209 Received signal too stron Target too reflective use target plate 252 Temperature too high Cool down instrument 253 Temperature too low Warm up instrument 255 Hardware error Switch on off the device several time2. Storage button Figure B LCD Display See figure C 1 Laser active 56798 2 Reference level front 3 Reference level rear i aw 4 Variable measuring functions o S 0 0 OO Hi __ Area measurement 3 _ 2 Ol Nooo i Volume measurement i wr ai Indirect measurement i ce Zap noong ha a hand Fant ston tim lt J Indirect second measurement 5 Single distance measurement _Uj i i O I r 6 Battery status Er I lein 7 Historical memory 8 Instrument error warning 9 Continuous measurement amp Max and Min measurement 10 First value display line Figure C 11 Second value display line 12 Summary line for last measure or calculation result 3 Initial Operation and Setting Switching On and Off EY switches on the instrument and laser Press this button longer to switch off the instrument The instrument switches off automatically after three minutes of inactivity Clear Button The last action is cancelled or the data display is cleared If in the mode of History storage press Storage button and Clear button simultaneously will clear all storage data in the memory Reference Level Setting See Figure D The default reference setting is from the rear of the instrument t i j fi a GAAR Press this button take the selection from the front edge p A special beep sounds whenever the reference setting is changed 3 i t After a re startup the reference returns automatica
3. 1 Safety INStruction ss 1esestseeee tees e eee e eee ee eee eeee anne eens 4 2 Start Up Pere E rere rere rere ee eee reer ee eee ee eer ee eee eee eee eee eee 6 g 3 Initial Operation and Setting eeeeeeeeeereeeereeerrreerrreern 8 Laser Distance Meter LDM 0 4 Measuring st tter treet teeter eee ener eee 10 Cl thila Ghee E ee ee ee 11 a 5 User Manual 7 Troubleshooting Causes and Corrective Measures 17 8 Measuring Conditions e eeeeeeeeeeeeeeeeeeeeeerrterrreeeerenn 18 9 Labelling teetttteeettttrtestrtrrtesrrrrrretrrrireeterrrreeenn 19 The compact and handy base model was specifically designed for indoor applications Shortcut and Soft grip keys for addition subtraction area and volume calculation make measuring fast and very reliable 1 Safety Instruction Permitted Use e Measuring distances e Computing functions e g areas and volumes Prohibited Use e Using the instrument without instruction e Using outside the stated limits e Deactivation of safety systems and removal of explanatory and hazard labels e Opening of the equipment by using tools screwdrivers etc as far as not specifically permi e Carrying out modification or conversion of the product e Use of accessories from other manufacturers without the express approval of CEM Technology e Deliberate or irresponsible behavior on scaffolding when using ladders when measuring near machines which are running or near parts of machines or installations which are unpro
4. Addition Subtraction Distance measuring The next measurement is added to the previous one The next measurement is subtracted from the previous one The last step is cancelled Return to the single distance measurement Area Measurement Press the Area Volume button The lt symbol appears in the display Press button to take the first length measurement e g length Press again to take the second length measurement e g width The result of the area measurement is displayed in the third line the individually measured values are displayed in lines 1 and 2 Volume Measurement For volume measurements push Area Volume button twice until the 7 indicator for volume measurement appears in the display Afterwards a press to takes first distance measurement e g length press to takes second distance measurement e g width The result of the area measurement from the values already measured is displayed in the summary line Press to takes the third distance measurement e g height The value is displayed in the second line The result of the area measurement is displayed in the third line the two previously measured values in lines 1 and 2 Indirect Measurement Indirect measurement determining a distance using 2 auxiliary measurements See Figure G e g when measuring heights that require the measurement of two or three measurements as following step Press this button once the display Z_ shows The distance to be measure
5. d flashes in the symbol a Aim at the upper point 1 and trigger the measurement After the first measurement the value is adopted Keep the instrument as horizontal as possible A Press to measurement the distance result of the horizontal point 2 The result of the function is displayed in the summary line Figure G Indirect Measurement Determining a Distance Using 3 Measurements See Figure H Press this button twice the display shows the lt symbol The distance to be measured flashes in the symbol F Aim at the lower point 1 and trigger the measurement After the first measurement the value is adopted Keep the instrument as horizontal as possible Press to measurement the distance result of the horizontal point 2 Ep Press to measurement the distance result of the upper point 3 The result of the function is displayed in the summary line Historical Storage the previous 20 records measurements or calculated results are shown in the reverse order Use h or buttons to navigate through these records You can clear all records by press Storage button and Clear button simultaneously in historical storage mode Figure 6 Technical Data Technical Specifications Range 0 05to m 0 16 ft to 230 ft Measuring accuracy up to 10m Typically 1 5 mm 2a standard deviation 0 06 in Measuring units min ft Laser Class Class Il Laser Type 635 nm lt 1TmiW Area Volume Calculations
6. lly to the default setting rear reference p Figure D Display Illumination Click illumination UNITS button of the display can be switched on or off user can trigger the function when he she is in darkness situation The value is clear visible on the LCD Distance Unit Setting For Instrument Click the button longer to change the next type of unit m ft in ft in then continue to click the button for the next unit selection Single Distance Measurement A Press to activate the laser Press again to trigger the distance measurement The measured value is displayed immediately Continuous Measurement Tracking amp Max and Min Measurement See Figure E The continuous measurement function tracking is used for the transferring of measurements e g from construction plans In continuous measurement mode the measuring tool can be moved to the target whereby the measured value is updated approx every 0 5 seconds in the third line The corresponding minimum and maximum values are displayed dynamically in the first and second line As an example the user can move from a wall to the required distance while the actual distance can be read continuously For continuous measurement push button until the indicator for continuous measurement appears in the display And press MEAS or Clear button again to stop the function The function is terminated automatically after continuous 100 times measurement Figure E
7. s lf the symbol still appears please contact your dealer for assistance amp Measuring Sonditions Measuring Range The range is limited to 70 m At night of dusk and if the target is in shadow the measuring range without target plate is increased Use a target plate to increase the measurement range during daylight or if the target has poor reflection properties Target Surfaces Measuring errors can occur when measuring toward colorless liquids e g water or dust free glass Styrofoam or similar semi permeable surfaces Aiming at high gloss surfaces may deflect the laser beam and lead to measurement errors Against non reflective and dark surfaces the measuring time may increase Care Do not immerse the instrument in water Wipe off dirt with a damp soft cloth Do not use aggressive cleaning agents or solutions Handle the instrument as you would a telescope or camera S Labelling LS FOP A PLEASE READ EEG BANAL FDA SAFE ee CE E
8. tected e Aiming directly into the sun e Inadequate safeguards at the surveying site e g when measuring on roads construction sites etc Laser Classification The CEM produced a visible laser beam which emerges from the front of the instrument Laser Class 2 products by aversion responses including the blink reflex Do not stare into the laser beam or direct it towards other people unnecessarily Eye protection is normally afforded A A WARNING Looking directly into the beam with optical aids e g binoculars telescopes can be hazardous Precautions Do not look directly into the beam with optical aids A CAUTION Looking into the laser beam may be hazardous to the eyes Precautions Do not look into the laser beam Make sure the laser is aimed above or below eye level 2 Start Up Inserting Replacing Batteries See Figure A 1 Remove battery compartment lid 2 Insert batteries observing correct polarity 3 Close the battery compartment again e Replace the batteries when the symbol 23 flashes permanently in the display e Use alkaline batteries only e Remove the batteries before any long period of non use to avoid the danger of corrosion Keypad See Figure B 1 ON MEAS button 8 Reference button 2 Area Volume button 9 Illuminating UNITS button 3 Indirect measurement button 10 Clear Off button 4 Single Continous Distance measurement button 5 Plus button 6 Minus button 7
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