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Laser Technology IMPULSE LR, User Manual

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Laser Technology IMPULSE LR User Manual Download Page 56

T

ARGETING

 

Page 

48

                                            

Electronic Copy of LTI’s Impulse User’s Manual 8

th

 Edition © October 1998

 

clear the range offset to avoid confusion. 

• 

Gates are applied to SD measurements only, 
and may not be exactly where expected in HD 
or VD. 

See the diagram in the beginning of 

Taking a Basic Measurement 

to clarify the 

relationship between these measurements.

Summary of Contents for IMPULSE LR

Page 1: ...IMPULSE IMPULSE LR...

Page 2: ...he product resulting from accident disaster misuse abuse or non LTI modification of the product To activate your warranty return the warranty card from the front of this manual to LTI within 30 days o...

Page 3: ...e LTI shall not be held responsible if any LTI authorized dealer has been advised of the possibility of such damages or for any claim by any other party Note The Warranty Validation Card at the front...

Page 4: ...Electronic Copy of LTI s Impulse User s Manual 8th Edition October 1998...

Page 5: ...er device however it is recommended that you avoid staring into the transmit aperture for prolonged periods while firing the laser Never attempt to view the sun through the scope Looking at sun throug...

Page 6: ...simply by sighting your target through the scope and briefly pressing one of three buttons conveniently located at your fingertips This manual covers the options characteristics and operation of these...

Page 7: ...LS 15 SETTING UP FOR LEFT HANDED OPERATION 18 SWITCHING THE HAND STRAP 18 RECONFIGURING THE BUTTON PANELS 19 TAKING A BASIC MEASUREMENT 20 UNGROUPING SENSORS IMPULSE 200 22 SETTING THE SCOPE DOT INTEN...

Page 8: ...5 Queries 55 Download Messages 56 CR400 FORMAT 57 NMEA Compliance 57 Queries 58 Download Messages 59 SPECIFIC MESSAGE FORMATS 60 Version ID 61 Basic Measurement Horizontal Vector 62 Range Difference 6...

Page 9: ...d that it all arrived undamaged Basic Impulse Package Impulse laser instrument Belt clip Hand strap Two AA batteries User s manual Padded carrying case Accessories In addition you may have ordered one...

Page 10: ...n inserting into and extracting from the battery compartment The diameter of the battery tube on your Impulse was chosen carefully to allow easy in out of normal AA batteries with no excess room for c...

Page 11: ...start at the instrument however power on and off by using the buttons depicted in the illustrations at the right Power on by pressing the rear most button the button closest to you on either button pa...

Page 12: ...pared to take a horizontal distance measurement The slope distance indicator SD will appear on the Impulse 100 The F means the measurement will be taken in feet An M in this location would mean the me...

Page 13: ...ched beep and displays something like this RIGHT HD F DNLD The large number in the center of the display is the distance to the target DNLD in the lower right quadrant means the number is available at...

Page 14: ...sensors are integrated with software controls and accessed through the two 3 button panels on either side of the unit and a liquid crystal display LCD screen on the rear panel Sensors The Impulse las...

Page 15: ...u chose The single power sighting scope features an in scope red aiming dot to help you aim accurately to the target You can vary the intensity of the dot to account for different lighting conditions...

Page 16: ...instrument by pressing the Fire or Fire2 button and keep the button pressed down This is also a good way for you to check if all the components on your display are working properly The display will l...

Page 17: ...of the target object VD Vertical Distance Impulse 200 only Measures the distance between a target object and the perpendicular to the path of the horizontal distance SD Slope Distance Measures the st...

Page 18: ...rgets that are at or beyond the window s minimum distance and at or within the window s maximum distance G Gate option is on S Short gate is set increasing the minimum measuring distance L Long gate i...

Page 19: ...icator Function Explanation LASER Laser The laser sensor is firing BATT Battery Flashing Time to replace the batteries DNLD Download Measurement is available for download Down Arrow Flashing Impulse 2...

Page 20: ...Selects Impulse operating characteristics RIGHT LEFT Right or Left Right or left button panel is primary BORE Bore Sight Aligns the red dot or crosshair in the sighting scope CAL Tilt Calibration Imp...

Page 21: ...ents is itself sometimes used as an indicator of sorts if dashed lines appear the instrument is ready to take a measurement if the middle of the screen is blank the option has suboptions that can be a...

Page 22: ...ode See Discarding Error Messages in Downloading Data Code Explanation doF Display overflow The measurement exceeds the display capacity or measurement angle at 90 degrees EoF Editor overflow E01 Fail...

Page 23: ...anels are identically laid out The button nearest the rear panel is the Fire button The middle button is the Forward button And the button nearest the front panel is Back In the Impulse lexicon button...

Page 24: ...whether the button is on the primary panel or secondary panel and how long you hold the button down A short press of a button simply means you press it and release it immediately A long press means yo...

Page 25: ...n edit mode advances to the next digit Forward Moves forward in the options in a menu When DNLD is showing sends a download message out the serial port In edit mode first press restores the edit value...

Page 26: ...tton panels Switching the Hand Strap To switch the hand strap remove the screws that attach the strap to the mounting plates Use the left thumb block and position the strap on the left side of the ins...

Page 27: ...to be the one on the same side as the hand strap Follow this procedure to switch the primary panel 1 Press the Fire button to power on the instrument 2 Repeatedly press Forward or Back until the indic...

Page 28: ...urements The five measurements are related the relationships among them are illustrated here Measured Calculated slope distance horizontal distance inclination vertical distance Percent slope is 100 t...

Page 29: ...ach of the basic measurements operates in essentially the same simple way power on aim and fire except that you sometimes have a couple of other considerations First the screen must be displaying the...

Page 30: ...or example when slope distance SD is measured only the range sensor is activated and when inclination INC is measured only the tilt sensor is activated Now a horizontal distance HD measurement is calc...

Page 31: ...ndicator 2 Press Fire to select the SYS option 3 Press Forward repeatedly until the UNITS indicator at the bottom center of the display screen begins flashing and SEL shows in the numeric display area...

Page 32: ...erflow error doF and inclinations that exceed 90 degrees will generate error E05 If you have turned on in the SYS UNITS option and an inclination measurement is displayed that measurement is a percent...

Page 33: ...convenient for your measurement conditions Here is the procedure 1 Press Forward Back as necessary to show the SYS option 2 Press Fire to select the SYS option 3 Press Forward repeatedly until the M a...

Page 34: ...ul audio updates that tell what the instrument is doing you may want to turn the beeper off and use the instrument silently This feature is available for instruments with red dot scopes only To turn t...

Page 35: ...ight is the sum of BD and DC The Impulse implements the process with the HT option The option works by requiring that the measurements be taken in a specific order The procedure is in the table on the...

Page 36: ...Press Back to reach the Height indicator RIGHT HT Press Fire to advance into the height subprocedure RIGHT _ _ _ _ _ _ F HT HD Button Action Result example Sight the target through the scope Press Fir...

Page 37: ...ndicator is blinking signifying that the instrument is prepared to take a horizontal distance measurement of another target At this point you have several options Pressing Forward downloads the height...

Page 38: ...to the target at the center of its girth This insures the most accurate horizontal distance reading thus leading to the most accurate height calculation Filter mode is helpful in this situation To acq...

Page 39: ...your eye without moving your head during a height measurement you will want to specify the back panel as your pivot point That means specifying a pivot offset of 0 08 meters 0 25 feet However if you h...

Page 40: ...e pivot offset is now activated for all height measurements and is denoted by the PIVOT indicator in the lower portion of the HT option display screen Additional Notes Some additional notes on using t...

Page 41: ...termined above and use the Impulse to measure the height As you are measuring the height write down these three values the base inclination angle in negative degrees called base the top inclination an...

Page 42: ...running total Difference Measurements Difference measurements calculate the differences between a succession of targets and a single set point You can use either horizontal distance measurements or sl...

Page 43: ...art SD flashing Then press Forward to move to the next display The next display is a series of dashes with two arrows flashing in the right corner The instrument is now ready to accept the set point 4...

Page 44: ...k twice to back out to the main display Exiting the difference measurement option will clear the difference measurement in memory Cumulative Measurements A cumulative measurement lets you move from on...

Page 45: ...between the two at any time Horizontal distance is already selected as shown by the flashing HD indicator To use HD measurements then simply press Forward to move to the next display To select SD mea...

Page 46: ...you will want to take a series of measurements and download only once when a series of related measurements are complete Additional Notes The cumulative measurement total is saved in memory even if th...

Page 47: ...We recommend a 3 inch red bicycle reflector such as a Cole model 03 3305 which is available in hardware stores Note This technique is not effective at long ranges due to the instrument s reduced sens...

Page 48: ...nge readings are being taken Double high pitched tone The instrument has completed the measurement and all sensors acquired readings Single high pitched tone The instrument has completed the measureme...

Page 49: ...self The effect of the displacement is most noticeable at short range generally less than 150 meters 500 feet At ranges of more than 300 meters 1000 feet the displacement has no practical effect You a...

Page 50: ...e up against one wall and measure the distance to the other wall Without a range offset the distance measured would be slightly shorter than the actual distance because the measuring point of the inst...

Page 51: ...whole feet or meters Refer to The Edit Mode for more information You will know that a range offset is On when you see the OFFSET indicator in the lower left portion of the display on SD HD and VD mea...

Page 52: ...e gate window too narrow the instrument automatically adjusts it by resetting either the short or long gate taking the most recent value entered as the standard to recalculate the other by So if the s...

Page 53: ...use the editing function Refer to The Edit Mode for more information 6 To set a long gate value press Forward The L indicator flashes and the long gate value displays Continue to the next step To back...

Page 54: ...complish that the Impulse offers a FILTER option to lock onto only highly reflective targets Here s how you turn FILTER on 1 Press Forward Back as necessary to show the SYS option 2 Press Fire to sele...

Page 55: ...eset to OFF but gate values are retained in memory Offset and filter settings are saved upon powering down When using gates and offsets together keep the following in mind Gates and offsets are additi...

Page 56: ...ition October 1998 clear the range offset to avoid confusion Gates are applied to SD measurements only and may not be exactly where expected in HD or VD See the diagram in the beginning of Taking a Ba...

Page 57: ...g them in with the laser an optional editor is available by pressing Fire2 when a distance measurement is requested by the Impulse Once in the editor follow this method The left most digit will be fla...

Page 58: ...value is correct press Fire A beep will sound and the value will be accepted in memory and at this point can no longer be restored by pressing Forward or Back To exit the editor and return to your sub...

Page 59: ...ion on application software Downloading Measurement data can be downloaded using one of three methods manual download automatic download or query The data you wish to download must appear in the displ...

Page 60: ...the automatic download mode and change the download format with the SYS DNLD option Here is the procedure 1 Use Forward and Back as needed to display the SYS indicator 2 Press Fire to select the SYS...

Page 61: ...the horizontal distance field and will download 0 00 in both the inclination and azimuth fields This is to accommodate download software that does not accept null values Impulse 200 While CR400 is sh...

Page 62: ...ctor or switch closure Remote triggering is accomplished by providing an open collector closure to ground or an active low TTL or RS232 level signal to the trigger pin on the serial connector This opt...

Page 63: ...at once Serial Interface Specifications The Impulse serial interface uses RS 232 12V signal levels and data format The format parameters are set to 4800 bps CR400 format 9600 bps IP200 and IP100 forma...

Page 64: ...wnloaded in IP200 IP100 format are in this general form datatype value dunits aunits csum CR where datatype identifies the data type Legal values ID Instrument version number BM Basic measurements HT...

Page 65: ...wed by a hexadecimal checksum The checksum is the result of a complemented no carry binary addition of all the characters between the dollar sign and the asterisk CR is a carriage return CR400 Format...

Page 66: ...wish to download must appear in the display window If it does not scroll to the appropriate option A CR400 format query message from the download device to the Impulse is in this general format PLTIT...

Page 67: ...specifies a measurement value and the units in which that value is expressed This pattern repeats as often as needed to specify the downloaded values except that the final units designator is not foll...

Page 68: ...to by the instrument Note Historically the HV data line has been the most commonly used of all Criterion 400 data line types and hence is the only data line type supplied in the Impulse Specific Mess...

Page 69: ...odel IP200 format Message CR400 format Message 200 Query ID Response download ID IP200 1 40 2C Query PLTIT RQ ID Response download PLTIT ID IP200 1 40 44 Impulse Model IP100 format Message CR400 forma...

Page 70: ...200 Query BM Response download BM 27 5 34 79 22 58 15 7 F D 17 Note empty field is azimuth value Bad reading or null data BM 34 79 F D AD BM F D B2 Query PLTIT RQ HV Response download PLTIT HV 22 58 F...

Page 71: ...100 Query BM Response download BM 27 5 F D E6 Bad reading or null data BM F D B2 Query PLTIT RQ HV Response download PLTIT HV 27 5 F 3F Bad reading or null data PLTIT HV 67 Response download with dumm...

Page 72: ...l data RD 41 00 F AC RD E5 Query PLTIT RQ RD Response Download PLTIT RD 41 00 F 1 35 F 70 Data unavailable PLTIT RD 6F Impulse Model IP100 format Message CR400 format Message 100 Query RD Response dow...

Page 73: ...208 34 244 00 F 49 Data cleared to zero RC 0 00 0 00 F 24 Query PLTIT RQ RC Response download PLTIT RC 208 34 F 244 00 F 67 Data cleared to zero PLTIT RC 0 00 0 00 F 02 Impulse Model IP100 format Mes...

Page 74: ...e User s Manual 8th Edition October 1998 Height Impulse Model IP200 format Message CR400 format Message 200 Query HT Response download HT 37 02 F CB Data unavailable HT 0B Query PLTIT RQ HT Response d...

Page 75: ...The accessories are yoke and mounting bracket compass and compass mount Yoke The yoke features an open design to allow you to mount the Impulse to the pod without interfering with the operation of th...

Page 76: ...on the side opposite the hand strap Simply screw it into place If you are switching the hand strap from one side to another you will also need to reconfigure the yoke mounting bracket for use on the...

Page 77: ...t to a tripod or monopod first attach the mounting bracket to the side of the instrument then attach the yoke to the pod Align the thumbscrew with the middle hole in the attachment at the top of the b...

Page 78: ...top of the mounted instrument On top of the mount is a housing that fits over the Suunto compass and holds it in place Compass mount Compass housing Compass The compass features two hairlines one of...

Page 79: ...declination in your area is 10 E set the movable hairline so it is 5 degrees to the left of the fixed hairline If the declination is 10 W set the movable hairline 5 degrees to the right of the fixed...

Page 80: ...rument and should be handled with care It will withstand a reasonable drop shock If you drop the instrument however check the scope and tilt alignment Impulse 200 only before using the instrument for...

Page 81: ...loth or lens tissue Use a lens brush to remove surface dust and loose particles Remove paint splatters by letting them dry and carefully picking them off with your fingernails The windage and elevatio...

Page 82: ...BATT indicator blinks If you continue operations and the batteries run down further a Lob message displays on the screen If you fail to change the batteries at that point the keys will lock out Realig...

Page 83: ...arget when viewed from the instrument s position should be silhouetted against the sky with no other targets in the immediate vicinity That s so you can be certain of the general area the laser is hit...

Page 84: ...djustment screw equals one minute of angle MOA Adjust carefully Make sure you re moving the dot or crosshair in the right direction before you try adjusting in large increments Check the alignment one...

Page 85: ...cope 2 Make sure the instrument reads degrees and percent slope is turned off 3 Position the scope so its center is aligned with a previously determined level target Note The scope must be properly al...

Page 86: ...the instrument with the edge of the desktop or tabletop 9 Press Fire The first press may turn on the scope dot if the instrument does not begin a series of regularly spaced tones press Fire again You...

Page 87: ...degree of accuracy by setting up two targets 15 to 30 meters 50 to 100 feet away The center of each target must be level with the center of the scope lens and they must be facing each other This proc...

Page 88: ...1880 feet to a cooperative target Target Ranges Impulse 100 200 50 meters to overhead cable stake 250 meters to rock face building Impulse 100LR 200LR 100 meters to overhead cable stake 500 meters to...

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