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Section #6 – Serial Data Interface

                                                         49 

Electronic Copy of LTI's UltraLyte LR B User's Manual - 2

nd

 Edition © 2002 

Survey Data Message Format 

Range data downloaded in Criterion 400 Mode has the following general 
format: 

$PLTIT,HV,hd,hu, , , inc,iu,sd,su*cs<CR><LF> 

 

$PLTIT 

The Criterion message identifier. 

HV 

The Criterion Horizontal Vector message type.  

Hd 

The horizontal distance. In an UltraLyte LR B this 
field contains the slope distance. 

Hu 

The units in which hd is expressed. Legal values are 
F (feet) or M (meters). Followed by three commas, 
indicating two null fields for Criterion values not 
measured by the UltraLyte LR B. 

Inc 

Inclination measurement. In an UltraLyte LR B this 
field always contains 0.00. 

Iu 

Inclination units. Legal values are D (degrees) or  
G (gradients). In an UltraLyte LR B this field contains 
the factory default angle units even though the inc 
value is always zero. 

Sd 

Slope distance. 

Su 

Slope distance units. Legal values are F (feet) or  
M (meters). 

*cs 

An asterisk followed by a hexadecimal checksum. 
The checksum is calculated by XORing all the 
characters between the dollar sign and the asterisk. 

<CR><LF> 

A carriage return/line feed combination, which 
terminates each Criterion-format message. 

 
If a measurement error occurs, the message downloads null values for 
the measurements that failed. 

Example Survey Messages 

The section uses Slope Distance = 27.5 feet (8.38 meters). 

English units: 

$PLTIT,HV,27.5,F, , ,0.00,D,27.5,F*3D 

Metric units: 

$PLTIT,HV,8.38,M, , ,0.00,G,8.38,M*3E 

Содержание UltraLyte LR B

Страница 1: ...UltraLyte LR B User s Manual...

Страница 2: ...written consent of Laser Technology Inc Copyright Laser Technology Inc 2002 All rights reserved Printed in the United States of America First Edition April 2002 Second Edition June 2002 Trademarks Ult...

Страница 3: ...d Use 10 Refolding the Stock 11 Attaching the Yoke 12 Inserting the Batteries 13 Powering ON the UltraLyte LR B 14 Powering OFF the UltraLyte LR B 14 Extending the Display Segment Test 14 Understandin...

Страница 4: ...rature 43 Moisture and Dust Protection 43 Shock Protection 43 Cleaning and Storage 43 Caring for the Scope 44 Checking the Screen Display 44 Resetting the Factory Default Settings 44 Section 6 Serial...

Страница 5: ...taken in its operation It is recommended that you avoid staring into the transmit aperture while firing the laser The use of optical instruments with this product may increase eye hazard Never attemp...

Страница 6: ...Safety Precautions 4 Electronic Copy of LTI s UltraLyte LR B User s Manual 2nd Edition 2002...

Страница 7: ...LCD screen for instant access to measurements and options Serial output port for easy connection to a data collector or remote computer Fully adjustable fold away shoulder stock Sighting scope with in...

Страница 8: ...LR B When you receive your UltraLyte LR B check to make sure that you have received everything that you ordered and that it all arrived undamaged UltraLyte LR B Package UltraLyte LR B instrument Two...

Страница 9: ...istance through its laser range sensor by measuring the time of flight of short pulses of infrared light The UltraLyte LR B has a broad spectrum of sensitivity and can work with both reflective and no...

Страница 10: ...nt ring In scope red aiming dot to help you aim accurately to the target In scope measurement display As Figure 3 shows the appearance of the aiming dot varies depending if the Speed Mode or Survey Mo...

Страница 11: ...s alternate speed measurement mode Right Panel SURVEY MODE Activates the instrument s survey measurement mode TEST OPTIONS Activates the instrument s test mode BRIGHTNESS CONTROL Varies the intensity...

Страница 12: ...e stock 2 Rotate the stock 180 degrees 3 Turn the tension knob clockwise to retighten the stock Unfolding the Stock for Right Handed Use Refer to the instructions and Figure 5 below to unfold the stoc...

Страница 13: ...ion 3 Retighten the tension knob Angle 1 Loosen the tension knob slightly 2 Move the stock up or down Usually it is best if the stock is at a slight downward angle Refolding the Stock Refer to the ins...

Страница 14: ...a monopod or tripod Refer to the instructions and Figure 7 below to attach the yoke to the UltraLyte LR B The yoke can be mounted on either side of the instrument When the yoke is mounted on the left...

Страница 15: ...ten the cap Battery Voltage Level The UltraLyte LR B continuously monitors its power source LTI has defined an acceptable battery voltage range to ensure that the instrument has sufficient battery vol...

Страница 16: ...period of 15 minutes Instrument activity includes any button presses or serial communication Extending the Display Segment Test Extending the Display Segment Test lets you confirm that all display in...

Страница 17: ...MENU Options Menu This feature is not available on the UltraLyte LR B LASER Laser Fire The instrument s laser is firing Flashing Battery voltage is low Steady Battery voltage is too low Power OFF the...

Страница 18: ...tance Between Cars This feature is not available on the UltraLyte LR B DELTA Distance Difference This feature is not available on the UltraLyte LR B MUTE Mute silent Mode This feature is not available...

Страница 19: ...indicates that the task was completed 20 CLEAr When the Speed Mode is active indicates that the Weather Filter is OFF 23 dEF The instrument is restoring the factory defaults 20 Exx Error Code An error...

Страница 20: ...s br 05 as shown in the figure 2 Press the BRIGHTNESS CONTROL button until the setting is correct It s easy to get the correct setting if you look through the scope while making the adjustment 3 Press...

Страница 21: ...that the UltraLyte LR B is powered OFF 2 Press and hold the TRIGGER 3 Press the SURVEY MODE button The display should look similar to Figure 11 4 Release the SURVEY MODE button In this example 100 is...

Страница 22: ...3 below to restore the factory default for the in scope aiming dot s intensity 1 Verify that the UltraLyte LR B is powered OFF 2 Press and hold the TRIGGER 3 Press and hold the BACKLIGHT button The di...

Страница 23: ...le Low Pitched Beep The instrument was not able to take the intended measurement due to an error An error code is displayed to indicate the nature of the error Low Pitched Growl The instrument is atte...

Страница 24: ...d by poor aiming or by panning off the target E03 Measurement error low level of interference from a light source such as a headlight or a laser jamming device E07 Jam detect high level of interferenc...

Страница 25: ...ll be measured in feet M indicates meters Taking a Sample Measurement Refer to the instructions below to take a sample speed measurement 1 Ensure that the UltraLyte LR B is powered ON and that the Spe...

Страница 26: ...ng a spot on the side of the road for measuring moving vehicles you will need to consider Do you have a clear line of sight What is the angle between the instrument s position and the target vehicle s...

Страница 27: ...trument and its actual position The larger the angle the lower the measured speed The effect always works to the motorist s advantage Loosely speaking the cosine effect is not significant as long as t...

Страница 28: ...speed measured given the distance from the roadway and the distance from the target vehicle To find a target s measured speed multiply the true speed by the number in the chart Table 7 Percentage of T...

Страница 29: ...instrument is attempting to lock onto the target A low pitched beep means that a measurement error occurred An error code will be displayed A high pitched beep means that a speed was captured As long...

Страница 30: ...measured Jam Indicator The JAM display indicator page 15 on the back panel screen may blink during a measurement and may be accompanied by the jam tone page 21 This indicates that the instrument is be...

Страница 31: ...her Filter is active The SPEED indicator is displayed The GS indicator appears on the screen and word FiLtEr appears at the bottom of the display screen until it is overwritten by the distance to the...

Страница 32: ...the instrument will try up to 10 times or more Information is accumulated until it gets a good measurement or generates an error code Consequently it is very important that the aiming point on the tar...

Страница 33: ...e LR B takes only slope distance measurements and has no way to measure angles When the Survey Mode is active The triangle icon in the lower left corner of the display screen indicates that the instru...

Страница 34: ...press the TRIGGER A low pitched growl begins indicating the instrument is trying to acquire a lock on the target 4 Continue to press the TRIGGER and keep the instrument sighted on the target until yo...

Страница 35: ...actory defined options that are set when the instrument is shipped Display Integrity Test The Display Integrity Test allows you to verify that all display segments are operating LTI suggests that you...

Страница 36: ...o indicate when the scope is on target Refer to the instructions below to do the Scope Alignment Test 1 Select a target Choose a prominent target with well defined horizontal and vertical edges The ta...

Страница 37: ...over for LTI contact information Scope Alignment Procedure The point of this procedure is to align the laser s point of impact with the in scope red aiming dot using sound to indicate when the scope i...

Страница 38: ...that you not lose the washers Failing to replace them renders the scope at risk to water damage 3 Ensure that the UltraLyte LR B is powered ON 4 Press the TEST OPTIONS button two times to activate th...

Страница 39: ...that interval The Reference Frequency Test should be done by a qualified technician Specific details about the test are located in the UltraLyte Periodic Certification Manual If you need assistance c...

Страница 40: ...stance is measured along a straight level path from the shooting mark to the center of the aiming point The manner in which you stand and hold the instrument both affect the test measurements For exac...

Страница 41: ...erifies the timing accuracy of the instrument and is identical in nature to an accurate velocity reading of a vehicle moving at any speed MPH results The displayed distance should read from 174 5 to 1...

Страница 42: ...r Hour and meters LTI recommends that the first target should be 45 meters from the shooting mark and the second should be 55 meters from the mark See Figure 28 B If there is not enough space availabl...

Страница 43: ...stance to the target 1 ft The display should read 174 175 or 176 ft TEST m DELTA The screen displays the distance to the target 15 cm The display should read from 54 8 to 55 2 m 6 Press the TEST OPTIO...

Страница 44: ...lts If the difference is 25 feet the displayed simulated speed should be 49 50 or 51 mph and the distance should be 24 5 25 0 or 25 5 feet KmH results If the difference is 10 meters the distance shoul...

Страница 45: ...care It will withstand a reasonable drop shock If you drop the instrument however check the scope alignment before using the instrument for measurement see page 34 Cleaning and Storage Clean the inst...

Страница 46: ...ning solution and wipe it with a clean cloth or lens tissue The adjustment screws are permanently lubricated do not attempt to lubricate them Keep the cover screws and sealing washers in place except...

Страница 47: ...speed detection instrument The 20 20 format is applied only when the Speed Mode is active Criterion 400 format Identical to that of the horizontal vector message from the Laser Technology Criterion fa...

Страница 48: ...mat requests for the firmware version ID The format is as follows ID CR LF ID The request identifier CR A carriage return LF An optional line feed character The instrument s response is as follows ulm...

Страница 49: ...s departing when the measurement was taken the number will be preceded by a minus sign Range The range measurement Legal values are 0000 0 to 9999 9 unsigned CR LF A carriage return line feed There ar...

Страница 50: ...ates the request type CR LF A carriage return and optional linefeed The instrument s response is as follows PLTIT ID model versionid csum CR LF PLTIT ID Identifies the message model Indicates the Ultr...

Страница 51: ...urement In an UltraLyte LR B this field always contains 0 00 Iu Inclination units Legal values are D degrees or G gradients In an UltraLyte LR B this field contains the factory default angle units eve...

Страница 52: ...Section 6 Serial Data Interface 50 Electronic Copy of LTI s UltraLyte LR B User s Manual 2nd Edition 2002...

Страница 53: ...76 m 0 m Maximum Range 3280 ft 1000 m Speed Range 200 mph 320 kmh Range Accuracy Speed Mode Survey Mode To a White target at 150 feet 45 meters 6 in 2 in 1 15 cm 5 cm Range Resolution Survey Mode 0 1...

Страница 54: ...Section 7 Specifications 52 Electronic Copy of LTI s UltraLyte LR B User s Manual 2nd Edition 2002...

Страница 55: ...e BRIGHTNESS CONTROL button to increase the intensity of the red dot Adjust the polarizing filter E01 error code No range or speed readings Can you measure to a wall that is about 50 feet or 20 meters...

Страница 56: ...acquiring a target through glass will reduce the unit s maximum range Make sure the lens is clean Check the lens for scratches Difficult to acquire target while aiming through windshield Is the Weathe...

Страница 57: ...intensity 8 18 not visible 53 resetting default intensity 20 Speed Mode 23 Survey Mode 31 angle of shoulder stock 11 attaching mounting bracket 12 yoke 12 yoke adapter 12 B BACKLIGHT button 9 20 BATT...

Страница 58: ...17 21 eye safety 3 51 F F OUt 17 factory defaults restoring 20 44 features of the UltraLyte LR B 5 FiLtEr 17 29 30 filter adjustment ring 8 firmware revision number 19 Fixed Distance Test 38 results 3...

Страница 59: ...measurements or readings 53 no power 53 noise See sounds O operating temperature 43 P polarizing light filter 8 positive value speed display 28 power OFF 14 ON 14 POWER OFF button 9 14 precautions 3 p...

Страница 60: ...lay positive negative value 28 SPEED indicator 16 23 29 Speed Mode 23 aiming dot 23 in scope display 8 Weather Filter 29 SPEED MODE button 9 storing UltraLyte LR B 43 SURVEY indicator 16 Survey Mode 3...

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