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6.3 Error when no atmospheric correction is made

When measurement is carried out with no Atmospheric Correction (with the settings fixed at a
temperature of 15°C and an atmospheric pressure of 1013 hPa or 760 mmHg), the Error per 100
meters in temperature and pressure will be shown in the tables below.

• When the actual pressure is 1013 hPa (760 mmHg) and the temperature is 25°C, conducting

the measurement with the temperature left at 15°C will result in the measurement being
short by 0.9 mm per 100 meters.

[Error table: When hPa (15°C, 1013hPa as standard)]

[Error table: With mmHg (15°C, 760mmHg as standard)]

38

Содержание W-821NX

Страница 1: ... 4 3 4 Ueno Iwatsuki Ku Saitama Shi Saitama 339 0073 Japan Tel 81 48 793 0118 Fax 81 48 793 0128 E mail International tiasahi com www pentaxsurveying com en TOTAL STATION W 800 BASIC INSTRUCTION MANUAL W 821NX W 822NX W 823NX W 825NX W 835NX SERIES ...

Страница 2: ... respective manuals Copyright 2012 TI Asahi Co Ltd TI Asahi Co Ltd makes no warranty expressed or implied including but not limited to any im plied warranties or merchantability or fitness for a particular purpose regarding these materials and makes such materials available Before using this product be sure that you have thoroughly read and understoodthisinstructionmanualtoensureproperoperation Af...

Страница 3: ... acquired data etc Before using this product be sure that you have thoroughly read and understood this instruc tion manual to ensure proper operation After reading this manual be sure to keep it in a conve nient place for easy reference This instrument complies with the protection requirement for residential and commercial areas If this instrument is used close to industrial areas or transmitters ...

Страница 4: ...t as there is a risk of fire and burn injury due to short circuit To prevent making short circuit when removing the battery and charger from the case and storing them apply electrically resistant tape to the poles of the battery Storing the bat tery and charger as it may result in fire or burn injury due to short circuit Do not throw the battery into fire or expose it to heat as there is a risk of...

Страница 5: ...ls for details for recycling Usage precautions Surveying instruments are high precision instruments In order to assure that the ElectronicTotal Station W 800 series product which you have purchased will provide long lasting maximum per formance the precautions in this manual must be followed Be sure to follow these instructions and use this product properly at all times Solar observation WARNING N...

Страница 6: ...or sheet or prism The measurement range at TRACK mode is over 5m It may take longer time than usual when measuring the distance exceeding 300m or the distance to an object that is hard to measure Reflector sheet measurement precautions There is a possibility that correct distance measurement may not be performed by disper sion or reduction of laser beam when the laser beam comes into the target fr...

Страница 7: ... electrically resistant tape to the poles of the battery Storing the battery and charger as is may result in fire or burn injury due to short circuit Avoid storing the instrument in places subject to extreme high low or radically fluctuating temperature Ambient temperature range during use 20 C to 50 C Distance measurements may take longer when atmospheric conditions are poor such as when heat shi...

Страница 8: ...olutely no responsibility for damages due to survey results obtained from surveys conducted without an initial instrument check Never disassemble the instrument battery or charger even if you do detect an abnormality as there is a risk of fire or electric shock due to short circuit If you think the product requires repair contact the retail outlet where you purchased it or an authorized repair sit...

Страница 9: ...18 2 1 DISPLAY AND KEYBOARD 18 2 2 OPERATION KEYS 18 2 3 ALPHANUMERIC INPUT 19 2 4 LD POINT LASER POINTER 19 3 PREPARATION FOR SURVEYING 20 3 1 CENTERING AND LEVELING OF THE INSTRUMEN 20 3 2 LASER PLUMMET 21 3 3 LEVELING WITH CIRCULAR VIAL 22 3 4 EYEPIECE ADJUSTMENT 23 3 5 TARGET SIGHTING 24 3 6 ATTACHMENT AND DETACHMENT OF TRIBRACH 28 4 CHECKS AND ADJUSTMENTS 29 4 1 ELECTRONIC VIAL 29 4 2 CIRCULA...

Страница 10: ...ATMOSPHERIC CORRECTION 37 6 2 hpa AND mmHg CONVERSION TABLE 37 6 3 ERROR WHEN NO ATMOSPHERIC CORRECTION IS MADE 38 6 4 ATMOSPHERIC REFRACTION AND EARTH CURVATURE CORRECTION 39 6 5 DISTANCE RANGE 40 7 NOTICE TO THE USER OF THIS PRODUCT 41 8 ...

Страница 11: ...key Eyepiece ring Eyepiece Laser indicator Circulator vial CF card slot Display panel Key board RS 232C connector Leveling screw Focus ring AF buton Instrument height mark Battery latch Battery pack Telescope tangent screw Telescope clamp screw Clamp screw Tangent screw SD card slot USB connector Top handle Detaching knob Base plate Objective lens ...

Страница 12: ...he case Å Make sure the telescope is fairly level and lightly tighten the telescope clamp screw Ç Line up the housing marks round yellow marks on the instrument and tighten the upper and lower clamp screws É Withthehousingmarksfacingupward settheinstrumentgentlyinthecasewithoutforcingit Ñ Close the lid to the case and secure the latches 1 3 Standard equipment Instrument Carrying case BP02 battery ...

Страница 13: ...rn the power off when removing the battery pack as removing the battery pack while the power is still on may result in damage to the instrument Attaching the battery Å Align the guide grooves on the battery pack with the guide grooves on the instrument and push the top of the battery pack into place Ç Turn the Battery latch clockwise to fix Turn and fix the Battery latch to lock the battery pack w...

Страница 14: ... in the outlet of AC power supply Installation of battery Å Draw the battery to the lock lever side and put it on the battery pocket The battery is firmly installed on the battery pocket Ç Press down the battery and then slide it to the opposite direction of the lock lever É The lock lever goes up and the battery is fixed Ñ Under such a condition if Connection of the code is done the charge with t...

Страница 15: ...mory when the NiMH battery leaves capacity and repeats the charge The voltage recovers after refreshing and the use time returns normally in such a battery Please refresh one degree every five times of the charge Refreshing Set the battery in the charger as well as the case of the charge Push the electrical discharge button The electrical discharge lamp lights and the electrical discharge begins T...

Страница 16: ...uld face the instrument and the cut off corner should be up 3 Insert the SD card to the end Be sure not to press the card too hard After the SD card is inserted close the Slot cover completely Removing SD card 1 Open the Slot cover 2 Lightly press the SD card so the card pops out 3 After the SD card is removed close the Slot cover completely Do not open close the Slot cover or insert remove the SD...

Страница 17: ... by pressing CF OPEN button then open the cover 2 Carefully insert the CF card into the Slot until the Inject button pops out The side with terminal must face the instrument 3 After the CF card is inserted close the Slot cover completely Insert the CF card with its tub facing the instrument Do not open close the Slot cover or insert remove the CF card outdoors 15 ...

Страница 18: ...ble Be sure to turn the instrument s power off before connecting or disconnecting the USB Cable 1 Open the USB connector cover 2 Insert the USB connector into the USB port in right direction 3 After the USB is disconnected close the USB connector cover completely Do not open close the USB connector cover or connect disconnect the USB cable outdoors 16 Be sure the direction of USB mini B connector ...

Страница 19: ... stored files in the DiskOnChip or delete the file using the PC 1 9 Detaching attaching Stylus pen Stylus pen is attached behind the LCD unit Touch panel input Selection of functions can be done by touching the display with Stylus pen Do not touch the display with any things such as fingertips or pen point Otherwise it may cause malfunction or damage to the display 17 ...

Страница 20: ...elected highlighted choice or value displayed on the screen LASER UsedtooperatethefunctionssuchasLaserplummet electronicvialandLaserpointer Alphanumeric Used to input alphabets and numerical value Used to display the data 1 page back or 1 page ahead Used to move the cursor up or down Used to move the cursor left or right 18 Function key Cursor control key Illumination key Power key Alphanumeric an...

Страница 21: ...ting terminating laser beam emission refer to the instructions in the manuals of respective software The Laser indicator is turned on and the mark on the left of the screen blinks while the Laser pointer function is operating The beam of the sun is strong and visual confirmation is difficult in daytime when outdoors The laser beam is designed not to be able to observe through the telescope Please ...

Страница 22: ...lumb bob on the hook of the tripod and coarse center over the station on the ground At this time set the tripod and fix the metal shoes firmly into the ground so that the tripod head is as level as possible and the plumb bob coincides with the station on the ground É If the tripod head is mis leveled by the action of fixing the metal shoes into the ground correct the level by extending or retracti...

Страница 23: ...des with the ground mark Rotate the instrument by 90 and confirm the vial of the the electronic vial is at the center at any position Correct the bubble with the leveling screw when the bubble comes off from the center The laser plummet spot can become difficult to see in bright sunlight which makes it difficult to perform the occasional check In this case use your foot or the carrying case to mak...

Страница 24: ...r by operating the Leveling screw of one remainder Figure B Ö The procedures are different according to the state of the Automatic inclination correction as following Ü Confirm whether the plummet is on the ground mark When you confirm it is not on the mark loosen the center screw and move the instru ment over the ground mark correctly and fix the instrument by a center screw Repeat from Å to Ü Wh...

Страница 25: ...ens cap Ç Point the telescope at a bright object and rotate the eyepiece ring full counter clockwise É Look through the eyepiece and rotate the eyepiece ring clockwise until the reticle appears as its maximum sharpness When looking into the eyepiece avoid an intense look to prevent parallax and eye fatigue 23 ...

Страница 26: ...f focusing failure owing to brightness contrast the shape and size of the target In such a case press the AF button and focus on the target by operating the Power focus key or the Focus ring Target examples which are hard to focus No contrast like a white wall Bright back light Obstacle in front of a target A wall composed of single horizontal lines ...

Страница 27: ... telescope clamp and horizontal clamp screws Ç Point the telescope at the target using a collimator É Tighten the above two screws Ñ Adjust the eyepiece Ö Look through the telescope and press the AF button Move your eye vertically and horizontally to see if the target image moves in relation to reticle Ü Align the reticle accurately on the target using telescope and horizontal tangent screws Colli...

Страница 28: ...le accurately on the target using telescope and horizontal tangent screws á Point the telescope to the next target as well Collimator Target Collimator AF button Press AF buttons for two seconds until it beeps andrelease the key Target sighting Keep the target close to the reticle center when following it by the Continuous mode Continuous mode automatically ceases after approx one minute Pressing ...

Страница 29: ...tal tangent screws Collimator Target Collimator Power focus key Target sighting Tilting the Power focus key clockwise makes it possible to focus on closer objects and counterclockwise will focus on farther objects TiltingangleofthePowerfocuskeymakesitpossibletoperformfollowingthreefocusingspeeds Low speed When tilted to middle position by approx 5 degrees Middle speed When tilted fully by approx 1...

Страница 30: ...ssible to focus on closer objects and counter clock wise will focus on further objects 3 6 Attachment and detachment of tribrach The tribrach of W 821NX W 822NX W 823NX and W 825NX are detachable from the instrument if required when replacing the instrument with a target or unit prism for example Detachment First loosen the recessed screw with a screwdriver then rotate the locking knob until the a...

Страница 31: ...e direction mutually and have the bubble of the side of the electronic vial to the center É Make the bubble of the length of the electronic vial to the center by operating the leveling screw of one remainder Ñ Rotate the instrument by 180 and confirm the position of the bubble of the electronic vial At this time it is not necessary to adjust it if the bubble of the electronic vial is in the vicini...

Страница 32: ... When the bubble of the Circular vial comes off from the center according to check procedure Ç it is necessary to adjust Turn the bubble adjustment screw with a hex wrench L type wrench and put the bubble in the center of the circle Only the detaching type model Turn the bubble adjustment screws with the reticle adjustment pin and put the bubble in the center of the circle Tighten the screws equal...

Страница 33: ...move the eyepiece cover Ç Using the adjusting pin loosen the four reticle adjustment screws slightly loosening each screw by the same amount and then rotate the reticle line around the sight axis and align the vertical line of the sight axis with Point A É Tighten the reticle adjustment screws again by the same amount and repeat the check to make sure the adjustment is correct Since the W 821NX W ...

Страница 34: ...of Point B Ç Using the adjustment pin rotate the reticle adjustment screws horizontally opposite each other see preceding page and move the reticle to sight Point D É Repeat the check and make sure the adjustment is correct Since the W 822NX and W 823NX have triple axis compensation it is necessary to make other settings besides the adjustments mentioned above For details contact the dealers from ...

Страница 35: ... look the brightest shifts by 0 5 mm or more at the instrument height 1 5m it is necessary to adjust it A repair engineer does this adjustment Please contact the PENTAX dealer 4 7 Offset constant The offset constant rarely changes It is recommended however that check be done once or twice a year The check of the offset constant can be done on a certified base line It can also be obtained in a simp...

Страница 36: ... to be aligned to the sighting axis of the telescope but it can be changed a little in case of rapid temperature change shock or aging Check your instrument by following procedures Checks Å Install the instrument on the tripod and level it at the distance of approx 50 m from the wall Ç Displace the target plate attached to the end of this manual Place the target plate adjusting its center to the c...

Страница 37: ...heet 1 2sec Track 10mm Prism Ref sheet 0 4sec Ref less 0 4sec Initial meas Normal 1mm Prism Ref sheet 2 5sec Ref less 2 4sec Quick 1mm Prism Ref sheet 1 7sec Track 10mm Prism Ref sheet 2 5sec Ref less 2 5sec Angle measurement Measuring method Absolute Rotary encoder Detection method Vertical Horizontal angle 2 sides Minimum count 1 5 selectable Accuracy ISO 17123 3 1 2 3 5 Compensator 3 axis 2 axi...

Страница 38: ...side of the Kodak Gray Card Reflector sheet PENTAX genuine Reflector sheet The measurement range may vary by conditions of the environment Normal conditions 20km visibility with slight shimmer Good conditions 40km visibility overcast no heat no shimmer and moderate wind When automatic atmospheric correction is on the EDM error is 10ppm in prism and reflector sheet mode EDM measuring time is determ...

Страница 39: ...tion needs to be used The instrument is designed to correct for weather conditions automatically if the temperature and pressure are input Correction is then carried out based on the following formula K Atmospheric Correction Constant P Atmospheric pressure hPa t Temperature C Distance after Atmospheric Correction D Ds 1 K Ds Measured distance when no Atmospheric Correction is used 6 2 hPa and mmH...

Страница 40: ...Pa or 760 mmHg the Error per 100 meters in temperature and pressure will be shown in the tables below When the actual pressure is 1013 hPa 760 mmHg and the temperature is 25 C conducting the measurement with the temperature left at 15 C will result in the measurement being short by 0 9 mm per 100 meters Error table When hPa 15 C 1013hPa as standard Error table With mmHg 15 C 760mmHg as standard 38...

Страница 41: ...t error when the slope distance and vertical angle are caused to determine the horizontal distance and the height differential with this instrument the following formula is used to correct these factors Calculation formula when atmospheric refraction and earth curvature correction parameter is set to ON Corrected horizontal distance H Corrected vertical distance V Calculation formula when atmosphe...

Страница 42: ...Normal With this instrument the conditions noted below are used to differentiate between the two situations Good weather conditions for surveying are different from Normal weather conditions and in surveying situations cloudy skies are considered more favorable than sunny skies Weather conditions for measurement ranges are based on the following standard values Normal Visibility of approximately 2...

Страница 43: ...ion label is located near the Plate level This laser product is complied with the provisions of 21 CFR 1040 10 and 1040 11 For a Class IIIa 3R laser product B Caution label is located near the exit aperture AVOID EXPOSURE Laser radiation is emitted from this aperture C Warning logotype is located on the surface of the telescope DANGER LASER RADIATION AVOID DIRECT EYE EXPOSURE D Warning label is Lo...

Страница 44: ... TARGET PLATE 42 ...

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Страница 48: ... W800 Basic01A Japan Surveying Instruments Manufacturers Association Member symbol of the Japan Surveying Instruments Manufacturers Association representing the high quality surveying products Copyright 2013 TI Asahi Co Ltd All rights reserved The duplication reuse or sale of any information provided on this manual including but not limited to images is strictly prohibited without expressed permis...

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