TOTAL STATION

BASIC INSTRUCTION
MANUAL W-822NX W-823NX W-825NX W-835NX

SERIES

TI Asahi Co., Ltd.
International Sales Department 3-37-14, Hazawa, Nerima-ku Tokyo, Japan 176-0003 Tel.:+81-3-5912-7072 Fax.+81-3-5912-7074 E-mail: International@tiasahi.com www.pentaxsurveying.com/en/
Before using this product, be sure that you have thoroughly read and understood this instruction manual to ensure proper operation.After reading this manual, be sure to keep in a convenient place for easy reference.
This Basic Instruction Manual contains the basic operation procedures and precautions on W-800 series hardware. W-800 series is an open platform product and you can enjoy variety of application software on it. Regarding the operations of application software, please refer to their respective manuals.
Copyright 2007 PENTAX Industrial Instruments Co., Ltd. PENTAX Industrial Instruments Co., Ltd. makes no warranty, expressed or implied, including but not limited to any implied warranties or merchantability or fitness for a particular purpose, regarding these materials and makes such materials available.
PRECAUTIONS REGARDING SAFETY
Safety Precautions (Must be followed)
The following items are intended to prevent possible injury to the user or other people and/or damage to the instrument before it occurs. These safety precautions are important to the safe operation of this product and should be observed at all times.

Distinctive displays

The following displays are used to distinguish precautions by the degree of injury or damage that may result if the precaution is ignored.

WARNING

Items indicated by this display are precautions which, if ignored, would result in serious injury.

CAUTION

Items indicated by this display are precautions which, if ignored, may result in injury or material. Here injury refers to injuries such as cuts, burns or electric shock the treatment of which will not likely require hospitalization or long-term attention. Material damage refers to damage to facilities, buildings, acquired data, etc. Before using this product, be sure that you have thoroughly read and understood this instruction manual to ensure proper operation. After reading this manual, be sure to keep it in a convenient 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, the equipment can be influenced by electromagnetic fields.
Do not stare into the laser beam directly as this may result in damage to your eyes. W-800 is a Class IIIa (3R) Laser product. Do not look into the laser radiation aperture directly as this may result in damage to your eyes. Never use the telescope to view intense light such as direct sunlight or sunlight reflected through a prism as this may result in loss of sight. Do not disassemble, modify or repair this product as there a risk of laser radiation. Do not aim the laser beam at a person as it is harmful to the eyes and body. Receive the examination treatment by the doctor when the eyesight or body trouble is doubted by any chance.
Electro-Magnetic Compatibility (EMC): This instrument complies with the protection requirement for residential and commercial areas. If this instrument is used close to industrial areas or transmitters, the equipment can be influenced by electromagnetic fields. Do not use this product in a coal mine, in a location where there is coal dust, or near flammable material as there is a risk of explosion. Do not disassemble, modify or repair this product as there is a risk of fire, electric shock and burn injury. If you think the product requires repair, contact the retail outlet where you purchased it or an authorized repair site. Only use the battery charger intended for this product as the battery charger. Use of another battery charger entails a risk of fire or burn injury from the battery bursting into flames due to possible differences in voltage or polarity. Do not use a damaged electric cord plug or loose electric outlet when charging as there is a risk of fire or electric shock. Do not charge the battery while covered by clothes or similar item as there is a risk of fire if the clothes ignite. Do not use the battery or charger when wet 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 battery 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 injury if it explodes.

[Transporting and carrying the instrument]
Be careful to protect this instrument from shock of impact and excessive vibration which may result in damage during transportation and shipment. When transporting the instrument, always put it in the case and wrap shockabsorbing material around it and be sure it is handled as FRAGILE.

[Checks and repairs]

Always check the instrument before beginning work and check that the instrument is maintaining the proper level of precision. Pentax bears absolutely 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 site. Never disassemble the instrument, battery or charger even if you do detect an abnormality as there is a 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 site.
CONTENTS PRECAUTIONS REGARDING SAFETY
SAFETY PRECAUTIONS (MUST BE FOLLOWED) USAGE PRECAUTIONS
1. BEFORE USING THE INSTRUMENT
1.1 NAMES OF PARTS 1.2 UNPACKING AND PACKING 1.3 STANDARD EQUIPMENT 1.4 ATTACHING AND CHARGING THE BATTERY 1.5 INSERTING / REMOVING SD CARD 1.6 INSERTING / REMOVING CF CARD 1.7 CONECTING USB CABLE 1.8 INTERNAL MEMORY 1.9 DETACHING / ATTACHING STYLUS PEN

2. DISPLAY AND KEYBOARD

2.1 DISPLAY AND KEYBOARD 2.2 OPERATION KEYS 2.3 ALPHANUMERIC INPUT 2.4 LD POINT, LASER POINTER
3. PREPARATION FOR SURVEYING
3.1 CENTERING AND LEVELING OF THE INSTRUMEN 3.2 LASER PLUMMET 3.3 LEVELING WITH CIRCULAR VIAL 3.4 EYEPIECE ADJUSTMENT 3.5 TARGET SIGHTING 3.6 ATTACHMENT AND DETACHMENT OF TRIBRACH
4. CHECKS AND ADJUSTMENTS
4.1 ELECTRONIC VIAL 4.2 CIRCULAR VIAL 4.3 VERTICAL RETICLE 4.4 PERPEND CULARITY OF LINE OF SIGHT TO HORIZONTAL AXIS 4.5 VERTICAL 0 POINT ERROR 4.6 LASER PLUMMET 4.7 OFFSET CONSTANT 4.8 BEAM AXIS AND LINE OF SIGHT 4.9 THE EDM BEAM AXIS

5. SPECIFICATIONS 6. APPENDIX
6.1 6.2 6.3 6.4 6.5 ATMOSPHERIC CORRECTION hpa AND mmHg CONVERSION TABLE ERROR WHEN NO ATMOSPHERIC CORRECTION IS MADE ATMOSPHERIC REFRACTION AND EARTH CURVATURE CORRECTION DISTANCE RANGE
7. NOTICE TO THE USER OF THIS PRODUCT

1.1 Names of parts

Top handle

Collimator

Focus ring

Power focus key

AF buton

Eyepiece ring

Instrument height mark

Eyepiece

Battery latch

Laser indicator

Battery pack

Circulator vial

Telescope tangent screw

CF card slot

Telescope clamp screw

Display panel

Clamp screw

Key board

Tangent screw

RS-232C connector

SD card slot
Leveling screw Base plate

USB connector

Detaching knob

Objective lens

A shift fixed screw is attached to Base plate of a shift base type model.
1.2 Unpacking and packing
[Unpacking the Instrument from the case]
Set the case down gently with the lid facing upwards. Open the latches while pressing down on the lock (safety mechanism) and open the lid of the case. Remove the instrument from the case.
[Packing the Instrument in the case]
Make sure the telescope is fairly level and lightly tighten the telescope clamp screw. Line up the housing marks (round yellow marks on the instrument) and tighten the upper and lower clamp screws. With the housing marks facing upward,set the instrument gently in the case without forcing it. Close the lid to the case and secure the latches.

1.3 Standard equipment

Instrument Carrying case BP02 battery BC03/AC01 charger Plumb bob Hexagonal wrench Rain cover Quick Reference Guide CD
1.4 Attaching and charging the battery

[Removing the Battery]

Turn the Battery latch anticlockwise and remove the battery pack. Lift up the battery pack and remove it from the instrument. Be absolutely sure to turn 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]

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. Turn the Battery latch clockwise to fix.
Turn and fix the Battery latch to lock the battery pack while in use

[Charging the battery]

The battery BP02 is not charged at our factory shipment. It must be changed before use. For BP02 charge, use the special BC03 charger.

[Connection of code]

Insert the output plug of the power supply code in Jack of the AC adaptor. Insert the output plug of the AC adaptor in Jack of the charger. Insert the power supply plug of the power supply code in the outlet of AC power supply.

[Time of refreshing and charge]
Battery BP02 is discharged from the state of a full charge at about 960 minutes and the charge is completed from the electrical discharge at about 130 minutes. However, the electrical discharge time is proportional to the remainder capacity of the battery. Moreover, the time required for refreshing might be different from the above-mentioned time according to a surrounding temperature and the state of the battery.
1.5 Inserting / removing SD card
Be sure to turn the instruments power off before inserting or removing the SD card.

Inserting SD card

1) Open the Slot cover 2) Insert the SD card into the slot. (The side with terminal should 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 card outdoors.
1.6 Inserting / removing CF card
Be sure to turn the instruments power off before inserting or removing the CF card.

Inserting CF card

1) Unlock the CF card slot cover 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.

Removing CF card

1) Unlock the CF card slot cover by pressing CF OPEN button, then, open the cover. 2) Press the Inject button so the CF card pops out. 3) After the CF card is removed, close the Slot cover completely.

1.7 Connecting USB cable

Be sure to turn the instruments 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.
Be sure the direction of USB mini B connector is same as that of the USB port.
Do not open/close the USB connector cover or connect/disconnect the USB cable outdoors.

1.8 Internal memory

W-800s internal memory stores data in a folder named DiskOnChip in /MyComputer. Be sure not to connect W-800 and a PC with USB cable and transfer the 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.

2.1 Display and keyboard

ESC key Laser and Electronic vial key Illumination key

Power key

Alphanumeric and +/- key

ENT key

Function key

Cursor control key

2.2 Operation keys
Key Description Used to turn ON/OFF power supply Used to return to previous screen or cancels an operation. Used to turn ON/OFF the illumination of the LCD display. Used to accept the selected (highlighted) choice or value displayed on the screen. [LASER] Used to operate the functions such as Laser plummet,electronic vial and Laser pointer.
[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

2.3 Alphanumeric input

The point name is inputted by the Alphanumeric keys as following. Key [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [.] [+/-] Letter under Key Letter & Figure order to input [ @] [. ] [ _ ] [ - ] [ : ] [ / ] [ 0 ] [ P ] [Q ] [ R ] [ S ] [ p ] [ q ] [ r ] [ s ] [ 1 ] [ T ] [U] [ V ] [ t ] [ u ] [ v ] [ 2 ] [ W] [ X ] [ Y ] [ Z ] [ w ] [ x ] [ y ] [ z ] [ 3 ] [ G] [ H] [ I ] [ g ] [ h ] [ i ] [ 4 ] [ J ] [ K] [ L] [ j ] [ k] [ l ] [ 5] [ M ] [ N ] [ O ] [m ] [ n ] [ o ] [ 6 ] [ ] [ ? ] [ ! ] [ _ ] [ ] [ ^ ] [ I ] [ & ] [ 7 ] [ A] [ B ] [ C ] [ a ] [ b ] [ c ] [ 8 ] [ D] [ E ] [ F ] [ d ] [ e ] [ f ] [ 9 ] [. ][ , ][ : ][ ; ][ #][ ( ][ ) ] [ + ] [ - ] [ * ] [ / ] [%] [ = ] [ < ] [ > ]
PQRS TUV WXYZ GHI JKL MNO ABC DEF
2.4 LD POINT, Laser Pointer
How to activate/terminate the laser beam emission differs depending on application software. For exact method of activating/terminating laser beam emission, refer to the instructions in the manuals of respective software.
The Laser indicator is turned on and the Laser pointer function is operating.
mark on the left of the screen blinks while the
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 visually align the laser beam to the target and mark the center. Confirm the alignment (horizontal and vertical) before measuring when performing accurate work like stake out when using the Laser pointer function. Please do not look at the laser source of beam directly.

3.1 Centering and leveling of the instrument
[Setting up the instrument and the tripod]
Adjust the tripod legs so that a height suitable for observation is obtained when the instrument is set on the tripod. Hang the plumb 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. If the tripod head is mis-leveled by the action of fixing the metal shoes into the ground, correct the level by extending or retracting each leg of the tripod. Setting up and turn on.

3.2 Laser plummet

Turn on the laser plummet function. How to activate/terminate the laser beam emission differs depending on application software. For exact method of activating/terminating laser beam emission, refer to the instructions in the manuals of respective software. The brightness adjustment step of the laser is 10 steps. Match the position by the tripod so that the laser mark coincides 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 make a shadow over the laser position.
The laser plummet is adjusted to be within +/- 0.5 mm at the instrument height of 1.5m at factory shipping. Please do not look at the laser source of beam directly.
3.3 Leveling with circular vial
Tripod is adjusted according to the following points by extending or contracting the legs so that the bubble of the Circular vial goes to the center of the circle. Shorten the leg at the side of the bubble or extend the leg opposite of the bubble to position the bubble in the center of the vial circle. All three legs are extended or contracted until the bubble is in the center. During this process, the foot is not placed on the tripod leg point and the position of the tripod points do not change. Rotate instrument horizontally and make two Leveling screws arbitrarily chosen parallel to the display. Turn on the Electronic vial function. Put the bubble of the Circular vial in the center of the circle when the display shows TILT OVER. Turn two Leveling screws arbitrarily chosen in an opposite direction mutually and put the vial of the horizontal Electronic vial in the center. (Figure A) Put the bubble of the lengthwise Electronic vial in the center by operating the Leveling screw of one remainder. (Figure B) The procedures are different according to the state of the Automatic inclination correction as following. 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 instrument over the ground mark correctly and fix the instrument by a center screw. Repeat from to

[Auto focus: Target sighting by Normal mode]
Loosen the telescope clamp and horizontal clamp screws. Point the telescope at the target using a collimator. Tighten the above two screws. Adjust the eyepiece. 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. Align the reticle accurately on the target using telescope and horizontal tangent screws.

Target Collimator

AF button
Target sighting If the target image does not move, there is no parallax. If it moves, eliminate the parallax. Even when vertical angle measurement is not performed, it is recommended that the target should be placed at the reticle center. Operating the Power focus key rotates the Focus ring, so do not touch it while it is rotating.
[Auto focus :Target sighting by Continuous mode]
Loosen the telescope clamp and horizontal clamp screws. Point the telescope at the target using a collimator. Tighten the above two screws. Adjust the eyepiece. Look through the telescope and then press the AF button for two seconds to beep, and release the key to enter into the Continuous mode. Align the reticle accurately on the target using telescope and horizontal tangent screws. Point the telescope to the next target as well.
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 the AF button or operating the Power focus key releases the continuous mode. Operating the Power focus key rotates the Focus ring, so do not touch it while it is rotating.
[Auto focus :Target sighting by Power focus mode]
Loosen the telescope clamp and horizontal clamp screws. Point the telescope at the target using a collimator. Tighten the above two screws. Adjust the eyepiece. Look through the telescope, and then operate the Power focus key and focus on the target. Align the reticle accurately on the target using telescope and horizontal tangent screws.

Target sighting

Tilting the Power focus key clockwise makes it possible to focus on closer objects and counterclockwise will focus on farther objects. Tilting angle of the Power focus key makes it possible to perform following three focusing speeds. Low speed: When tilted to middle position by approx. 5 degrees Middle speed: When tilted fully by approx. 10 degrees High speed: When tilted fully by approx. 10 degrees and passed one second Operating the Power focus key rotates the Focus ring, so do not touch it while it is rotating.

[Target sighting by manual focus]
Loosen the telescope clamp and horizontal clamp screws. Point the telescope at the target using a collimator. Tighten the above two screws. Adjust the eyepiece. Look through the telescope and then rotate the Focus ring and stop it where the target can be seen clearly and the target image does not move in relation to reticle even if your eye is vertically and horizontally moved. Aligh the reticle accurately on the target using telescope and horizontal tangent screws.

Collimator Focus ring

Target sighting The Focus ring rotation clockwise makes it possible 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-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 arrow points upward, and lift the instrument up.

[Attachment]

Mount the instrument on the tribrach with the guide marks coinciding, and rotate the locking knob until the arrow points downward. The guide and guide mark must be fitted to attach the instrument. When the tribrach does not need to be attached or detached or instrument is to be transported, tighten the recessed screw with a screwdriver to fix the locking knob.
Checks and Adjustments should be performed before and during measurement. The instrument should be checked after long storage and transportation. The checks should be performed in the following order.
[Cautions on CHECKS AND ADJUSTMENTS]
When adjustment is completed, be sure that adjusting screws are completely tightened. When finishing turning adjusting screws, be sure that screws are turned in a direction for tightening. Repeat check after adjustment, and check if the instrument has been adjusted properly. When adjustment is completed, be sure that adjusting screws are completely tightened. When finishing turning adjusting screws, be sure that screws are turned in a direction for tightening.

4.1 Electronic vial

[Checks]
Align the Electronic vial in parallel with a line joining any two of the leveling screws. Then, adjust the two screws to center the bubble in the Electronic vial. Turn two leveling screws in an opposite direction mutually and have the bubble of the side of the electronic vial to the center. Make the bubble of the length of the electronic vial to the center by operating the leveling screw of one remainder. 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 vicinity of the center. Please check the electronic vial in a steady environment that has no vibration or rapid temperature change. When the electronic vial is checked outdoors and on a tripod, avoid sunlight influence by using a sunshade. Please wait for a while until the instrument and tripod are at the same temperature as the surrounding air. When the instrument is seen at the position of Left circle movement and the inclination of the , instrument become the same on the screen in the electronic vial. Please note that the movement of the bubble becomes opposite direction if it is seen at the position of Right circle.

If Points B and C are not aligned, mark Point D at 1/4 the length of the BC, from Point C in the direction of Point B. Using the adjustment pin, rotate the reticle adjustment screws horizontally opposite each other (see preceding page), and move the reticle to sight Point D. 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 whom the instrument was purchased.
4.5 Vertical 0 point error
Be sure to follow check procedures mentioned below after making adjustments on reticle and perpendicularity of line of sight to horizontal axis.
Set up the instrument and turn the power on. Sight the telescope at any reference target A at Normal state. Read the vertical angle (). Turn the telescope and rotate the alidade. Sight the same target A again at Back state and read the vertical angle R. If +R = 360, no further adjustment is necessary.
If the deviation d (+ R - 360 ) is wide, contact your local dealer.

4.6 Laser plummet

Set the instrument on the tripod, and place a piece of white paper with a cross drawn on it right under the instrument. Press the [LASER] key, and move the paper so that the intersecting point of the cross comes to the center of the Laser mark. Rotate the instrument around the vertical axis, and observe the center mark position against the intersecting point of the cross at each 90 rotation. If the Laser mark always coincides with the intersecting point, no adjustment is necessary.
When a center part where a cross intersection and the laser mark 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 simple way as described below.

1. Locate points A, B and C at about 50m intervals on even ground. 2. Set up the instrument at point A, and measure the distances between AB and AC. 3. Set up the instrument at point B, and measure the distance BC. 4. Obtain the offset constant (K): K = AC - (AB+BC)
Contact your local dealer for adjustment of the off-set constant when the K is not nearly 0.
4.8 Beam axis and line of sight
Be sure to check that the beam axis and line of sight are aligned when the adjustments on reticle and perpendicularity of line of sight to horizontal axis are made.
Set the prism at a distance greater than 50 m. Accurately sight the center of the prism through the telescope. Turn the power on and press [MEAS] to measure. No adjustment is necessary if beam receiving buzzer sounds immediately and measurement value is displayed in a few seconds.
If instrument function is not as described in , contact your local dealer. This check should be done under good weather conditions.

4.9 The EDM beam axis

The distance measurement (EDM) beam axis is adjusted 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.
Install the instrument on the tripod and level it at the distance of approx.50 m from the wall. Displace the target plate attached to the end of this manual. Place the target plate adjusting its center to the center of telescope cross line and to be about horizontal to the instrument. Turn the power on and set target type to Reflector sheet. When starting measurement, the laser spot is will appears on the target. The adjustment is not necessary if the center of the laser spot stays within 10 mm from the center of the target.
At the procedure 4. above, if the Center of laser spot is not within the internal circle (10mm) of the target plate, the adjustment is necessary. Please contact your PENTAX dealer.

5. SPECIFICATIONS

Model Telescope W-822NX Magnification Effective aperture Resolving power Field of view Minimum focus Focus Distance measurement Laser class Measurement range (Good condition) 3 Reflectorless 1 Reflectorsheet 2 Mini Prizm 1P 3P Accuracy 4 Prism / Reflector Sheet Reflectorless At Auto-ATM. Correction Prism / Reflector Sheet Reflectorless Minimum count Measurement time 5 Repeat meas. Normal (1mm): Quick (1mm): Track (10mm): Initial meas. Normal (1mm): Quick (1mm): Track (10mm): Angle measurement Measuring method Detection method Minimum count Accuracy (ISO 17123-3) Compensator Tangent screw Sensitivity of vials Plate level (electronic) Circular level Plummet Base Dust and Water Protection Ambient temperature Tripod thread Dimensions / Weight Dimension Weight (incl. Battery) Carrying case Battery pack BP02 Power source Operation time Weight Battery charger BC03 and AC Adapter AC01 Input voltage (AC01) Output vultage (BC03) Weight W-825NX W-835NX 30x 45mm (EDM 45mm) 3.0 2.6% (1 30') 1.0 m Auto focus / Power focus / Manual Visible Laser: Class IIIa (3R) (Reflectorless)/ Class II (2) (Prism. sheet) 1.5 ~ 550m 1.5 ~ 600m (800m) 1.5 ~ 2500m (3000m) 1.5 ~ 7000m (9000m) 1.5 ~ 9000m (9999m) 1.5m ~ 10m: (3+2ppm x D)mm 10m ~ : (2+2ppm x D)mm) 1.5m ~ 300m: (5+2ppm x D)mm 300m ~ : (7+10ppm x D)mm 1.5m ~ 10m: (3+10ppm x D)mm 10m ~ : (2+10ppm x D)mm) 1.5m ~ 300m: (5+10ppm x D)mm 300m ~ : (7+18ppm x D)mm 0.1mm (Fine mode), 1mm (Normal mode), 10mm (Track mode) Prism, Ref.sheet 2.0sec. Ref.less 2.0sec. Prism, Ref.sheet 1.2sec. 6 Prism, Ref.sheet 0.4sec. Ref.less 0.4sec. Prism, Ref.sheet 2.5sec. Ref.less 2.4sec. Prism, Ref.sheet 1.7sec. 6 Prism, Ref.sheet 2.5sec. Ref.less 2.5sec. Absolute Rotary encoder Vertical / Horizontal angle: 2 sides 1 / 5 selectable axis speed W-823NX

axis 1 speed

30/1div. 8/2mm Visible Laser, 0,5mm (instrument height 1.5m) Detachable Shifting IP54 (instrument only) -20C ~ 50C / -4F ~122F (Working range) 5/8 x 11 35mm P2 197(W) x 347 (H) x 217 (L)mm 6.3 kg 6.2 kg 380(W) x 292 (H) x 475 (L)mm / 3.2 kg Ni-MH 4300mAh (Rechargeable), DC6.0V Continuous approx. 3.0 hrs (ETH+EDM), 15 hrs (ETH) with approx. 2.2 hrs of charging time 380g AC 100 ~ 240V DC7.5V 280g
Model Data Processor CPU, Clock frequency OS Application software Internal memory Memory card I/F Display / Keyboard Display type Quantity Keys Display back light Laser Pointer Date clock

W-822NX

W-823NX W-825NX Intel XScale, 400MHz Microsoft Windows CE.NET 4.2 Selectable SDRAM = 64MB FLASH = 128MB (built-in) 2GB (Max) 8 RS-232C , CF Type II , SD CARD , USB

W-835NX

3.7 inch, Color LCD, 640x480 pixels 9 with back light and touch panel function (2nd optional) 33 each (12 numeric / 11 function / 10 special) Intensity settings: 10 steps Yes Yes
[Note] 1 The measurement range and accuracy of reflectorless, and time required to measure may vary by the shape, size of surface area and reflection rate of the target and its environment. The measurement range of reflectorless is determined by the white side of the Kodak Gray Card. 2 Reflector sheet: PENTAX genuine Reflector sheet 3 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. 4 When automatic atmospheric correction is on, the EDM error is 10ppm in prism and reflector sheet mode. 5 EDM measuring time is determined in good conditions. It may takes longer than usual to measure the distance exceeding 4000m in prism mode and 300m in reflectorless mode. 6 Quick mode, which functions with prism and reflector sheet, is effective only under normal mode(1mm) and up to 500m. 7 In addition to dual-axis correction in the (X) and (Y) direction, mechanical error in the instrument is corrected. 8 Memory card is not supplied with the instrument. 9 Depending on application software. Remarks: The brand names mentioned in the specifications are a trademark or a registered trademark of each company.

6. APPENDIX

6.1 Atmospheric correction
The speed at which light travels through the air varies depending on the temperature and atmospheric pressure.The W-800 series is designed to measure distances at the speed of light in order to measure accurately, atmospheric correction 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.

TICE TO THE USER OF THIS PRODUCT
To assure compliance with the Safety standard 21 CFR, Chapter 1. Subchapter J. The U.S. bureau of Radiological Health requires the following information to be provided to user:
It can be dangerous to look into the beam with optical equipment such as binoculars and telescopes.
1. Specifications of Laser Radiation A) The EDM module of the W-800 series produces a visible light beam, which is emitted from the telescope objective lens and the center hole of the instrument base plate.The W-800 series is designed and built to have a laser diode radiating at 620-690 nm. Radiant power The W-800 series is designed and built to radiate a maximum average radiant power of 4.75mW from the telescope, and 0.95mW from the center hole of the base plate.The user may be subject to this radiation as a beam while operation until such time that the instrument is turned off.
2. The following labels are affixed to and must remain attached to this laser product. A) The following Certification 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. Caution label is located near the exit aperture: AVOID EXPOSURE Laser radiation is emitted from this aperture. Warning logotype is located on the surface of the telescope: DANGER LASER RADIATION AVOID DIRECT EYE EXPOSURE Warning label is Located near the exit aperture.

B) C) D)

3. Caution to maintain the safety in compliance with the standard A) B) C) D) To maintain the safety standard, refrain from any operation, maintenance, or adjustment other than described in this instruction manual. Operation, maintenance or adjustment other than those specified in this instruction manual may result in hazardous radiation exposure. Maintenance and repair not covered in this manual must be done by an authorized Pentax dealer. How to activate/terminate the laser beam emission differs depending on application software. For exact method of activating/terminating the following types of laser beam emission, refer to the instructions in the manuals of respective software. 1) Laser beam emission by the Distance measurement 2) Laser beam emission by the Laser pointer 3) Laser beam emission by the Laser plummet