trademarks of Trimble Inc., registered in the United States Patent and
Trademark Office and other countries.
MagDrive and MultiTrack are trademarks of Trimble Inc.
All other trademarks are the property of their respective owners.
Release Notice
This is the June, 2017 release revision C of the Trimble SPSx20 Total
Station user guide, part number 57075001-ENG. It applies to the
Trimble SPSx20 Total Station.
The following limited warranties give you specific legal rights. You may
have others, which vary from state/jurisdiction to state/jurisdiction.
Product Warranty Information
For applicable product warranty information, please refer to the
Warranty Card included with this Trimble product, or consult your
Trimble dealer.
Regulatory Information
For applicable regulatory information, please refer to the Trimble SPS
Series Total Station Regulatory Information Document included with
this Trimble product, or consult your local dealer.
Registration
To receive information regarding updates and new products, please
contact your local dealer or visit www.trimble.com/register. Upon
registration you may select the newsletter, upgrade or new product
information you desire.
Trimble SPSx20 Total Station User Guide | 2
Page 3
Important Information
For safety information please refer to the Trimble SPS Series regulatory information document delivered
with the product.
Welcome to the Trimble SPSx20 Total Station user guide. This manual describes how to setup and use
the Trimble SPSx20 Total Station. Even if you have used an optical total station before, Trimble
recommends that you spend some time reading this manual to learn about the special features of this
product.
In this user guide Trimble SPSx20 Total Station refers to all of the available models Trimble SPS620 and
SPS720 Total Station. When the description needs to be distinguished between the models they will be
referred to as Trimble SPS620 or SPS720 Total Station.
Related Information
For more information about this product, please visit our web site at:
www.trimble.com
Technical Assistance
If you have a problem and cannot find the information you need in the product documentation, contact your local Distributor. Alternatively, request technical support using the Trimble web site at:
www.trimble.com
Your Comments
Your feedback about the supporting documentation helps us to improve it with each revision.
E-mail your comments to ReaderFeedback@trimble.com.
Registration
To receive information regarding updates and new products please register on the Trimble web site.
www.trimble.com/register
Trimble SPSx20 Total Station User Guide | 8
Page 9
2
Getting Started
► Trimble SPSx20 Total Station Description
► Battery
► Turning Instrument On/Off
2
Trimble SPSx20 Total Station User Guide | 9
Page 10
2 Getting Started
Instr. height mark
Foc us ing
servo knob
Vertica l motion
servo knob
Horizontal motion
servo knob
Communication (COM)
Bottom instrument
Coarse sight
Coarse sight
height mark
Removable
Power (+12V)
handle
Eye-piece
On/Off and trigger key
connector
connector
Trimble SPSx20 Total Station Description
This section describes the Trimble SPSx20 Total Station controls. Trimble recommends that you take
some time to familiarize yourself with the names and the locations of the controls, see Figure 2.1 and
Fig ure 2 .2.
Trimble SPSx20 Total Station
Figure 2.1Operator’s view of the Trimble SPSx20 Total Station
Trimble SPSx20 Total Station User Guide | 10
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2 Getting Started
Radio antenna
Compartment for
connector
internal battery
Removable handle screws
Coaxial optics for
angle and
distance
measurements,
tracker and
visible laser
pointer
Optics for
Tracklight
Figure 2.2Front view of the Trimble SPSx20 Total Station
Face 2 Display
The face 2 display is a graphical display with a built-in backlight, and three control buttons. See
Fig ure 2 .3
Trimble SPSx20 Total Station User Guide | 11
Page 12
2 Getting Started
Change faceEnter
Scroll
1:250
Setup
Exit
Figure 2.3Face 2 display and keyboard
When a secondary function is available on a button, an icon appears at the bottom of the display. To
access the secondary function, press and hold the appropriate key.
When a controller is connected to the instrument by cable or radio, the SCS900 Site Controller software
running on the controller controls the face 2 display and keyboard, and determines which secondary
functions are available. For details on how the software controls the face 2 display, refer to the SCS900
Site Controller software documentation.
When there is no controller attached to the instrument,andyou turn on the instrument using the
On/Off key, the face 2 display shows an electronic leveling screen. See Figure 2.4
Figure 2.4Electronic leveling screen on the face 2 display
For information on how to access the compensator menu and instrument setup menu from the face 2
display and keyboard see Instrument Setup on page 21.
Optical Plummet
The instrument is equipped with an optical plummet, which has 2x magnification and a focusing range
of 0.5 m to infinity. The instrument can be positioned to an accuracy of 0.5 mm at 1.5 m over a ground
mark.
Trimble SPSx20 Total Station User Guide | 12
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2 Getting Started
Figure 2.5Optical plummet
As shown in Figure 2.5:
• To focus the crosshairs, rotate the eye-piece.
• To focus the optical plummet to the ground, push in or pull out the optical plummet.
For information on how to adjust the optical plummet see Adjusting the Optical Plummet on page 43.
Battery
For battery safety and environmental information, please refer to the Trimble SPS Series regulatory
information document delivered with the product.
Charging the Lithium-Ion Battery
The battery is supplied partially charged. Charge the battery completely before using it for the first time.
• To charge the battery, use only a charger that is recommended by Trimble for charging the Lithiumion battery.
• Charge the battery before using the total station if the equipment has been stored for longer than six
months.
For more information refer to the Trimble Dual Slot Charger User Guide.
Trimble SPSx20 Total Station User Guide | 13
Page 14
2 Getting Started
Press
Open
Inserting the Internal Battery
The Trimble SPSx20 Total Station internal battery fits into the battery compartment on the side of the
Trimble SPSx20 Total Station. This battery can easily be removed and replaced. To insert the battery:
1. Unclip the battery compartment door
2. Slide the battery into the battery compartment with the battery connectors positioned towards the
top of the Trimble SPSx20 Total Station. See Figure 2 .6
Figure 2.6Removing and replacing the internal battery
Trimble Multi Battery Adapter
WARNING – Use only the specified battery and cable with the Multi Battery Adapter. Use the
C
adapter only to provide power to the specified Trimble product. Never attempt to charge batteries
while they are in the adapter. Please refer to the Trimble SPS Series regulatory information
document delivered with the product.
The Multi Battery Adapter is an external battery adapter that holds and connects up to three Trimble
SPSx20 Total Station batteries. The Multi Battery Adapter has a hook so that the adapter can be
attached to the tripod. See Figure 2 .7
Trimble SPSx20 Total Station User Guide | 14
Page 15
Figure 2.7Multi Battery Adapter
HookConnector
Batteries
Battery cradle
Battery cradle
Connecting the Trimble Multi Battery Adapter
2 Getting Started
The Trimble Multi Battery Adapter can be connected to the Trimble SPSx20 Total Station with a
standard Trimble 6-pin Hirose battery cable. See Fig ure 2 .8
CAUTION – Use only the gray cables with 6-pin Hirose connectors from Trimble when connecting
C
a cable to the Trimble SPSx20 Total Station and Multi Battery Adapter.
Trimble SPSx20 Total Station User Guide | 15
Page 16
2 Getting Started
Power (+12V) connector
Trimble logo
Figure 2.8Connecting the Multi battery Adapter
TIP – When connecting the cable to the Trimble SPSx20 Total Station, keep the Trimble logo on the
B
connector upward.
Turning Instrument On/Off
The instrument is turned on/off with the On/Off and Trigger key, an LED in the key will indicate the
instrument status.
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2 Getting Started
Trimble SPSx20 Total Station
Tu r n I ns tr u m e n t On
Press the Trigger key to turn on the Trimble SPSx20 Total Station. The Trimble SPSx20 Total Station will
also turn on if you connect a 12 V power supply to the 12 V power connector and a TSC3 Controller (or
PC) to the communication (COM) connector.
The LED will be on solid.
Tu r n I ns tr u m e n t Of f
To turn off the Trimble SPSx20 Total Station press and hold the Trigger key until the LED is off.
The LED will be off.
Trimble SPSx20 Total Station User Guide | 17
Page 18
3
Setup
► Setup
► Starting the Instrument
► Leveling
► Instrument Setup
► The Laser Pointer
► Measuring the Instrument Height
► Connecting the TSC3 Controller
3
► Pre Measurement Check List
Trimble SPSx20 Total Station User Guide | 18
Page 19
3 Setup
Setup
A stable setup is critical for high precision measurements.
Setup Stability
When performing a setup it is important to consider the following:
1. Set tripod legs wide apart to increase the stability of the setup. A setup where one leg is placed on e.g
asphalt and the other two on soil will still be a stable setup provided that the tripod legs are set wide
enough. If it is not possible to set the tripod legs wide apart due to obstacles, then the tripod can be
lowered to increase stability.
Figure 3.9Correct set up
2. Make sure that all the screws on the tripod and/or tribrach are tightened to avoid any play.
3. Any high quality tripod and tribrach can be used. However, Trimble strongly recommends the use of
tripod heads made of steel, aluminum or similar material. Tripod heads of fiberglass or other
composite materials are not recommended.
See Servo Technology on page 56 for more information.
Trimble SPSx20 Total Station User Guide | 19
Page 20
3 Setup
-Select Mode-
>>Setup/Level
1:250
Setup
Exit
C
Waiting for
connection...
Ti m e o u t
in 10 sec.
10
- Setup -
>>
Radio settings
Reference HA
Exit (to level)
C
Adjustments
Channel 8
Network ID 10
Firmware ve rsion
Measurement Stability
Take into account that precision instruments require sufficient time to adjust to the ambient
temperature. The following rule-of-thumb for a high precision measurement applies: Temperature
difference in degree Celsius (°C) x 2 = duration in minutes required for the Trimble SPSx20 Total Station
to adjust to the new temperature.
Avoid sighting across fields with intense heat shimmer by sun light, e.g. at noon.
Starting the Instrument
NOTE – Before following any of the instructions below, put the instrument in the face 2 position, i.e. the
telescope eyepiece, face 2 keyboard and display are pointing towards you.
The face 2 display menus described in this chapter can only be accessed when there is no controller
connected (by radio or cable), please disconnect the controller before starting the instrument.
Start the instrument by pressing the trigger/on/off key.
Once you start the instrument, the Select Mode menu appears in the face 2 display, see Figure 3.10. To
go to Setup/Level press
NOTE – If no selection is made within 10 seconds the instrument will go to suspend mode. To return to
the select mode menu press the trigger key.
C.
Figure 3.10 Select mode menu
Trimble SPSx20 Total Station User Guide | 20
Page 21
3 Setup
X:0.0054
Y:0. 0145
A
C
Long
press
- Setup -
>>
Radio settings
Fir mware version
Reference HA
Exit (to level)
Adjustments
1:250
Setup
Exit
1:250
Setup
Exit
Leveling
Once you have selected Setup/Level, the face 2 display appears with the electronic bubble for leveling. If
there is a controller connected by radio or cable, the controller software controls the face 2 display.
Fig ure 3.11 shows the leveling process.
To toggle between a graphical or numerical display make a long press on
To change the graphical displays sensitivity (zoom) make a short press on
To accept and enter the setup menu press
C.
A.
a.
Figure 3.11The leveling process
NOTE – If the instrument is inactive for longer than 300 seconds (5 minutes) it will go to suspend
mode. See Power Management on page 59
Instrument Setup
With the face 2 display, you can access a number of instrument functions and routines without a
controller attached:
In the leveling display select
NOTE – It is possible to access the instrument setup menu without levelling the instrument.
Setup
by pressing C, the Setup Menu appears:
Trimble SPSx20 Total Station User Guide | 21
Page 22
The instrument Setup menu is structured as follows:
- Setup -
>>
Radio settings
Fir mware version
Reference HA
Exit (to level)
Adjustments
•Exit (to level)
• Radio settings. See page 22.
• Reference HA. See page 26
• Adjustments. See page 27.
–Back
3 Setup
– Compensator calibration. See page 27.
– HA/VA and trunnion axis collimation. See page 29.
– Tracker collimation. See page 33.
– Laser pointer on/off. See page 34.
• Firmware version information. See page 36.
• Language settings
Radio Settings
In the Radio settings menu it is possible to set the radio channel and network ID number.
NOTE – The radio channel and network ID for machine control & Machine Guidance use must be set
using the Trimble SCS900 software. These can not be set from the face 2 display.
Set Radio Channel
1. Press A to scroll to
2. Press
A to scroll to
Radio settings
Set radio channel
and then press C.
and then press C.
Trimble SPSx20 Total Station User Guide | 22
Page 23
3 Setup
-Radio settings-
Set radio channel
Set network ID
Back...
>>
C
- Setup -
>>
Radio settings
Fir mware versi on
Reference HA
Exit (to level)
Adjustments
Set radio channel
Channel: 1
C
next
set
>>
Set radio channel
Channel: 8
next
set
>>
For
examp le
7
short
presses
3. To change the radio channel number press A to select
channel number in the display.
NOTE – a short press on the enter key will increment the radio channel in increments of 1, pressing and
holding the enter key, will increment the radio channel in steps of 10.
4. When you have found the channel number of your choice press
to store this channel number. You will then be returned to the
Next
and then press C to change the
A to select
Radio Settings
Set
and then press C
menu.
Trimble SPSx20 Total Station User Guide | 23
Page 24
3 Setup
Set radio channel
Channel: 8
C
next
set
>>
Storing radio
parameters
-Radio settings-
Set radio channel
Set network ID
Back...
>>
5. If you want to cancel press A to select
menu.
6. To return to the Setup menu press
Each combination of channel and network ID is unique, however try to keep each SPS system on a
separate radio channel to avoid any likelihood of conflict.
NOTE – The instrument and machine or instrument and robotic rod have to have the same radio
channel and network ID for communication over radio to take place.
A to scroll to
Cancel
and then press C to return to the
Back
and then press C.
Radio Settings
Trimble SPSx20 Total Station User Guide | 24
Page 25
Set Network ID
C
-Radio settings-
Set radio channel
Set network ID
Back...
>>
- Setup -
>>
Radio settings
Security
Exit (to level)
Adjustments
Firmware version
Set network ID
Network ID: 100
C
next
set
>>
Set network ID
next
set
>>
For
examp le
1
5
short press
long press
and
Network ID: 115
1. Press A to scroll to
Radio settings
3 Setup
and then press C.
2. Press
3. To change the network ID number press
NOTE – a short press on the enter key will increment the network ID in increments of 1, pressing and
holding the enter key, will increment the network ID in steps of 10.
A to scroll to
number in the display. The available network ID range is 0-255.
Set network ID
and then press C.
A to select
Next
and then press C to change the channel
4. When you have found the network ID number of your choice press
A to select
C to store this network ID number. You will then be returned to the
Trimble SPSx20 Total Station User Guide | 25
Set
Radio Settings
and then press
menu.
Page 26
3 Setup
Set network ID
Network ID: 115
C
next
set
>>
Storing radio
parameters
-Radio settings-
Set radio channel
Set network ID
Back...
>>
Aim at target
C
Cancel
OK
- Setup -
>>
Radio settings
Adjustments
Reference HA
Exit (to level)
Firmware ve rsion
5. If you want to cancel press A to select
6. To return to the Setup menu press
Each combination of radio channel and network ID is unique, however try to keep each SPS system on a
separate channel to avoid any likelihood of conflict.
NOTE – The instrument and machine or instrument and robotic rod have to have the same radio
channel and network ID for communication over radio to take place.
Reference HA
1. Press A to scroll to
menu.
Reference HA
Cancel
A to scroll to
and then press C.
and then press C to return to the
Back
and then press C.
Radio Settings
Trimble SPSx20 Total Station User Guide | 26
Page 27
3 Setup
-Adjustments-
Tracker collim.
HA/VA collimation
Compensator calib.
Laser pointer
Back...
>>
C
- Setup -
>>
Radio settings
Reference HA
Exit (to level)
Adjustments
Firmware ve rsion
2. Aim the instrument in face 2 towards the target and then press enter C to set or b to cancel.
Since the instrument is aimed at the reference target in face 2 while setting the reference HA, the
instrument’s horizontal circle will be set to 180 degrees or 200 grads. This makes the reference HA 0
degrees or grads in face 1.
The Setup menu appears.
Adjustments Menu
The adjustments menu contains all the instrument collimation and calibration routines.
•Press
A to scroll to
Adjustments
and then press C.
Compensator Calibration
The SPSx20 Total Stations are all equipped with a dual axis compensator. The compensator is active
when the instrument is switched on. The compensator should be calibrated periodically, to adjust for
any minor changes in the instrument caused by normal wear and tear, shipping or temperature
variations.
To calibrate the compensator, the instrument needs to be in perfect balance. After calibration the
compensator sensor will automatically adjust and allow for changes in that balance caused by the
presence or the absence of an internal battery.
To minimize imbalance in the instrument:
• An internal battery must be present in the battery compartment.
• The instrument handle must be attached.
• The instrument will automatically position the telescope and distance unit for best balance.
To start the compensator calibration:
1. Level the instrument. The instrument will automatically check if the compensator is within range
before the calibration is started.
2. Press
3. Follow the instructions in the display. Figu re 3.12.
NOTE – Trimble recommends that you regularly carry out a compensator calibration, particularly when
measuring during high temperature variations and where the highest measurement accuracy is
required.
A to scroll to
Compensator calib.
and then press C.
Trimble SPSx20 Total Station User Guide | 27
Page 28
3 Setup
Ensure instrument
handle is installed.
Balancing...Compensating...
Compensation
complete!
C
C
-Adjustments-
Tracker collim.
HA/VA collimation
Compensator calib.
Laser pointer
Back...
>>
Next
NOTE – If a compensator calibration has been performed, Trimble recommends you carry out an
HA/VA and Tracker Collimation. Performing a compensator calibration invalidates the previously stored
values from the last HA/VA and Tracker collimation, so it is imperative that you carry out these
collimations each time you do a compensator calibration.
The calibration process involves the instrument automatically reading the compensator value at a
series of predetermined positions through the full rotation of the instrument. The process takes
approximately one minute to complete. During the process the instrument should be on a stable
platform, free from vibration and untouched by the user.
Figure 3.12 Compensator calibration routine
Trimble SPSx20 Total Station User Guide | 28
Page 29
3 Setup
HA/VA Collimation and Trunnion Axis Tilt
The Trimble SPSx20 Total Station instrument utilizes precise angle and distance measurements to
determine the 3D position of the point being measured. The instrument’s design facilitates the ability to
measure all points with a single pointing to the target in the face 1 position. All electronic total stations
are subject to collimation errors in both the horizontal and vertical angle measuring systems, and also
errors caused by the axis of the telescope not being truly perpendicular to the vertical of the instrument.
In order to compensate for these errors, the collimation routine allows the operator to accurately
determine the current errors in the instrument, and store the errors as corrections to be applied to all
measurements made in a single pointing to a target. In this way the Trimble SPSx20 Total Stations will
always provide accurate 3D positions:
The Collimation errors and Trunnion axis tilt will change over time, the most common changes being
caused by
• Wear and tear with use
• Bumps and knocks during transit
• Large changes in operating temperature
Trimble recommends that a HA/VA collimation check and tilt axis check be carried out routinely as
follows:
• After any long uncontrolled transport of the instrument (e.g. after service or shipment to a new
location)
• After any accidental knock or drop
• At any time when the operating temperature changes by more than 10°C (18°F)
• At any time when the instrument changes it's height above sea level by more than 500m (1640 Feet)
• At any time when the highest accuracy positions are required
• Routinely on a periodic basis (Monthly, weekly etc.)
• Anytime a compensator calibration is performed
Trimble also recommends that the operator keep a record of the dates and values measured so that any
gross changes can easily be detected. Gross changes can indicate the need for a check by an approved
service center.
When carrying out collimation error checks using controller and SCS900 software, Trimble
recommends that the user maintain a Site and Work Order in the SCS900 system especially for the
purpose of tracking the instrument calibration process. SCS900 will store the new collimation and
trunnion axis tilt values within the currently open work order. Maintaining a log of all instrument checks,
helps QA and QC processes over the lifetime of the instrument.
The adjustment of the instrument for HA/VA collimation and Trunnion Axis tilt is a two stage process.
The Horizontal and Vertical collimation and the trunnion axis tilt correction have been measured and
stored in the instrument at the factory.
In all calibrations, multiple sightings will be made in both faces to ensure that any minor pointing errors
can be eliminated in the accurate determination of current collimation error values.
In a new instrument the values should be close to zero, over time these will change. The instrument
allows a maximum value of 0.05 grads (0.045 degrees) in the HA, VA and Trunnion axis tilt values. If
these values are exceeded, the instrument will need service to rectify a mechanical problem.
Trimble SPSx20 Total Station User Guide | 29
Page 30
3 Setup
HA: 0.0010
VA: 0.0012
Cancel
-Current values-
Continue
>>
C
-Adjustments-
Tracker collim.
HA/VA collimation
Compensator calib.
Laser pointer
Back...
>>
Aim on target
New observation
Change face
>>
Fac e-1 obs : 0
New observation
Change face
Fac e-2 obs: 0
>>
C
1. Press A to scroll to
The current collimation values appear.
2. Press
A to scroll to one of the following:
–
Continue
–
Cancel
Then press C to continue the HA/VA collimation test.
. Then press C to return to the
HA/VA collimation
and then press C.
Adjustments
menu.
3. Press
If you select New observation:
If you select Continue:
A to scroll to one of the following:
–
New observation.
–
Change face
–
Cancel
a. Aim accurately in face 2 towards a point near the horizon at max. ±5 grads (± 4.5 degrees) to the
horizontal and at a minimum distance of 100 m (328 ft.).
b. Press
c. Re sight the instrument at the same point and press the enter key again. Repeat this process for a
minimum of 3 sightings in face 2.
d. Press
e. Aim accurately towards the same point as that used in face 2.
f. Press
. Then press C to return to the
A to scroll to
A to scroll to
A to scroll to
Then press C to continue the HA/VA collimation test.
. Then press C to change between face 1 and 2.
New observation
Change face
New observation
. Then press C to change to face 1.
Adjustments
. Then Press C to measure and record a pointing.
. Then Press C to measure and record a pointing.
menu.
Trimble SPSx20 Total Station User Guide | 30
Page 31
3 Setup
Fac e-1 obs: 5
New observation
Change face
Fac e-2 obs: 5
>>
HA: 0.0010
VA: 0.0012
-Current values-
Trunnion coll.
>>
Store correction
Aim on target
New observation
Change face
>>
HA: 0.0010
VA: 0.0012
-Current values-
Trunnion coll.
>>
Store correction
C
g. Re sight the instrument at the same point and press the enter key again. Repeat this process for
the same number of times as in face 2.
As observations are made on the first face (either face 1 or face 2), the angle values are stored and
the counter increases. When one or more observations have been taken on each face, and the
number of observations on each face are the same, the software calculates and displays the new
horizontal and vertical collimation values.
4. Press
–
Trunnion coll
–
Store correction
–
Cancel
Select
5. Press
Trunnion coll.
A to scroll to one of the following:
. Then press C to continue to Trunnion collimation.
. Then press C to accept and store the new collimation values.
. Then press C to return to the
to continue with trunnion axis tilt collimation.
A to scroll to
Trunnion coll.
Then press C to continue the Trunnion axis tilt test.
adjustments
menu.
Trimble SPSx20 Total Station User Guide | 31
Page 32
6. Press A to scroll to one of the following:
Face -1 obs : 0
New observation
Change face
Face -2 obs: 0
>>
Face -1 obs : 5
New observation
Change face
Face -2 obs: 5
>>
C
Trunnion: 0.0003
Cancel
-Current values-
>>
Store correction
C
-Adjustments-
Tracker collim.
HA/VA collimation
Compensator calib.
Laser pointer
Back...
>>
–
New observation
–
Change face
–
Cancel
. Then press C to return to the adjustments menu.
. Then press C to continue the trunnion axis tilt test.
. Then press C to change face.
3 Setup
If you select
a. Aim accurately in face 2 towards a point at least 15 grads (13.5 degrees) above or below the point
where the collimation test was made at a minimum distance of 30 m (66 ft.).
b. Press
c. Press
d. Aim accurately towards the point.
e. Press
As observations are made on the first face (either face 1 or face 2), the angle values are stored and
the observation counter increases. When one or more observations has been taken on each face,
and the number of observations on each face are the same, the software calculates and displays the
new trunnion axis tilt value.
New observation
C to measure and record angles.
A to scroll to
C to measure and record angles.
the number of observations in both faces appears:
Change face
. Then press C to change face.
7. P r e s s
A to scroll to one of the following:
–
Store correction
menu appears.
–
Cancel
. Then press C to return to the
. Then press C to accept the new trunnion axis tilt value. The
Adjustments
Adjustments
menu.
Trimble SPSx20 Total Station User Guide | 32
Page 33
3 Setup
HA: 0.0010
VA: 0.0012
Cancel
-Current values-
>>
Continue
C
-Adjustments-
Tracker collim.
HA/VA collimation
Compensator calib.
Laser pointer
Back...
>>
NOTE – The instrument will prohibit a trunnion axis tilt test if it is made towards a point with an angle
less than 15 grads (13.5 degrees) from the point where the collimation test was made. The trunnion axis
tilt determination accuracy will improve with a steeper angle towards the measured point. The minimum
distance for the trunnion axis tilt measurement is 30 m (66 ft.).
NOTE – If the trunnion axis tilt correction value is greater than 0.05 grads (0.045 degrees), the
message
is greater than 0.05 grads (0.045 degrees) and you answer No to the re measurement message, the
instrument uses the correction value previously stored in the instrument. If the value is greater than
0.05grads (0.045 degrees), then the instrument must be mechanically adjusted at the nearest
authorized Trimble service center.
Fail Re measure?
appears. Press Yes and then repeat the measurement procedure. If the value
Tracker Collimation
The instrument tracker unit is designed to be coaxial with the instrument cross hairs. For this reason a
tracker collimation check needs to be carried out on a regular basis (under the same conditions as the
HA/VA collimation check) to ensure that any slight misalignment is corrected for.
Perform the test over a similar distance as that you will be working on, but at least 100 m. The prism
target must be very still during the test (Trimble recommends that you use a tripod or bipod mount for
the target) and must be in clear line of sight without any obstructing traffic. The instrument is calibrated
to accurately point at the center of the target in both horizontal and vertical axes. The calibration is used
to correct the positions of all points measured using the Autolock
calibration values are stored and used until a new set of calibration values are determined.
NOTE – The adjustment between the two optical axes, i.e. the Telescope and the Tracker, may differ.
See Aiming on page 54
1. Press
A to scroll to
Tracker collim
then press C.
®
technology function. The measured
2. Accurately aim towards a prism.
3. Press
A to scroll to
New observation
and then press C.
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3 Setup
Aim at target
New observation
Change face
>>
HA: 0.0010
VA: 0.0012
Cancel
-Current values-
>>
Store correction
C
Set laser pointer
Set mode: Off
C
-Adjustments-
Tracker collim.
HA/VA collimation
Compensator calib.
Laser pointer
Back...
>>
Next
Set
>>
4. The instrument will measure to the target in both faces automatically and then display the current
values.
5. Press
6. Once the instrument has stored the correction values, the
A to scroll to one of the following:
–
Store correction
–
Cancel
. Then press C to return to the
. Then press C to save the correction values.
Adjustments
menu
Adjustments
menu appears.
Laser Pointer
The laser pointer is a visible laser that is emitted from the telescope along the line of sight. The laser is
used to visibly indicate the point being measured, and is especially useful when employing the DR
reflectorless EDM for measurement. The laser pointer is clearly visible in areas of shadow, inside
buildings and tunnels and also at night, however in bright sunshine it is generally not readily visible with
the human eye.
The following controls allow the laser pointer to be switched On and Off.
Note: The laser pointer is mechanically aligned to the telescope cross hairs. The laser may require
periodic adjustment to keep it perfectly aligned for measurement. In order to adjust the laser pointer it
has to be switched On, see page 3-37.
1. Press
A to scroll to
Laser pointer
then press C.
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3 Setup
C
Set laser pointer
Set mode: On
Next
Set
>>
Set laser pointer
Set mode: Off
Next
Set
>>
C
Set laser pointer
Set mode: Off
Next
Set
>>
-Adjustments-
Tracker collim.
HA/VA collimation
Compensator calib.
Laser pointer
Back...
>>
C
-Adjustments-
Tracker collim.
HA/VA collimation
Compensator calib.
Laser pointer
Back...
>>
- Setup -
>>
Reference HA
Radio settings
Adjustments
Exit (to level)
Firmware ve rsion
2. To change the laser pointer setting press A to select
3. When you have found the setting of your choice press A to select
this setting. You will then be returned to the
Adjustments
Next
and then press C to select On or
menu.
Set
and then press C to store
Off
4. If you want to cancel Press
Back
1. To return to the
A to select
menu.
With the laser pointer on, you can adjust the beam, For more information, see The Laser Pointer,
page 37.
Setup
menu, press A to scroll to
Cancel
and then press C to return to the
Back...
and then press C.
Trimble SPSx20 Total Station User Guide | 35
Adjustments
Page 36
Firmware Version Information
version: MX.X.X
C
- Setup -
>>
Reference HA
Radio settings
Adjustments
Exit (to level)
Fir mware versi on
Next service date
C
- Setup -
>>
Reference HA
Adjustments...
Firmware version
Service info
2008-10-17
or
in242 Hours
Radio settings
3 Setup
1. Press A to scroll to
appears on the screen. The program will return automatically to the
Firmware version
and then press C. The instrument firmware version
Setup
menu.
Service Info
In the
Service info
how many run time hours the instrument has left before service is recommended.
1. Press
A to scroll to
screen. The program will return automatically to the
menu it is possible to see the date for the next recommended service occasion or
Service info
and then press C. The instrument service info appears on the
Setup
menu.
Select Language
In
1. Press
2. Press
3. Press
Select language
A to scroll to
A to scroll through the available languages.
C to set language.
it is possible to select the language for the Face 2 display.
Select language
and then press C.
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Exit Menu
- Setup -
>>
Adjustments
Fir mware versi on
Select language
C
- Language Menu -
Language: ENG
cancel nextset
Service info
Reference HA
C
- Setup -
>>
Refarence HA
Adjustments
Exit (to level)
Firmware version
1:250
Setup
Exit
Readio settings
3 Setup
1. To exit the
appears.
NOTE – If the instrument is left idle for more than 300 seconds (5 minutes) during any of the above
routines, then the instrument goes to suspend mode.
Setup
menu press A to scroll to
Exit (to level)
and then press C. The electronic level
The Laser Pointer
The Trimble SPSx20 Total Station uses a red laser as a laser pointer. The laser pointer is coaxial with the
line of sight of the telescope. If the Trimble SPSx20 Total Station is well adjusted, the red laser pointer
coincides with the line of sight. External influences such as shock or large temperature fluctuations can
displace the red laser pointer relative to the line of sight.
Checking the Laser Pointer Alignment
CAUTION – Viewing the laser spot on the Laser adjustment plate through the telescope is safe.
C
Do not try to make the adjustment using a prism, the reflected light from a prism can daze your
eyes.
CAUTION – Do not use the laser pointer as an aid when searching for prisms, the reflected light
C
can daze your eyes. The reflected light will not damage your eyes, but might be uncomfortable.
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3 Setup
To avoid faulty measurements using the laser pointer, use the supplied Laser adjustment plate to check
the laser alignment regularly and before you attempt precise distance measurements:
1. Setup the Laser adjustment plate 25–50 meter away, facing the Trimble SPSx20 Total Station, see
Fig ure 3.13.
2. Activate the laser pointer function to switch on the red laser beam.
3. Aim the Trimble SPSx20 Total Station to the center of the Laser adjustment plate and then inspect
the position of the red laser spot in relation to the telescope cross-hairs.
4. If the red laser spot lies outside the cross-hairs, the Laser Pointer needs to be adjusted, See
Adjusting the Laser Pointer on page 38
Figure 3.13Laser adjustment plate
Adjusting the Laser Pointer
The following steps describes how to adjust the Laser Pointer.
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1. Pull out the two plugs from the adjustment ports on top of the telescope housing. Figu re 3.14
Vertical pointer
adjustment port
Horizontal pointer
adjustment port
3 Setup
Figure 3.14 Laser pointer adjustment ports
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3 Setup
Clockwise = Down
Counter Clockwise = Up
2. To correct the vertical position of the laser spot, insert the allen key into the vertical adjustment port
and turn it as shown in figure 3.15.
Figure 3.15 Vertical position adjustment
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3 Setup
Clockwise = Left
Counter Clockwise = Right
3. To correct the horizontal position of the laser spot, insert the allen key into the horizontal adjustment
port and turn it as shown in Figure 3. 16.
Figure 3.16 Horizontal position adjustment
4. Check the alignment of the laser spot and the cross-hairs. Throughout the adjustment procedure,
keep the telescope pointing to the adjustment target. The adjusting screws are of a high tension
because they are self locking. The screws tighten automatically after you adjust them.
5. Refit the plugs in the adjustment holes. Make sure that the plugs are correctly fitted for proper
sealing against the cover.
CAUTION – To keep out moisture and dust, make sure that the plugs are correctly fitted in the
C
adjustment ports.
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Measuring the Instrument Height
Top m ar k
Bottom mark
Top r id ge of
bottom mark
There are two measurement marks on the side of the Trimble SPSx20 Total Station. The top mark
corresponds to the trunnion axis of the Trimble SPSx20 Total Station. The bottom mark is 0.158 m
(0.518 ft.) below the top mark. Measure the bottom mark to the top ridge of the mark as shown in
Fig ure 3.17
3 Setup
Figure 3.17Instrument height marks
When there is a TSC3 attached running a field application software, the software has additional
functions that reduce the bottom mark measurement to the required vertical instrument height to the
trunnion axis, see Figure 3.18 and the following paragraph.
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3 Setup
0.158m
HmHcIh
(0.518ft)
Ih0 158Hm20 091
2
–+=
Figure 3.18 Instrument height measurement
The measured distance (Hm) is corrected for the slope of the measurement to obtain a vertical
measurement to the bottom mark (Hc). The constant from the bottom mark to the top mark
(0.158 m/0.518 ft.) is added to the Hc to obtain the vertical instrument height from the ground mark to
the trunnion axis (Ih). For more information, refer to the field software documentation.
Alternatively, to obtain an accurate measurement to the top mark (Ih), you can manually measure the
slope distance from the ground to the bottom mark (Hm). To calculate the total instrument height (Ih),
insert the measured slope distance (Hm) into the formula below:
Adjusting the Optical Plummet
1. Set up the instrument and level it over a ground mark so that the tripod height is 1.5 m (±0.1 m)
(4.920 ft. (±0.328 ft.)) as shown in Figure 3.18
2. Note the position of the inner circle of the optical plummet in relation to the ground mark.
3. Turn the instrument 200 grads (180 degrees).
4. Note the position of the inner circle of the optical plummet in relation to the ground mark. If the inner
circle of the optical plummet reticule moves in relation to the ground mark, you must adjust the
plummet reticule location.
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5. Adjust out half of the error with the four adjustments screws on the optical plummet.
Optical plummet
Ground mark
reticule 4x Adjustment screws
6. Turn the instrument 200 grads (180 degrees).
7. If there is no movement between the inner circle of the optical plummet reticle in relation to the
ground mark, no further adjustment is needed.
CAUTION – When adjusting the optical plummet with the four adjustment screws it is important
C
that the screws are correctly adjusted. When one screw is adjusted the opposite screw must be
adjusted equally in the reverse direction, in order to keep the correct tension on the optics. Do not
overtighten the screws, this might damage the optics.
3 Setup
Figure 3.19 Optical plummet adjustment
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3 Setup
COM
RS232 Com
TSC3
Connector
Connector
Connecting the TSC3 Controller
The TSC3 is used as a controller for the Trimble SPSx20 Total Station.
Connecting With Cable
The TSC3 is connected from the Trimble SPSx20 Total Station Communication (COM) connector to the
TSC3 RS232 connector using cable part number 53002021.
Figure 3.20 TSC3 connected to the Trimble SPSx20 Total Station with cable for servo and Autolock
measurements.
Connecting in Robotic Mode
The TSC3 is connected directly to the Trimble SPSx20 Total Station via the integrated radio.
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3 Setup
TSC3
Figure 3.21 TSC3 connected to the SPSx20 Total Station using the integrated radio for robotic measurements
Pre Measurement Check List
Before you begin measurement or stake out operations, check the following items:
• Lenses are clean
• Trimble SPSx20 Total Station is correctly leveled
• Collimation error
• Tracker collimation error
• Trunnion axis tilt
• Correct radio channel and network ID are selected (robotic measurements only)
• Laser Pointer beam alignment
• Measure instrument height
• Allow sufficient time for the Trimble SPSx20 Total Station to adjust to the ambient temperature, see
page 20
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4
4
Trimble SPSx20 Total Station
Te c h n o l o g y
► Angle Measurement Technology
► Distance Measurement Technology
► Tr ac k e r Tec hn o l o g y
► Radio
► Tr a c k l i g h t
► Servo Technology
► Power Management
► Power Supply
► External Communication
► Removable Handle
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4 Trimble SPSx20 Total Station Technology
Angle Measurement Technology
The principles of angle measurement are based on reading an integrated signal over two opposite areas
of the angle sensor and producing a mean angular value. This eliminates inaccuracies caused by
eccentricity and graduation.
In addition, the angle measurement system compensates for the following automatic corrections:
• Mislevelment (deviation of the plumb axis).
• Horizontal and vertical collimation error.
• Trunnion axis tilt. See page 49
Correction for Mislevelment
The Trimble SPSx20 Total Station automatically corrects for mislevelments up to ±6 ’. The Trimble
SPSx20 Total Station warns the operator immediately of any mislevelments in excess of ±6 ’(±0.11
grads).
Corrections for the horizontal angle, vertical angle, and slope distance are calculated in the field
application software and applied to all measurements.
Correction for Collimation Errors
The horizontal collimation error is the deviation of the sighting axis from its required position at right
angles to trunnion axis.
The vertical collimation error is the difference between the vertical circle zero and the plumb axis of the
Trimble SPSx20 Total Station.
Traditionally, collimation errors were eliminated by observing angles in both faces. In the Trimble
SPSx20 Total Station, a pre-measurement collimation test is performed to determine the collimation
errors. Angular measurements are observed in both faces, the collimation errors are calculated, and the
respective correction values are stored in the Trimble SPSx20 Total Station. The collimation correction
values are then applied to all subsequent angle measurements. Angles observed in a single face are
corrected for collimation errors, which eliminates the need to measure in both faces.
Carry out a collimation test in the following situations:
• Whenever the Trimble SPSx20 Total Station may have been roughly handled during transport.
• When the ambient temperature differs by more than 10°C (18°F) from the previous collimation test.
• Immediately prior to high precision angle measurements in one face.
Trimble SPSx20 Total Station Tracker Collimation
A Trimble SPSx20 Total Station can automatically lock and track a prism target. Pointing errors caused
by slight misalignment of the Trimble SPSx20 Total Stations tracker have a similar effect to the HA and
VA Collimation errors detailed above.
To correct for the tracker collimation errors, carry out a tracker collimation test. The tracker collimation
test automatically observes angular measurements to a target in both faces, the tracker collimation
errors are calculated and the respective correction values are stored in the Trimble SPSx20 Total
Station. The tracker collimation correction values are then applied to all subsequent angle
measurements observed. Angles observed in a single face are corrected for collimation errors, which
removes the need to measure in both faces.
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4 Trimble SPSx20 Total Station Technology
Trunnion axis
tilt error
Carry out a tracker collimation test in the following situations:
• Whenever the Trimble SPSx20 Total Station may have been roughly handled during transport.
• When the ambient temperature differs by more than 10°C (18°F) from the previous collimation test.
• Immediately prior to high precision angle measurements using the tracker in a single face.
Correction for Trunnion Axis Tilt
The trunnion axis tilt error is the deviation of the trunnion axis of the telescope from its required position
at right angles to the plumb axis of the Trimble SPSx20 Total Station. SeeFigure 4.2 2
Figure 4.22 Trunnion axis tilt error
In the Trimble SPSx20 Total Station, perform a pre-measurement trunnion axis tilt test to determine the
trunnion axis tilt error. Angular measurements are observed in both faces, the trunnion axis tilt error is
calculated, and the respective correction value is stored in the Trimble SPSx20 Total Station. The
trunnion axis tilt correction value is then applied as a correction to the horizontal angle value.
Carry out a trunnion axis tilt test in the following situations:
• Whenever the Trimble SPSx20 Total Station may have been roughly handled during transport.
• When the ambient temperature differs by more than 10°C (18°F) from the previous collimation test.
• Immediately prior to high precision angle measurements in one face, especially where the vertical
angles significantly deviate from the horizontal plane.
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4 Trimble SPSx20 Total Station Technology
Averaging Measurements to Reduce Sighting Errors
The Trimble SPSx20 Total Station automatically reduces sighting errors caused by the misalignment of
the Trimble SPSx20 Total Station to the target or by pole movement during measurement. The following
techniques can be used:
• Use Autolock. When Autolock is enabled, the Trimble SPSx20 Total Station automatically locks onto
and tracks the target. Manual sighting errors are reduced.
• Automatically average angles during distance measurement. When measuring in Standard mode,
the Trimble SPSx20 Total Station takes approximately 1.2seconds to measure the distance. Angles
returned to the Trimble SPSx20 Total Station at 1000 Hz, are averaged over the 1.2-second period to
obtain an averaged angle measurement. The resultant angle measurement is an average of over
1200 observations.
• Use average measurement methods in the field software.
Distance Measurement Technology
Trimble SPSx20 Total Station are equipped with a combined distance unit. This means that the Trimble
SPSx20 Total Station can measure to a prism or to normal surfaces (direct reflex (DR) mode). The
following sections describes the system.
DR PLUS EDM
The Trimble SSPSx20Total Station EDM is a pulsed laser distance unit that determines distances by
precisely measuring the flight time of the transmitted light pulse. The distance unit generates many
short laser pulses, which are transmitted through the telescope to the target. The pulses reflect off the
target surface and return to the instrument where the unit determines the time difference between the
transmitted pulses and the received pulses. The unit uses the time difference to calculate the distance
to the target.
The distance unit includes additional functions that allow you to control the accuracy and precision of a
DR measurement through the field application software.
field application software includes:
• Standard Deviation. This allows you to configure the required precision of the DR measurement
before the distance will be accepted. The distance measurement process will be carried out by the
instrument until the preset standard deviation value has been achieved. The default standard
deviation value is 0.003m. Setting this value to a higher number gives shorter measurement time but
is less accurate, especially when measuring to surfaces at greater distances or at oblique angles to
the line of sight.
• Weak Signal. This allows you to accept a DR measurement that is below the normal instrument
specification. This is useful when measuring to poor reflective surfaces, or when trying to achieve the
maximum range of the instrument.
• Min.-Max Range. This allows you to specify the DR measurement interval. For example, when you
measure to a small object at 50 m with a background object at 200 m, set the min.-max range from
2 m to 100 m. The distance meter is then tuned to provide a distance within the specified range and
to ignore any signal from outside the defined range. By default, the min.-max range is 2–300 m.
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4 Trimble SPSx20 Total Station Technology
Beam Divergence
All distance meter measurement beams diverge as the range from the instrument increases. The
divergence of the distance meter beam relates to an increase in the size of the area being sampled, not
to a degradation of the measurement precision. See Figure 4.23
Figure 4.23 Beam divergence.
A larger measuring area at longer range is generally better because it enables smaller objects, such as
power lines and antennas, to be detected and accurately measured. With a smaller measuring area,
these small objects can be easily missed. A smaller measuring area has advantages when measuring
tight corners and vertices at close range. When observing measurements to a tight corner, the distance
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4 Trimble SPSx20 Total Station Technology
Required
distance
Measured
distance
Required
distance
Measured
distance
meter beam divergence introduces a range error caused by the size of the sampling area. See
Fig ure 4 .24
Figure 4.24 Measuring to an inner and an outer corner
Although the problem is reduced with a beam that uses a smaller measuring area, the error can not be
completely eliminated. The most accurate solution to measure to tight corners and eliminates errors
caused by beam divergence, is to use an offset measurement method such as that used in the field
application software:
1. Measure two points on the face of the building.
2. Aim the Trimble SPSx20 Total Station at the corner to store the correct horizontal and vertical angle.
See Figu re 4. 25
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4 Trimble SPSx20 Total Station Technology
Point 1Point 2Point 3
Figure 4.25 Offset measurement
With offset measurements, you can accurately measure difficult locations with DR instruments, and
eliminate beam divergence errors. For more information, refer to the field application software
documentation.
Tra c ke r Te c hn o lo g y
The Trimble SPSx20 Total Station is equipped with Tracker technology.
Tracker technology controls the Trimble SPSx20 Total Station servos and aims the Trimble SPSx20 Total
Station correctly towards the target. See Figu re 4. 26
TIP – To assure maximum performance from the Tracker technology keep the lens clean and dry.
B
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4 Trimble SPSx20 Total Station Technology
Manual aimingTracker aiming
Figure 4.26 The Trimble SPSx20 Total Station Tracker function.
Aiming
The adjustment between the two optical axes, the telescope and the tracker, may differ. The difference
will make it seem like the Trimble SPSx20 Total Station does not point towards the center of the prism,
when using tracker, figure 4.27. This is not a problem since the two axis have their own separate
collimation data. It is however important to make collimation test for both axes.
Figure 4.27 Difference between manual and tracker aiming.
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4 Trimble SPSx20 Total Station Technology
How to Check Aiming
You can check how well the Trimble SPSx20 Total Station is calibrated by measuring toward the prism
with and without tracker and compare the measured angles:
1. Aim manually at a prism and read out the horizontal and vertical angles.
2. Turn on tracker and let the Trimble SPSx20 Total Station lock on to the same prism automatically,
read out the horizontal and vertical angles.
3. Compare the angles between manual and tracker aiming.
If the difference between the read out angles is significant, you should carry out both a horizontal and
vertical angle collimation adjustment, and a tracker collimation adjustment.
After a full tracker collimation, the pointing of the instrument can still be different between manual and
tracker assisted pointing. The angles to the target in both cases will however be the same - the
collimation errors stored for the tracker will effectively make the instruments tracker pointing match the
pointing when done with the human eye.
Radio
Internal Radio
The Trimble SPSx20 Total Station has an internal radio to support robotic operations.
The internal radio is a 10 mW radio that operates in the public free 2.4 GHz band. The radio uses
frequency hopping technology to reduce radio interference and maintain radio communications in even
the harshest RF environment.
To maintain radio communication with the Trimble SPSx20 Total Station, the Controller at the pole must
also be connected to a 2.4 GHz external radio. The TSC3 is equipped with an integrated 2.4 GHz radio
module.
Tracklight
Tr a c k l i g h t® unit is a visible guide light that enables the rod holder to position themselves into the Trimble
SPSx20 Total Stations current line of sight. The Tracklight can be used during stakeout in all operational
modes, and is also of great benefit when operating in robotic mode as a means of checking that the
Trimble SPSx20 Total Station is tracking, or when trying to reacquire lock by walking into the sight line of
the tracker, or using the remote joystick control in robotic mode. Tracklight consists of a flashing twocolored light, with each color lying in its own lateral projection sector. If the rod holder is to the left of the
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4 Trimble SPSx20 Total Station Technology
Red lightGreen light
measuring beam, they will see a red flashing light; if they are to the right, they will see a green flashing
light. See Fig ure 4 .28
Figure 4.28 Tracklight
TIP – You can use the Tracklight for clearing sight lines and as an aid to find prisms in the dark or
unfavorable sighting conditions.
CAUTION – Do not use the laser pointer as an aid when searching for prisms, the reflected light
C
can dazzle your eyes. The reflected light will not damage your eyes, but might be uncomfortable.
Servo Technology
The Trimble SPSx20 Total Station is equipped with servo controlled motors to position the Trimble
SPSx20 Total Station and to focus the telescope.
Due to the high speed position servo used in the Trimble SPSx20 Total Station it is important to use a
high quality tripod and tribrach. It is also important to set up the tripod in a position for best stability, see
figure Figure 4.29. If the setup, tripod and/or tribrach is/are unstable the Trimble SPSx20 Total Station
servos might oscillate slightly in an effort to compensate for that instability. An unstable setup that
could negatively influence the resulting measurement precision. See Setup on page 19
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4 Trimble SPSx20 Total Station Technology
Stable setupUnstable setup
Figure 4.29 Tripod setup
Position Servo
Trimble MagDrive™ servo technology is an electromagnetic direct drive servo system which gives high
turning speeds and accuracy. The frictionless motion removes servo noise and reduces instrument
wear. The system provides endless horizontal and vertical motion, including endless fine adjustment.
The Trimble SPSx20 Total Station uses servo when performing a number of different operations such as
turning the horizontal and vertical motion knobs, for automatic test and calibration, or when using
Autolock technology for robotic surveying. See Fi gure 4.3 0
NOTE – Due to the high speed servo it is important to use a high quality tripod and tribrach.
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4 Trimble SPSx20 Total Station Technology
Up
Right
Left
Vertical motion knob
Horizontal motion knob
Down
Figure 4.30 Position servo
Focus Servo
The Trimble SPSx20 Total Station is equipped with a focus servo. The focus motion knob is on the side
of the Trimble SPSx20 Total Station for easy access.
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4 Trimble SPSx20 Total Station Technology
Focus motion knob
The focus knob is connected to a servo motor that is built into the telescope. When you turn the focus
motion knob, the servo motor adjusts the focusing lens. See Figure 4.3 1
Figure 4.31 Focus servo
Power Management
The power management in the Trimble SPSx20 Total Station can set the instrument to one of three
different modes.
• Off mode
•On mode
• Suspend mode
Trimble SPSx20 Total Station
Off Mode
In the off mode the Trigger key LED is off.
Press the Trigger key to turn on the Trimble SPSx20 Total Station. The Trimble SPSx20 Total Station will
also turn on if you connect a 12 V power supply to the 12 V power connector and a TSC3 (or PC) to the
communication (COM) connector.
NOTE – During startup the Trigger key LED will flash once every second.
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4 Trimble SPSx20 Total Station Technology
On Mode
In the on mode the Trigger key LED will be on solid.
To turn off the Trimble SPSx20 Total Station press and hold the Trigger key until the LED is off.
The Trimble SPSx20 Total Station will go to off mode if the battery is very low (battery capacity less than
2%).
Suspend Mode
In the suspend mode the Trigger key LED will flash once every other second,
To t ur n t h e Tr im b le S P Sx 2 0 To ta l S ta t io n o n pr e ss t h e Tr i g ge r k e y or t u rn on t he Tr im b le S P S x2 0 Tot al
Station from a remote application.
To turn the Trimble SPSx20 Total Station off press and hold the Trigger key until the LED is off.
In Suspend mode the Trimble SPSx20 Total Station will turn off automatically after 2 hours.
Power Supply
The power management in the Trimble SPSx20 Total Station has been designed to deliver the most
operating time in the field. The power management system includes the internal battery, optional
external battery pack and the Trimble battery charger.
Internal Power Supply
The primary power supply for the Trimble SPSx20 Total Station is a rechargable, removable Lithium-ion
battery. The supplied battery is designed for use in the Trimble SPSx20 Total Station and features:
• Battery gauge to easily check power supply
• Rugged design
• One battery type for Trimble SPSx20 Total Station and accessories.
The Trimble SPSx20 Total Station battery is on the side of the Trimble SPSx20 Total Station and is easily
removed and replaced. See Figu re 4. 32
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Figure 4.32 Removing and replacing the internal battery
Press
Open
Power gauge
Button
4 Trimble SPSx20 Total Station Technology
To check the power supply in the Trimble SPSx20 Total Station battery using the built in battery gauge,
press the button on the side of the battery. See Figu re 4.33
Figure 4.33 Internal battery power gauge and button
When you press the button, four LEDs on the Trimble SPSx20 Total Station battery show the power
level. Each LED corresponds to a power level of 25% so that when the power level is at 100%, all four
LEDs are lit. If the battery is completely discharged, all LEDs are unlit.
When the button is pushed and all the LEDs flash, the battery needs to be reconditioned in the battery
charger.
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4 Trimble SPSx20 Total Station Technology
When the battery capacity is between 0 and 10% one LED is flashing. A battery with a flashing LED
might not be able to start a Trimble SPSx20 Total Station. If started, with a battery with a flashing LED,
the operating time will be between 5 and 15 minutes.
The capacity of the battery is 4.4 Ah.
External Power Supply
The Trimble SPSx20 Total Station has two external connectors in the base of the Trimble SPSx20 Total
Station; one for communication and one for an external power supply. External power can be provided
by one of the following:
• Multi Battery Adapter
•Car battery
With the Trimble SPSx20 Total Station Multi Battery Adapter, you can connect up to three Trimble
SPSx20 Total Station batteries. Connect the Multi Battery Adapter to the external power connector on
the Trimble SPSx20 Total Station using a grey Trimble cable with 6-pin Hirose connector. The Trimble
SPSx20 Total Station Multi Battery Adapter can be attached to a tripod or placed on the ground, and
has a carrying handle.
As an alternative to the Multi Battery Adapter, An external 12 V car battery can be used. Use one of the
following cables:
• The Cable - 3.0m, Car battery (croc clips) to Hirose 6 pin.
• The Cable - 3.0m, Cigarette lighter to Hirose 6 pin
CAUTION – Use only the gray cables with 6-pin Hirose connectors from Trimble when connecting
C
a cable to the Trimble SPSx20 Total Station and Multi Battery Adapter.
Charging the Battery
See Trimble charger user guide for information.
Battery Low Message
If the battery capacity drops too low the Trimble SPSx20 Total Station shuts down. You must then
change the battery within two hours to prevent losing instrument parameters and functions such as
instrument height, target height, coordinates, bearing, and dual axis compensation. After that time, the
system resets all parameters and functions to default values.
NOTE – This safety backup of the instrument parameters and functions will work only when
appears on the display: it will not function if you remove the battery during operation.
Bat low
External Communication
Communication (COM) Connector
The communication (COM) connector on the base of the Trimble SPSx20 Total Station can be used for:
• Communication to a desktop computer.
• Communication between a controller and the Trimble SPSx20 Total Station.
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4 Trimble SPSx20 Total Station Technology
Torx T3 0 x 2
• Installing firmware upgrades to the Trimble SPSx20 Total Station.
CAUTION – Use only the gray cables with 6-pin Hirose connectors from Trimble when connecting
C
a cable to the instrument.
Removable Handle
The handle of the Trimble SPSx20 Total Station is removable for measurements in confined spaces, or
for instances where the handle obstructs the sighting line.
The Trimble SPSx20 Total Station handle is placed so that it will not obscure measurements in the face 1
position, or restrict plumbing vertically beneath an overhead marker or sighting up a vertical shaft.
The handle can be removed by:
1. Unscrew the two Torx screws securing the handle to the Trimble SPSx20 Total Station, use a T30
To r x k ey.
2. Slide the handle horizontally away from the front of the Trimble SPSx20 Total Station. See
Fig ure 4 .34 and Figure 4.3 5
Figure 4.34 Removing the Trimble SPSx20 Total Station handle
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4 Trimble SPSx20 Total Station Technology
Figure 4.35 Detaching the Trimble SPSx20 Total Station handle
Attaching the handle:
Attaching the handle is completed by reversing the above operations.
CAUTION – Make sure that the handle is firmly attached before you lift the Trimble SPSx20 Total
C
Station.
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5
Options & Accessories
►Trimble Standard Rod
►Trimble Target ID
►Trimble MT1000 MultiTrack Target
►Backsight Target
5
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5 Options & Accessories
Trimble Standard Rod
The Trimble standard rod is available with the Trimble SPSx20 Total Station. The rod contains the
following features:
• Graduated scale in meters and feet.
• Fixed target height positions
• Leveling bubble
Figure 5.36 Trimble Standard Rod
Trimble Target ID
The target ID is an optional unit that connects to the Trimble stake writer rod to transform the prism
from a passive target to an active target. See Figure 5.37
Figure 5.37 Trimble Target ID
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5 Options & Accessories
ID number
Selection button
On / Mode button
Display
On for 60 seconds
On continuously
Battery low
Battery lid
You can configure the target ID to eight different IDs, which are then used by the Trimble SPSx20 Total
Station to ensure that the instrument locks onto and (optionally) tracks only the target with the correct
Target ID. Configure the Target ID through its own LED display. See Figure 5.3 8
Figure 5.38 Target ID controls
Press the power button one or more times to access the following modes:
• On for 60 seconds
• On continuously
•Off
A bar appears beside the active mode.
When the Target ID is on, the current target ID appears. Press the ID number selection button to change
the current target ID number.
The Target ID is powered by two AA size batteries that will operate the unit for approximately 12 hours
continuous use. A dot appears beside the battery symbol when battery power is low.
Fitting and Removing the Target ID
1. Screw the adapter and mini rod on to the top of the rod and tighten.
2. Push the Target ID on to the mini rod until it locks in place. The spring lock will hold the Target ID in
place.
Removing the Target ID is the reverse operation to fitting.
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5 Options & Accessories
Mini rod
Adapter
Spring lock
LED Aperture
Figure 5.39 Fitting or removing the Target ID.
LED Information
The Target ID has been tested and complies with the regulations for a Class 1 LED product. See
Fig ure 5 .40. .
Figure 5.40 Target ID LED Aperture
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5 Options & Accessories
Battery lid
Battery lid
securing screw
2x AA Size batteries
Changing the Batteries in the Target ID
1. Turn the screw securing the battery lid a quarter of a turn counter-clockwise and then remove the
battery lid.
2. Hold the target ID at an angle and let the two used batteries slide out.
3. Insert two new AA size batteries.
4. Fit the battery lid and then secure it by turning the screw a quarter of a turn clockwise. See
Fig ure 5 .41
Figure 5.41 Target ID battery change
Trimble MT1000 MultiTrack Target
The Trimble MultiTrack™ target provides fully coaxial passive and active tracking via an integrated 360°
prism ring and 2 active 360° LED rings. The active LED rings support the selection of a unique ID to
ensure that 8 different targets can be operated on a single site with full confidence that the correct
target is always used.
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Fea tu res
5 Options & Accessories
Figure 5.42 Trimble MT1000 MultiTrack Target Features
1Battery compartment5On/Off and battery low indicator LED
To fit the battery, push the battery in to the battery compartment (1) with the battery connectors (2)
facing upwards and inwards until the battery locks clicks (3) in place.
To remove the battery, slide the battery locks open (4), The battery can now slide out of the battery
compartment (5).
The battery is a Trimble 7.4 V Li-Ion battery.
The Trimble MultiTrack Target will provide active tracking for up to 8 hours from one fully charged
battery. When the on/off and battery low indicator LED starts to flash the battery will have
approximately 40 minutes operation time remaining.
Figure 5.44 Fitting and Removing the Battery
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5 Options & Accessories
Specification Label
To read the specification label unscrew the top cap of the target (1).
NOTE – The accuracy specification for Active mode is valid within 15° from horizontal. For vertical
angles outside of this range it is recommended to use passive mode or to use a tiltable target to ensure
the most precise results.
Figure 5.46 Contents of the traverse kit 2 accessory case
ItemDescription
1Tribrach
2Accessory case keys (2x)
3Prism base with level and optical plumb
4Prism
5Sighting target
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5 Options & Accessories
Targe t ( si gn al )
Height
Top ri dge of
height
height
measurement
mark
measurement
mark
Measuring the Target Height
There is a height measurement mark on the side of the prism base that can be turned out for easier
reading of the height. The height measurement mark is 0.158 m (0.518 ft.) below the target (signal)
height. Measure to the top ridge of the mark. See Figure 5.47
Figure 5.47 Target height marks
When there is a controller attached running a field application software, the software has additional
functions that reduce the bottom mark measurement to the required vertical target (signal) height. See
Fig ure 5 .48 and the following paragraph.
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5 Options & Accessories
0.15 8m
HmHcTh
(0.518ft)
or
Th0 158Hm20 091
2
–+=
Figure 5.48 Target height measurement
The measured distance (Hm) is corrected for the slope of the measurement to obtain a vertical
measurement to the bottom mark (Hc). The constant from the target height measurement mark to the
target (signal) height (0.158 m/0.518 ft.) is added to the Hc to obtain the vertical target height from the
ground mark to the target (signal) height (Th). For more information, refer to the field software
documentation.
Alternatively, to obtain an accurate measurements to the target (signal) height (Th), you can manually
measure the slope distance from the ground to the bottom mark (Hm). To calculate the total target
height (Th), insert the measured slope distance (Hm) into the formula below:
Attaching the Accessory Case to the Trimble SPSx20 Total Station Case
The accessory case can be fitted on top of the Trimble SPSx20 Total Station case for transport to a job
site. Use straps (not included) as shown in Figu re 5.4 9.
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5 Options & Accessories
Straps to secure
the accessory case
to the Trimble SPSx20 Total Station
case
Figure 5.49 Accessory case fitted to the top of the Trimble SPSx20 Total Station case
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6
Care and Maintenance
► Care and Maintenance
► Transporting the Trimble SPSx20 Total Station
► Servicing
6
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6 Care and Maintenance
Care and Maintenance
WARNING – Do not remove the cover from the Trimble SPSx20 Total Station. A Trimble SPSx20
C
Total Station is designed to withstand normal electromagnetic disturbance from the environment
but it contains circuits that are sensitive to static electricity. If an unauthorized person opens the
cover of the Trimble SPSx20 Total Station, the function of the Trimble SPSx20 Total Station is not
guaranteed and the warranty is invalidated.
The Trimble SPSx20 Total Station is designed and tested to withstand field conditions, but like all
precision instruments, it requires care and maintenance. Take the following steps to get the best results
from the Trimble SPSx20 Total Station:
• Do not subject the equipment to rough jolts or careless treatment.
• Keep the lenses and reflectors clean. Use only lens paper or other material that is designed for
cleaning optical equipment.
• Keep the Trimble SPSx20 Total Station protected and in an upright position, preferably in the Trimble
SPSx20 Total Station case.
• Do not carry the Trimble SPSx20 Total Station while mounted on a tripod. Doing so can damage the
tribrach screws.
• Do not carry the Trimble SPSx20 Total Station by the telescope barrel. Use the handle.
• When you need extremely precise measurements, make sure that the Trimble SPSx20 Total Station
has adapted to the surrounding temperature. Significant variations in temperature can affect
precision.
Cleaning
CAUTION – Never use strong detergents such as benzine or thinners on the Trimble SPSx20
C
Total Station or the Trimble SPSx20 Total Station case.
Be very careful when cleaning the Trimble SPSx20 Total Station, especially when removing sand or dust
from lenses and reflectors. Never use coarse or dirty cloth or hard paper. Trimble recommends that you
use anti-static lens paper, a cotton wad, or a lens brush.
Getting Rid of Moisture
If the Trimble SPSx20 Total Station has been used in damp weather, take the Trimble SPSx20 Total
Station indoors and remove the Trimble SPSx20 Total Station from the Trimble SPSx20 Total Station
case. Leave the Trimble SPSx20 Total Station to dry naturally. If condensation forms on the lenses, allow
the moisture to evaporate naturally. Leave the carrying case open until all moisture has evaporated.
Transporting the Trimble SPSx20 Total Station
Always transport the Trimble SPSx20 Total Station in a Trimble SPSx20 Total Station case. For longer
trips, transport the Trimble SPSx20 Total Station in the Trimble SPSx20 Total Station case and inside
the original shipping container.
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6 Care and Maintenance
Servicing
NOTE – There are no user-serviceable parts on the Trimble SPSx20 Total Station.
Trimble recommends that you take the Trimble SPSx20 Total Station to an authorized Trimble service
workshop for service and calibration once a year. This is to guarantee that the specified accuracies are
maintained.
When you send the Trimble SPSx20 Total Station to a service center, clearly write the name of the
sender and the receiver on the Trimble SPSx20 Total Station case. If repairs are required, enclose a note
in the Trimble SPSx20 Total Station case. The note should clearly describe any fault or symptoms, and
indicate that servicing is required.
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