Intelleigent Total Station SET3C - glm

CONTENTS
1. PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 . PARTS OF THE INSTRUMENT . . . . . . . . . . . . . . . . . . . 2
3. FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
.
5 . BATTERY BDC18: MOUNTING AND CHECK . . . . . . . 10
6 . SETTING UP THE INSTRUMENT . . . . . . . . . . . . . . . . . 12
4 KEY FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.1 CENTRING THE SET3C BY ADJUSTING
TRIPOD LEG LENGTH . . . . . . . . . . . . . . . . . . . . . . 12
6.2 FOCUSSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7. INDEXING THE VERTICAL AND HORIZONTAL
.
CIRCLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8 . ANGLE MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . 16
8.1 SELECTION OF HORIZONTAL ANGLE
DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
8.2 SETTING THE HORIZONTAL ANGLE TO
ZERO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
8.3 SET THE HORIZONTAL ANGLE TO A
REQUIRED VALUE . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.4 TILT ANGLE DISPLAY AND T I L T
COMPENSATION OF MEASURED ANGLES . . . . . 17
8.5 DISPLAY AND RETICLE ILLUMINATION . . . . . . 18
.
9 PREPARATION FOR DISTANCE
MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
9.1 ENTRY OF PRISM CONSTANT VALUE . . . . . . . . 19
9.2 ATMOSPHERIC CORRECTION . . . . . . . . . . . . . . . . 20
9.3 SELECTION OF THE MEASUREMENT MODE . . . 22
9.4 EARTH-CURVATURE AND REFRACTION
CORRECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.5 PRISM SIGHTING FOR ANGLE AND
DISTANCE MEASUREMENT . . . . . . . . . . . . . . . . . 24
10. DISTANCE MEASUREMENT . . . . . . . . . . . . . . . . . . . . . 25
.
11 PREPARATION FOR COORDINATE
MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.1 INPUT OF INSTRUMENT AND TARGET
HEIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.2 INPUT OF INSTRUMENT STATION
COORDI NATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
11.3 INPUT OF BACKSIGHT STATION
COORDINATES . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
11.4 SETTING THE AZIMUTH ANGLE FROM
THE INSTRUMENT AND BACKSIGHT
STATION COORDINATES . . . . . . . . . . . . . . . . . . . 30
12. COORDINATE MEASUREMENT . . . . . . . . . . . . . . . . . . 31
12.1 3-DIMENSIONAL COORDINATE
MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . .31
12.2 TRAVERSE-STY LE COORDINATE
MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
13. REMOTE ELEVATION MEASUREMENT . . . . . . . . . . . 34
14. MISSING LINE MEASUREMENT . . . . . . . . . . . . . . . . . 36
15. SETTING OUT MEASUREMENT . . . . . . . . . . . . . . . . . 38
15.1 HORIZONTAL ANGLE SETTING OUT
MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
15.2 DISTANCE SETTING OUT MEASUREMENT . . . . 39
15.3 COORDINATES SETTING OUT
MEASUREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
16. INSTRUMENT PARAMETER SETTINGS . . . . . . . . . . . 44
16.1 ENTRY TO PARAMETER SETTING MODE . . . . . 44
16.2 SUMMARY OF PARAMETER OPTIONS . . . . . . . . 45
16.3 CHANGING INSTRUMENT PARAMETER
OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
17. MEMORY CARD OPERATIONS . . . . . . . . . . . . . . . . . . 51
17.1 STORING DATA ON THE MEMORY CARD . . . . . 51
17.2 DATA RECORDING ON THE MEMORY CARD . . 53
17.3 REVIEWING DATA STORED ON THE
MEMORY CARD . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
17.4 RECALLING COORDINATE DATA STORED
ON THE MEMORY CARD . . . . . . . . . . . . . . . . . . . 63
17.5 MEMORY CARD DATA PROTECTION . . . . . . . . . 64
18. CHECKS AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . 65
18.1 ANGLE MEASURING FUNCTION . . . . . . . . . . . . . 65
18.1.1 Plate level . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
18.1.2 Circular level . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
18.1.3 Reticle adjustments . . . . . . . . . . . . . . . . . . . . . .67
18.1.4 Coincidence of the distance measuring axis
with the reticle . . . . . . . . . . . . . . . . . . . . . . . . . 71
18.1.5 Optical plummet . . . . . . . . . . . . . . . . . . . . . . . . 72
18.2 DISTANCE MEASURING FUNCTION . . . . . . . . . . 73
18.2.1 Check flow chart . . . . . . . . . . . . . . . . . . . . . . . .73
18.2.2 Additive distance constant . . . . . . . . . . . . . . . . 75
19. FOR ANGLE MEASUREMENT OF THE
HIGHEST ACCURACY . . . . . . . . . . . . . . . . . . . . . . . . . . 77
19.1 LEVELLING BY REFERRING TO THE
DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
19.2 MANUALLY INDEXING VERTICAL Cl RCLE
BY FACE LEFT. FACE RIGHT READINGS . . . . . 79
20 . FOR DISTANCE MEASUREMENT OF THE
HIGHEST ACCURACY . . . . . . . . . . . . . . . . . . . . . . . . . . 81
20.1 ACCURACY OF MEASUREMENT OF
ATMOSPHERIC CONDITIONS . . . . . . . . . . . . . . . . 81
20.2 TO OBTAIN THE ATMOSPHERIC PRESSURE . . . 81
21. POWER SUPPLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
22. REFLECTING PRISMS A N D ACCESSORIES . . . . . . . . 85
23. STANDARD EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . 87
24 . OPTIONAL ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . 88
24.1 MEMORY CARD READER SCRl . . . . . . . . . . . . . 88
24.2 INTERFACE CABLES DOCI,
DOC25lDOC26lDOC27 . . . . . . . . . . . . . . . . . . . . . . 88
24.3 ELECTRONIC FIELD BOOK SDR SERIES . . . . . . 89
24.4 INTERFACE l F l A FOR THE HP-41CV . . . . . . . . . 89
24.5 DIAGONAL EYEPIECE DE18.. . . . . . . . . . . . . . . . 90
24.6 SOLAR FILTER O F I f O F l A . . . . . . . . . . . . . . . . . . 90
25. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
26. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
IMPORTANT NOTE:
This operator's manual applies o n l y t o S E T 3 6 instruments with
a n instrument serial n u m b e r greater t h a n 106729.
Before using this manual, please check t h e instrument serial
number.
.
I
I
I
I--r
/
locking screw
IMPORTANT
When the new SET3C is shipped, the tribrach clamp i s fixed
with a screw. Loosen it and leave it loose.
1
/
l
1. PRECAUTIONS
1) When the SET3C is not used for a long time, check it a t least
once every three months.
2) Handle the SET3C with care. Avoid heavy shocks or vibration.
3) If any trouble is found on the rotatable portion, screws or
optical parts (e.g. lens), contact our agent.
4) When removing the SET3C from the carrying case, never pull
i t out by force. The empty carrying case should then be
closed to exclude dust.
5) Never place the SET3C directly on the ground.
1 6) Never carry the SET3C on the tripod to another site.
1
7) Protect the SET3C with an umbrella against direct sunlight,
rain and humidity.
8) When the operator leaves the SET3C, the vinyl cover should
be placed on the instrument.
9) Do not aim the telescope a t the sun.
10) Always switch the power off before removing the internal
battery.
I I ) Always remove the battery from the SET3C when returning
it to the case.
12) Do not wipe the display Q , keyboard @ or the carrying
case with an organic solvent.
13) When the SET3C i s placed in the carrying case, follow the
layout plan.
14) Make sure that the SET3C and the protective lining of the
carrying case are dry before closing the case.
The case i s hermetically sealed and if moisture is trapped
inside, damage to the instrument could occur.
2. PARTS OF THE INSTRUMENT
0 Handle
@ Circular level adjusting
Q Handle securing screw
@ Instrument height mark
@ Base plate
0 Memory card cover
@ Levelling foot screw
Q Display
@ Tribrach
@ Horizontal circle
O Lower clamp
0 Lower clamp cover
O Tribrach clamp
@ Circular level
screws
positioning ring
Keyboard
@ Objective lens
@J
(D Tubular compass slot
(D Battery BDC 18
@ Optical plummet focussing
ring
@ Optical plummet eyepiece
@ Power sw~tch
@ Horizontal clamp
@ Horizontal fine motion
screw
@ Data output connector
@ External power source
connector
@ Plate level
@ Plate level adjusting screw
@ Vertical clamp
@ Vertical fine motion screw
@ Telescope transitting knob
Q) Telescope eyepiece
@ Telescope reticle adjustment
cover
@ Telescope focussing ring
@ Peep sight
Note: Fine motion screws.
The horizontal and vertical fine motion screws have 2-speed (coarse
and fine) motions. The motion i s coarse when the screws feel heavy
to rotate. The opposite turning direction gives a moveable fine
motion "window".
3. FEATURES
The Intelligent Total Station SET3C is an advanced Electronic
Total Station.
@
@
@
@
Distance and angle measurements are electronically measured
and displayed on a main display located on both faces of the
instrument. These 3-line, 48-character alphanumeric dot-matrix
displays can simultaneously show measured or stored angle
and distance data or N- and E-coordinates and height, or display
prompts and messages. The 3-line, 12-character sub-display on
each face of the instrument shows the atmospheric correction,
prism constant value and instrument mode.
Advanced software functions include the calculation of 3dimensional coordinates, automatic calculation and setting of
the azimuth angle from input coordinates, traverse-style measurement, and setting out from input coordinates, in addition
to the standard functions of remote elevation measurement,
missing line measurement and setting out by distance and angle.
The distance measurement can be set to single or repeat readings with a choice of fine, coarse or tracking-type measurement
modes. The Instrument parameter settings are stored in an
internal memory which can be changed by key operation, and
remain stored in the memory even after power off. The atmospheric correction ppm values are calculated by the instrument
after input of the temperature and pressure values. A microcomputer constantly checks the instrument operation; if an
error is detected, an error message or code is displayed.
Both the horizontal and vertical circles are provided with 0
index points. The horizontal index can be set t o any direction
and the value is stored in the short-term memory so that even
after power is switched off (i.e. battery change), the previous
index position can be recovered when the instrument is
switched on and the circle is indexed again (in auto indexing
mode).
The tilt angles of the vertical axis are measured by an internal
2-axis tilt sensor. These tilt angles can be displayed for use in
accurately levelling the instrument, and can also be used to
automatically compensate the vertical and horizontal angles.
The SET3C instruments have 2-speed horizontal and vertical
fine motion screws for fast and precise target sighting.
Measured and input data can be recorded by the SET3C on
Sokkisha SDC2 memory cards. One 32Kb card can store
approximately 500 measured target points in angle and distance
(S, V, H) format. The data stored on the memory card can be
reviewed on the SET3C or read and output to a host computer
using the optional Sokkrsha SCRl memory card reader, or by
direct communication through the data output connector.
Coordinate data which has been stored on the memory card
(either by measurement or from an external device) can be
recalied as Instrument station coordinates, backsight station
coordinates or setting out coordinates.
0
The SET3C RS232C-compatibie data output connector allows
2-wav communication with an external device.
The SET3C Communication System
BU
lnterface cable
DOC l 0
Memory card
SDC2
lnterface cable
DOCl (No connector
for computer)
DOC25lDOC261
DOC27
Data recorder
SDR series
Memory card
reader SCR 1
lnterface cable
DOC6
lnterface cable
DOC22lDOC231
DOC28
Host computer
4. KEY FUNCTIONS
a Select the distance measuring mode ( m +
a Change the sign of the data input value
a Recall data from the memory
Move to previous option ( A )
8)
a Enter the Atmospheric correction
(Temperature/Pressurevalues (
Enter "7"
Measure slope distance
m+g )
.
Enter the prism constant value
Enter "8"
Measure horizontal distance
m+g )
a Change meters * feet for 5 seconds
a Enter "9"
Measure height difference
a
(m+ g )
EDM
power ON/OFF for locating prism
Display and reticle illumination ON
(m+&)
m+
LLeJ
a Enter Backsight station coordinates (
Enter
" (Decimal point)
Setting out measurement (+ mode key)
Move to next option (V
".
0
0
Enter coordinates of point to be set out (
Enter "4"
Measure 3-dimensional coordinates
m+
1 L P
)
m+a)
E
o Enter Instrument station coordinates (
0 Enter "5"
Measure remote elevation
(m+a)
6-4
0
0
Enter distance setting out data
Enter "6"
Missing line measurement
m:
Clear entered data
Stop measurement and transfer to basic mode
o
d
e
o
;;;rL
E
:;
0
0
Set the horizontal angle to zero/ln Missing
line measurement, change the starting
@
0
( m+ m)
o SET
Enter "0"
Output data to the memory card
Set horizontal circle t o a required value
Enter "1"
Transfer to menu mode
(m+@)
v
(=+Gi
Q
0
Set azimuth angle from lnstrumenr and
Backsight station coordinates
Enter "2"
Select horizontal angle right, left or repetition
a Set Instrument station coordinates and azimuth angle
m+&)
@
0
0
0
using data from previous station (
Enter "3"
Transfer to theodolite mode
Display tilt angle (When instrument is in Theodolite
mode and the "Tilt correction" parameter i s ON)
Enter data into memory
SePect/re!ease SHIFT mode (Upper key functions)
Enter "Yes"
MODE DIAGRAM
Switch o n
V, H circle indexing
( A n g l e measurement)
-
Distance
c- and angle
(Data e n t r y and start
measurement and recall)
Menu mode
Data e n t r y
M e m o r y card commands
Instrument parameter
settings
measurement
REC mode
(Data recording)
( M e m o r y card
DISPLAY SYMBOLS
Upper Display:
p p m value
Prism constant value
v1
l+
T i l t compensation o n
SHFT
S h i f t mode
pSO
Setting o u t
M E N U Menu m o d e
t
RCL
1
REC
Recall m o d e
Record mode
The main lower display shows program prompts, stored, entered
and measured data, and error messages.
5. BATTERY BDC18: MOUNTING AND CHECK
Ensure that the SET3C power switch
Q is off.
Mount the BDC18 battery in the
SET3C. Hold the left standard and
push the battery until a click is heard.
Confirm that the battery is securely
mounted.
Level the SET3C instrument.
4) Instrument and battery check:
Switch the SET3C power switch Q
on.
P
The audio tone sounds and the instrument performs self-diagnostic checks.
"Self check ok" is displayed for two
seconds when the instrument has successfully completed the checks.
1
Self check o k
The remaining battery power is then
displayed for three seconds in the
format "Battery level X" where X
represents the battery level as follows:
Code
P
0 ..... less than 1 h r
1
..... less than
2
3
..... less than 5 hrs
..... less than 9 hrs
1.5 hrs
[Angle-only
rneasu rernent
at 2 5 ~ C ~
The display of "ZAIHAR 0 SET" indicates that the instrument is ready for
vertical and horizontal circle indexing.
I f "HAR 0°00'00""or "ZA Face 1" is
displayed, the Horizontal/Vertical indexing is set to "Manual". See "Instrument parameter settings'' on page 44-.
Battery is low
Battery
release
button
If "Battery i s low" is displayed, the
/BD18 battery should be recharged or
replaced by a charged battery.
TO remove the battery, ensure that the
SET3C power switch is off, then push
down the battery release button.
1
Memory error
v1
A display of "Memory error" after
more than 1 week of power off means
that previously-entered data such as
station and backsight coordinates, instrument and target heights and setting
out information has been cleared from
the short term memory.
When the l+ symbol is shown on the
small display, the vertical and horizontal angles are automatically compensated for small tilt errors using the
2-axis tilt sensor. The tilt sensor has a
range of rlr3'.
1
Out of range
If "Out of range" is displayed, the
SET3C tilt sensor is indicating that the
instrument is off-level. The instrument
should be re-levelled using the plate
level bubble.
l nstrument parameters: See page 44-.
The "Tilt correction (Dual axis)" parameter can be used to
switch on (Yes) and off (No) the automatic angle compensation.
For example, the compensation should be switched off if
the displayed values are unsteady due to vibration or strong
wind.
6. SETTING UP THE INSTRUMENT
6.1 CENTRING THE SETSC BY ADJUSTING TRIPOD LEG
LENGTH
1 ) Make sure that:
a. The tripod head is approximately level.
b. The tripod shoes are firmly fixed in the ground.
2) Set the SET3C on the tripod head. Tighten the centring screw.
3) Focus on the surveying point:
a. Turn the optical plummet eyepiece @ to focus on the
reticle.
b. Turn the optical plummet focussing ring @ t o focus on the
surveying point.
4) Turn the levelling foot screws (D to centre the surveying point
in the reticle.
5) Observe the off-centre direction of the bubble in the circular
level Q. Shorten the leg nearest that direction, or extend the
leg farthest from that direction.
Generally, two legs must be adjusted t o centre the bubble.
6) When centring of the circular level is completed, turn the
levelling screws to centre the plate level @ bubble.
7) Look through the optical plummet again. I f the surveying
point is off-centre, loosen the centring screw to centre the
surveying point on the reticle. Tighten the centring screw.
8) Repeat 6), 7) if the plate level bubble is off-centre.
1 ) Looking through the telescope, turn the eyepiece fully clockwise, then anticlockwise until just before the reticle image
becomes blurred. I n this way, frequent refocussing can be
dispensed with, since your eye is focussed at infinity.
2) Loosen the vertical @ and horizontal clamp @.
Bring the target into the field of view with the peep sight Q .
Tighten both clamps.
3) Turn the focussing ring @ and focus on the target.
Sight the target centre using the vertical @
and
l horizontal
fine motion screws @ . Focus on the target until there is no
parallax between the target and the reticle.
Parallax:
Relative displacement of target image in respect t o the
reticle when observer's head is moved slightly before the
eyepiece.
I f sighting i s carried out before parallax is eliminated,
this will introduce errors in reading and will impair your
observations.
7. INDEXING THE VERTICAL AND HORIZONTAL
CIRCLES
Switch the SET3C on, and ensure that the display shows the
"ZAIHAR 0 SET" prompt.
( I f H andlor V circle indexing parameters are "Manual", this
procedure is different.)
- - - - W a i t i n g for vertical circle indexing
- - - - Waiting for horizontal circle indexing
1 ) Vertical circle indexing:
Loosen the vertical clamp @ and
transit the telescope completely.
(Indexing occurs when the objective
lens crosses the horizontal plane in
face left.)
1
R; :
5
1
D The m d i o tone sounds and the vertical
angle (ZA) is displayed.
2) Horizontal circle indexing:
Loosen the horizontal clamp @ and
rotate the upper part of the instrument
through 360°.
ZA
HAR
81°38'45"
314°50'35"
1
D The
audio tone sounds and the horizontal angle right (HAR) is displayed.
Measurement can now take place
The instrument is now in Theodolite
(Angle measurement) mode.
Note: Each time the instrument is switched on, the vertical and
horizontal indices must be re-determined. However, note
that if the instrument was only switched off for a short
time (less than 1 week), the previous horizontal 0' position will be recovered when the horizontal circle is
indexed again.
Instrument parameters: See page 44-.
The "V indexing" parameter can be used to change the
vertical circle indexing method. Options are indexing by
transitting the telescope as above or indexing by face left,
face right sightings. See page 79.
The "H indexing" parameter can be used to change the
horizontal circle indexing method. Options are indexing by
rotating the upper part as above or indexing and zero
setting a t power on.
8. ANGLE MEASUREMENT
G o t o distance measurement:
Return t o angle measurement:
8.1 SELECTION OF HORIZONTAL ANGLE DISPLAY
m
The
key can be used to select the required horizontal angle
display.
The options are:
Horizontal angle right
HAL:
Horizontal angle l e f t
H A R p : Horizontal angle by repetition
8.2 SETTlNG THE HORIZONTAL ANGLE TO ZERO
Press
Bi
to set the horizontal
angle value to zero.
This zero position is memorized for up
to a week after Dower off.
8.3 SET THE HORIZONTAL ANGLE TO A REQUIRED
VALUE
e.g. Set 90°30'20" to reference target R.
@+G
1 ) Press p& +
H angle
I
B
'0-
for the input of the horizontal angle
val ue.
< l n p u t value >
l
m. The display prompts
2) lnput the value as 90.3020 and press
to enter the value.
The display returns to the angle measurement display and the horizontal
angle is set to 90°30'20"
The input angle value should be between 0°00'00" and 359'59'59''.
To correct a mis-entered value, press
Bto clear the wrong value then input
the correct value.
To exit from the angle entry function,
press
two times.
Instrument parameters: See page 44-.
1
I
The "Vertical angle display mode" parameter can be used
to change the displayed vertical angle. Options are 0' at
zenith, 0' horizontal on face left, and 0' horizontal +90°.
8.4 TlLT ANGLE DISPLAY AND TlLT COMPENSATION OF
MEASURED ANGLES
The SET3C is provided with a 2-axis (X, Y) tilt sensor which is
used to automatically correct the vertical and horizontal angles
for errors due to the non-verticality of the vertical axis. The tilt
angle X and Y values can be displayed.
Note that the "Tilt correction (Dual axis)" parameter must be
set to ON (l+ symbol shown in small display) to obtain tiltcorrected angles and the tilt angle display. See page 44-.
r
1 ) In the angle measurement mode, press
HAR
314°50'35"
a
1
a.
The X and Y tilt angles are displayed.
T i l t angle
y
X
.
X: T i l t angle i n sighting axis direction.
0001'25" --.--O00O'45" - - - - - Y: T i l t angle i n horizontal axis direction,
To use the tilt angle display to level
the instrument for the most accurate
measurements, see section 19.1 on
page 77.
To exit from the tilt angle display,
press @again to return to theodolite
mode, or press
to go to Basic
mode.
The range of the tilt sensor is 23'. I f
the tilt angle is greater than this, "Out
of range" is displayed.
Notes for horizontal angle tilt compensation
The formula used for calculation of the tilt compensation value
applied to the horizontal angle uses the tilt and vertical angles
as shown below:
Comperisated = Measured
+ Tilt angle Y
horizontal angle horizontal angle tan (Vertical angle)
0
0
Therefore, when the instrument is not perfectly levelled,
changing the vertical angle (i.e. rotating the telescope) will cause
the displayed (compensated) horizontal angle value to change.
(The displayed horizontal angle value will not change during
telescope rotation when the instrument is correctly levelled.)
When the measured vertical angles are within f l 0 of the zenith
or nadir, tilt compensation is not applied to the horizontal
angle. In this situation, the displayed horizontal angle value
flashes to show that the tilt compensation is not being applied.
8.5 DISPLAY AND RETICLE ILLUMINATION
For work in low-light conditions, the H key can be used to
switch on the display and reticle illumination.
Instrument parameters: See page 44-.
ters can be used t o change the illumination function.
"Reticle illumination" has the option of bright or dim
~llumination,and "Backlight control" allows the user to
select a 30-second automatic cut-off function or to switch
onloff by pressing H.
Measured horizontal, vertical and tilt angles can be recorded on
the SET3C memory card. See page 51
-.
9. PREPARATION FOR DISTANCE MEASUREMENT
9.1 ENTRY OF PRISM CONSTANT VALUE
The prism constant value can be entered for correction of the
measured distances.
The stored prism constant value is shown in the small upper
display of the SET3C and is stored in the permanent memory.
W
1) Press
to enter the Basic mode from
the Angle measurement mode.
"Press function k e y s . . ." is displayed.
t o select operation
2) Press
= + g
8 to
enter the prism
constant setting display.
1
1
+
P!iyn constant
The previous stored prism constant value is
displayed.
3) To change the prism constant, input
the required value (taking care with
the sign) and press
to enter the
value in the memory. The instrument
returns to the "Press function keys . . ."
display.
e.g.
(gJ@Jt;am
Prism constant
T h e prism constant value can be input
as a value from -99mm t o +99mm in
1 mm steps.
To correct a mis-entered value, press
to clear the wrong value, then
enter the correct value.
e TO exit from the prism constant setting mode to the Basic mode, press
two times.
*
v1
t o select operation
To input a prism constant correction value of -30 mm, enter:
m
9.2 ATMOSPHERIC CORRECTION
In the SET3C i t is possible either to set Oppm, or to input the
temperature and pressure from which the ppm correction will be
automatically calculated and applied.
The stored ppm value is displayed on the small upper SET3C
display and is stored in the temporary memory for about 1 week
after power off.
1 ) From the SET3C Basic mode ("Press
function k e y s . . ." displayed), press
+
to enter the Atmospheric
correction setting display.
t o select operation
m &
m+&
Select
1. Set 0 p p m
2. Set value
Atmospheric correction n o t applied
( p p m value = 0).
'---Enter temperature and pressure values for
automatic p p m calculation and correction
.-.
2) Either:
to set Oppm (no atmospheric
Press
correction). The SET3C returns to the
basic mode after setting Oppm.
m
O P P ~
3) Or:
hicl
.
a) Press
to input the temperature and
pressure values. The display prompts
for the input of the Temperature (T)
value. Use the keyboard to input the
to enter it.
value and press
The display prompts for the input of
the Pressure (P).
15
I
< Input temp >
I
< i n p u t press >
9
m
b) Input the pressure value and press
to enter it.
The ppm value is calculated and displayed on the SET3C small upper
display and this value is applied t o all
measured distance values. The instrument returns to the Basic mode.
l
The
V1
to select operation
entered values should be between
-30°C and +60°C (-22°Fand 140°F)
for temperature, and between 500mb
and 1400mb (375mmHg and 1050
mmHg) for pressure.
To correct a mis-entered value, press
t o clear the wrong value then input
the correct value. The ppm value is
memorized for about a week after
power off.
W h e n temperature is known in "C and
pressure is in mb, the following formula is used:
m
ppm = 278.96 -
0.2904 X P (mb)
1 + 0.003661 X T ( " C )
instrument parameters: See page 44-.
The "Temp & Press units" parameter can be used t o change
the units for temperature and pressure entry. Options are
"C, "F, mb, mmHg, inchHg.
9.3 SELECTION OF THE MEASUREMENT MODE
The distance measurement mode can be set to fine or coarse,
single or repeat measurements or tracking measurements using the
+
keys.
m
Press function keys
t o select operation
1. Fine meas
2. coarse meas
3. Track meas
I-
1X
1. Fine measurement:
Reading at first after 6 secs, then
every 4 secs i n m m units.
2. Coarse measurement:
Reading at first after 3 secs, then
every 1.5 secs i n c m units.
3. Tracking measurement:
Reading at first after 3 secs, then
everv 0.4 secs i n c m units.
1. Single measurement:
Takes one measurement.
2. Repeat measurement:
Continues t o take measurements
u n t i l the
key is pressed.
2. Repeat meas
m
m
1 ) From Basic mode ("Press function keys
m+
. . ." displayed), press
to enter the measurement mode setting menu. The
cursor flashes at the currently-selected option.
a
or
to select the Fine, Coarse or Tracking
2) Press
,
modes. I f Tracking mode is selected, the mode is set and the
instrument returns to the "Press function k e y s . . ." display.
3) For Fine or Coarse measurements, the display prompts for the
selection of l ) Single or 2) Repeat measurements. Input @
or
then the instrument returns to the Basic mode.
m,
To exit from the measurement mode setting displays, press
m. The previously-stored values are retained in the instrument memory.
When tilt compensation is not being applied, all the above
measurement times are 0.2 sec less.
9.4 EARTH-CURVATURE AND REFRACTION CORRECTION
The earth-curvature and refraction correction can be selected
using the "C + R correction" Internal parameter. This correction
is applied in the measurement of horizontal distance and height
difference and the Atmospheric refraction constant K can be
chosen as either 0.142 or 0.20.
When the correction is applied, the following formulas are used:
Horizontal distance after correction:
H' = S X sin Z -
K
1 -2
-X
R
S2 X sin Z
X
cos Z
Height difference after correction:
When the correction is not applied, the following formulas are
used :
Horizontal distance:
H = S X sin Z
Height difference:
V=SxcosZ
where:
S: Slope distance value (after atmospheric correction)
Z: Vertical angle (0' at zenith)
K: Atmospheric refraction constant ( A value of 0.142 or 0.20
can be selected using the Internal parameters. See page
44-.
R: Radius of the earth (6.372 X 106m)
Instrument parameters: See page 44-.
The "C + R correction" parameter can be used t o switch
on and off the curvature and refraction correction and to
select the refraction constant value. Options are: 1. Off,
2. On: K = 0.142, 3. On: K =0.20.
9.5 PRISM SIGHTING FOR ANGLE A N D DISTANCE
MEASUREMENT
1 ) Sight the centre of the reflecting prism
with the SET3C telescope.
Press function keys
t o select operation
m+&
2)To confirm the sighting, if required:
From the Basic mode ("Press function
displayed), press
+
keys . .
to switch the EDM power on for about
2 minutes to allow prism sighting.
"Signal" is displayed.
.l1
1
Signal
When the SET3C is correctly sighting
the prism, and the returned beam
strength is adequate for measurement,
a " * " symbol appears on the display
and an optional audio tone is output.
m+&
3) Press
m+& again to switch off the
power to the EDM unit.
t o select operation
"Instrument parameters: See page 44-.
The "Return signal audio tone" parameter can be used to
switch on and off the audio tone which is output when the
EDM is correctly sighting the reflecting prism.
10. DISTANCE MEASUREMENT
- Before distance measurement, ensure that:
@ The SET3C is set up correctly over the surveying point.
@ The remaining battery power is adequate.
@ The vertical and horizontal circles have been indexed.
@ The prism constant, curvature and refraction and atmospheric corrections have been correctly set. (See Section
9.)
@ The SET3C i s correctly sighting the reflecting prism and
the returned beam strength is adequate for measurement.
1 ) From the Basic mode ("Press function
keys. .
displayed), press
to
measure the slope distance.
."
to select operation
m
"S dist" is displayed while the SET3C
measures the distance.
After 6 seconds (fine measurement
mode), the slope distance value and
the vertical and horizontal angles are
displayed.
234.567 m
1Z023'45"
HAR
2) In the repeat and tracking measurement modes, press
to stop the
distance measurement. (In single measurement mode, this step is unnecessary.)
Horizontal distance and height difference:
I
l
.,\!I
1 I,,
;H,,:$?:
ZA
HAR
H
231.812m
81°12'35"
1Z023'45"
I
To measure horizontal distance or
height difference, follow the same procedure as described above, but in step
l ) , press
for horizontal distance
or press
for height difference.
Note: A display of "Signal off" or
"Timeout" means that the returned beam strength has decreased during measurement.
Ensure that the line of sight is
free from obstruction, press
to clear the "Timeout" display
and re-start the measurement.
35.845rn
HAR
12'23'45''
3) After distance measurement has been
performed and stopped, the Recall
key can be used to display the following data:
m
HAR
L@
234.567m
81'1 2'35"
12O23'45"
Slope distance
Vertical angle
Horizontal angle
231.812m
81'1 2'35"
1Z023'45"
Horizontal distance
Vertical angle
Horizontal angle
N. E, Z coordinates
(See Sections 11 and 12.)
Each distance value displayed is the result calculated from the
most recent measurement.
(To return to theodolite mode, press
W.)
Distance and angle values can be recorded on the memory card.
See page 51-.
11. PREPARATION FOR COORDINATE
MEASUREMENT
The SET3C calculates the 3-dimensional coordinates of the prism
position. To calculate the Z (Height) coordinate, first enter the
instrument and target heights, then the Instrument station coordinates.
By entering the Backsight station coordinates, sighting the backsight station and pressing a key on the SET3C keyboard, the
horizontal angle can be set to the azimuth value.
11.1 INPUT OF INSTRUMENT AND TARGET HEIGHTS
to select operation
1 ) From the SET3C Basic mode, press
a t o enter the Menu mode. "MENU"
is displayed in the small display.
2) Select the "1. Set value" option by
pressing
2. Card command
3. Config
I
a.
1. AZ S - 0 ang
2. lnstr Ht
3. Target Ht
3) To input the Instrument height value,
press
to select the "2. lnstr Ht"
option.
Instrument
:H$
o.ooom
4) lnput the instrument height value and
to enter it in the memory.
press
e.g. To input a height of 1.567m, input
< lnput value >
m
m
@&j@J&&j@
r
1. AZ S-0 ang
2. lnstr Ht
3. Target Ht
m
The display returns to the Set value
menu.
5) To input the Target height value, press
@ t o select the "3. Target Ht" option.
6 ) In the same way as described in part
:Ht:
4), input the target height value and
enter i t in the memory.
The display returns to the Set value
0.000m
< Input value
>m
I
I
1. AZ S - 0 ang
2. lnstr Ht
3. Target Ht
menu.
7 ) Press JZiji( (exit) to return to the main
menu display.
1. Set value
2. Card command
3. Config
Press function keys
to select operation
8) Press JZiji( again to exit from the Menu
mode to the Basic mode ("Press function keys. . ." displayed).
Entered data should be between
-9999.999 and +9999.999.
*The instrument and target height
values remain in the memory for about
a week after the instrument power is
switched off.
During data entry, press
to clear a
displayed value.
11.2 INPUT OF INSTRUMENT STATION COORDINATES
Instrument station coordinates can be input from the keyboard
as described below, or can be recalled from coordinate data stored
on the memory card (See page 63.).
Press function keys
to select operation
a+&
F""""
ST :N
,' :
0.000
0.000
< lnput N-coord >
m
1 ) From the SET3C Basic mode, press
B+ 3
t o enter the instrument
station coordinate setting display. Previously-entered coordinate values are
displayed, and the cursor flashes beside the N-coordinate. ( I f the display
shows "Stn point No.", the parameters
are set to read data from the memory
card. See page 63.)
2) lnput the N-coordinate value and press
to enter this value in the memory.
The cursor moves to the E-coordinate.
m
>m
< Input E-coord
< input~
->
~
to select operation
3) In the same way, input and enter the
~E and
~ Z-coordinate
~
d
values in the
memory. The display returns to the
Basic mode.
The instrument station coordinates are
stored in the memory for about a week
after the SET3C is switched off.
e The entered data should be between
-9999.999 and +9999.999.
t o clear a
During data entry, press
displayed value.
0
11.3 INPUT OF BACKSIGHT STATION COORDINATES
Backsight station coordinates can be input from the keyboard as
described below or can be recalled from coordinate data stored
on the memory card (See page 63).
L
-=+g
Press function keys
to select operation
1 ) In the SET3C Basic mode, press
+
to enter the Backsight station
coordinate setting display. Previouslyentered backsight station coordinate
values are displayed and the cursor
flashes on the N-coordinate position.
( I f the display shows "BS point No.",
the parameters are set t o read data
from the memory card. See page 63.)
< lnput N-coord
>m
< Input E-c00rd >
< Input 2-coord >
m
to select operation
2) Input the N-coordinate value and press
Bto enter the value in the memory.
The cursor moves to the E-coordinate
position.
3) In the same way, input and enter the
E- and Z-coordinate values. The display returns to the Basic mode.
The entered values remain stored in
the memory of the SET3C for about
a week after the instrument is switched
off.
- 29 -
Entered values should be between
-9999.999 and +9999.999.
During data entry, press
to clear a
displayed value.
W
11.4 SETTING THE AZIMUTH ANGLE FROM THE INSTRUMENT AND BACKSIGHT STATION COORDINATES
After input of the Instrument and Backsight station coordinates,
the SET3C can calculate the azimuth angle and can set this value
to the horizontal angle.
N
Backsight
Press function keys
t o select operation
1) With the SET3C set up over the Instrument station and in the Basic mode,
sight the Backsight station.
21 Press
"
L
Calculating
HAR
304°20'10"
Press function keys
t o select operation
m+
to calculate and set
the azimuth angle t o the horizontal
angle.
"Calculating" is displayed during calculation.
The SET3C returns to the Angle measurement mode and displays thevertical
and horizontal (azimuth) angle.
to return to the Basic mode
3) Press
("Press function keys. . ." displayed).
Note: I f the azimuth angle is already known, i t can be input
directly using the "Set the horizontal angle to a required value" procedure described on page 16.
12. COORDINATE MEASUREMENT
12.1 3-DIMENSIONAL COORDINATE MEASUREMENT
I
The following formulas are used for calculation of the 3-dimensional coordinates:
N-coordinate = No + S
X
sin Oz
X
cos OH
E-coordinate = E. + S
X
sin Oz
X
sin OH
Z-coordinate = Zo + Mh + S
X
cos Oz - Ph
where:
No, Eo, Zo:
S:
OZ:
OH:
Mh:
Ph:
lnstrument station coordinates
Slope distance
Vertical angle (0' at zenith)
Azimuth angle
lnstrument height
Prism height
When measuring 3-dimensional coordinates, i t is first necessary
to enter the lnstrument and prism heights, lnstrument and
Backsight station coordinates and calculate or input the
azimuth angle (see previous pages).
pressfunction keys
to select operation
1) Sight the centre of the reflecting prism.
2) From the SET3C Basic mode, press
"Coordinate" is displayed during measurement.
After 6.5 seconds (fine measurement
mode), the N-, E- and Z-coordinate
values are displayed.
123.456
345.678
34.567
3) In the repeat and tracking measurement modes, press
to stop the
coordinate measurements. (In single
measurement mode, this step is unnecessary.)
12.2 TRAVERSESTYLE COORDINATE MEASUREMENT
A t the first survey station, after entry of lnstrument and Prism
heights and Instrument and Backsight station coordinates, set the
azimuth angle from the lnstrument and Backsight coordinates and
then measure the 3-dimensional coordinates of the next survey
station. Switch off the SET3C and move it t o the next station
and set i t up. By sighting back on the first survey station and
pressing a key on the SET3C keyboard, the new lnstrument
station coordinates and azimuth angle are set in the instrument.
0"
A~
0"
I
Instrument
a
t.&
t./
0°
To station No. 2
'
/
Station No. 1
Backsight station
Azimuth angle
E
1) From the SET3C Basic mode, enter
the lnstrument and Prism heights and
lnstrument and Backsight station coordinates. Then set the azimuth angle
from the lnstrument and Backsight
station coordinates.
(See Sections
11.1,11.2,11.3,11.4.)
2) From the Instrument station, measure
the 3-dimensional coordinates of Station No. 1. (See Section 12.1.)
3) Switch the SET3C off, and move the
instrument to station No. 1 and set it
up over the survey point.
4) From Station No. l , sight back on the
to select operation
@+G
original instrument station.
5) In the SET3C Basic mode, press
a+
3 t o set the new instrument station
coordinates and azimuth angle in the
instrument.
The instrument asks
whether the new station coordinates
are to replace the previously-stored
ones.
7
Stn p t replace?
YesINo (Exit)
&
6) To set the new instrument station
coordinates, press
1
Replaced
4
HAR
291'23'45"
&.
The display shows "Replaced" to
signify that the coordinates of station
No. 1 have been set in the instrument.
The instrument then calculates and
sets the azimuth angle and returns to
the theodolite mode.
Coordinate values can be recorded on the memory card. See
page 5 1-.
13. REMOTE ELEVATION MEASUREMENT
When measuring the height of certain objects such as overhead
power cables where the reflecting prism cannot usually be positioned, the Remote elevation measurement function can be used
to calculate the height above the ground using a point directly
above or below the object.
Object
Object height
above ground
Prism height
1 ) Set up the reflecting prism directly
above or below the object to be surveyed using an optical nadir or plummet for accurate setting.
2) Measure the prism height above the
ground and input i t into the SET3C by
using the "Target Ht" option in the
Menu mode. See page 27 for procedures for entering the Target height
value.
E
Press function keys
to select operation
fa
234.567 m
HAR
12°23'45"
3 ) Sight the centre of the prism with the
SET3C and. in Basic mode. ~ r e s sthe
key to measure the slope distance.
Press (;ijiJ to stop the measurement, if
necessary. (For slope distance measurement procedures, see page 25.)
The measured values are stored in the
instrument memory.
m
4) Accurately sight the object.
E
4
16.290 m
HAR
12'23'45"
5) Press
a
to measure the object height
above the ground.
After 1 second, the object height
above the ground is d~splayed.
6) Press
mto stop the measurement.
Note that the vertical angle 11m1tfor t h ~ sfunct~onIS +8g0 from
the horizontal, and the Ht value Iimtt is +-g999999 m
(+32808 33 f t )
14. MlSSlNG LINE MEASUREMENT
This function allows the calculation of the slope distance, horizontal distance and height difference between the starting position (P,) and any other points. It is also possible to change the
starting position to that of the last-measured point.
Slope d~stance(S)
Instrument statlon
I) Set up the reflecting prisms on the
required number of target positions.
to select operation
€a
ZA
HAR
234.567 m
81°12'35"
12'23'45''
2) Sight the first prism P, (starting position) and, from the Basic mode, press
to measure the slope distance.
(For full description of slope distance
measurement, see page 25.1 Press
to stop the measurement, if necessary.
The measured values are stored in the
Instrument memory.
a
a
3) Sight prism P, and press
to start
the missing line measurement. "Missing
line" is displayed while the SET3C
performs the measurement.
After about 7 seconds (fine measurement mode), the Slope distance (S),
Horizontal distance (H) and Height
difference ( V ) between points P, and
P, are displayed.
t o stop the Missing line meas4) Press
urement, if necessary.
5) To continue the missing line measurement between P, and other points,
sight each reflecting prism in turn and
press
to start the measurement.
a
Change of starting position
The starting position (P,) can be changed
to the last-measured position (e.g. P,), by
l
pressing
ZA
HAR
231.812m
81'12'35"
12'23'45''
m+ g
.
Only
the
last-
measured polnt can be used in this proced U re.
6 ) After measurement to the prism point
(e.g. P,),
press
m+ g
t o use this
point as the new starting point.
The instrument asks whether the lastmeasured point is to be used t o replace
the original starting point.
Point replace?
Yes/No (Exit)
m
Ye S
1
Replaced
Press function keys
t o select operation
l
7) Press
to set the new starting point.
The display of "Replaced" confirms
that the new starting point has been
set. The display then returns t o the
Basic mode.
8) To continue measurement between the
new starting point and other prisms,
sight each prism in turn and press
a.
15. SETTING OUT MEASUREMENT
In Setting out measurement, the instrument displays the difference between previously-entered setting out data and the measured value. In the SET3C, it is possible t o set out a horizontal
angle, distance, remote elevation measurement or coordinates.
15.1 HORIZONTAL ANGLE SETTING OUT MEASUREMENT
Entry of the horizontal angle value t o be
t o select operation
m
@
1) I n Basic mode, press
t o enter the
Menu mode.
The menu options are displayed.
2. Card command
3. Config
@a
1
m to
select the "Set value"
option. The Set value options are
displayed.
2. lnstr H t
3. Target H t
1
63
I
I
A Z S - 0 ang
< Input angle >
2) Press
m
i
I
1. A Z S - 0 ang
2. lnstr H t
3) Press
option. The previously-entered horizontal angle setting out value is displayed.
4 ) lnput and enter the horizontal angle
setting out data using the SET3C keyboard.
e.g. To enter a value of 123'45'55''
Press
fa@
m to select the " A 2 S-0 ang"
@ @ @ 6 ; a @ ~ ~ ~
E9
The display returns to the Set value
options display.
m
5) Press
2 times to return t o the
Basic mode.
Horizontal angle setting out
kd (setting out) key. "Stakeout" is displayed.
6) Press the
M
kd
I
Stakeout
to start the Horizontal angle
setting out measurement and sight the
target.
The setting out data is displayed as
follows:
7 ) Press
dHA: Setting out data Measured horizontal angle value
' - - - HAR: Measured horizontal angle
When dHA becomes 0°00'00", the
target is on-line.
The dHA value is displayed +180°.
e The entered setting out data should be
between 0' t o 359°59'59".
0 The data is stored in the memory for
about a week after power off.
t o clear a displayed value
e Press
during data entry.
t o return t o basic mode after
o Press
completion of setting out.
15.2 DISTANCE SETTING OUT MEASUREMENT
I n distance setting out mode, it i s possible t o set out a slope
distance, horizontal distance, height difference or remote elevation value after inputting the required value.
Press function keys
m+&
S-0 distance
Entry of distance value t o be set out
l) In Basic mode, press
+
to
enter the distance setting out data display. The previously-entered distance
setting out value is displayed.
<
distance,
2) Input and enter the distance setting
out data using the SET3C keyboard.
e.g. To enter a value of
Press
123.456m,
@ m @ a a m @m
to select operation
(Entered values must be between
-9999.999 and +9999.999.)
The display returns to the Basic mode.
Distance setting out
3) Sight the reflecting prism.
6a
4) Press
to enter the Setting out
mode. "Stakeout" is displayed.
5)Press:
Display of S - 0
S, H, V, H t
distance values
for slope distance setting
out.
@ for horizontal distance setting out.
for height difference setting out.
for remote elevation setting out (after slope distance measurement).
After measurement, the setting out
values are displayed as follows:
Displayed value
= Measured value -Setting out value
When the value becomes 0.000, the
distance has been set out.
m
Press function keys
t o select operation
6)Press
to return to Basic mode.
15.3 COORDlNATES SETTING OUT MEASUREMENT
In coordinates setting out measurement, after entry of Instrument
and Prism heights and lnstrument and Backsight station coordinates and setting the azimuth angle, input the coordinates of the
point to be set out (or read previously-stored data from the
memory card as described on page 63). The SET3C calculates
the setting out horizontal angle and horizontal distance and stores
the values in the memory. By selecting the horizontal angle and
then the horizontal distance setting out functions, the required
coordinate location can be set out. The Z-coordinate can also
be set out using the setting out coordinate function.
Present prism position
Backsight
Azimuth to
be set out
A distance
Position to
be set out
,
Instrument
station
set
set out
out
1 ) From the SET3C Basic mode, enter
the lnstrument and Prism heights and
lnstrument and Backsight station coordinates. Then set the azimuth angle
from the lnstrument and Backsight
station coordinates. (For procedures,
seesections 11.1,11.2,11.3and 11.4.)
t o select operation
2) From the SET3C Basic mode, press
m+&
N .
0.ooom
m+6 to input and enter the coordinates of the point to be set out.
Previously-entered setting out coordinate values will be displayed and the
cursor flashes at the N-coordinate position. (If the display shows "S-0 point
No.", the parameters are set to read
data from the memory card. See page
63.1
< lnput N-coord >
m
3) lnput the N-coordinate of the point to
be set out and press
the memory.
m
< lnput 2-coord > m
< lnput E-coord >
Press function keys
to select operation
to enter it in
4) In the same way, input and enter the
E- and Z-coordinates. The instrument
calculates the setting out horizontal
angle and horizontal distance values,
stores them in the AZ S - 0 and distance
S - 0 memories, then returns to the
Basic mode display.
Note: Always perform the procedures
in the above order or the calculation may not be correctly
done.
+a
5) Press
to set out the horizontal angle. The display shows the angle
between the prism position and the
~ o s i t i o nto be set out.
< Set out horizontal
angle >
HAR
6)When the displayed setting out angle
127'43'30''
value becomes 0°, the prism is on-line.
fa
7) press
W to return t o Basic mode.
8)Press
a+
to select operation
@ +&g
< Set out horizontal
distance >
1
HAR
A
:
1
0.000m
8l012'35"
127O43'30"
to set out the horizontal distance. The display shows the
distance between the prism position
and the position to be set out.
9) When the displayed setting out distance value becomes Om, and the angle
setting out value is still 0°, the prism is
directly over the point to be set out.
Press
to return to the Basic mode.
fa
Press function keys
to select operation
To set the prism to the required height
+
to start
(Z-coordinate), press
the setting out coordinates measurement.
The N- and E-coordinate values should
already be zero, therefore move the
prism up or down at the correct N, E
position until the A Z value is zero.
a
When the AN, A E and A Z values are
all zero, the point has been set out at
the required 3-dimensional coordinate
position.
16. INSTRUMENT PARAMETER SETTINGS
16.1 ENTRY TO PARAMETER SETTING MODE
t o select operation
m
1 ) From the SET3C Basic mode, press
t o enter the MENU mode.
"MENU" is displayed in the small
upper screen.
m
1. Set value
2) Press @ t o select "3. Config" to enter
the Config (Instrument parameter setting) mode.
The first parameter "Recording" is
displayed.
@
Card Code T g t h t
0
L________J
@
W
The "c" symbol means that the
and
keys can be used t o move up
and down through the parameters.
The parameter options currently selected are displayed on the bottom line of
the screen.
In Parameter setting mode:
Q
To move to the previous parameter, press
@
To move to the next parameter, press
@
To change the parameter options, press
meter options are displayed.
m. The para-
Press
to select option No. 1.
to select option No. 2.
Press
Press
to select option No. 3.
After selection of the options, the display returns t o the
parameter display. The selected option is displayed on
the bottom line of the screen. Each time the instrument
parameter options are changed, the new settings replace
the previous settings stored in the permanent memory.
To e x i t from the option or parameter displays, p r e s s m .
The previously-stored values are retained in the memory.
Continue to press 8 to return to the Basic mode.
m
0
W.
a..
16.2 SUMMARY OF PARAMETER OPTIONS
Parameter setting mode:
Previous parameter:
N e x t parameter:
Change parameter:
Select o p t i o n 1:
Select o p t i o n 2:
a Select o p t i o n 3:
m
@
m
m
E x i t f r o m o p t i o n display:
I
/
parameter
I
Options
1 . Send data to ( * l . Card 2. Out)
2. Set code ( * I . Set 2. Skip)
3. Set target Ht ( " I . Set 2. Skip)
Recording
Audio for return
signal
1
Reticle
iilumination
Backlight control
Auto power off
Distance units
11
* 1 . On
2. o f f
1
Bright
2. Dim
* 1. On/Off by key operation
2. 30 seconds timeout
" l . 30 minutes timeout
2. Power On/Off with switch
* I . Metres
2. Feet
" I . None
C & R correction
Temp & Pressure
units
2. Applied,
3. Applied,
K =0.142
K = 0.20
* l . 'Cfmbar
2. OCtrnmHg
2. OF +mrnHg
3. (1. OF+mbar
3. OF + inchHg)
I
Options
Parameter
* l . Degrees
Angle units
2. gon
" I . 1" (0.2mgon)
Angle resolution
"I.Zenith 0'
2. Horizontal 0'-360'
(0-400gon)
3. Horizontal f 90' (+100gon)
V angle format
Tilt correction
RS-232C format
Coordinate data
from
Configuration
default set
1
" I . Yes
2. No
l . Baud rate ( " I . 1200 2. 2400)
2. Checksum ( " I . Yes 2. No)
3. Parity bit ( " l . No 2. Even)
" I . Keyboard
2. Card
Initialize: YeslNo
* Parameter options set at time instrument left the factory.
These options are reset when "Configuration default set" is
initialized.
16.3 CHANGING INSTRUMENT PARAMETER OPTIONS
'
I n Basic m o d e , press
t
@a
t o enter t h e parameter setting m o d e
(Press
a
t o exit)
Card Code Tgt ht
3. Set target ht
i ~
:?I=
Set
:l.: Set
2. Skip
a.1 fm,
(Press
a
t o exit)
,
h
Audio tone
N o audio tone
(Press
I(
a
t o exit)
+ Reticle
illumination
Bright
- - S t r o n g reticle
~llumination
Weak r e t i c t e
illumination
2. Dim
(Press
a
to exit)
+ Backlight
?-Switch on/off w i t h
'
key
A u t o o f f a f t e r 30
seconds
Key on/off
(Press
a
t o exit)
after 30 min.
Power on/off with
I
(Press
Hto exit)
Distances in metres
Distances in feet
"'I, , +
(Press
to exit)
' - - C + R correction,
K =0.20
I - I
(Press
to exit)
r
I
'C & mbar
2. "C & mmHg
3. Next
----.-
' - G o t o next display
screen
I
@
l.'F&mbar
-->
.-Enter values in
& mbar
Enter values in
O F
O F
& inchHg
(Press
a
to exit)
,--Angle values are in
(Press
to exit)
@34
(Press
mt o e x i t )
i
resolution
Angle display
5"/1 rngon
I"
(Press
I
l-
$ V angle format
@J.
t o exit)
L-
-m+ ::!':I
1
V.A. (0' a t zenith)
;V.A. (0° horizontal
*--
Zenith
2.H(0*360)
3. H. +l- 90
(Press
1
1
a
---
F . ,
--V.A.
- .(0'
horizontal
+90°/1 00gon)
t o exit)
Tilt correct~on
(dual axis)
T i l t correction
applied
Correction n o t
applied
i-
'
<-Transit telescope
t o index
(Press
t o exit)
1
I
S--
C
2. Manual
I
Rotate upper part
t o index
Index and 0 S E T
at power o n
I
(Press
mt o e x i t )
(Press
a
t o exit)
t
3. Parity bit
I
LTI
:'i:Yes
L
2. Yes (even)
(Press
!
Ht o exit)
1
keyboard
.:l:.> Keyboard
2. Card
(Press
a
Enter coordinate data
f r o m keyboard
iRead coordinate data
which has been
stored o n t h e
m e m o r y card
-- -
t o exit)
lnlt~allzed
default set
Default parameter
settbngs have been reset
l
I
(Press
t o exit)
"Recording" parameter
*Note: SET3C instruments w i t h serial numbers less than 106729 d o n o t
have the "Coordinate data from" parameter.
17. MEMORY CARD OPERATIONS
17.1 STORING DATA ON THE MEMORY CARD
Press function keys
t o select operation
&a
Memory card initialization
1 ) From the SET3C Basic mode, press
t o enter the MENU mode.
2. Card command
3. Config
Ld$
hicl t o select " 2 . Card command" to enter the card command
display.
2 ) Press
3) Lift up the SET3C memory card cover
0 and carefully insert a memory card.
The card should be inserted with the
arrow up and the printed side out.
Close the card cover.
New memory cards must be initialized
before use
2. Comrns
3. Data protect
m
1
-
1
initialize ok?
4) If memory card has not been initialized, or if previously-stored data is to
be cleared, press @ to start card
initialization.
5) The display will ask whether card ini-
& to continue
(Press m t o exit.)
tialization is ok. Press
N0
&
with initialization.
Yes * "l" key
Exit * "No" key
6) The display will ask for confirmation
that you want to initialize the card.
Press
! & f to initialize the card.
(Press
2. Cornrns
3. Data protect
Press function keys
t o select operation
& to exit.)
The display will show "Initialized" t o
indicate that the card initialization has
been completed, and the display will
return t o the card commands display.
two times to return t o the
Press
Basic mode.
Note: If memory card has been used,
and the stored data is to be
retained, DO NOT RE-INITIALIZE THE CARD.
If the memory card has been write
protected, i t will not be possible t o
re-initialize it. However, it can be reinitialized after the write protection
has been removed. For description of
write protection, see page 64.
17.2 D A T A RECORDING O N T H E M E M O R Y C A R D
lnstrument and measured data can be recorded on the memory
card. Items which can be recorded include: lnstrument identification (Name, Serial number and Program software version),
Station point data (Date, Station point No., Optional point code,
Instrument height, Atmospheric correction, lnstrument N-, E- and
Z-coordinates and lnstrument parameters), and Measured point
data ( I n various data formats with point number and optional
point code and target height inputs). Note that data is recorded
sequentially, and that once recorded, the data can not be edited.
The recorded data on the memory card can be write protected.
Note: To record data on the memory card, the "Recording" instrument parameter option "1. Send data to"
must be set t o "Card". (Default setting)
lnstrument parameters: See page 44-.
The "Recording" parameter can be used t o select the data
recording options.
These options are: 1. Send measured data t o (1) Memory
card or (2) External device, 2. lnput (1) or non-input (2) of
target point code description, and 3. lnput (1) or non-input
(2) of target height for each measured point.
m
1 ) In the SET3C Basic mode, press
to
enter the REC (data recording) menu.
"REC" is displayed on the small upper
display.
t o select operation
B
The SET3C checks the memory card,
and displays the following messages if
an error is detected:
Card checking
I
U
e If there is no memory card inserted in
No Card
1
Card bat.10~
1
the SET3C, "No card" is displayed.
e A display of "Card bat low" means
that the memory card internal batteries
are running low.
1
Card error
1
Card is full
1
e The error display "Card error" means
1
e When the memory card becomes full
that there is some problem with the
memory card. Replace with a new
card.
of data, "Card is full" is displayed.
The amount of available space for data
recording is displayed. A new card has
29696 available bytes (approximately
500 measured data points in S, V, H
format). If the number of remaining
bytes is small, i t is advisable t o change
t o a new card.
Card ready
29696 byte free
c
Select data formatfRecord data display
Select the format of the data t o be
recorded, using t h e m and
keys.
$ Select format:
S. V. H
Record?: Yes/No
---
'---.aMeasure and record thedata using
m.
%B
1. Select data format (not necessary if required data format is
displayed)
The displayed data format i.e. S, V, H can be changed, if required,
using the
and
keys.
The options available are:
Measure and record the target Slope
distance, vertical and horizontal angles
Measure and record the target v?rtical,
horizontal and t i l t angles
1
4 ,
1
1
N.E.2
sin
point data
lnstr ID
1
1
1
Measure and record the target North,
East and Elevation coordinates
Measure and record the target North, East
and Elevation coordinates and Slope
distance, vertical and horizontal angles
Input and record station point data
(See page 57.1
Record lnstrurnenr I D data (See page 59.1
2. Record the data
1
x
1
,
m,
=I,*
@For
formats:
and
IN,E,z+s,v,H]+
1 ) Sight the centre of the prism or target.
f Select format:
S, V,
H
Record?: YesINo
&
2) Press
& to start the data recording.
(During the data entry and recording
procedure, to exit press H.)
,
l
Or input point
No., then
m.
3) Enter or confirm the target point
number. The number displayed is the
last measured point number + l . To
confirm this point number, press
To enter a new point number (between
1 and 99991,use the SET3C key board
numerical keys to input the point
number, then press
@ If the "Set code" and "Set target Ht"
parameters have been set to "Skip",
the SET3C measures and displays the
selected data. (See 6) below.)
a.
m.
* N, E, Z, coordinate data recording
Coordinate data stored on the
and used as instrument station coordinates, backsight station
coordinates and setting out coordinates. See page 63.
< Optional target
height entry >
E
l nput target
:H{[ 1.5
.S,ce,
5) If the "Recording" parameter "Set
target Ht" option is "Set", input the
target Ht value and press
m.
m
6)The SET3C
measures and displays one
set of the target point data in the
selected format.
The measured values flash while the
data is being recorded on the card,
then "Target No. XXXX, Record end"
is displayed t o show that the data has
been successfuliy recorded. The display returns to the "Select format/
Record" display.
If the "Recording" parameter "Send
data to" option has been set t o "Out"
instead of "Card", the data error
"Record error" will be displayed.
Record end
@ For
v]
format:
&
Stn point data
Record?: YesINo
&
1 ) Press
to start the data recording.
(During the data entry and recording
procedure, t o exit, press H.)
The display prompts for the entry of
the date in the format "yy.mm.dd"
(Year.Month.Day).
Enter or confirm the date using the
key.
m
< Enter date >
m
2) The display asks for the entry or con-
D
Sin point
$0;
3
< Enter Stn NO. >
firmation of the station point number.
The number displayed is the previous
station point number + l .
m
input a station
Press
to confirm
numberthis
(between
number
1 and
(or
9999)and enter i t with
m).
< Optional code entry >
3) If the "Recording" parameter "Set
code" oprion is "Set", input the re-
Press 0 1 23456789
< Enter
Ht
>
quired code as described in 4) on page
56.
m
5) The display now asks for the input of
the atmospheric correction value. As
in Section 9.2 on page 20, input
t o set Oppm, which is recorded as a
temperature and pressure value, or
press
then input the temperature
and pressure, pressing
to enter
each value.
Select
1. Set Oppm
I
4) The display requests the instrument
height value. Enter or confirm the
instrument height using the @d key.
l
a3
P. 1013rnbar
'
l
Input temp
OPP~
I
Set
Input press
i
m
m
_i
ST N
:;:
< Enter N-coordinate >
< Enter E-coordinate >
< Enter Z-coordinate >
6) The display asks for the confirmation
or input of the station N-, E- and Zcoordinates. Confirm or enter the
coordinate values, pressing
t o enter
m
m
m
each
\ 1 1 1 I l i l i l l l f ,
-'Stn point data,:
After entry of the Z-coordinate value,
the display flashes "Stn point data"
while the data is being recorded on
the card, then "Record end", and the
display returns t o the "Select format"
display.
~ t # > , % , , , , \
1
Select format:
Stn point data
Record?: YesINo
@ For
1-
format:
&
I)Press
t o start the data recording.
The display flashes "lnstr ID" while
the data is being recorded on the card,
then "Record end" and the display
returns t o the "Select format" display.
l nstr ID
Record?: YesINo
&
I
Record end
r Select
format:
lnstr ID
Record?: YesINo
1
17.3 REVIEWING DATA STORED ON THE MEMORY CARD
Using the RCL REC mode, it is possible to review the target
point data stored on the memory card.
to select operation
&)+m
1 ) Press
+ f&j to enter the RCL REC
(memory card review) mode. The
"Data review" menu is displayed, and
"RCL" is displayed on the small display.
h
Data review menu
Data review
1. Index
2. Search
b;a
1. Display list of instrument station numbers
and measured data point numbers
---..
2. Review stored target or coordinate point
data by inputting the target or coordinate point number.
i-
'
2) Press
t o display the list of the
recorded instrument station numbers
and measured data point numbers.
The display shows "Reading. . ." while
the SET3C reads the data on the
memory card.
When the data has been read, the first
three data items are displayed on the
screen.
I
Reading..
..
Target No. 8000
Target No. 8001
If the card has no stored data, "No
data" is displayed.
or &$ to move up or down
@ Press
through the list of recorded data point
numbers.
W h e n a large amount of data has been
recorded, it is reviewed in blocks of
data. When the end of the block is
reached, the instrument will read and
display the next block of data.
0
$ Target No. 8014
Target No. 801 5
When the end of the recorded data is
reached, "<END
will be displayed.
Press
t o return to the R C L REC
menu.
>"
Target No. 8021
<END>
3) To review the measured target point
data (Instrument ID and Station point
1. Index
2. Search
data can not be reviewed using this
method), press
to search for a
particular target point number.
hid
The display requests the input of the
required target or coordinate point
number.
< Enter target No. 2.
m 4) Input the required target point number
and press m.
The instrument displays "Searching.
as i t looks for the data.
Code TREE-SIZE-
.:'
When the data is found, the point
name and the first two lines of the
measured data are displayed on the
screen.
1=
Target No. 8014
ZA
8P12'45"
HAR
/
123'45'50''
Search failed
1
1
0
and
keys to review
Use the
the stored data for this measured
point.
0
I f there is more than one point with
the same number, press
after
review of the first point t o review the
next point with the same number.
0
If the requested measured data point
number is not found, "Search failed"
will be displayed and the instrument
will return t o the RCL REC display.
Re-check the point number using the
"Index" function.
After data review, press
to the RCL REC display.
Press function keys
t o select operation
at o return
to return to the Basic mode
Press
from the RCL REC display.
17.4 RECALLING COORDINATE DATA STORED ON THE
MEMORYCARD
Coordinate data whlch has been stored on the memory card
(either by "N, E, Z" or "N, E, Z + S, V, H" measurement or from
an external device) can be recalled as Instrument station coordlnates, backsight statlon coordinates or setting out coordinates
To recall stored coord~natedata from the memory card, set the
[The default
"Coordinate data from" parameter to "Card".
setting keyboard" which allows input of coordinate data uslng
the key board.)
When the "Coordinate data from" parameter i s set to "Card",
coordlnate data stored on the memory card can be recalled as
foliows
Recall lnstrument station coord~nates
m
and input the stored coordinate data point
Press
+
number.
e Recall Backs~ghtstation coord~nates
m g
Press
+
and Input the stored coord~natedata point
number
e Recall Setting out coord~nates
m
&
Press
+
and inpur the stored coordinate data point
number.
The SET3C displays "Searching.. ." as it looks for the coordinate data on the memory card, then displays the coordinates and
sets them in the coordinate memories.
( I f the coordinate data is not found, "Search failed" is displayed.
If more than one stored coordinate data record has the same
point number, only the first can be recalled.)
After setting the azimuth angle from the instrument and backsight coordinates (see page 30), setting out can be performed.
When recalling setting out coordinates, the angle and distance
setting out values are automatically calculated and stored using
the lnstrument and backsight station coordinates in the SET3C.
17.5 MEMORY CARD DATA PROTECTION
Once data has been recorded on the memory card, i t can be
protected from erasure or re-initialization by the write protect
function.
TO set write protectlenable t o the meml
k&a
1 ) From the SET3C Basic mode, press
t o enter the MENU mode.
2. Card c o m m a n d
3. C o n f i g
654
2) Press h;d to select "2. Card command".
2. C o m m s
3. D a t a p r o t e c t
3) Press
L
4) Press
press
Write
1. p r o t e c t on
2. enable
!&k
m to select "3. Data protect".
€33
to write protect the card, or
t o write enable a card that
has
"Card
previously
checking"
beeniswrite
displayed,
protected.
then
"Write protected" or "Write enabled",
to show that the function has been
completed, and the display returns to
the card command display.
1
l
Write protected
enabled
5) Press
two times to return t o the
SET3C Basic mode.
18. CHECKS AND ADJUSTMENTS
I t is important that the SET3C is periodically checked and adjusted. In addition, the instrument should be checked after transportation, long storage or when damage to the instrument is
suspected to have occurred. The checks should be performed as
follows:
18.1 ANGLE MEASURING FUNCTION
18.1. l Plate level
18.1.2 Circular level
18.1.3 Reticle adjustments
a) Perpendicularity of the reticle to the horizontal axis
b) Vertical and horizontal reticle line positions
18.1.4 Coincidence of the distance measuring axis with the
reticle
18.1.5 Optical plummet
18.1.1 Plate level
The glass tube of the plate level is sensitive to temperature change
or shock. Be sure to check the plate level @ before use.
1) See the figures below for relation between bubble movement
and rotation of the levelling screws.
2) Turn the upper part of the SET3C until the plate level is
parallel to a line between levelling screws A and B. Then
centre the bubble using levelling screws A and B.
3) Turn the upper part 90' (100gon) until the plate level is
perpendicular to a line between levelling screws A and B. Then
centre the bubble by turning levelling screw C.
C
Levellmg screw
@-
Plate level bubble
A
4) Turn the upper part 180' (200gon). Correct any bubble
deviation by half the amount with levelling screw C.
5) Correct the remaining half deviation by turning the plate level
adjusting screw @ with the adjusting pin.
6) Repeat 2) to 5) above until the bubble remains in the same
position for any position of the upper part.
18.1.2 Circular level
When the plate level adjustment is complete, the circular level @
should be checked. Note the direction off-centre of the bubble.
Loosen the adjusting screw @ farthest from that direction and
tighten the other adjusting screws to centre the bubble. Ensure
that the tension of each screw tightening is the same after adjustment.
18.1.3 Reticle adjustments
a) Perpendicularity of the reticle to the horizontal axis
1 ) Select and sight a clear target on the upper part A of the
vertical reticle line.
2) Turn the telescope slowly upward with the vertical fine
motion screw @ until the target slides to the lower part B.
If the target is still centrally within the vertical lines, no adjustment is necessary. If necessary, adjust as follows.
3 ) Unscrew the reticle cover
a.
4) Slightly loosen one vertical and one horizontal adjusting screw
by a certain amount.
5) PIace a small piece of plastic or wood against one side of the
top adjusting screw as a buffer.
6) Look through the eyepiece and gently tap the piece of plastic
or wood to rotate the reticle slightly.
7 ) Re-tighten the two adjusting screws (loosened in 4 ) ) by the
same amount. Check the reticle perpendicularity again and
readjust if necessary. Replace the reticle cover @.
b) Vertical and horizontal reticle line positions
When the index error adjustment is complete, the position of the
reticle should be checked.
1) Level the SET3C. Select a clear target at a horizontal distance
of 50 to 100m.
2) After indexing the vertical circle, sight the target and take the
horizontal angle reading in face left (V1), e.g. a l = 18O34'00
(al = 20.6296gon) and the vertical angle reading, e.g. b l =
90°30'1 0" (bl = 100.5586 gon).
3 ) Next, In face rlght (V2), slght the same target. Take the horlzontal angle readlng, e.g. a, = 198~34'10"(a, = 220.6326gon)
and the vertlcal angle reading, e.g. b, = 269°30'00 (b, =
299.4444 gon).
4) Calculate a, - al, b, + bl.
a, - at = 198°34'10" - 18°34'00" = 180°00'1 0"
(a, - a1 = 220.6326 gon - 20.6296 gon = 200.0030 gon)
b, + b l = 269"30'0OU + 90°30'1 0" = 360°00'1 0"
(b, + b l = 299.4444 gon + 100.5586 gon = 400.0030 gon)
5) When the ret~cleis In the normal posltlon, your results should
show that a, -a[ iswlthrn 20" 10.0060gon) of 180" (200gonj
and b, + b l I S wlthln 20" (0.0060gon) of 360' 1400gon). If
the difference of a, - a1 from 180' (200gon) or b, + b l from
360" (400gon) IS 20" (0.0060 gon) or greater after several
checks, adjust as follows
6) While still In face right (V2), use the hor~zontaland vertical
fine motion screws to adjust the lower display, a, and the
upper dlsplay, b, to read
Example
If a1 = 18"34'0OU
b l = 90°30'1 0"
a, ==
al
a, = 198"34'30"
b, = 269"30'10"
+ gOo
2
198'34' 15"
=
18"34'00' + 198O34'30"
2
7 ) Look through the telescope The target
the vertical and horizontal retlcle l~nes.
IS
+
seen shlfted from
8) Remove the reticle adjustment cover @.
Adjusting screws
@
9) Adjust the reticle sideways with the adjusting screws until the
target is centrally within the vertical lines, and then adjust it
up or down with the screws until the target is centrally within
the horizontal lines.
For example, t o move the vertical reticle t o the right (left)
side, first slightly loosen the left (right) adjusting screw, then
tighten the right (left) adjusting screw by the same amount.
Repeat until the reticle comes close t o the target centre.
In the same way, t o move the horizontal reticle line down
(up), slightly loosen the top (bottom) screw, then tighten the
bottom (top) screw by the same amount and repeat until the
reticle comes close t o the target centre.
10) Replace the reticle adjustment cover.
This adjustment is very delicate. I f you find it difficult, please
contact our agent.
After this adjustment, check the coincidence of the
distance measuring axis with the reticle.
18.1.4 Coincidence of the distance measuring axis with the
reticle
When the reticle has been checked, check the distance measuring
axis relative to the reticle as follows.
1 ) Level the SET3C. Set up the reflecting prism at a horizontal
distance of 50 to 100 m (150 to 300 i t ) .
2) Sight the reflecting prism centre and take the horizontal and
vertical angle readings. (H and Z respectively)
3 ) In Basic mode, press
m + 6 on the keyboard and check
that "Signal rl< " is displayed.
4)Four
more readings are necessary.
Turn the horizontal or vertical fine motion screw slowly until
mark goes off. Then take readings.
the return signal
Readings H[, H,:
when the telescope is directed to the left
(right) of the sighted direction in 2) above.
Readings Z, Z b : when the telescope is directed above
(below) the sighted direction in 2) above.
5) Check the differences of HI (H,) against H, and Z, ( Z b )
against Z.
When the four differences obtained are all larger than 2.5'
(0.046gon), the coincidence is normal. If the differences
obtained are less than 2.5' (0.046gon), please contact our
agent.
"*"
18.1.5 Optical plummet
1 ) Level the SET3C. Centre a surveying point in the reticle of the
optical plummet. Loosen the horizontal clamp and turn the
upper part through 180' (200gon). If the surveying point is
still centred, no adjustment is necessary.
2) If the surveying point is off-centre, correct half the deviation
with the four adjusting screws, and correct the remaining half
with the levelling screws.
3) Repeat the adjustment if necessary.
18.2 DISTANCE MEASURING FUNCTION
18.2.1 Check flow chart
Beginning
1
1
C/
Level the instrument
-C
1
Power switch ON
Audio tone heard?
i
Yes
+
/
1
1
Index Horizontal
and Vertical clrcles
Slght reflecting
prism correctly
and press
1
mm
i
"Signal
+
No
"
displayed?
+
"
" disappears
from display?
Remove lens cover
G
Press
g;X) again
Continued o; the next page.
1
t
power switch
t
OFF
1
--
1
i
Select fine, repeat
EDM measurement
mode
,
t
1
Press
i
Replace or charge
the battery
Check contact of
battery terminals
l
I
Power switch ON
l
t
Distance displayed
Press
m
Power switch OFF
Contact our agent
U
Check is compiete
Note: If error codes E X X X are displayed, please contact your
Sokkisha agent.
18.2.2 Additive distance constant
The additive distance constant of the SET3C is adjusted to 0
before delivery. However, the additive constant can change with
time and so should be determined periodically and then used t o
correct distances measured.
I) Determining the additive distance constant.
The most reliable method of determining the additive distance
constant is to test the SET3C on an established base line with
a maximum range of approximately 1,000 m, and with 6 to 8
intermediate stations spaced at multiples of the instrument
unit length, which is 10m. Measurements should be taken in
all combinations of the 6 t o 8 stations.
I f an additive distance constant of greater than 5 mm is found
please contact our agent.
2) Confirmation of the additive distance constant K if a base line
is not available.
a. Select points A and B on flat ground about 100 m (300ft)
and C in the middle.
b. Set up the SET3C at A, and measure the distance AB.
Note: Be sure prism height is the same as the height of the
SET3C objective lens centre. If ground is not level,
use an automatic level to set correct instrument
heights of all points.
c. Shift the SET3C to C, and measure the distance CA and CB.
d. Compute the additive distance error K using the formula:
K=AB-(CA+CB)
- - AB, CA, CB: Average of ten measurements.
e. Obtain the K value three times. I f all K are greater than
5 mm, contact our agent.
19. FOR ANGLE MEASUREMENT OF THE
HIGHEST ACCURACY
19.1 LEVELLING BY REFERRING TO THE DISPLAY
For the most accurate measurement of horizontal angles, particularly for steep observations, the SET3C should be levelled using
the tilt angle display. The index error of the tilt angle can be
eliminated by taking readings on 0' and 180'.
Note: To display the tilt angles, the "Tilt correction (dual axis)"
parameter must be set t o "On" (l+ symbol shown in
small upper display). See page 44-.
1 ) Level the SET3C with the plate level @.
2) Tighten the vertical clamp @ w i t h the telescope approximately
horizontal.
3 ) Use the horizontal clamp @ t o turn the upper part of the
SET3C until the plate level is parallel t o a line between
levelling screws A and B. Then, in theodolite mode, press
m+ g to set the horizontal angle t o 0'
ZA
HAR
4) Press
(Ogon).
89' 12'34"
0°00'00"
to display the X and Y tilt angle
X tilt
angle
C
A
Y tilt angle
5) Wait for a few seconds until the tilt angle reading is steady.
Then press
m+ g.
T i l t angle
Face 2
HAR
0°00'00"
6 ) Turn the upper part of the SET3C through 180' (200gon).
Tilt angle
Face 2
HAR
180°00'00"
7) Wait for a few seconds until the tilt angle reading is steady.
to display the corrected X and Y tilt
Then press
+
angle values.
m
8) Referring to the displayed tilt angle values, level the SET3C
using levelling screws A and B until the displayed X value is
0°+1", then use levelling screw C until the displayed Y axis
value is 0°+1 ".
The vertical axis levelling errors have now been minimized.
Tilt angle
0"00'00"
a
9) Press lEifil to return to theodolite mode, or press
to go to
Basic mode.
Note: The index correction is lost when the SET3C is switched
off.
19.2 MANUALLY INDEXING VERTICAL CIRCLE BY FACE
LEFT, FACE RIGHT READINGS
Like every theodolite, the SET3C will have a vertical index error.
For angle measurement of the highest accuracy, the vertical index
error can be removed as follows.
1 ) From the Basic mode, press
+
to enter the instrument
parameters mode. Select the "V indexing" parameter and
change the setting to "2. Manual" {See page 44- for more
information.). Press
t o exit to the Basic mode, and switch
off the instrument.
2) Ensure that the SET3C is level, switch on the instrument and
make sure that the display appears as shown below:
a
1
7
HAR
OSET
3) In face left ( V l ) , accurately sight a clear target at a horizontal
distance 0.f about 30 m (100ft).
4) Press
and
g.
m
HAR
OSET
5) Next, in face right (V2), accurately sight the same target
m and m. When the vertical circle is indexed, the
0 SET
6) Press
display appears as below.
y
i
HAR
0
OSET
If the power switch has been turned OFF, the vertical circle
must be indexed again.
When moving the SET3C after measurement, turn the power
OFF.
Index the horizontal circle.
20. FOR DISTANCE MEASUREMENT OF THE
H I G HEST ACCURACY
20.1 ACCURACY OF MEASUREMENT OF ATMOSPHERIC
CONDITIONS
The relation between measured distance and the velocity of light
is given by
T: The period between light emission and reception.
C: The velocity of light in the air.
C,: The velocity of light in a vacuum.
n : Refractive index of the air.
The measured distance is affected by variation in the refractive
index
dD D
dn .
7 dn (or dD
n
+D
dn)
Therefore, the accuracy of measurement of the refractive index
must be the same as that of the measured distance.
To calculate refractive index t o an accuracy of 2ppm, temperature must be measured to within I 0 C and pressure t o within
5 mmHg.
20.2 TO OBTAIN THE ATMOSPHERIC PRESSURE
To obtain the average refractive index of the air throughout the
measured light path, you should use the average atmospheric
pressure.
In flat terrain there is little variation in the atmospheric pressure.
In mountains, the following calculation should be used.
Example:
t,:
Average sea level
{Temperature to: 20°C
Pressure P,: 7 6 0 m m H g
By the Laplace formula
Z,
t n +to
- Zo = 18,400 (1 + 0.00367 2
)
Log (Po/p,
t: Temperature ("C)
Z: Height above sea level (m)
P: Pressure (mmHg)
PO= 760 mmHg
to = 20°C
{Log 7 6 0 -
PZ = 10
Z, = 330 m
tl = 20°C
Z2 = 650 m
t2 = 18°C
650
78.400 (1 t 0 . 0 0 3 6 7
X
19)
1+ 70q
Average pressure: 717.5 mmHg
21. POWER SUPPLIES
The SET3C can be operated with the following combinations:
' 12 t o l 5 hours
" Standard set.
(100 t o 1 2 0 AC)
~
CDCl lD
(220 t o 240V AC)
Optional accessories are not
marked with an asterisk.
1 hour quick
charoer
+
Internal
battery
1 hour cigar
lighter charger
Battery
charging
adaptor
EDCl l
BDCl8
CDCl3
(12V DC)
1 hour quick
charger
CDC15
( 100. 120,
220. 240V AC)
AC power adaptor
EDC2
(100 t o 240V AC)
15 hours charger
CDC14A
(120V AC)
€DC3
Cable t o
cigar lighter
"
External battery
converter
EDC14
€DC4
LQJ
Cable t o car
battery
EDC5
Use the SET3C only with the combinations shown here.
Note: When using the SET3C with external power supplies, i t is
recommended that for the most accurate angle measurements, the BDC18 battery be left in place to balance the
weight on the axes.
Battery charging precautions
1
TO charge the battery, use only the recommended charger.
1
1) Charge the battery at least once a month if it is not used for
a long time.
2) Charge the battery at a temperature between 10°C and 40°C.
3) Before using EDC2 or CDC15, set the voltage selector t o the
proper voltage.
4) EDC14 has a breaker switch. Normally the red mark appears
on the breaker. If not, set the red mark in place.
5) When using a car battery, make sure that the polarity i s
correct.
6) Make sure that the cigar lighter has 12V output and that the
negative terminal is grounded.
7) When charging the battery, first connect i t t o the battery
charger and then connect the charger t o the power supply.
Check that the battery charger light is on. I f not switch
power supply off and on again until the light comes on.
8) The battery charger may become warm while charging. This
is normal.
9) Do not charge the battery for any longer than specified.
10) Store the battery in a place where the temperature is between
O0 C and 40°C.
11) Battery operating life is shortened at extreme temperatures.
22. REFLECTING PRISMS A N D ACCESSORIES
A l l Sokkisha reflecting prisms and their accessories have standardized screws (5/8"
X l l thread) for easy compatibility.
* All the equipment described
APSlZP
above is optional.
APSl l P
Target fluorescent paint finishing allows clearer sighting in adverse
observing conditions.
-85-
Precautions
1 ) Carefully face the reflecting prism towards the instrument;
sight the target centre accurately.
2) To use the triple prism assembly AP31 or AP32 as a single
prism (e.g. for short distances), mount the single prism APOI
in the centre hole of the triple prism holder.
3) Check that "236" (the height of the SET3C) is displayed in
the window of the instrument height adaptor AP41.
The height of the AP41 can be adjusted as follows:
@ Loosen the two fixing screws.
@ T u r n the centre part counterclockwise to unlock it.
@
Move
li t up or down until "236" appears in the window.
@ Turn the centre part clockwise to re-lock it.
@ Tighten the fixing screws.
4) Use the plate level on the AP41 t o adjust the tribrach circular
level as in 18.1.2.
5) Check the optical plummet of the AP41 as in 18.1.5.
After ail checks and adjustments have been completed, make
sure that the AP41 optical plummet sights the same point as
the optical plummet of the SET3C.
23. STANDARD EQUIPMENT
t
SET3C main unit . . . . . . . 1
Internal battery. BDC18 . . 2
Battery charger.
CDCI IICDCI 1D . . . . . . . 1
Battery charging adaptor.
EDCII . . . . . . . . . . . . . . l
Tubular compass. CP7
(accuracy: 1') . . . . . . . . 1
Lens cap . . . . . . . . . . . . . . 1
Lenshood . . . . . . . . . . . . . 1
*
Vinyl cover . . . . . . . . . . . . l
Plumb bob . . . . . . . . . . . . 1
Tool pouch . . . . . . . . . . . . l
Screwdriver . . . . . . . . . . . . 1
Lens brush . . . . . . . . . . . . 1
Adjusting pin . . . . . . . . . . . 2
Cleaning cloth . . . . . . . . . . 1
Operator's manual . . . . . . . 1
Carrying case. SC78 . . . . . 1
SDC2 memory card . . . . . 1
24. OPTIONAL ACCESSORIES
24.1 MEMORY CARD READER SCRl
The card reader SCRl can be used to read data stored on the
memory card and transfer it t o a host computer.
SCR l specifications
AC power adaptor:
Interface cable:
I nputloutput:
Operating temperature range:
Weight:
EDC21 AC 100V
EDC21 AC 120V
EDC21 AC 220V
(Round pin plug)
DOC23 I BM connector
DOC22 NECIEPSON
DOC28 Toshiba J3100
RS232C compatible
0 to 50°C
450 g
24.2 lNTE R FACE CABLES DOCI, DOC25/DOC26/DOC27
The interface cable DOCI can be used for direct two-way communication between the SET3C and a host computer. This cable
is not provided with a connector on the computer end of the
cable.
Also available are: DOC25: NEC connector
DOC26: I BM connector
DOC27: Toshiba J3100
,
'
"
24.3 ELECTRONIC FIELD BOOK SDR SERIES
The SDR series collects and stores slope distance, zenith and
horizontal angle data from the SET3C.
Calculat~onscan be performed on the data so that the measurein the field
ments can be ver~f~ed
The stored data can be transmitted to a data processing system
SDR series
SDR series specifications
Power source:
Memory type:
RAM
ROM
Keyboard:
Display:
Baud rate:
Operating temperature range:
Weight:
"AA" (UM3) X 4
CMOS
32, 64 or 128K
64 K
33 keys
LCD
300, 600, 1200, 2400,
4800, 9600 bps
0 to 50°C (32 to 12Z°F!
450g ( 1 Ib)
24.4 INTERFACE l F l A FOR THE HP-41CV
Transfers data from the SET3C to the HP-41CV computer.
l F l A specifications
I F l A + HP-41CV
Input voltage:
6 V , 12V
Supplied from the SET3C
Input baud rate:
1200 bps
Operating temperature
range
0 to 45OC
We~ght
380 g
24.5 DIAGONAL EYEPIECE DE18
The diagonal eyepiece is convenient for steep observations and
in places where space around the instrument is limited.
Remove the eyepiece @ by loosening the mounting ring, and
screw in the diagonal eyepiece.
Setting up the DE18
24.6 SOLAR FILTER OF21OF2A
For observations t o the sun, and where glare is present. The
OF2 and OF2A (flip-up type) filters are mounted on the objective lens.
Distance measurement
Range: (When using Sokkisha standard reflecting prisms)
Average conditions:
(Slight haze, visibility about 20 km,
sunny periods, weak scintillation)
l-prism 1,900 m (6,300 f t )
3-prisms 2,600 m (8,600 f t )
Good conditions:
(No haze, visibility about 40 km,
overcast, no scintillation)
l-prism 2,200m (7,300ft)
3-prisms 3,000 m (9,900 f t )
Standard deviation:
k ( 5 m m + 3 p p m . D)
Display:
2 LCD dot matrix displays;
main display (48 characters) and
sub display (12 characters) on each
instrument face.
Maximum slope distance
9,999.999 m (32,808.33 fti.
Minimum display:
Fine measurement: 1 mm (0.01 f t )
Coarse measurement: 10mm (0.1f t )
Tracking measurement: 10 mm
(0.1 f t )
Measuring time:
.
1
1
Slope distance
Horizontal distance
Height difference
1
Coordinates
Fine
measurement
1
1
ev&+4
1
S
6.5s+
every 4 s
I
1
1
Tracking
measurement
1
; :ve
/
1
I
t . 5 S ; :ve
3.5s+
every 1.5 s
1
i.4s
3.5s+
every 0.9 s
1
1
1 s +every 0.6s
Remote elevation
Horizontal distance
Lbetween two points
1
Coarse
measurement
1
7s+
every 4 S
every l .5S
/ every 0.9 ]
S
(When tilt correction is not being applied, all measuring times
are 0.2sec less.)
Atmospheric correction:
l nput temperature
range:
l nput pressure range:
Prism constant
correct ion:
Earth-curvature and
refraction correction:
Audio target acquisition:
Signal source:
Light intensity control:
Input temperature and pressure for
automatic ppm calculation to nearest 1 ppm.
-30°C to +60°C (OCI0F selectablei
500mb to 1,400mb (mb!mmHg!
inchHg selectable)
-99 mm to +99 mm (in 1 mm steps)
Selectable ONIOFF
Selectable ONIOFF
Infrared LED
Automat~c
Angle measurement
Telescope
Length:
Aperture:
Magnification:
Resolving power:
I mage:
Field of view:
PJlinimum focus:
Reticle illumination:
177 mm (7 inches)
45 mm (1.8 inches)
30 X
3"
Erect
1'30' (26 m/1,000 m)
1.3 m (4.3i t )
Bright or dim settings
Horizontal and Vertical circles
Type:
Incremental with 0 index
Minimum display:
1" (0.2 mgon)
Accuracy
H:
v:
Automat~ccompensator
Type
Minimum display
Range of compensation
Display
Range
Standard deviation of mean of
measurement taken in positions I
and I1 (DIN 18723)
3" (1 mgon)
3" (Imgon)
Selectable ON!OFF
Liquid, 2-axis tilt sensor
1" (0.2 mgon)
+3'
- 1 ,999°59'55'r to 1,999O59'55"
(-1,999 999 gon to 1,999.999 gon)
- 92 -
Measuring mode
Horizontal angle:
Vertical angle
Measuring tlme
RightlLeft1Repetition of angles
Zenith O0 (Ogon) or
Horizontal O0 (Ogon) or
Horizontal 0°+900 ( 0 gon+100 gon)
Less than 0.5 s
Sensitivity of levels
Plate level.
Circular level.
Optical plummet
l mage
Magnif~catlon
Minimum focus
Data recording:
Data input/output:
Self-diagnostic function:
Power saving cut off:
Operating temperature:
Power source:
Working duration
Charging time
Instrument height:
Size:
Weight:
Erect
3X
0.1 m (0.3 f t )
Non-contact memory card, 32 Kb.
Asynchronous
serial,
RS-232C
compatible
Provided
30 minutes after operation
-20°C to +50°C (-4OF to +122OF)
Ni-Cd battery, BDC18 ( 6 V )
About 600 measurement at 25°C
(77OF), distance and angle measurement; 9 hours at 25"C, angle measurement only.
(About 4,000 measurements, distance and angle measurement; 70
hours at 25'C, angle measurement
only, with optional battery BDC12.)
12 to 15 hours, standard charger
CDCI 11CDC11D (depending on input voltages)
( 1 hour, optional charger CDC12A,
CDCl3, CDC15.)
236 mm
181 (W) X 177 (D) x371 ( H ) mm
(Without handle: H: 330 mm)
7.5 kg (w/internal battery and memory card)
26. MAINTENANCE
1) Wipe off moisture completely if the instrument gets wet
during survey work.
2) Always clean the instrument before returning it t o the case.
The lens requires special care. Dust i t off with the lens
brush first, t o remove minute particles. Then, after providing a little condensation by breathing on the lens,
wipe i t with a soft clean cloth or lens tissue.
3) Store the SET3C in a dry room where the temperature remains
fairly constant.
4) I f the battery is discharged excessively, i t s life may be
shortened. Store i t in a charged state.
5) Check the tripod for loose f i t and loose screws.
The specifications and general appearance of the instrument may
be altered at any time and may differ from those appearing in
catalogues and this operator's manual.