Futech EAGLE 32 User manual

USER
MANUAL
072.32 EAGLE 32
EN ENGLISH
Manual
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Check the back cover

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16
OVERVIEW

3
HOUSING
01 Spheric base plate
02 Horizontal turntable
03 Eyepiece
04 Objective lens
05 Focusing knob
06 Horizontal drive screw
07 Levelling screw
08 Open eyepiece
09 Bubble level mirror
10 Bubble level
11 Adjusting screws for bubble level
12 Field of view
13 TOP stadia line
14 BOTTOM stadia line
15 Crosshairs
16 Plumb bob
SAFETY
Please read the safety instructions provided as
separate booklet with the device.
FIRST TIME USAGE
Remove all protection foils.
PREPARE THE MEASUREMENT
IMPORTANT
Set up the Eagle 32 on a tripod to ensure its
stability.
We recommend a tripod with dome head for
maximum working comfort.
SET UP
Set up your tripod at the desired height. We
recommend setting up the optical viewer at eye
level. Push the legs of the tripod rmly into the
ground and make sure the tripod is as levelled
and stable as possible.
Securely x the optical level on the tripod with
the 5/8” thread in the Spheric base plate [01].
Tighten the locking screw of the tripod.

4
LEVEL THE DEVICE
Level the Eagle 32 by adjusting the Levelling
screws [07] so that the air bubble is positioned in
the center of the bubble level [10].
A B
C
Simultaneously turn levelling screws A and B in
oposite directions until the bubble is bisected by
the centering line between A and B.
Turn levelling screw C until the bubble is perfect-
ly centered.
Turn the Eagle32 180° and check if the bubble
remains centered.
·If the bubble remain centered, you can pro-
ceed
·If the bubble is no longer centered, the Bubble
level has to be adjusted. (See further in this
manual)
FOCUSING
Aim the telescope towards a light-colored/white
background. Turn the eyepiece [03] until the
crosshairs are in sharp focus.
Aim the telescope at the levelling staff. Turn the
focusing knob [05] until the scale on the levelling
staff appears clear and sharp.
Use the horizontal drive screw [06] to preci-
sion-aim at the levelling staff.

5
When the telescope is correctly focused, the
crosshairs and the image of the staff must remain
aligned when moving your eye behind the
eyepiece.
MEASURING
MEASURING THE HEIGHT
H
H =127cm 1.27m
· Prepare the measurement (see earlier)
· Read the height from the middle line of the
crosshairs [15]
In this example:
H = 127cm or 1m 27cm.
MEASURING THE DIFFERENCE IN HEIGHT
2 2
h
Ha = 1.735
A B
Hb = 1.224
Ha
Hb
· Prepare the measurement (see earlier)
· For the best accuracy, position the optical level
in the middle of both measuring points.
· Read the height from the middle line of the
crosshairs [15] from levelling staff A.
In this example:
Ha = 1.735 m
· Read the height from the middle line of the
crosshairs [15] from levelling staff B.
In this example:
Hb = 1.224 m
· Calculate the difference in height by substract-
ing the lowewt result from the heighest result.
In this example:
h = Ha — Hb = 1.735m — 1.224m
= 0.511m or 51.1cm.

6
MEASURING THE DISTANCE
(cm)
(m)
(cm)
this example:
6.2
cm
= (0.932 - 0.87) = 0.062
6.2 m
· Prepare the measurement (see earlier)
· Read the heights at the TOP stadia line [13] and
the BOTTOM stadia line [14] and calculate the
difference between the two values
In this example:
l(cm) = 0.932m (TOP) — 0.87m (BOTTOM)
= 0.062m (= 6.2cm)
· Calculate the distance by multiplying the calcu-
lated difference by 100.
In this example:
l(m) = 0.062m x 100 = 6.2m
MEASURE ANGLES
0
10
20
350
340
110
120
20
100
90
NOTE
If your tripod has a hook in the fl exing screw, we
recommand to pend the plumb bob [16] on the
hook. Move your tripod until the your plumb
bob is exactly above the corner.
· Prepare the measurement (see earlier)
· Turn the horizontal circle [02] to the 0.
· Aim the telescope to towards the second point.
· Read the angle from the horizontal circle [02].
REMARK
You can use the horizontal turn table [02] to
measure existing corners. We don’t recommend
to use it to layout new corners.

7
ACCURACY CHECK & ADJUSTING
ADJUSTING THE CIRCULAR BUBBLE LEVEL
· Set up a tripod with the telescope and align it
by using the levelling screws [07]. The bubble
in the bubble level [10] must be centered.
· Turn the telescope 180° and check if the bub-
ble in the bubble level [10] is still centered.


180°
2.
1.
1. The bubble is still centered:
The bubble level [10] is correctly adjusted
2. The bubble is no longer centered:
The bubble level [10] needs to be adjusted
levelling screws
1/2 with 1/2 with
bubble screws
[07] [11]
– Turn the Levelling screws [07] until the
error is half corrected.
– Use a hex key to turn the adjusting
screws for bubble level [11] until bubble
level is centered.
– Again, turn the device 180° and check
the bubble level [11]
– Depending on the severity of the error,
repeat these steps if necessary.
CHECKING THE HORIZONTAL LINE
NOTE
Make sure you check the circular bubble level
rst if this is set correctly.
· Set up the telescope on a tripod halfway
between two measuring points. The distance
between the two measuring points should be
approx. 30m. The bubble in the bubble level
[10] must be centered.

8
· Read the height from the measuring staff A
for example:
a1 = 1.924m
· Turn the measuring tool and read the height
from measuring staff B
for example:
b1 = 1.712
· Calculate the difference in height between A
and B
in this example:
h1 = a1 – b1 = 1.924m – 1.712m = 0.212m
· Reposition the measuring tool, 1m away from
measuring staff A
1m
· Read the new height from measuring staff A
for example:
a2 = 1.696m
In this example:
Since “h1 = a1 – b1 = 0.212m”, the reading of b2
needs to be:
b2 = a2 – h1 = 1.696m – 0.212m = 1.484m (with
±3mm tolerance).
· Read the new height from measuring staff B.
for example (1):
b2’ = 1.485m
In this example:
b2 = b2’ (with ±3mm tolerance)
– If b2 = b2’:
Crosshairs [12] should not be adjusted.
for example (2):
b2’ = 1.497m
In this example:
b2 ≠ b2’ (with ±3mm tolerance)
– If b2 ≠ b2’:
Crosshairs [12] needs to be adjusted.

9
ADJUSTING THE CROSSHAIRS
NOTE
This steps follows only when the crosshairs [12]
needs to be adjusted after checking the hori-
zontal line (previous section of this manual).
Recheck the horizontal line after adjusting.
adjust screws
· Remove the cover from the eyepiece [3].
· Aim the telescope at measuring staff B and turn
the knob to adjust the crosshairs [12] until the
difference between the height difference of the
horizontal line test and the calculated height
difference is less than the tolerance of 3mm.
· Replace the cover of the eyepiece [3].
STORAGE AND TRANSPORT
In order to protect all parts and not lose its accu-
racy, care must be taken.
Do not stow the device away when it is wet. Allow
it to dry completely before stowing it away.
After use, the instrument should be cleaned and
kept in its case.
Use only soft brush or soft lint-free cloth for the
body and lens tissue to wipe lenses. Do not use
abrasive cleaners or solvents.
Comply with the temperature/humidity limits for
storing your equipment.
There is a bag of drier (silica) in the case. If this is
lost or has lost its efcency, replace this by a new
one.
Avoid shocks, vibrations and extreme heat.
Check the accuracy of your equipment before
using it after a long period of storage or trans-
portation.

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TECHNICAL SPECIFICATIONS
072.32
EAGLE 32
Magnication 32X
Accuracy ± 1mm at 1km, double run levelling
Levelling accuracy ± 0.3”
Accuracy of bubble level 8’ / 2mm
Compensator working range ± 15’
Compensator Air-damping compensation system
Horizontal circle protector 360°
Field of view 1°20’
Minimum viewing distance 40cm
Stadia multiplication x100
Affective aperture lens size 36mm
Tripod thread 5/8”
IP rating IP54
Instrument size 188 x 132 x 140 mm
Net. weight 1.45 kg
Operating temperature –20 °C ~ … ~ +50°C
Storage temperature –30 °C ~ … ~ +60°C

11
NOTES

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