Atdec Spacedec Acrobat Articulated Arm SD-AT-DK-S Leaflet

Page of 2
Component Checklist
Installation Instructions
SPACEDEC ACROBAT
ARTICULATED ARM 
Single Arm
Articulated Arm 
Assembly (x1)
Base Casting (x1)
Cable Wrap 
Applicator (x1)
Top Cap Tool (x1)
2.5mm Allen 
Key (x1)
16mm Cable 
Wrap (x1)
M10 Interscrew (x1)
Cable Clip (x4)
M6x12mm 
Countersunk
Screw (x2)
Extension 
Clip (x4)
Desk Clamp Box 
Desk Clamp 
Bracket (x1)
M8 Desk Clamp 
Screw (x2)
Pressure 
Plate (x2)
Component Checklist
A
Check you have received all parts against the Component Checklist above.
Bits Box
5mm Allen 
Key (x1)
Assembling the Arm
B
Adjusting the Display
H
As LCD Manufacturers are constantly releasing new monitor models, Atdec does not accept responsibility if the mounting hole pattern does not comply with the 
international VESA standards. Due to continuing product development, the manufacturer reserves the right to alter specifications without notice. 
Published: 12.04.07
Installation Complete
14 Gauge Self 
Tapping Screw (x2)
B.1. Disassemble the Tube Assembly
In order to attach the Articulated Arm to the 
tube assembly you will need to remove the 
Top Cap and Threaded Rod as shown:
B.2. Assemble the Articulated Arm
Assemble the Articulated Arm as shown:
Top Cap and
Threaded Rod
Arm Assembly
Internal Tube Post
Spacer 
Tube
Top Cap and 
Threaded Rod
Internal 
Tube Post 
Spacer 
Tube
Collar
Mounting Fasteners
M4x10mm 
Screw (x4)
M4x12mm 
Screw (x4)
M4x16mm 
Screw (x4)
Tube Assembly (x1)
Threaded Rod 
and Top Cap (x1)
Collar
Inner Tube Post
Spacer Tube
Washer (x1)
H.1. Adjusting the Ball Joint Resistance
The Acrobat Articulated Arm comes factory set to support 6kg displays. Adjust the arm to suit the weight of your 
display as shown in the following steps: 
Depending on the weight of the monitor, it may 
be necessary to make adjustments to the Ball Joint 
Mechanism.  If the monitor doesn’t hold its position or 
is too resistant, adjust the four tension screws located 
around the Ball Joint (see diagram on the right) using 
the supplied 2.5mm Allen Key.
Check the display, and then adjust again if necessary.
NOTE: Be sure to adjust screws evenly.
Tighten
Loosen
Tension 
Screws (x4)
Ball Joint
2.5mm 
Allen Key
H.2. Adjusting the Pivot Head Resistance
It is possible to control the amount of resistance in the 
Pivot Head to suit your display. 
To increase the resistant of the Pivot Head to suit heavier 
displays, use the 5mm Allen Key supplied in the Desk 
Clamp Box to tighten the interscrew in a clockwise 
direction. 
To decrease the resistance of the Pivot Head to suit 
lighter displays, loosen the interscrew in an
anti-clockwise direction.
NOTE: It is recommended the Pivot Head be left 
at the factory setting for best performance. 
Pivot Head
Interscrew
5mm Allen Key
Loosen
Tighten
H.3. Adjusting the Articulated Arm/Gas Strut Resistance
3kg
Monitor
9kg
Monitor
Arm
Raise Gas 
Strut to suit 
lighter display
5mm 
Allen key
Gas Strut
Lighter
Heavier
Lower Gas Strut to 
suit heavier display
4mm Allen 
Key (x1)
Ergonomic Guidelines
G
H.3.1.
 Depending on the weight of the monitor, it 
may be necessary to adjust the arm. This can be 
done by using the 5mm Allen Key supplied in the 
Desk Clamp Box.
H.3.2. 
If the arm tends to automatically rise or fall 
when the display is attached, it will be necessary 
to make small adjustments to the gas strut. (see 
diagram on the right)
H.3.3. 
If the arm tends to rise, the gas strut 
position should be raised. If the arm tends to fall, 
the gas strut position should be lowered.
B
Ergonomists recommend that the optimal position of your screen should be slightly below eye level. 
When looking at the screen’s centre the user should have a downward visual angle of approximately 
10°-20°. As a guide, the height (h) of your display should approximately be as follows:
Tall Male (Max): 560mm (22”) 
Tall Female (Max): 520mm (20
1
/
2
”)
Short Male (Min): 368mm (14
1
/
2
”) 
Short Female (Min): 356mm (14”)
For visual comfort, a viewing distance (d) between 500mm (19
1
/
2
”) to 750mm (29
1
/
2
”) is 
recommended.
Angular adjustments to reduce reflection on your monitor should range between 5° forward tilt to 15° 
backward tilt.
Desk Clamp
15°
HORIZONTAL SIGHT LINE (d)
CENTR
E OF
 SCREEN
10°-20° 
Recommended Viewing Distance / Height
Recommended Mounting Position
50mm (2”)
When mounting the Spacedec Acrobat Articulated Arm, ensure the correct focal distance can be 
achieved for ultimate visual comfort (Refer to Recommended Viewing Distance / Height below) 
Desk Clamp 
Bolt Through
(h)
15mm Hole (
9/16
”)
Base Casting