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Before installing and operating this product,
please read this manual thoroughly.

ENGLISH

Motorized 20X Zoom Lens SLA-12240

 

User Guide

SAMSUNG AUTO  IRIS LENS FOR CCD CAMERA OPERATING 
INSTRUCTIONS

The SLA-12240 is a CCD camera lens with automatic iris function, electronically 
controlled by DC signals, and optical 20X zoom. Distant objects can be zoomed in and 
focused for clear images with a simple operation of a switch. The photometric system, 
designed to provide continuous adjustable readings between peak and average values, 
provides optimum image quality even in conditions where the contrast of the object 
changes in a wide range. When power is cut off, the iris is automatically closed to 
protect the product from strong light.

C

ONTENTS

* Specifications are subject to change without prior notice.

Samsung Techwin cares for the environment at all product manufacturing 
stages to preserve the environment, and is taking a number of steps to 
provide customers with more environment-friendly products. The Eco mark 
represents Samsung Techwin

s will to create environment-friendly 

products, and indicates that the product satisfies the EU RoHS Directive.

Product appearance 

3

Lens Connection  

3

Focusing of Zoom Lens 

4

Circuit Diagram 

4

Specification 

5

Dimension 

7

1.   Product appearance

1) Mount the lens turing it clodkwise onto the camera mount.
2) Turn the lens clockwise until it stops.
3)  As lens mount is constructed bo be rotatable, please adjust the lens attitude,  

if necessary. Turn the lens counterclockwise slowly till it gets the best attitude.

4) Connect the cable correctely

2.   Lens Connection 

3

Motorized 20X Zoom Lens

4

4.   Circuit Diagram

3.   Focusing of Zoom Lens

1) Move the zoom to the extremel Tele position.
2) Operate the Focus switch to focus on the object.
3)  Move the zoom to extremely Wide position, and make sure to find the 

clearness of the image.

4)  Again move the zoom to get the view angle of the desired object. 

*  Even after the process of (1) to (3), if the image is not clear, it may be 

necessary to adjust the Flange back of the camera.

Motorized 20X Zoom Lens

5

Motorized 20X Zoom Lens

6

Motorized 20X Zoom Lens

7

5.   Specification

Motorized 20X Zoom Lens

DECLARATION OF CONFORMITY

Application of Council Directive(s) 

89 / 336 / EEC

Manufacturer's Name  

SAMSUNG TECHWIN CO., LTD

Manufacturer's Address 

SAMSUNG TECHWIN CO., LTD

 

42, SUNGJU-DONG CHANGWON-CITY,

 

KYUNGNAM, KOREA, 641-716

European Representative Name
European Representative Address
Equipment Type/Environment  

Motorized 20X Zoom Lens

Model Name  

SLA-12240

Beginning Serial NO.  

J202001

Year of Manufacture  

2009. 9. 1

Conformance to  

EN 55022 : 1988 Class A

 

EN 501304 : 1995 / AI : 1988

 
 

We, the undersigned, hereby declare that the equipment specified above conforms  
to the above Directive(s).

Manufacturer   SAMSUNG TECHWIN CO., LTD  

Legal Representative in Europe 

Signature  

 

Signature 

Full Name  

BONJENG JU 

Full Name  

Position  

QUALITY CONTROL MANAGER  

Position  

Place  

CHANGWON, KOREA 

Place 

Date  

2009. 9. 1 

Date 

SLA-12240

CCD

1/2“

Iris Type

Auto Iris(DC)

Object Distance

2.8m~º

Zoom

20X

Mount

C-Mount

Focal Lenght

12~240mm/0.47“~9.45“

Max. Aperture Ratio

F1.6

Angle of 

View

Diagonal

38.9º~1.9º

Horizontal

30.8º~1.6º

Vertical

23º~1.2º

Operation

Iris

F1.6~F720

Focus

1.2m~∞

Zoom

12~240mm/0.47“~9.45“

Control

Iris

3.3V

Focus

6~12V DC

Zoom

6~12V DC

Back Focal Length

19.82mm/0.78"

Flange Back Length

17.526mm/0.69"

Preset 

Built-in

Input Signal

DC signal

Sensitivity Adjustment

0.5V(p-p)~1.0V(p-p) (Video Signal)

Operating Temperature

-10ºC~+50ºC

Dimensions(WxHxD)

116x135x223.5mm 
(4.57"x5.31"x8.8")

Weight

2.6Kg(5.73 Ib)

6.   Dimension

116

24.5

169.5

19.5

10

4

400±25

130.8

223.5 (Fixed)

17.526

250±10

14-Core Cable

4-Core Shiled Cable

for Zooming& Focusing

for Auto-Iris Control

Ø36

1/4-20 UNC

Name Plate

Aventurlne Black

Serial Number

Trlpod Seat

Ø103.2

135

74.1

2.9

Ø100

Ø95,

 P=1

Ø32

1-32UN-2A

Ø52

Ø73.5

R58

MEMO

CCTV ZOOM LENZ

SLA-12240 12-240mm 1:1.6

Made in Japan

Auto Iris Jack

Cable 4 Lines Adjusting Zoom and Focus

Lens Body

R1

M3 Iris

14-Core Cable

4-Core

Shield Cable

Shield

Red

C.N.

E8-760P-100

E4-191J

Zoom

Focus

Red

Tele

White

Pot. Supply
Focus Wiper

Pot. Return

Zoom Wiper

Driving Coil

Damping Coil

Near

6

4

2

5

7
3
8

1

3
4

2
1

Green

White

Blue

Orange

Sky blue
Gray

Pink

White
Green

Red
Black

R2
R3

R4

M1

Zoom

C.B.

M2

Focus

Far

VR1

VR2

Near

Wide

Tele

C.B. : Connection Board

● 

LINE BOUNDS

① 

Black  : Damping (-)

② 

Red  : Damping (+)

③ 

White : Drive (+)

④ 

Green : Drive (-)

R1, R2, R3, R4

1kΩ ± 1% 0.1W

VR1, VR2

5kΩ ± 15% 0.2W

•  SAMSUNG TECHWIN EUROPE LTD. 

Samsung House, 1000 Hillswood Drive, Hillswood Business 

Park Chertsey, Surrey, UNITED KINGDOM KT16 OPS

TEL : +44-1932-45-5300    FAX : +44-1932-45-5325

www.samsungtechwin.com
www.samsungsecurity.com

•  SAMSUNG TECHWIN CO., LTD.

145-3, Sangdaewon 1-dong, Jungwon-gu, Seongnam-si Gyeonggi-do, Korea, 462-703 

TEL  : +82-31-740-8151~8    FAX : +82-31-740-8145

•  SAMSUNG TECHWIN AMERICA Inc.

1480 Charles Willard St, Carson, CA 90746, UNITED STATES 

Tol Free : +1-877-213-1222    FAX : +1-310-632-2195 

www.samsungcctvusa.com

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