Bosch LTC 3774-30 Installation Instructions

DC iris vari-focal lenses

Installation instructionsEN

Manuale d’installationFR

Installationshandbuch

Manual de instalación

InstallatiehandleidingNL

Manuale di installazioneIT

Bosch Sicherheitssysteme GmbH Ludwig-Bölkow-Allee 85521 Ottobrunn Germany www.bosch-sicherheitssysteme.de

3122 475 20383 04-01

Bosch Security Systems B.V. P.O. Box 80002 5600 JB Eindhoven The Netherlands www.boschsecuritysystems.com

DC iris Varifocal lenses | Instructions for use EN

Safety

Warning

: Do not use the lens to look at the sun. It

may cause loss of sight.

Attention: Do not direct the lens into the sun. It may

cause fire.

DC iris Varifocal lens

The lens features a DC controlled iris and manual adjustment of focal length and focus. This lens also has an iris auto-close function to protect image sensors from extreme highlights when power is switched off.

Connection:

The 4-pin connector is pre-wired as follows:

Pin 1: Damping coil Pin 2: Damping coil + Pin 3: Driving coil + Pin 4: Driving coil -

Note: Some lens types with very small F-number, e.g.

F1.0 are supplied with a compensation filter set. Use the filter set in combination with B/W cameras. Mount the glass filter on the rear of the lens and put the spacer between camera and lens.

Bosch Security Systems | 2004-01

Installation

• Screw the lens into the camera until it completely stops; the lens chassis may slip in the mount before it stops.

• Once the lens is screwed in completely rotate the lens chassis anti-clockwise to suit the best set-up position. While rotating the lens chassis it slips in the mount.

• Plug the lens cable into the camera's lens socket.

• If necessary adjust the lens controls on the camera according to instructions provided.

• Loosen the focus and zoom locking screws.

• First set the zoom ring to wide and turn the focus ring until the image is sharp. Readjust back focus if needed.

• To enlarge the image turn the zoom ring towards tele and focus the image again.

• When the correct positions for zoom and focus are found, tighten the locking screws again.

Cleaning the lens

• Remove dust on the lens using a blower or soft brush. Avoid touching the lens surface.

• To remove finger prints or oil stains on the lens surface, use lens cleaning paper or a clean cotton cloth with a little cleaning liquid. Then wipe off the stains lightly starting from the center of the lens surface. Wipe the lens body with a silicon cloth. Avoid using any organic solvents such as thinner or benzene.