Firma:              Amersham

Modell:                         Image Master

Kommentar:     Dokumente engl.

Gel Documentation System Function and Description

The ImageMaster VDS video documentation system is designed to quickly and accurately document electrophoresis results. The basic system, which includes a 312-nm ultraviolet (UV) transilluminator sample tray and an orange lens filter, is intended for documentation of ethidium bromide-stained agarose and polyacrylamide gels. Optional accessories such as a white light sample tray and a blue or yellow lens filter allow documentation of Coomassie blue and silver-stained gels as well as membranes, films, blots, and autoradiographs. The sample area is 21x25 cm. This accommodates the developed area of one full size Multiphor gel, 8 mini-gels, or up to 15 PhastGel gels.

The imaging system comprises a highly sensitive charged coupled device (CCD) camera connected to a monitor, which allows viewing of the image and manipulation of camera controls before the image is printed. This imaging system is contained in a free-standing "dark room" that includes an UV transilluminator as well as a white light source. Once the image is optimized, it can be printed by the integral thermal printer. Two grades of film are available: the higher grade Super VDS film is thermally activated and fixed, and the regular VDS film is thermally activated and UV light fixed. Both use a polymer emulsion technology that produces a sharp image on tough plastic and both have an image life of seven years under the proper storage conditions.

If the optional LISCAP image capture software and PC board are installed on your PC computer, the digitized image can be transferred to your PC. The digital image is then available for analysis using, for example, the ImageMaster Software, or for editing, annotating, or output to a printing device used for publication.

Specifications

ImageMaster VDS system

Voltage                                              110-120 V~, 60 Hz (US model)

                                                         fuses (2): F 4A, 250V

                                                         220-240 V~, 50 Hz (European model)

                                                         fuses (2): F 2.5A, 250V

                                                         100 V~, 50/60 Hz (Japanese model)

                                                         fuses (2): F 4A, 250V

Power consumption                         300 VA Max.

Operating environment                     10-40 °C

                                                         Relative Humidity: 0-90% noncondensing

                                                         Indoor use, pollution degree 2,

                                                         Overvoltage category 11

                                                         Non Operating Environment:

                                                         -10-60 °C, relative humidity 95% max.

System timer                                    Lamps shut off after 10 minutes of inactivity. Open and        close either door to reactivate.

I/O ports                                            Composite video signal, 1.0 Vpp at 75 ohm, BNC     connector

                                                         25-pin D-type male parallel communication port

Dimensions                                      645 mm (H) x 528 mm (W) x 390 mm (D)

Video System

Number of pixels                               795 (h) x 596 (v) (US and Japanese models)

                                                         811 (h) x 508 (v) (European model)

System type                                      NTSC (US and Japanese models)

                                                         PAL (European model)

Scanning system                              2:1 Interlace

Minimum illumination                        0.2 Lux at f/1.2 & shutter speed 1/50;

                                                         0.0004 Lux at f/1.2 with 500 fields integration

Electronic shutter                             1/100 sec PAL or 1/120 sec NTSC up to 10 sec.

Gain control                                      Auto black restoration or manual selectable

Resolution                                         More than 570 horizontal TV lines

Signal to noise ratio                          More than 46db with AGC off

Gamma correction                           0.45 or 1.0, selectable

Frame store                                      STILL function button with field/frame selection

Video output                                      Composite video signal,1.0 V pp at 75 ohm

Power supply                                    85 to 264 V~ at 47Hz to 440Hz, automatic

Safety                                                IEC601/UL544 approved

Power consumption                         12 W

Printer

Recording system                            Thermal

Fuji thermal film                                VDS Film, 101 mm (W) x 14 m (L)

                                                         Super VDS Film, 101 mm (W) x 14 m (L)

                                                         Print cycle time: 17-20 s

Number of prints                               170 (standard size, portrait, 1:1),

                                                         140 (long size, landscape, 4:3)

Resolution                                         Pixels 6.73 dots/mm, elements 13.46 dots/mm

Gray levels                                        Selectable 256, 64, 32 or 16

Imaging mode                                   Selectable positive or negative mode

Aspect ratio                                       Selectable 1:1 or 4:3

Image memory                                 One frame image memory incorporated

Transilluminator sample trays

Analytical area                                  18 x 23 cm

Working area                                    21 x 25 cm

Transilluminator lamps

                                                         UV lamps: 8 W, 312 nm, 4 lamps

                                                         White light lamps, 8 W, 5 lamps

PC options

Image capture board                        8-bit board to allow transfer of the digital camera image       data to an IBM PC type computer

LISCAP image

capture software                               Data image capture software for the PC operating under     Windows (image capture board required).

LISCAP NT Driver                             Drivers for the Image capture kit under Windows NT 4.0      only.

Image capture kit                              Data capture board and LISCAP software

ImageMaster TotalLab                      Data capture and analysis software for the PC operating     under Windows 95, 98 and NT 4.0 (image capture board                                                          required).

Product Certifications

Safety                                                EN60950

Emissions                                         EN55022 (or equivalent documented standard)

Immunity                                           IEC 801-2, IEC 801-3, IEC 801-4

Marking                                             CE mark