This is description of this part:
Carl Zeiss Photomicroscope III RS power supply cable with 12 pin plug, 2x6 flat contacts, from microscope base
This is one of two cables coming out of the base of the Zeiss Photomicroscope III microscope. The following cables come out of it:
- with a 12 pin plug (2x6)
- with a 22 pin plug (2x10 + 2)
The cable presented here ends with a 12 pin plug, that is 6 rows of two flat contacts each. Marking on the plug: "Siemens DIN41622 VG95322 A12".
The cable was tested before being removed from a working microscope. The plug is fully functional, its plastic housing is neither broken nor crumbled, and all contacts are straight. Attaching / soldering on the base side has to be taken care of on your own.
Several names are used for this microscope model, among others:
- Carl Zeiss Photomicroscope III
- Carl Zeiss Phomi III
- Carl Zeiss PM III
- Zeiss Photomicroscope III RS
- Zeiss Phomi 3
- Zeiss PM3 RS
Replacing this cable can solve, among others, the following problems:
- when the microscope has a cut off cable, which is common when it comes from an institution that scraps electrical equipment this way
- when the microscope has a cable with a plug whose housing is broken, cracked or chipped
- when the microscope has a cable ending in a plug with broken off flat contacts
- when the microscope has a cable in which the plug has a damaged latch
A new plug of this type can be bought today. It is the DIN 41622 standard, a two row arrangement of 3.0 x 1 mm blade contacts, 12 poles - produced continuously for decades and offered today by Telegärtner, Binder, MPE and EVG among others. At Telegärtner the 12 pole male connector carries the number 100023261, and the matching female connector the number 100023250. One has to keep in mind, however, that this is only the contact insert itself: the cable housing (metal or plastic) together with the mounting trough is bought separately, the guide pins that also serve as coding are bought separately, the cable of the right cross section is bought separately, and all twelve contacts have to be soldered. Some users will appreciate owning an original cable with a period plug whose coding matches their microscope, while others will be glad that I have given the designations of the new equivalents and can go their own way.
What is this part needed for?
- if you own a microscope without this cable, or with a damaged cable or plug
- a list of several cases in which replacing the cable may be necessary can be found in the description
