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Kern OZM 902 stereo microscope set, binocular, telescopic arm with base plate, zoom 0.7x to 4.5x, LED ring light

Product information "Kern OZM 902 stereo microscope set, binocular, telescopic arm with base plate, zoom 0.7x to 4.5x, LED ring light"

The Kern OZM-9 are pre-configured stereo microscope sets comprising the stereo zoom head from the OZM-5 series, a universal stand, a holder, an LED ring light and a dust cover. There are twelve basic models, each with an EU plug (no suffix) and a UK plug (suffix UK), making a total of 24 variants. All sets feature a zoom range of 0.7x to 4.5x, HSWF 10x eyepieces and a 4.5 W LED in incident light. They differ in three respects: the stand, the head (binocular or trinocular) and the mains plug (EU or UK). The model number reveals this: the first two digits after ‘OZM’ denote the stand (90, 91, 92, 93, 95, 98), the third digit denotes the head (2 for binocular, 3 for trinocular), and the suffix UK indicates that a UK adapter is included in the scope of delivery. According to Kern, the set eliminates the need to configure the individual components.

An overview of six stands

The 90 and 91 series have a telescopic arm with a base plate; at 26 kg, the 91 series is significantly heavier than the 90 series, which weighs 17 kg. The 92 and 93 series have a ball-bearing double arm with a base plate (22 kg and 28 kg). The 95 series has an articulating arm with a clamp and weighs 11 kg; the 98 series has a spring-loaded articulating arm with a clamp and weighs 6 kg. The clamps on the 95 and 98 series allow the microscope to be attached to the edge of a table, while the plate on the other series lets it stand without fixing. The weight depends on the stand. All dimensions and weights are listed in the model table.

Head and optics

The head features a Greenough system. The zoom range is continuously adjustable from 0.7x to 4.5x with a ratio of 6.4:1; when used with the eyepieces, this gives a range of 7x to 45x. The field of view ranges from 5.1 to 32.8 mm, the working distance is 110 mm, and the maximum specimen height is 130 mm. The HSWF 10x eyepieces have a 23 mm field of view, a high eye point and an anti-fungus coating. The tube is inclined at 45°, the interpupillary distance ranges from 52 to 76 mm, and the dioptre adjustment operates on both sides. The trinocular sets (third digit 3) feature a camera output; the beam splitter ratio is 0:100 according to the data sheet. A C-Mount adapter is required to connect a camera; Kern lists the microscope camera adapters OZB-A5701 (0.3x), OZB-A5702 (0.5x), OZB-A5703 and OZB-A5704 (1x each), as well as the cameras ODC 825, ODC 832, ODC 852 and ODC 854.

Ring light, power supply and mains plug

The incident light is a dimmable 4.5 W LED ring light. The set has no transmitted light. The power supply is built-in and operates at 100 to 240 V. According to Kern, the UK adapter is included in the scope of delivery for sets ending in UK. For sets with an EU plug (without UK), adapters for various countries are optional, according to the data sheet. All sets may be stored at temperatures between -5 °C and 40 °C.

Typical applications

  • Electronics manufacturing: LCD and LED electronics, semiconductor technology, assembly and repair
  • Quality control: large circuit boards and components under the microscope
  • Zoology and botany, tissue preparation, dissection
  • Detection of parasites, in vitro fertilisation
  • Training centres and workshops

Models at a glance

ModelHeadStandNet weightUniversal stand mounting (Ø)Mains plugBeam splitter ratio
OZM 902BinocularTelescopic arm with plateapprox. 17 kg32 mmEU (OZM 902) or UK (OZM 902UK)not applicable
OZM 903TrinocularTelescopic arm with plateapprox. 17 kg32 mmEU (OZM 903) or UK (OZM 903UK)0:100
OZM 912BinocularTelescopic arm with plateapprox. 26 kg37 mmEU (OZM 912) or UK (OZM 912UK)not applicable
OZM 913TrinocularTelescopic arm with plateapprox. 26 kg37 mmEU (OZM 913) or UK (OZM 913UK)0:100
OZM 922BinocularBall-bearing double arm with plateapprox. 22 kg32 mmEU (OZM 922) or UK (OZM 922UK)not applicable
OZM 923TrinocularBall-bearing double arm with plateapprox. 22 kg32 mmEU (OZM 923) or UK (OZM 923UK)0:100
OZM 932BinocularBall-bearing double arm with plateapprox. 28 kg37 mmEU (OZM 932) or UK (OZM 932UK)not applicable
OZM 933TrinocularBall-bearing double arm with plateapprox. 28 kg37 mmEU (OZM 933) or UK (OZM 933UK)0:100
OZM 952BinocularArticulating arm with clampapprox. 11 kg37 mmEU (OZM 952) or UK (OZM 952UK)not applicable
OZM 953TrinocularArticulating arm with clampapprox. 11 kg37 mmEU (OZM 953) or UK (OZM 953UK)0:100
OZM 982BinocularSpring-loaded articulating arm with clampapprox. 6 kgnot applicableEU (OZM 982) or UK (OZM 982UK)not applicable
OZM 983TrinocularSpring-loaded articulating arm with clampapprox. 6 kgnot applicableEU (OZM 983) or UK (OZM 983UK)0:100

Technical details

These values apply to all sets. Any differing values are listed in the model table.

Optical systemGreenough, bright field
TubeInclined at 45°, interpupillary distance 52 to 76 mm, dioptre adjustment on both sides
EyepieceHSWF 10x, field of view 23 mm, mounting diameter 30 mm, high eye point, anti-fungus coating
Zoom0.7x to 4.5x continuously variable, ratio 6.4:1
Total magnification7x to 45x
Field of view5.1 mm to 32.8 mm
Working distance110 mm
Maximum sample height130 mm
IlluminationLED ring light in incident light, 4.5 W, dimmable
Mounting of microscope head (Ø)76 mm
Power supplyBuilt-in power supply, 100 to 240 V; for models ending in UK, a UK adapter is included in the scope of delivery
Storage temperature-5 °C to 40 °C
LabellingCE
Warranty (manufacturer)36 months according to Kern, excluding wear parts

Scope of delivery

  • Stereo zoom head (binocular or trinocular) with HSWF 10x eyepieces
  • Universal stand with holder; depending on the model, a telescopic arm, double arm, articulating arm or spring-loaded articulating arm
  • LED ring light
  • Dust cover
  • For models ending in UK: UK adapter

Warranty

According to Kern & Sohn, these sets come with a 3-year warranty. Kern grants 3 years on products with a list price of €500 or more and 2 years on products below that and on components; wear parts such as batteries and rechargeable batteries are excluded. Warranty repairs are carried out by Kern or by a Kern dealer.

Downloads

Regulatory information

As electrical devices, the stereo microscope sets fall under the ElektroG. The manufacturer Kern & Sohn GmbH is registered under the WEEE registration number DE 80821200. How to return old appliances is described on the page Environment and disposal.

Individual requirements and procurement service

Eyepieces OZB-A5504 (SWF 15x), OZB-A5505 (SWF 20x), OZB-A5506 (SWF 30x), OZB-A5512 (HSWF 10x with 0.1 mm scale), OZB-A5513 (SWF 15x with 0.05 mm scale) and OZB-A5514 (SWF 20x with 0.05 mm scale), the attachment lenses OZB-A5611 (0.37x), OZB-A5612 (0.5x), OZB-A5613 (0.7x), OZB-A5615 (1.5x) and OZB-A5616 (2x), the solder protection lens OZB-A5614, the stereo microscope stands OZB-A6301, OZB-A6302 and OZB-A6303, the OCS-A1101 cleaning spray, the OCS 901 cleaning kit and the YKA-02 travel adapter (according to the brochure, for models with an EU plug) are also available. Enquiries are handled via our procurement service.

Design: OZM 902 · Binocular
Plug type: EU