Perkin Elmer

Lambda 850 UV-VIS

Precision Optics Perkin Elmer Lambda family

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The Perkin Elmer Lambda 850 UV-VIS is a double beam, double monochromator, ratio recording UV/Vis spectrophotometer. The Perkin Elmer Lambda 850 UV-VIS has a wavelength range of 175 nm to 900 nm. The Perkin Elmer Lambda 850 UV-VIS uses pre-aligned tungsten-halogen and deuterium sources.^[1]

Lambda 850 UV-VIS — Inventory photo — Fig. 01Lambda 850 UV-VISInventory photo^[2]

Power

90 VAC–250 VAC, 50/60 Hz; 400 VA^[1]

Optics

≤ 0.05 nm^[1]

What it is

The Perkin Elmer Lambda 850 is a UV-VIS spectrometer.^[2]

Applications

The only application detail stated is that the instrument is used in the UV range, with operation reported as normal above about 300 nm and as problematic below that range.^[2]

Why won't it start?

Documented failure modes, common issues, and field considerations.

Issues in the UV range below ~300 nm
Certain wavelengths below 300 nm read 100% absorbance, causing huge spikes in the graph

What do the numbers mean?

Power & electrical2

Beam splitting system: Chopper (46+ Hz, cycle: Dark/Sample/Dark/Reference, Chopper Segment Signal Correction CSSC)^[1]
Power: 90 VAC–250 VAC, 50/60 Hz; 400 VA^[1]

Optics & imaging8

Issues in the UV range (below ~300 nm); it works fine above that^[2]; Below 300 nm, certain wavelengths will read 100% absorbance (leading to huge spikes in the graph)^[2]
Optical system: All reflecting optical system (SiO2 coated) with holographic grating monochromator with 1440 lines/mm UV/Vis blazed at 240 nm, Littrow mounting, sample thickness compensated detector optics^[1]
Detector: Photomultiplier R6872 for high energy in the whole UV/Vis wavelength range^[1]
Wavelength range: 175 nm–900 nm (N2 purge required below 185 nm)^[1]
UV/Vis resolution: ≤ 0.05 nm^[1]
Known issue: Issues in the UV range below about 300 nm; above that it works fine^[2]
Known issue: Below 300 nm, certain wavelengths can read 100% absorbance and produce huge spikes in the graph^[2]

Control & software1

Principle: Double beam, double monochromator, ratio recording UV/Vis spectrophotometer with microcomputer electronics, controlled by DELL PC or compatible personal computer^[1]

Dimensions & facilities2

Instrument dimensions: 1020 mm x 630 mm x 300 mm (W x D x H)^[1]
Instrument weight: ~ 77 kg^[1]

Configuration & options6

Source: Pre-aligned tungsten-halogen and deuterium^[1]
Photometric range: 8 A^[1]
Sample compartment: 200 mm x 300 mm x 220 mm (W x D x H)^[1]
Digital I/O: RS 232 C^[1]
Temperature: 10°C–35°C^[1]
Recommended humidity: 10–70% relative humidity, non-condensing^[1]

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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

Beam splitting systemChopper (46+ Hz, cycle: Dark/Sample/Dark/Reference, Chopper Segment Signal Correction CSSC)^[1]
Power90 VAC–250 VAC, 50/60 Hz; 400 VA^[1]

Where are the manuals?

Publicly hosted documents referencing this tool, linked at their original location. Hosted by the linked institutions — availability may change.

UVVis-PerkinElmer-Lambda950-Specifications.pdfDatasheetrpi.edu

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Not publicly documented

Field notes

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Frequently asked questions

What wavelength range does the Perkin Elmer Lambda 850 cover?

The Perkin Elmer Lambda 850 covers 175 nm to 900 nm. The Perkin Elmer Lambda 850 requires nitrogen purge below 185 nm.^[1]

What optical configuration does the Perkin Elmer Lambda 850 use?

The Perkin Elmer Lambda 850 uses a double-beam, double-monochromator, ratio-recording UV-Vis spectrophotometer configuration with microcomputer electronics controlled by a compatible personal computer.^[1]

What light sources and detector does the Perkin Elmer Lambda 850 use?

The Perkin Elmer Lambda 850 uses pre-aligned tungsten-halogen and deuterium sources. The Perkin Elmer Lambda 850 uses a photomultiplier R6872 detector for the UV-Vis wavelength range.^[1]

What are the physical dimensions and weight of the Perkin Elmer Lambda 850?

The Perkin Elmer Lambda 850 has instrument dimensions of 1020 mm by 630 mm by 300 mm. The Perkin Elmer Lambda 850 has an approximate weight of 77 kg.^[1]

Not publicly documented

The following facts about the Lambda 850 UV-VIS are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the Lambda 850 UV-VIS are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the Lambda 850 UV-VIS are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the Lambda 850 UV-VIS are not on record.
Answerable by: an engineer who operated it or OEM installation records
The process node or technology generation of the Lambda 850 UV-VIS is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the Lambda 850 UV-VIS are on record.
Answerable by: an OEM parts catalog or a service engineer