2487 Dual Absorbance Detector, Waters Corporation (CAT#: STEM-CPO-0969-ZJF)

The manufacturer of the 2487 Dual Absorbance Detector is Waters Corporation.
The Waters 2487 Dual Absorbance Detector is designed for use in liquid chromatography applications. It features two simultaneous absorbance detectors, allowing for multiplexed measurements. The 2487 has a broad dynamic range and excellent sensitivity, making it suitable for the detection of a wide range of analytes.

Condition: Pre-owned
Wavelength range: 190 to 700 nm
Bandwidth: <5 nm
Wavelength accuracy: +1.0 nm
Wavelength repeatability: +0.1 nm
Single λ dry noise: <5 µAU (at 230 nm, 1 –second digital filter, 30-second segments, 10-Hz data rate, analytical cell)
Wet noise: <8 µAU (at 230 nm, 1-second digital filter 30-second segments, 10-Hz data rate, analytical cell)
Dual channel noise (dry): <35 µAU (measured at 230 nm, running at 230 to 280 nm with 2-second filter at 1-Hz data rate; dry, analytical cell)
Dual channel noise (wet): <45 µAU (measured at 230 nm, running at 230 to 280 nm with 2-second filter at 1-Hz data rate; 1 ml/min, flow of acetonitrile, analytical cell)
Linearity: <5% at 2.5 AU, propylparaben at 257 nm
Drift: 1.0 x 10-4 AU/hr. max (∆T = +2°C/hr.)
Thermal drift: 1.0 x 10-4 AU/°C max (∆T = +2°C/hr.)
Sensitivity setting range: 0.0001 to 4.0000 AUFS
Filter setting range: Single-wavelength: 0.1 to 5.0 seconds, Dual-wavelength: 1 to 50 seconds
Time-constant: To 5.0-second Hamming filter
Digital data rates: 1,2,5,10,20,40,80 Hz (single channel) 1,2 Hz (dual channel)
Analog output data rates (single λ mode): 10,20,40,80 Hz (channel A) 10 Hz only (channel B)
Lamp source: 30-W High Brightness Deuterium lamp, 0.5 nm aperture, pre-aligned 2000 silicon photodiodes (matched pair)
Second-order filter: Automatic for wavelengths > 370 nm
Wavelength calibration filter: Erbium filter, used at startup or on demand
Flow cell: TaperSlit flow cell design
Nitrogen purge: Purge fitting present on optics bench
Path length: 10 mm (standard analytical)
Cell volume: 10 µL (standard analytical)
Pressure limit: 6895 kPa (69 bar,1000 psi)
Materials: 316 stainless steel, fused silica, Tygon
Operating temperature: 4 to 40 °C (39 to 104 °F)
Operating humidity: 20% to <95%, noncondensing
Shipping and storage: -30 to +60 °C
Shipping and storage humidity: 0% to <95% noncondensing

Stand-alone programmability
Stores up to 10 user-defined programs (or methods) consisting of up to 16 programmable timed events and 2 threshold events each. Single or dual wavelength
Monitors absorbance at one or two discrete wavelengths.
Wavelength verification reference -Ensures wavelength accuracy.
Automatic second order filter -Automatically engaged for wavelengths 370 nm and greater and removed for wavelengths 369 nm or less.
Spectrum scan and storage -Supports spectrum scan, display, subtraction, storage, and playback, in addition to standard tunable absorbance and UV/Vis functionality.
Cuvette qualification
Facilitates qualification of the detector by insertion of a standard in a cuvette without breaking any fluidic connections. Waters qualification kits are available in cuvette form to support this feature. This feature also allows you to use the 2487 Detector as a benchtop spectrophotometer.
Cuvette sample analysis
Allows the spectrum of any sample placed in the cuvette to be recorded.
Method editing and storage -Supports basic method programming, storage, and retrieval from the front panel.
Full diagnostic capability -Supports built-in diagnostic tools to optimize functionality and performance.

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