LED20 UV built-in Detectors
The LED20 UV detectors with UV Light Emitting Diodes (LED) as the light source is an OEM-built-in UV detector for preparative and flash chromatography.
Related variants
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| Image | PN | Name | Number of channels (signals) | Basic wavelengths [nm] | Spectral half width [nm] | Request quote |
|---|---|---|---|---|---|---|
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Image
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PN
LED02101
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Name
LED20 Single UV-VIS Detector
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Number of channels (signals)
1 fix wavelength
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Basic wavelengths [nm]
255 or 280 (other on demaand)
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Spectral half width [nm]
10 - 15
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Actions
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|
Image
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PN
LED02201
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Name
LED20 Dual UV-VIS Detector
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Number of channels (signals)
2 fix wavelengths
|
Basic wavelengths [nm]
255 and 280 (other on demaand)
|
Spectral half width [nm]
10 - 15
|
Actions
|
- Description
- Parameters
- Files to download 1
The LED20 UV detectors measures at one or two fixed wavelengths, which are adjusted in production and given by the built-in LEDs.
By default, diodes with wavelengths of 255 and 280 nm are used. Optionally, the customer can select a wavelength in the range of 255–600 nm in steps of 5 nm.
The unit is controlled by an innovative PCB board that powers the LEDs and controls the unit, and has many new features, including a higher sampling speed.
The key features of the LED20 detectors:
- Small dimensions
- Low cell heating due to the low power losses of the LEDs
- Easy flow cell replacement
- Sophisticated diagnostic software
| Number of channels (Signals) | One or Two fix wavelengths |
|---|---|
| Typical spectral half-width | 10 -15 nm |
| Light source | LEDs |
| Noise level at test cell (254 nm, TC 0.75 s) | ± 5x10-6 AU |
| Drift at test cell (254 nm after 1 h) | 1x10-3 Au/hr |
| Communication | RS232,Remote digital I/O |
| Diode peak wavelength | ± 5 nm |
| Power supply | 12-24 V DC |
| Power input | 4 W |
| Materials in contact with mobile phase | FEP; fused silica; stainless steel (cell) |
| Optical cables | no |
| Dimensions W x H x D | 125x65x62 mm (4.92x2.56x2.44 in) |
| Weight | 0.5 kg (1.10 Ib) |
| Filename | Type |
|---|---|
| Info-LED20_detector-en | pdf (239,91 KB) |
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