msscientific start page msscientific Chromatographie-Handel GmbH -
Products for chromatography, spectroscopy, liquid management, sample preparation and thermostating
msscientific start page Back Products Info Search Contact Deutsch
NK-Series Mercury Lamps from Heraeus Noblelight
 Lamp Selection  An overview of all lamps offered by us for analytical and medical technology
 St Mercury Lamps  More information on St series mercury lamps from Heraeus Noblelight
 HPK 125W  More information on HPK 125W mercury lamps from Heraeus Noblelight
 HG2  More information on HG2 low-pressure mercury lamps from Heraeus Noblelight
 Black Light Blue  More information on TW6W black light blue lamps from Heraeus Noblelight
 Price List  PDF Price List - Line Sources
Absorption measurements and fluorimetric measurements require single mono-
chromatic lines with high radiation density. Mercury low-pressure lamps emit a single monochromatic line at 253.7 nm, which is well reproducible and stable.

Heraeus Noblelight NK-series lamps are low-pressure mercury lamps that are sta-
bilised by the geometric form of the discharge tube and by a cover bulb which re-
duces influences of ambient fluctuations.

NK-series mercury lamps are used in photometers, polarimeters, fluorimeters, re-
fractometers, densitometers and in mercury gas detection equipment. Additionally they are used for wavelength calibration of optical measuring instruments and for disinfection. NK-series lamps are equipped with a quartz material that absorbs the 185 nm line produced in the low-pressure gas discharge. Therefore the NK-lamps do not produce any ozone.
NK-Series Mercury Lamps from Heraeus Noblelight

The guaranteed operating life for all lamp types is 2000 hrs with a reduction of the output of max. 50%. A normal useful operating life can be between 4000 and 6000 hrs. The lamp should be operated at ambient temperatures.

Image: Spectral distribution NK series lamps
Top image: Spectral distribution NK series lamps
Relative Intensity (%) - for all NK lamp types
Wave Length (nm) Intensity Wave Length (nm) Intensity
248 0.1 313 2.8
253.7 100.0 334 0.1
265 0.1 366 2.2
276 0.1 405 1.6
280 0.1 408 1.6
289 0.9 436 1.1
297 0.6 546 1.6
302 0.4 577/579 0.5

MANUFACTURER SAFETY WARNING
UV radiation damages skin and eyes. Always wear protective glasses, gloves and clothing.

TECHNICAL INFORMATION
 Lamp Type: NK 4/4
Click here for enlarged image: NK 4/4 Mercury Lamp
Part No.: 56001636
Total Length (mm): 116
Outer Bulb Ø (mm): n/a
Discharge Tube Ø (mm): 5
Arc Length (mm): 10
Base: n/a
Ignition Voltage (VAC/VDC): 1000/900
Wattage (W): 3.5
Lamp Voltage (V): 220 ± 20
Lamp Current (A): 0.02
Factor/Radiation Flux* (mW): 5
Radiation Flux at 253.7 nm (mW): 500
Radiation at 253.7 nm (mW cm-2 sr-1): 15

*Example: Factor x Intensity (table above): 2 x 100 = 200 mW


ORDER INFORMATION
 Type Part No. Price 
NK 4/4 56001636 385.00
All prices are in Euros per piece and are subject to change without further notice.


For further questions, please don't hesitate to contact us.

Receive at least 1% discount Lab-Club is the e-Business platform of msscientific Chromatographie-Handel GmbH Online Order Platform
home | products | info | search | contact
Follow us on:
Visit us on Facebook  Visit us on Google+  Follow us on Twitter
msscientific Chromatographie-Handel GmbH · Gneisenaustrasse 66/67 · 10961 Berlin · Germany
Fon: +49 30 6270 6087 · Fax: +49 30 6270 6089 · E-mail: info@msscientific.de · Web: www.msscientific.de
Last update January 2017 · Copyright © msscientific Chromatographie-Handel GmbH · All rights reserved