hplc4sale.co.uk (Jaytee Biosciences Ltd) warranty all reconditioned instruments for a pre-agreed period. This period can be from 30 days to 1 year from the date of installation / delivery of the instrument. Generally newer equipment has a longer warranty than older equipment.
Additional warranty periods can be negotiated at the time of purchase if required.
The list below outlines the items covered by our warranty:
Avoid time consuming sample and standard dilutions, and confidently measure the most challenging of samples. The Cary 5000 Series UV-Vis-NIR provides the widest photometric range available, across the broadest wavelength range - with absorbances exceeding 8 from the UV-Vis to the NIR.
The modular design of the Cary WinUV software means that it can be tailored to suit your analytical requirements and whether it is a materials science application using wavelength scanning measurements, or life science applications requiring advanced enzyme kinetics or thermal control.
Accessories Note: The Varian brand is now owned by Agilent. For accessory requirements (as itemised in the brochure linked below) please enquire.
You may need to purge the instrument with nitrogen under the following circumstances:
The Cary 5000 instrument is fitted with connection points for purging the optical system with nitrogen to enhance the performance of each instrument at extremes of its range.
Nitrogen supplies are not available from Jaytee but may be obtained from commercial suppliers. Liquid nitrogen (in conjunction with a heat exchanger) is recommended because it is generally less costly than compressed nitrogen and is of better quality.
Where compressed nitrogen must be used, the gas must be dry, oil-free and uncontaminated.
Do not use compressed nitrogen from a supplier who uses oil or water in the compression process (these methods leave fine particles of oil or water suspended in the nitrogen that may be deposited on the instrument optics). Only use nitrogen from a supplier who fills containers from immersion pumps lubricated with liquid nitrogen.
Operating pressure for the nitrogen purging system is 83 to 172 kPa (12 to 25 psi).
Use a suitable regulator and gauge assembly to ensure that the nitrogen supply is maintained at the correct pressure.
Nitrogen supply tubing should be clean, flexible plastic tubing - 6 mm (1/4 inch) inside diameter (Tygon PVC or equivalent).
Do not use rubber tubing as this is usually treated internally with talc which will be carried into and contaminate the instrument optics.
The nitrogen system should include a manifold assembly with inlet from the supply and two outlets for connection to the instrument.
Manifold outlets should each be fitted with a stop valve and flow meter for control of gas flow to the instrument.
Flow meters should be adjustable for flow rates of 0 to 30 litres per minute (0 to 64 cubic feet per hour).
NOTE: The instrument warranty will be void if damage is caused by the use of contaminated nitrogen.
* This Varian Cary 5000 UV Spectrophotometer comes with an Operational Qualification Certificate, and has been tested for wavelength accuracy.