EXFO X-Cite 120 XL System
The least costly model of this highly capable series, the X-Cite® 120 XL is a broad spectrum light source that excites a wide range of fluorophores. It is compatible with modern microscopes from all major manufacturers, or could be employed as a standalone coaxial or off axis illuminator for other applications including uses with other lenses and film or digital imaging systems. The light is pumped through a Liquid Light Guide (LLG) that ensures homogeneity at the delivery end. Because of the length of the LLG (several lengths are available, or a custom LLG can be made) the X-Cite unit can remain far enough away from the microscope so that heat and vibration do not interfere with the observations.
Right: X-Cite 120 XL Illumination System
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X-Cite® 120 XL employs an optimized 120-watt Metal Halide lamp that warms up in about 90 seconds to deliver rich spectral excitation across a uniformly illuminated field. The proprietary Intelli-Lamp® technology provides more than 2,000 hours of life, and a consistent output is maintained over a great percentage of this lifespan. The lamp is a module that aligned at the factory and so changing the lamp is a safer and simple, one-step process. The optional adjustable iris allows the operator to set the level of illumination at 100%, 50%, 25%, 12%, or 0%. This is ideally suited to routine fluorescence assays and use in multi-user facilities.
EXFO short arc lamps for AC (X-Cite® 120 series) or DC (X-Cite exacte) operation burn in an atmosphere of mercury vapour at high pressure. In cold lamps (i.e. at room temperature) metallic droplets of mercury can be seen in the lamp bulb. During operation of the lamp the mercury vaporizes due to heating of the discharge tube (lamp body) and the gas between the electrodes approaches temperatures of up to 10,000°C. The temperature of the discharge tube reaches approximately 800°C. After the lamp is in thermal equilibrium (5 to 10 minutes after ignition), the vaporized mercury gives rise to a pressure routinely of 30 to 75 times the atmospheric pressure.
Caution: any HG LAMP CONTAINS MERCURY. Inhaling mercury vapour or small particles of mercury or its compounds can be harmful to lungs, kidneys and the nervous system. Injuries to oneีs health can arise due to penetration of the skin or resorption via the gastro-enteric tract. So manage these risks in accord with Disposal Laws and refer to www.lamprecycle.org, or call 1-800-668-8752. Lamps sold by Company Seven may be returned in their original packaging to us; contact Company Seven in advance to obtain Return Authorization and instructions. Otherwise return directly to EXFO in the original packaging for disposal in the appropriate manner. For additional information about this refer to Mercury Safety Instructions for Short Arc Lamps in our Library.