Ocean Optics Jaz Install - Manual (Page 33)

013-RD000-000-02-201103 25
Chapter 4
Operating the JAZ-PX Module
JAZ- PX Module Overview
The Jaz PX lamp is a pulsed, short arc xenon lamp for UV-VIS applications such as absorbance,
bioreflectance, fluorescence and phosphorescence. The lamp has a specified pulse frequency of 200 Hz
(maximum 500 Hz) and spectral response from 190 – 1100 nm.
WARNING
The PX-2 produces ultraviolet radiation. Direct eye contact can cause permanent
eye damage. Always wear safety eyewear, and never look directly into the light
source.
The JAZ-PX module operates in both free running and triggered modes, allowing its pulses to coordinate
with other devices in the stack. The module contains an SMA connector to couple to other Ocean Optics
accessories such as optical fibers, cuvette holders, probes, etc. (see
Additional Equipment Available ).
The JAZ-PX is ideal for field applications such as bioreflectance that require a high-intensity, low-power
light source. In fact, no external power supply is required to operate the JAZ-PX module. When used in
battery power mode, the lamp will operate for approximately 3 hours. An additional external power
supply is avialable through an optional 50 Watt-hour jaz battery extender (see
Additional Equipment
Available ).
For JAZ-PX module specifications, refer to Appendix B: Specifications.
Caution
The spectrometer module is especially sensitive to heating, so you should be aware
of the effects of heating on spectrometer modules when setting up an experiment,
particularly when using the JAZ-PX module. Since the JAZ-PX does not include a
fan and the Jaz metal housing has high thermal conductivity, heat generated by the
JAZ-PX will be conducted to other modules in the stack.
These effects are most prevalent in applications with long term, continuous
operation of the JAZ-PX at moderate to high flash rates. For short-duration
experiments, these thermal effects are not as prominent. Most significantly, heating
a spectrometer module will cause that spectrometer’s baseline (the measured
intensity when it is not exposed to light) to drift downwards.
The JAZ-PX Lamp Module Engineering Note contains more information on thermal
considerations and how to mitigate the effects of heating. See Product-Related
Documentation .