ThermoFisher Scientific Vanquish VC-D50, Руководство по эксплуатации

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7 • Maintenance and Service
Fluorescence Detectors (VC-D50, VC-D51, VF-D50, VF-D51)
Operating Manual Page 131
7.4.4 Monitoring the Lamp Age
The Chromeleon software supports functions for monitoring the lamp
age. This function can help to decide when a lamp is due to be replaced.
The flash lamp can produce about 1-1.5x10
9
flashes before it needs
replacement only if the performance of the detector is no longer
sufficient. Thus, the lifetime for the flash lamp depends on the flash
frequency, and therefore the selected lamp mode. Based on the number
of lamp flashes, the Chromeleon software calculates a value that
indicates how many hours the lamp was operated. The value is based on
the assumption that the lamp was operated in
Standard mode. For the
calculation of the expected lamp lifetime, one operating hour is
weighted depending on the selected lamp mode.
Mode 1 operating hour is counted as ... Expected lamp lifetime
LongLife 0.25 hours approx. 16000 hours
Standard 1 hour approx. 4000 hours
HighPower 3 hours approx. 1300 hours
Example: If the lamp age in Chromeleon indicates 2000 hours, this
means that the lamp has reached about the half of its lifetime. Thus, if
the lamp is operated in
LongLife mode, it is expected to operate for
another 8000 hours.
In Chromeleon, check the EffectiveLampAge parameter. If the value
exceeds 4000 hours, the lamp should be replaced. Note that the lamp
must be replaced only by a Thermo Fisher Scientific service engineer.
The service engineer will reset the lamp age counter to zero after the
lamp was replaced.
TIP You can extend the lifetime of the xenon flash lamp by switching
between lamp modes during a chromatographic run.
See also
2 Lamp Mode ( } page 115)