Datron Instruments - 4911 - Spannungsquelle
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Gerät:
4911
Datum:
1990
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Gruppe:
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Informationen
The
4910 and
4911 are Electronic DC Voltage
Reference Standards which feature four separate
and highly stable 10V outputs. While their
performance is comparable to that of saturated
Weston standard cells, they eliminate most of the
drawbacks encountered in standard cell use and
maintenance. In addition to replacing saturated
Weston cells as a laboratory standard, the 4910
and
4911 can also be used as a readily
transportable standard.
The
4910 and
4911 DC Voltage Standards are
based on the latest zener-diode technology. Their
four separate 10V outputs are fully independent,
but can if required be averaged to provide a very
low noise 10V output on separate front-panel
terminals. The provision of both individual and
average outputs enables direct inter-comparison
between the cells at the output terminals, allowing
excessive drift in any cell to be detected without
the use of higher accuracy standards. The
individual outputs-are adjustable to within
microvolts of one another, so that inter
comparison is possible to a very high level of
accuracy.
In addition to itsfour individual cell outputs and its
average 10V output, the4910also features IV and
1.018V outputs, and a low-impedance 10V output
with 4-wire sensing.
In their normal operating mode, the units can be
powered from an ac line supply or from their
internal batteries. Both models also feature a
special low-power transit mode, which can be used
during transportation or shipment of a unit to
maintain its calibration. In transit mode, power
can be derived from the unit’s internal batteries,
from an external DC supply, or from an AC line
supply.
Bedienungsanleitung
Dokumenttyp:
Bedienungsanleitung
Seitenanzahl:
80
Größe:
5,7 MB
Sprache:
englisch
Revision:
Issue 1
Dokument-ID:
850254
Datum:
Januar 1990
Qualität:
Gescanntes Dokument, teilweise schwer oder teilweise nicht zu lesen.
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