LRS Micro-g LaCoste FG5, Manual, Page: 29 / 149

Design: Components and Function
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2.5.5.POWER SUPPLIES
There are two primary power supply units which are required to operate the
FG5:
The power mains module is located in the rear of the electronics case. It is the
primary input for AC power, and contains all the DC power supplies which are
required to operate the FG5. Note that it accepts AC voltage from 100-240 V, 50-
60 Hz.
The Micro-g Solutions Model 125 Portable Ion Pump Power Supply is located in
the dropping chamber travel case. It supplies power to the ion pump for both
AC and DC operation. See the Model 125 manual for operating instructions.
Note that it accepts AC voltage from 100-240 V, 50-60 Hz.
2.5.6.OPTIONAL SYSTEMS
There are two optional systems for the FG5: the Environmental Sensors Package
and the Rotation Monitor. The environmental sensors package can be added to
the system by itself, but if the rotation monitor is purchased, the environmental
sensors package must be included in the system.
2.5.6.1.ENVIRONMENTAL SENSORS
The Environmental Sensors Package is used to record environmental data
(temperature and atmospheric pressure) as the system is operating. Atmospheric
pressure data is used to compute and apply the local barometric pressure
attraction correction while the system is operating. The primary components of
the environmental sensors package are:
•
Temperature Probe: The patch panel (Channel 0) contains a built-in
temperature sensor that records ambient temperature. Note that
temperature is not actually used in the gravity determination calculation.
It is recorded purely for diagnostic reasons.
•
Pressure Sensor: A digital barometer is used to sense the atmospheric
pressure. It is mounted on the inside of the power mains module at the
rear of the electronics case, and is read in to the computer via patch panel
Channel 4.
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