Instrument Description 3-13
Temperature Control
The temperatures of the condenser, saturator, and optics are
nominally maintained at 14°C, 39°C and 40°C, respectively, with
specified ambient temperatures in the operating range of 10 to
35°C. Temperatures are controlled through feedback circuits on
the main electronics board, and are displayed in the Status menu
on the front panel. For ambient temperatures outside the
instrument operating range, the instrument temperature
performance may not be maintained. Moderate increases in
saturator temperature and optics are tolerated in some instances,
depending on measurement requirements.
Inlet Pressure Measurement
With the built-in high vacuum pump, the instrument is capable of
operating at inlet pressures in the range of 75 to 105 kPa. The inlet
pressure is measured by an absolute pressure sensor, and is
essentially the barometric pressure if no inlet restriction is present.
The Inlet Pressure reading is found on Status screen of the front
panel display. Refer to
Chapter 4 for more details.
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