Buck 1011C, Руководство по эксплуатации

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1.2 BRIEF PHYSICAL DESCRIPTION
Physically, the system (Figure 1) consists of a sensing unit, a control/indicator unit, a
power unit, associated cabling, and a maintenance unit.
The Sensing Unit (A) is the moisture-detecting device. It contains a right or left hand inlet
fitting, a mirror, sensing/control optics, a thermistor, a TEC, and associated electronics.
The Control/Indicator Unit (B) is the user interface component, and contains the on/off
function switch, balance control, and displays.
The Power Unit (C) distributes operating power to the system components and contains the
circuitry that controls the thermoelectric cooler and converts mirror temperature to a
suitable output signal (provided at rear of unit). The unit is equipped with quick-remove
shock mount.
The Maintenance kit: Consisting of bottles for water and acetone, cotton swabs and spare
gaskets and o-rings. Unlike the 1011B, the 1011C does not come with a calibration plug.
This is because the 1011C uses an ultra-stable thermistor instead of an RTD, which
improves speed of response and is far less susceptible to drift. Additionally, the
temperature is measured with an analog-to-digital converter (ADC) that is calibrated each
time the instrument is turned on and is not susceptible to drift like the analog electronics in
the old 1011B instrument, and therefore does not need a calibration plug.
Three Cables or six Connectors, a Data Connector, and a Power Connector connect the
various system components and provide input power.
Optional Accessories, which further increase versatility and ease of use, are described in
Section 2.6.
Note: The 1011B hygrometer was originally developed and produced by
General Eastern Instruments. This operating manual originated at General
Eastern, and many of the drawings are reproduced by their courtesy.