Power Module - Teledyne 514 Instruction Manual

Ndir analyzer
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2.0 Operational Theory
Figure 2-2

2.1.3 Power Module

See Figure 2-3. The power module controls power to the analyzer unit,
providing the switching function for the local meter, and providing tempera-
ture control for the sample and detector modules. In the case of the explo-
sion-proof configuration, where the control unit is mounted locally, the
power module simply routes the AC input power to its destination and
allows the control unit to provide the ON/OFF function.
When power is applied to the system, it is directed to the constant
voltage transformer and to the three temperature controllers which are
insensitive to line voltage fluctuations.
In order to facilitate easier calibration and to provide a quick visual
indication of the instrument's status, a local meter is provided. With the
2–4
Teledyne Analytical Instruments
A Business Unit of Teledyne Electronic Technologies
Analyzer System - Block Diagram

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