Figure 31. Enclosure
7.4 Power Supplies — Details
Related Topics:
• Power Supplies — Specifications
• Power Supplies — Quickstart
(p. 44)
• Power Supplies — Overview (p. 85)
• Power Supplies — Details (p. 100)
• Power Supplies — Products (p. 657)
• Power Sources (p. 101)
• Troubleshooting — Power Supplies (p. 494)
Reliable power is the foundation of a reliable data-acquisition system. When
designing a power supply, consideration should be made regarding worst-case
power requirements and environmental extremes. For example, the power
requirement of a weather station may be substantially higher during extreme cold,
while at the same time, the extreme cold constricts the power available from the
power supply.
The CR1000 is internally protected against accidental polarity reversal on the
power inputs.
The CR1000 has a modest-input power requirement. For example, in low-power
applications, it can operate for several months on non-rechargeable batteries.
Power systems for longer-term remote applications typically consist of a charging
source, a charge controller, and a rechargeable battery. When ac line power is
available, a Vac-to-Vac or Vac-to-Vdc wall adapter, a peripheral charging
regulator, and a rechargeable battery can be used to construct a UPS (un-
100
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