Campbell CR6 Series, Product Manual

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to the data logger. For more information, see Sending a program to the data logger (p.
46).
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Datalogger Support Software - Software retrieves data, sends programs, and sets settings.
The software manages the communications link and has options for data display.
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Programmable Logic Control - Some data acquisition systems require the control of
external devices to facilitate a measurement or to control a device based on measurements.
This data logger is adept at programmable logic control. See
Programmable logic control
(p. 16) for more information.
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Measurement and Control Peripherals - Sometimes, system requirements exceed the
capacity of the data logger. The excess can usually be handled by addition of input and
output expansion modules.
1.1 The CR6 Datalogger
The CR6 data logger provides fast communications, low power requirements, built-in USB,
compact size and and high analog input accuracy and resolution. It includes universal (U)
terminals, which allow connection to virtually any sensor - analog, digital, or smart. This
multipurpose data logger is also capable of doing static vibrating-wire measurements.
1.1.1 Overview
The CR6 data logger is the main part of a data acquisition system (see CR6 data acquisition
system components (p. 1) for more information). It has a central-processing unit (CPU), analog
and digital measurement inputs, analog and digital outputs, and memory. An operating system
(firmware) coordinates the functions of these parts in conjunction with the onboard clock and
the CRBasic application program.
The CR6 can simultaneously provide measurement and communications functions. Low power
consumption allows the data logger to operate for extended time on a battery recharged with a
solar panel, eliminating the need for ac power. The CR6 temporarily suspends operations when
primary power drops below 9.6 V, reducing the possibility of inaccurate measurements.
1.1.2 Communications Options
The CR6 can include Wi-Fi or the following radio options for different regions:
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RF407: 900 MHz (United States and Canada)
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RF412: 920 MHz (Australia and New Zealand)
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RF422: 868 MHz (Europe)
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RF451: 900 MHz, 1 Watt (United States, Canada, and Australia)
1. CR6 data acquisition system components 2