Operation in Harsh Environments
The standard operating range is -25° to +50°C; an
extended range of -55° to +85°C is available. A CR1000
housed in an environmental enclosure with desiccant
is protected from humidity and most contaminants.
Communication Protocols
The CR1000 supports the PAKBUS® communication
protocol. PAKBUS networks have the distributed routing
intelligence to continually evaluate links. Continually
evaluating links optimizes delivery times and, in the
case of delivery failure, allows automatic switch over to
a configured backup route. The CR1000 also supports
the Modbus protocol, which allows the CR1000 to work
with “off the shelf” Modbus software packages.
Communications
Compatible telecommunication options include Ethernet,
phone modems (land-line and cellular), radios, short
haul modems, GOES satellite transmitters, and multi-
drop modems. Real-time and historical data can be
displayed on-site using a Palm OS-based PDA (requires
PConnect 3.1), the CR1000KD Keyboard/Display, or a
PC. The PC connects to the CR1000 via an RS-232 cable,
or if optical isolation is required, via the CS I/O port
and SC32B interface.
Customers can transport programs/data to a PC via
CompactFlash® cards. The CFM100 module is used to
store the programs/data on the card, and a SanDisk®
ImageMate® card reader is used to download the pro-
grams/data to the PC.
Channel Expansion
Synchronous Devices for Measurement (SDMs)
SDMs are addressable peripherals that expand the
CR1000's measurement and control capabilities. For
example, SDMs are available to add control ports,
analog outputs, pulse count channels, interval timers,
or even a CANbus interface to your system. Multiple
SDMs, in any combination, can be connected to one
CR1000 datalogger.
Multiplexers
Multiplexers increase the number of sensors that can be
measured by a CR1000 by sequentially connecting each
sensor to the datalogger. Several multiplexers can be
controlled by a single CR1000. The CR1000 is compat-
ible with the AM16/32 and AM25T.
Applications
• Eddy covariance systems
• Wireless sensor/datalogger networks
• Mesonet systems
• Wind profiling
• Vehicle testing
• Long-term climatological monitoring, meteoro-
logical research, routine weather measurement
• Air quality
• Agriculture, agriculture research
• Soil moisture, Time Domain Reflectometry
• Water level/stage
• Aquaculture
• Water quality
• Avalanche forecasting, snow science, polar,
high altitude
• Fire weather
• Geotechnical
• Historic preservation
The CR1000 is com-
patible with the LLAC4
Low-Level AC Conver-
sion Module. Use of
the LLAC4 allows
more wind sensors to
be measured for wind
profiling applications.
Wind profiling helps
customers determine
if a site is a good can-
didate for harvesting
wind.
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