Dataloggers for Measurement & Control
Campbell Scientific dataloggers are at the centre of our rugged, reliable data acquisition systems. They are known for their flexibility, precision measurements, and dependability—even in harsh, remote environments. As for functionality, all of our dataloggers:
Measure sensors Process data onboard
Initiate measurement and control functions based on time or event
Control external devices such as pumps, motors, alarms, freezers, and valves
Operate independently of ac power, computers, and human interaction Use our PC support software to program the datalogger Consume minimal power from a 12 Vdc source Interface with on-site and telemetry devices Perform reliably under adverse conditions
We manufacture a complete line of dataloggers ranging in size and complexity. Dataloggers vary in the supported scan rates, number and type of input/output channels, analogue resolution, and analogue voltage accuracy. All of our dataloggers have a three year warranty.
Communication Protocols PakBus®
With the PakBus protocol, 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 back-up route.
Modbus
The Modbus RTU protocol supports both floating point and long formats. The datalogger can act as a slave and/or master.
Input/Output Connections
Switched Excitation Outputs Provides programmable excitation for resistive bridge measurements
Analogue Inputs For differential, single-ended, and period averaging measurements
5 V Terminal For sensor or modem power
Pulse Counters For measuring switch closures, low-level ac sine waves, or high frequency pulses
Removable Power Terminal Simplifies connection to external power supply
DNP3
The dataloggers are level 2 slave compliant, with some of the operations found in a level 3 implementation.
TCP/IP, FTP, and SMTP
These protocols provide TCP/IP functionality on the CR6 or, when a CR1000 or CR3000 is used in conjunction with an NL116, NL121, or third party serial IP device.
RS-232 Port For connecting PCs, serial sensors, or RS-232 modems
Switched 12 V Terminal For switching power to sensors or communication devices
12 V Terminal For continuous sensor or modem power
Digital I/O Ports For controlling external devices, reading SDI-12 sensors or SDM peripherals
CS I/O Port For connecting to Campbell Scientific peripherals
Peripheral Port (CR1000 and CR3000 only) For Ethernet communica- tions and/or storing data on a CompactFlash card.
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