Cr800 Datalogger Campbell Scientific

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The CR800 is a smaller, research-grade datalogger designed for stand-alone operation in harsh, remote environments. It is intended for smaller configurations in which fewer sensors will be measured. Each CR800 reads input from sensors, then transmits the data via a communication peripheral; most sensors and telecommunication devices are compatible. Multiple CR800s can be configured as a network or units can be deployed individually.

Another datalogger, the CR850, is similar to the CR800, but has an integrated a keyboard and display screen for on-site control.

Benefits and Features

• Ideal applications include wind profiling, weather stations, ETo/agriculture, air quality, soil moisture, water level/stage, aquaculture, vehicle testing, Time Domain Reflectometry, SCADA, and water quality
• Simpler in design, the CR800 and CR850 are easier to program and wire.
• Serial communications with serial sensors and devices supported via I/O port pairs
• Contains custom ASIC chip that expands pulse count, control port, and serial communications capabilities
• Compatible with channel expansion peripherals allowing you to expand your system
• Supports PakBus, Modbus, SDI-12, and DNP3 protocols
• Includes both an CS I/O port and an RS-232 port for connecting communication devices
• Gas Discharge Tube (GDT) protected inputs
• Battery-backed SRAM and clock that ensure data, programs, and accurate time are maintained while datalogger is disconnected from the main power source
• Program with LoggerNet, PC400, or ShortCut to fit your setup.

Technical Description

The CR800 consists of measurement electronics encased in a plastic shell and an integrated wiring panel. This datalogger uses an external keyboard/display and power supply. Low power consumption allows the CR800 to operate for extended time periods on a battery recharged with a solar panel—eliminating the need for AC power. The CR800 suspends execution when primary power drops below 9.6 V, reducing the possibility of inaccurate measurements.

The on-board operating system includes measurement, processing, and output instructions for programming the datalogger. The programming language, CRBasic, uses a BASIC-like syntax. Measurement instructions specific to bridge configurations, voltage outputs, thermocouples, and pulse/frequency signals are included. Processing instructions support algebraic, statistical, and transcendental functions for on-site processing. Output instructions process data over time and control external devices.

CR800 Specifications

• Maximum Scan Rate: 100 Hz
• Analog Inputs: 6 single-ended or 3 differential individually configured
• Pulse Counters: 2
• Switched Excitation Channels: 2 voltage
• Digital Ports¹: 4 I/Os or 2 RS-232 COM²
• Communications Ports: 1 CS I/O, 1 RS-232
• Switched 12 Volt: 1
• Input Voltage Range: ±5 Vdc
• Analog Voltage Accuracy:
  ±(0.06% of reading + offset), 0° to 40°C
• Analog Resolution: 0.33 µV
• A/D Bits: 13
• Power Requirements: 9.6 to 16 Vdc
• Dimensions:
  24.1 x 10.4 x 5.1 cm
  (9.5" x 4.1" x 2")
• Weight: 0.7 kg (1.5 lb)
• Protocols Supported: PakBus, Modbus, DNP3, FTP, HTTP, XML, POP3, SMTP, Telnet, NTCIP, NTP, SDI-12, SDM
• CE Compliance Standards to which Conformity is Declared: IEC61326:2002
• Warranty: 3 years

Temperature Range

• Standard: -25° to +50°C
• Extended: -55° to +85°C

Memory

• Operating System: 2 MB Flash
• CPU Usage, Program Storage, and Data Storage: 4 MB

Current Drain

• Sleep Mode: 0.7 mA typical; 0.9 mA max.
• Active (w/o RS-232 communication):
  1 to 16 mA typical
• Active (w/RS-232 communication):
  17 to 28 mA typical

¹Certain digital ports can be used to count switch closures.

²I/O ports can be paired as transmit and receive for measuring smart serial sensors.

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Thanks and Best Regards!

_____________________

Nguyen Van Hung

Measurement and Control Equipment Co.,Ltd

847 Huyen Ky, Phu Lam, Ha Dong, Ha Noi, Viet Nam

Mobile: (+84) 904251826

Tel : (+84) 4 85894254

Yahoo: nvhung.mctt

Skype: nvhung.mctt

Email: nvhung@mctt.com.vn

Website: http://www.mctt.com.vn