Mô tả sản phẩm: Bộ lưu trữ và xử lý dữ liệu CR800 Datalogger Campbell Sientific
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
