CR800包含封装在塑料壳内的测量控制模块和一体式接线面板。CR800使用外部的键盘显示器和供电电源，极低的功耗使得CR800只需要使用小容量的可充电电池和太阳能板组合供电，从而不需要交流电源。为了减小非精确测量的可能性，当主电源低于 9.6 V时，CR800会暂停工作。
|-NOTE-||Note: Additional specifications are listed in the CR800-Series Specifications Sheet.|
|Operating Temperature Range||
|Maximum Scan Rate||100 Hz|
|Analog Inputs||6 single-ended or 3 differential (individually configured)|
|Voltage Excitation Terminals||2 (VX1, VX2)|
|Switched 12 Volt||1 terminal|
|Input Limits||±5 V|
|Analog Voltage Accuracy||±(0.06% of reading + offset) at 0° to 40°C|
|Power Requirements||9.6 to 16 Vdc|
|Real-Time Clock Accuracy||±3 min. per year (Correction via GPS optional.)|
|Internet Protocols||FTP, HTTP, XML POP3, SMTP, Telnet, NTCIP, NTP|
|Communication Protocols||PakBus, Modbus, DNP3, SDI-12, SDM|
|Idle Current Drain, Average||0.7 mA (@ 12 Vdc)|
|Active Current Drain, Average||
|Dimensions||24.1 x 10.4 x 5.1 cm (9.5 x 4.1 x 2 in.)|
|Weight||0.7 kg (1.5 lb)|
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
|LoggerNet||(Version 3.3 or higher)|
|PC400||(Version 1.4 or higher)|
|PCONNECT (retired)||(Version 3.3 or higher)|
|PCONNECTCE (retired)||(Version 2.2 or higher)|
|VISUALWEATHER||(Version 2 or higher)|
With several channel types, the CR800 is compatible with nearly every available sensor, including thermocouples, SDI-12 sensors, and 4 to 20 mA sensors. A custom ASIC chip expands its pulse count, control port, and serial communications capabilities. The CR800's I/O ports can be paired as transmit and receive, allowing serial communications with serial sensors and devices.
The CR800 is compatible with all of our CDMs (requires an SC-CPI), SDMs, multiplexers, vibrating-wire interfaces, terminal input modules, and relays.
The CR800 communicates with a PC via direct connect, NL201 Ethernet Interface, multidrop modems, phone modems (land line, digital cellular, and voice-synthesized), RF telemetry, and satellite transmitters (Argos, Iridium, and Inmarsat.
Data can be viewed on the CR1000KD Keyboard Display, CD100 Mountable Display with Keypad, user-supplied iOS or Android device (requires LoggerLink), CD295 DataView II Display, or a user-supplied PDA (PConnect or PConnectCE software required).
The SC115 is the only compatible external data storage device. The CR800 does not have a peripheral port and is therefore not compatible with the CFM100, NL115, or NL120.
The CR800 and its power supply can be housed in any of our standard enclosures.
Any 12 Vdc source can power the CR800 datalogger. Power supplies commonly used with the CR800 are the BPALK, PS150, and PS200. The BPALK provides eight non-rechargeable D-cell alkaline batteries with a 7.5 A h rating at 20°C.
Both the PS150 and PS200 consist of a sealed rechargeable 7 A h battery and a charging regulator. Their battery should be connected to a charging source (either a wall charger or solar panel). These two power supplies differ in their charging regulator. The PS150 has a standard regulator and the PS200 has a micro-controller-based smart regulator. The PS200's regulator provides two-step constant voltage charging and temperature compensation that optimize battery charging and increases the battery’s life.
Also available are the BP12 and BP24 battery packs, which provide nominal ratings of 12 and 24 A h, respectively. These batteries should be connected to a regulated charging source (e.g., a CH100 or CH200 connected to a unregulated solar panel or wall charger).
CRBasic, the CR800's full programming language, supports simple or complex programming and many onboard data reduction processes.
Execution of this download installs the CR800 Operating System and Compiler on your computer. It also updates the CR800 support files for the CRBasic Editor.
Note: This OS has crossed the 2 Meg CR800 size limit for remote download. The OS must be downloaded to the 2 Meg CR800 via direct connect with the Device Configuration Utility. All OS download methods are supported by the 4 Meg CR800.
Upgrading from versions prior to version 28 of the Operating System will reset the datalogger’s CPU drive. This is due to a change in the format of the file system from FAT16 to FAT32. In order for the datalogger to operate correctly, as part of the upgrade, the CPU drive is formatted to FAT32. Any programs stored and running from the CPU drive will be lost. It is not recommended to update the datalogger’s Operating System over a remote connection where program control regulates the communication equipment (turning it on or off, etc.). In these cases, an on-site visit and a backup using DevConfig’s backup utility is necessary to update the datalogger’s Operating System.
In all cases where the datalogger is being updated from an Operating System prior to 28, the use of DevConfig’s backup utility is recommended due to the CPU drive being formatted using the new FAT32 format.
A software utility used to download operating systems and set up Campbell Scientific hardware. Also will update PakBus Graph and the Network Planner if they have been installed previously by another Campbell Scientific software package.
Supported Operating Systems:
Windows 11, 10, 8.1, 8, and 7 (Both 32 and 64 bit)
The potential transformer and the current transformer provide differential outputs that have galvanic isolation from the voltage and current in the circuit they are measuring. However, there is no need to run the outputs of these transformers into differential inputs of the data logger and unnecessarily consume additional data logger channels. We conducted extensive testing for noise immunity, for inaccuracies from ground loops, and more before concluding that single-ended measurements in the ACPower() instruction have the same performance as differential measurements would provide. Please note that as a result of the galvanic isolation of the potential transformer and current transformer, the data logger ground is NOT connected to the ground of the circuit they are measuring.
Said differently, you can connect differential outputs of a sensor to single-ended inputs of the data logger. However, doing so creates the possibility of poor common-mode noise rejection in the data logger and the possibility of introducing inaccuracies from ground loops between the sensor and the data logger. Note that in this application, the transformer isolation of the potential transformer and the current transformer eliminates these concerns.
Simply connect one of the potential transformer secondary wires and one of the current transformer secondary wires to the data logger ground. Which wire in either case makes a difference, as the phase information allows the measurement of power flowing in either direction. If you measure negative real power when it should be positive, then reverse the secondary wires of the potential transformer where they connect to the data logger. Alternatively, you can reverse the secondary wires on the current transformer, but don't reverse both pairs of wires.
The 5 V terminal is regulated and remains near 5 Vdc (±4%) as long as the CR800 supply voltage remains above 9.6 Vdc. Measurement of the output from 5 V (by means of jumpering to an analog input on the same CR800) enables an accurate bridge measurement if the 5 V terminal must be used for excitation.
LoggerNet is available in a Linux version (LNLINUX).
To restrict access to the program, enable security level 1.
To restrict access to the data, enable security level 2.
For details, see the "Security" subsection in the "System Overview" section of the CR800 Operator’s Manual.
Yes. For instructions, refer to the operator’s manual.