The CR1000 is our most widely used data logger. It can be used in a broad range of measurement and control functions. Rugged enough for extreme conditions and reliable enough for remote environments, it is also robust enough for complex configurations. Used in applications all over the world, it will be a powerful core component for your data-acquisition system.Leia mais
The CR1000 consists of a measurement and control module and a wiring panel. This data logger uses an external keyboard/display and power supply. Low power consumption allows the CR1000 to operate for extended time periods on a battery recharged with a solar panel—eliminating the need for AC power. The CR1000 suspends execution when primary power drops below 9.6 V, reducing the possibility of inaccurate measurements.
The CR1000's module measures sensors, drives direct communications and telecommunications, reduces data, controls external devices, and stores data and programs in on-board, non-volatile storage. The electronics are RF shielded and glitch protected by the sealed, stainless-steel canister. A battery-backed clock assures accurate timekeeping. The module can simultaneously provide measurement and communication functions. The on-board, BASIC-like programming language supports data processing and analysis routines.
The CR1000WP is a black, anodized aluminum wiring panel that is compatible with all CR1000 modules. The wiring panel includes switchable 12 V, redistributed analog grounds (dispersed among analog channels rather than grouped), unpluggable terminal block for 12 V connections, gas-tube spark gaps, and 12 V supply on pin 8 to power our COM-series phone modems and other peripherals. The control module easily disconnects from the wiring panel allowing field replacement without rewiring the sensors.
Originally, the standard CR1000 had 2 MB of data/program storage, and an optional version, the CR1000-4M, had 4 MB of memory. In September 2007, the standard CR1000 started having 4 MB of memory, making the CR1000-4M obsolete. Data loggers that have a module with a serial number greater than or equal to 11832 will have a 4 MB memory. The 4 MB data loggers will also have a sticker on the canister stating “4M Memory”.
|-NOTE-||Additional specifications are listed in the CR1000 Specifications Sheet.|
|Operating Temperature Range||
|Analog Inputs||16 single-ended or 8 differential (individually configured)|
|Voltage Excitation Terminals||3 (VX1 to VX3)|
|Switched 12 Volt||1 terminal|
|Input Limits||±5 Vdc|
|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|
|Battery-backed SRAM for CPU Usage & Final Storage||4 MB|
|Idle Current Drain, Average||< 1mA (@ 12 Vdc)|
|Active Current Drain, Average||
|Weight||1.0 kg (2.1 lb)|
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
|LoggerNet||Version 3.0 or higher|
|PC400||Version 1.2 or higher|
|PCONNECT (retired)||Version 3.1 or higher|
|PCONNECTCE (retired)||Version 2.0 or higher|
|RTDAQ||Version 1.0 or higher|
|VISUALWEATHER||Version 2.0 or higher|
With several channel types, the CR1000 is compatible with nearly every available sensor, including thermocouples, SDI-12 sensors, and 4 to 20 mA sensors (via a terminal input module, such as the CURS100). A custom ASIC chip expands its pulse count, control port, and serial communications capabilities. The CR1000's I/O ports can be paired as transmit and receive, allowing serial communications with serial sensors and devices.
The CR1000 is compatible with all of our CDMs (requires an SC-CPI), SDMs, multiplexers, vibrating-wire interfaces, terminal input modules, and relays.
The CR1000 communicates with a PC via direct connect, Ethernet interfaces, multidrop modems, short-haul 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, the CD100 Mountable Display with Keyboard, an iOS or Android device (requires LoggerLink), CD295 DataView II Display, or a user-supplied PDA (PConnect or PConnectCE software required).
Compatible external data storage devices are the CFM100, NL115, and SC115.
The CR1000 and its power supply can be housed in any of our standard enclosures.
Any 12 Vdc source can power the CR1000 datalogger. Power supplies commonly used with the CR1000 are the BPALK, PS150, and PS200. The BPALK provides eight non-rechargeable D-cell alkaline batteries with a 7.5 Ah rating at 20°C.
Both the PS150 and PS200 consist of a sealed rechargeable 7 Ah 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 Ah, 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 CR1000's full programming language, supports simple or complex programming and many onboard data reduction processes.
Execution of this download installs the CR1000 Operating System and Compiler on your computer. It also updates the CR1000 support files for the CRBasic Editor.
Note: This OS has crossed the 2 Meg CR1000 size limit for remote download. The OS must be downloaded to the 2 Meg CR1000 via direct connect with the Device Configuration Utility. All OS download methods are supported by the 4 Meg CR1000.
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 10, 8.1, 8, and 7 (Both 32 and 64 bit)
Number of FAQs related to CR1000: 185
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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.
If the mistake is caught quickly and the 24 Vdc power source is removed before the surge protection fails, apply the 12 Vdc power source and continue. If a 24 Vdc power source was applied for an extended period, the surge protection will fail and the data logger will have to be returned for repair.
The lithium battery voltage is measured by the data logger once per day, and the value is held in the Status table when it is running normally. The voltage is normally extremely stable if the data logger is powered from another source and its temperature is stable. A new battery supplies approximately 3.6 Vdc; it should be replaced when its reading is at or below 2.7 Vdc.
The lithium battery voltage is also read when the data logger is reset or its program is recompiled.
In OS 24, the data logger does not differentiate between a self-signed and a signed certificate.
The number of data tables that can be user-defined is more than 250.
No. The RS-232 does not provide 12 Vdc on any pin. The port does use an RS-232 driver chip that is capable of working with many port-powered interfaces.
Load the string to a buffer in the SDM-SIO4, and issue the command to send the string. For details, see the SDM-SIO4 Instruction Manual.
Yes, provided the serial sensor is connected to a port that is separate from the one used to connect to LoggerNet.
For the CR1000 datalogger, the Status table, accessed from the CR1000KD or LoggerNet (version 4) Connect screen, Station Status button, has some statistics that may be useful. Refer to “ProcessTime,” “MaxProcTime,” “MeasureTime,” and “MeasureOps” in Appendix B of the CR1000 Operator’s Manual.