Compact Datalogger
Ideal for small applications
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Overview

The CR300 is a multi-purpose, compact, low-cost measurement and control datalogger. This entry-level datalogger, with its rich instruction set, can measure most hydrological, meteorological, environmental, and industrial sensors. It will concentrate data, making it available over varied networks and deliver it using your preferred protocol. The CR300 also performs automated on-site or remote decision making for control and M2M communications. The CR300 is ideal for small applications requiring long-term, remote monitoring and control.

The CR300 has multiple radio options that are suitable for different regions:

  • CR300-RF407: US and Canada
  • CR300-RF412: Australia and New Zealand
  • CR300-RF422: Europe
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Benefits and Features

  • Set up easily with PC software and USB connectivity
  • Measure with confidence analog and digital sensors
  • Internet ready–email, FTP, HTTP/web, TCP–with required add-ons
  • Trust in the Campbell Scientific quality, including integral surge and ESD protection
  • Network wirelessly to another node or Internet gateway with integrated radio option
  • Communicate from anywhere when using cellular or satellite peripheral
  • Save money and space using the integrated 12 V battery solar charge regulator
  • Measure smart sensors using RS-232 or SDI-12
  • Connect with PakBus, Modbus, DNP3, GOES, and other standard communication protocols
  • Analyze and control with programmability and multiple general purpose I/O
  • Notify with event-driven communications and physical outputs

Images

CR300 and CR300-RF407

Detailed Description

Terminal Descriptions

  • One switched 12 V terminal (SW12V) for powering sensors or communication devices, 1100 mA @ 20°C (The 1100 mA voltage output is for dataloggers with serial numbers ≥ 2813.)
  • Two sensor excitation or continuous 0.15 to 5 V terminals (VX1, VX2) for sensor excitation or output control
  • Six multipurpose analog input terminals (SE1 - SE6)
    • Analog functions (SE1 - SE6)
      • Analog inputs: 6 single-ended or 3 differential inputs with -100 to +2500 mV and ±34 mV ranges 24 bit ADC
      • 4 to 20 mA or 0 to 20 mA inputs (SE1, SE2 only)
    • Digital I/O functions (SE1 - SE4) consist of 3.3 V logic levels for:
      • High frequency counter (35 kHz)
      • Pulse width modulation
      • Interrupts and timer input
      • Period average (200 kHz, amplitude dependent)
  • Two Pulse Counting Terminals (P_SW, P_LL)
    • P_SW
      • Switch closure (150 Hz)
      • High frequency counter (35 kHz)
    • P_LL
      • Low level ac (20 kHz)
      • High frequency counter (20 kHz)
  • Two Control Terminals (C1, C2): C terminals are software configurable for digital functions
    • Digital I/O functions consist of 5 V output and 3.3 V input logic levels for:
      • SDI-12
      • High frequency counter (3 kHz)
      • Switch closure (150 Hz)
      • General status/control
      • Voltage source 5 V: 10 mA @ 3.5 V
      • Interrupts
      • Serial asynchronous communication Tx/Rx pair

Specifications

-NOTE- Note: Additional specifications are listed in the CR300 Specifications Sheet.
CPU ARM Cortex M4, running at 144 MHz
Internal Memory
  • Internal memory is for dataloggers with serial numbers ≥ 2813.
  • 30 MB flash for data storage
  • 80 MB flash for CPU drive / programs
  • 2 MB flash for operating system
Clock Accuracy ±1 min per month
USB Micro B For direct connection to PC (limited power source during configuration), 2.0 full speed, 12 Mbps
RS-232 For connecting RS-232 modems or serial sensors
Battery Terminal Pair (-BAT+) For regulated 12 V power input or rechargeable 12 V VRLA for UPS mode
Charge Terminal Pair (-CHG+) For 16 to 32 V from dc power converter or 12 or 24 V solar panel (10 W)
Power Consumption @ 12 Vdc
  • 1.5 mA (sleep)
  • 5 mA (1 Hz scan with one analog measurement)
  • 23 mA (active processor always on)
Best Analog Accuracy ±(0.04% of reading ± 6 µV) at 0° to 40°C
Best Effective Resolution 0.23 μV (±34 mV range, differential measurement, input reversal, 50/60 Hz fN1)
Operating Temperature Range -40° to +70°C
Compliance Information View the compliance information in the Documents section of the web page.
Dimensions 14.0 x 7.6 x 5.1 cm (5.5 x 3.0 x 2.0 in.)
Weight 242 g (0.53 lb)

CR300-RF407 Option

Radio Type Frequency Hopping Spread Spectrum (FHSS)
Output Power 5 to 250 mW (user-selectable)
Frequency 902 to 928 MHz (US, Canada)
Channel Capacity Eight 25-channel hop sequences sharing 64 available channels
RF Data Rate 200 kbps
Receive Sensitivity -101 dBm
Antenna Connector RPSMA (External antenna required; see www.campbellsci.com/order/cr300 for Campbell Scientific antennas.)
Average Additional Current Contribution @ 12 Vdc
  • 45 mA (transmit)
  • 12 mA (idle on)
  • 4 mA (idle 0.5 s power mode)
  • 3 mA (idle 1 s power mode)
  • 1.5 mA (idle 4 s power mode)
Compliance Information
  • MCQ-XB900HP (United States FCC Part 15.247)
  • 1846A-XB900HP (Industry Canada [IC])
Weight 249.5 g (0.55 lb)

CR300-RF412 Option

Radio Type Frequency Hopping Spread Spectrum (FHSS)
Output Power 5 to 250 mW (user-selectable)
Frequency 915 to 928 MHz (Australia, New Zealand)
Channel Capacity Eight 25-channel hop sequences sharing 31 available channels
RF Data Rate 200 kbps
Receive Sensitivity -101 dBm
Antenna Connector RPSMA (External antenna required; see www.campbellsci.com/order/cr300 for Campbell Scientific antennas.)
Average Additional Current Contribution @ 12 Vdc
  • 45 mA (transmit)
  • 12 mA (idle on)
  • 4 mA (idle 0.5 s power mode)
  • 3 mA (idle 1 s power mode)
  • 1.5 mA (idle 4 s power mode)
Compliance Information
  • ACMA RCM
  • MCQ-XB900HP (United States FCC Part 15.247)
  • 1846A-XB900HP (Industry Canada [IC])
Weight 249.5 g (0.55 lb)

CR300-RF422 Option

Radio Type F868 MHz SRD 860 with Listen Before Talk (LBT) and Automatic Frequency Agility (AFA)
Output Power 2 to 25 mW (user-selectable)
Frequency 863 to 870 MHz (European Union)
Channel Capacity 30 channels (default), software configurable for meeting local regulations; 10 sequences for reducing interference through channel hop
RF Data Rate 10 kbps
Receive Sensitivity -106 dBm
Antenna Connector RPSMA (external antenna required)
Average Additional Current Contribution @ 12 Vdc
  • 20 mA (transmit)
  • 9.5 mA (idle on)
  • 3.5 mA (idle 0.5 s power mode)
  • 2.5 mA (idle 1 s power mode)
  • 1.5 mA (idle 4 s power mode)
Compliance Information View the compliance information in the Documents section of the web page.
Weight 249.5 g (0.55 lb)

Compatibility

Measurement & Control Peripherals

The CR300 is typically not used with measurement and control peripherals because of its limited number of control ports. It is also compatible with low on current and voltage solid-state relays.

The CR300 is not compatible with SDM or CDM devices.

Sensors

With several channel types, the CR300 is compatible with nearly every available sensor. This includes analog output voltage (0 to 2.5 V) and current (0 to 20 mA or 4 to 20 mA) sensors, thermistors, and RTDs to name a few. It is also compatible with pulse or frequency output sensors such as anemometers, rain gauges, and flow meters. SDI-12, Modbus, and other serial sensors are supported with the RS232 port and C1 and C2 as a Tx/Rx pair. The CR300 does not directly support RS485 sensors.

Communications

The CR300 can communicate with a PC via its USB port. Compatible telemetry devices include our RS-485 converters, digital cellular gateways, RF telemetry, and satellite transmitters. Data can be viewed on an iOS device, an Android device, or CD295 DataView II Display. To use an iOS or Android device, go to the Apple Store or Google Play and download our free LoggerLink Mobile Apps.

Datalogger Option Radio Type Integrated Radio Is Over-the-Air Compatible with

CR300-RF407

902 to 928 MHz Frequency Hopping Spread Spectrum

RF407, CR6-RF407, CRVW3-RF407

CR300-RF412

915 to 928 MHz Frequency Hopping Spread Spectrum

RF412, CR6-RF412, CRVW3-RF412

CR300-RF422

868 MHz SRD860 LBT+AFA

RF422, CR6-RF422, CRVW3-RF422

Software

For the CR300 series, compatible software includes:

  • LoggerNet (version 4.4 or higher)
  • DevConfig (version 2.12 or higher)
  • PC400 (version 4.4 or higher)
  • PC200W (version 4.4 or higher)
  • Short Cut (version 3.2 or higher)
  • CRBasic (version 3.6 or higher)
  • LNDB (version 1.3 or higher)
  • LoggerLink (version 1.5 or higher)
  • LoggerNet Mobile Connect (version 1.1 or higher)

The CR300 series is not compatible with:

  • RTDAQ

Power

The CR300 series uses an external power source and has a built-in charger/regulator. Intelligent power sourcing autoselects the highest voltage from three input sources (Chg, Bat, or USB) to operate in one of the following four modes:

  • UPS (recommended) - A 16 to 32 Vdc source, solar panel (SP10, SP20), or power converter (29796) is used to charge a 12 Vdc battery, such as our BP7 or BP12.
  • 12 Vdc battery or other reliable 12 Vdc source
  • Chg only - DC power supply (16 to 32 Vdc)
  • USB - Powered over 5 Vdc USB port for setup, programming, and testing (will not charge battery or boost USB power to provide 12 Vdc to the switched battery terminal SW12)

Enclosures

An ENC10/12 or ENC12/14 enclosure is adequate for most CR300-based systems. Applications with minimal power requirements can use the ENC200 enclosure to house the CR300 and the 16869 Sealed Rechargeable Battery. The ENC200 cannot house a barometer or a battery that is larger than the 16869.

Downloads

CR300 OS v.4 (3.91 MB) 11-17-2016

Execution of this download installs the CR300 Operating System and Compiler on your computer.  It also updates the CR300 support files for the CRBasic Editor.  

Watch the Video Tutorial: Sending an OS to a Local Datalogger.

View Update History

CR300 QuickStart Program (569 KB) 03-15-2016

The CRBasic program referenced in the CR300 QuickStart videos and manual.