Bộ thu thập và lưu trữ dữ liệu truyền thông vệ tinh GOES Campbell Scientific CR295X

Thương hiệu: Campbell Scientific | Tình trạng: Còn hàng
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CR200X-Series Dataloggers / CR295X

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Bộ thu thập và lưu trữ dữ liệu truyền thông vệ tinh GOES Campbell Scientific CR295X


The CR295X is a small, low-cost datalogger that reads input from one or two sensors, then transmits the data using the GOES satellite transmitter. Multiple CR295Xs can be configured as a network, or units can be deployed individually. CRBasic, its full programming language, supports simple or complex programming and many onboard data reduction processes. It supports stand-alone operation in harsh, remote environments.

Benefits and Features

  • Small, low-cost datalogger designed for use with GOES satellite transmitters

  • When combined with the TX320 GOES satellite transmitter, the CR295X can be used in extremely remote locations.

  • Ideal applications include wind energy, rural water, water level/flow, aquaculture, water quality

  • Gas Discharge Tube (GDT) protected inputs

  • Optimal for measuring one or two simple sensors

  • Makes SDI-12, single-ended analog, pulse, switch closure, and bridge measurements

  • Battery-backed clock that ensures accurate time is maintained while datalogger is disconnected from battery power

  • Program with LoggerNet, PC400, or Short Cut to fit your setup

  • PakBus, Modbus, and SDI-12 protocols supported

Detailed Description

The CR295X includes an additional RS-232 serial port that allows communications with the TX320, TX312, or SAT HDR GOES satellite transmitter. It has several input channels for measuring a variety of sensors. Gas discharge tubes provide rugged electrostatic discharge protection for the inputs.

The CR295X does not make differential measurements and is not compatible with SDM devices, multiplexers, or thermocouples. (Refer to the Compatibility information on the web page for compatible sensors, peripherals, and software.) Recalibration services are not offered for the CR295X dataloggers.



Note: Additional specifications are listed in the CR200X-Series Specifications Sheet.

Maximum Scan Rate

1 Hz

Analog Channels

  • The single-ended analog inputs can also be used as control ports.

  • 5 single-ended (no differential) individually configured

Pulse Count Channels


Switched Excitation Channels

2 voltage

Digital Ports

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

  • 2 I/O

Communication Ports

2 RS-232

Switched Battery Port


Input Voltage Range

0 to 2500 mV

Analog Voltage Accuracy

±(0.25% of reading + (1.2 mV)x(offset)) at -40° to +50°C

Analog Voltage Resolution

0.6 mV

A/D Bits


Operating Temperature

-40° to +50°C

Power Requirements

7 to 16 Vdc

Typical Current Drain

  • ~0.2 mA (quiescent)

  • ~3 mA (active)

Clock Accuracy

  • 8.2 min./month (@ -40° to +50°C)

  • 1 min./month (@ +25°C)

Protocols Supported

PakBus (leaf node only), SDI-12


3 years


14.0 x 7.6 x 4.8 cm (5.5 x 3.0 x 1.9 in.)


242 g (8.5 oz)


Final Storage

512 kB of flash memory for approximately 125,000 data points

Operating System

106 kB of flash memory

Intermediate Storage

8 kB of SRAM for communication buffers, calculations, variables, etc.



CR200X-Series Dataloggers / Wireless Sensors

CR200X-Series Specifications


CR200/CR200X-series Dataloggers

PakBus Networking Guide

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