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CR23X  Micrologger for Data Acquisition
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Overview

The CR23X Micrologger® was a portable, self-contained package that could store over 1,000,000 data points. It consisted of measurement and control electronics, communication ports, keyboard, 2-line alphanumeric display, power supply, and a battery-backed clock. The CR23X measured most sensor types directly, communicated via modems, reduced data, controlled external devices, and stored both data and programs in either non-volatile Flash memory or battery-backed SRAM.

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Benefits and Features

  • Compact, self-contained data logger
  • Stores 1,000,000 data points (nonvolatile)
  • Data format options are mixed array (default) or table

Images

CR23X with four terminals attached
CR23X with four terminals attached
CR23X with four terminals attached
CR23X with four terminals removed
CR23X with two terminals attached and two terminals removed
CR23X with four terminals attached
CR23X with four terminals removed
CR23X with four terminals attached
CR23X with four terminals removed

Detailed Description

The CR23X is a self-contained, rugged data logger that can measure most sensor types directly, communicate via modems, reduce data, control external devices, and store both data and programs in either non-volatile Flash memory or battery-backed SRAM.

The CR23X has an integral, 2-line, alphanumeric display and power supply. A battery-backed, real-time clock and 2M of nonvolatile data storage is included. The CR23Xs are available with a sealed rechargeable battery base, an alkaline base, or in a low-profile version without batteries.


Compatibility

A typical field-based CR23X system consisted of:

  • CR23X Micrologger with specified Operating System and Alkaline, Rechargeable, or User-Supplied Power Supply
  • Weatherproof Enclosure
  • Communications Peripheral(s)
  • Programming and Communications Software
  • Sensors
  • Data retrieval peripherals

Specifications

-NOTE- Note: Additional specifications are listed in the CR23X Specifications Sheet.
Analog Inputs 24 single-ended or 12 differential, individually configured
Pulse Counters 4
Switched Voltage Excitations 4
Control/Digital I/O Ports 8
Continuous Analog Outputs 2
Serial I/O Port (CS I/O) 1
RS-232 Port 1
Scan Rate 100 Hz
Burst Mode 1500 Hz
Analog Voltage Resolution To 0.33 uV
A/D Bits 15
Programming Edlog
Data Storage Mixed Array, Table
Telecommunications Standard, Modbus, Alert
Standard Operating Temperature Range -25° to +50°C
Extended Operating Temperature Range -40° to +80°C
Corrected Display Temperature -20° to +40°C
Survival Display Temperature -40° to +85°C

Downloads

CR23X OS v.1.19 (690 KB) 28-03-2006

Execution of this download installs the CR23X Operating System (Mixed-Array) on your computer.

Note: The Device Configuration Utility is used to upload the included operating system to the datalogger.


CR23X-TD OS v.1.15 (703 KB) 28-03-2006

Execution of this download installs the CR23X Table Data Operating System on your computer.

Note: The Device Configuration Utility is used to upload the included operating system to the datalogger.


CR23X-PB OS v.1.10 (706 KB) 28-03-2006

Execution of this download installs the CR23X PakBus Operating System on your computer.

Note: The Device Configuration Utility is used to upload the included operating system to the datalogger.


Device Configuration Utility v.2.33 (49.6 MB) 07-07-2025

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 or 10 (Both 32 and 64 bit)

View Update History

Frequently Asked Questions

Number of FAQs related to CR23X: 2

  1. Look for a stamp on top of the battery. The stamp may be in a date format of YYMMDDXX where:

    • YY is the year.
    • MM is the month.
    • DD is the day.
    • XX is the manufacturing plant.

    This indicates the age of the battery.

  2. A practical maximum is to connect one multiplexer per every two control terminals on the data logger. Control terminals can be shared between multiplexers to increase the number of connected multiplexers. Sharing terminals, however, requires more complex wiring and programming. Users who would like to connect more than one multiplexer per every two control terminals are advised to contact a sales or support engineer at Campbell Scientific for assistance.

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